ddf6000d radio direction finder user manual
Contents
1. C 3173 DDF6103 Power Supply 51 0308 184002 R301 mm 10K YE N O MBR360 8 22 ADDS azan Low ESR DE 1 Low ESR 0309 R305 1305 K e 10K RED 10 13 5V a RED N QUT O C MUR120 D R319 1 0305 mme i 2 ADDS Com C312 LowESR 1025V 4 Tant R320 1 96K 5 L L GJ 0310 0304 uos 7302 10K dis BLU OUT 2 MUR120 9 R321 C J 200 C iL 47029 Sec 302 C309 C 4 Low ESR 1025 1 f 4 7 C326 6322 i S 1025 196K C L e 1303 0302 1303 240 6 5 MBR360 25UH C306 R307 470125V 30K C304 gales Low ESR Low ESR R309 10K T307 BLK2. 6473 C498 0425 462 ot 01 01 01 POWER F401 LMA LMB Lomp w A Y QT XO 25mm Jack 1435 RF SUMMER RU 185 BEADS BEADS BEADS BEADS bn BEADS 27 wer 1 ISW XAR 9 en 63 M 2 VINRTN 2 EB AOR 10 EB EB E ER EC 3 EC sy dg PAS 11 m AGND2 t ED EN 4 x ED EG t 4 gt CN 12 EG EH EF 5 EF EG 13 5 EG ES EH 6 Y EH C453 catg TOF 14 m 4ANT ai 7 Se 9 1 AUX INPUT SMETER INPUT 9 2 15 5 a los 8 GND AUX IN SMETER I E BEAD pue BEADS gt C458 35mm Jack 4 M 35mm Jack SS SS SS SS SS SS SS SSS n C465 C468 C432 C429 o 0 0 01 AUDIO INPUT 01 EM AUDIO Js2 4 VN 1 2 WN VINRTN 3 4 ORN 499K ul 35mm Jack INT SPKR 6 lt 2 EXT SPKR 7 L SPRRRTN 1 1406 d ud ra TO POTS SMETER IN RXDC og TXDB MM 2 AUDIO 19 9REMZ t od ROB mm SANE 1419 ar RXDD BEADS 5 BEAD3 D SC 9 10 wi f 12 AA ew 1438 TOF Dess BEADS 3 5mm Jack DCE C450 01 a 01 C455 c420 01 446 C409 C483 C486 9 EXT SPKR 01 o 01 01 01 01 ot BEAD3 J EXT SPKR INTSPKR SPKRRTN 1439 wel ts Le BEADS 3 5mm Jack BE
3. ine 11 4 5 ICOM R7100 and R8500 Recelvers 11 SU VSPA TION cates Ta Sua runi 15 SL T rg oncmitia izatlon us deo io eie veter eda x epo rend er eee eua eiu 15 RS clas UA 15 5 3 Direction finding in the continuous mode sse 16 5 4 Direction finding in the pulse 17 3 5 t pretia Dear daa iot descen ges Schon Tabs an te 18 OO Remote Omir e eth eed tet etd reru Ve teu a 19 O L Introduction e att i u le 19 6 2 Hardware Interfaces metere tM usi io 19 6 2 1 Connector JI port 0 uto a n 19 0 2 2 Connector 2 EE 19 0 2 3 Connector Jd POr T uoo u ans 20 MessaseProt ocolsa m m ere ch et sc tdi e Ote ese fu ec du mero 20 6 3 1 ASCII Protocol H 20 CIV OC ON toe re Sha ae bn icd 20 6 4 DDEOG000D EE 20 CPT edet tus reu sse au M ue 20 64 2 Protocol ds bri iir eei Anat u again a eae 24 Non seis ees n e cose aet
4. 6052 2 Figure 4 1 Fixed Site Antenna 8 ut 6052 4 a4 The antenna must be mounted to the top of a tower or mast If your tower accepts a mast at its top mount the antenna as shown on the figure on the left If you are mounting the mast to another mast use coupling clamps such as Decibel Products Model DB 365 OS Space the two clamps about 18 inches apart as shown on the figure on the right Use care when lifting the antenna assembly once the elements are attached The threaded studs used to attach the antenna elements cannot support heavy or sudden loads produced by bumping or dropping the antenna After installing the antenna secure the control and RF cables to the mast using nylon ties so that they are kept away from the antenna elements The audio output from the receiver should be connected to the DF audio input J3 using the 40DK40 cable provided The receiver s S meter output can be connected to J5 using cable 40DK25 DC power is connected through J7 from a 12 VDC 1 5A power supply Figure 4 2 shows the fixed site system cabling 4 3 Mobile installation Four antenna elements are used for mobile operation At frequencies below 500 MHZ magnetically mounted quarter wave whips are used These antennas must provide a good coupling to the ground plane and must be of exactly the same type It is especially important that the c
5. KB RES BRS gt DE ADD 10 9 N MQ e ADD 00 mo 4 01 Ce MS 5 02 15 AD3 4 08 M 3 S 37 M SI 08 8 mo 9 9r WAH 0 2 MA At icE2NCC AMWENCC 2 c o L Via 27651212 MAB 48 64K Bytes EPROM 0x2000 Ox3FFF amp 0x8000 OxFFFF DECODE 1080H 0126 2 m Im m 1 RCVR_AGC_CS o ROM M Dem M6 2 M 72 WF MEM CS L PEE M 02 3 CS 1 2 o WF MEM gt D WH 2 PAE EM ES 03 Sz 5645 4 15 CT x gt Thea M TES Da MA s e D om S 05 9 la 6 6 o b 5 RAM CRL gt 15 23 5 06 102 4 4 en MATS 7 13 gt 17 3 D7 5 9 2 MARKER 2 gt Mu 3 n MA 9 S232 IN t 4 TACT TE 10F0H DE 2 RO T B 10500 16 lt 7 m gt RT tg 158 mmm MAO WRI MAT my 0136
6. 3 D gt De lt 0 gt 515 CS gt P gt DIM K8 RESET VPWR KB_CLK vec ovce S10 3 4 BRG 0 13 3 4 DECR AVG TIME st MOM MOM 3 sl o4 ON OFF aS d 14 3 DECR SWEEP FREQ WR A VPWR 5 POWER KB MOM KB_RESET TKS RESETS e KB CS 2 su gt 812 eer as 57 52 K813 3 of 2 3 4 DM MA MOM MOM MAQO 7 MAO 59 53 x 14 ieu KB13 Ee NCRAVGTIME ux MOM MOM X We 58 55 Z w 15 3 of 14 3 4 4 INCRSWEEPFREQ MOM MOM 00 7 gt ER KB_0 0 DI 02 mau 07 w 06 2 ee DDF6101 Keyboard Switches 40 0Deg 225Deg 45Deg 675Deg LED COL 0 90 Deg 1125Deg 135 Deg 157 5 Deg OHz 300 Hz 600 Hz LED COL 2 1200 Hz 2400 Hz Pulse Mode Power 01 AA LED ROW 0 RED 02 AA LED ROW 1 RED D3 AA LED ROW 2 RED LED ROW 3 RED D5 AA LED ROW 4 RED D6 AA LED ROW 5 RED 07 AA LED ROW 6 RED 08 AA LED ROW 7 RED 031 AA LED ROW 0 YELLOW 030 AA LED ROW 1 YELLOW 029 AA LED ROW 2 YELLOW 028 AA LED ROW 3 YELLOW 027 AA LED ROW 4 YELLOW 033 AA LED ROW 6 RED 017 AA LED ROW 7 YELLOW 180 Deg 202 5 Deg 225 Deg 2415 Deg 292 5 Deg 315 Deg 337 5 Deg 1
7. Ce Di 2 12 06 4 5 LS w r L5 DI D 8 e 9 2 128 MRS gt 66 5 0 4 A CS 3 pen E 9 16 DEM SIN SE ts ES 1 R143 17 Cp RIMA COS S m Lt 12 03 3 499 499 10V INPUT 10 s E 14 ov input 7 RI35A ame 1 2 8 R12 255K lt ADIGE LF347 R133A pies R135 UNSA SMETER 42 gt 3 R140 Wa ee 102K Iran 0106 R133 499K Wa 047 5 DDF6102 Demods amp A D 43 STATUS DB11 DB10 089 088 D I ve GNE gt Ex N Wa BY DGND 0133 R145 NCC 8 98304MHz 0101 TIL CLOCK SZ Yellow ADJO 15 vec or E 19 MAR 9 S E DATA utes am 21 _ 3 512 66 22 RES ADD 4 5 x 2 2 READY 02 7 DEI jn 5 GG 4 amp 3 5 1K EM READY P16 04 8i ADS 4 15 BUSWIDTH P17 D5 o ee AU 6 RES
8. P eue 23 EE HE ee EE 23 EE EE 23 6 6 Typical Operation nate etum d Pu Gua aA 23 6 6 2 PC connected to port 0 71 RS232 receiver connected to port 2 12 24 6 6 3 PC connected to port 0 71 CIV 21 000 000 00 0 000000000008 24 6 6 4 PC connected to port 0 71 ICOM receiver connected to port 1 24 6 6 6 Two DDF6000D s with Icom Receivers Connected to PC Using Radio Modems 25 Modem SOUND TREE a DE T MONDE ania seats 25 6 6 8 Command Interlock RE c Mode mes 25 Tntroduction S Manet 35 tet petisset siet aede ie de 35 T3 p D 35 TA Friangulation EES 36 NR S DIR 37 8 1 Schematics Rees 37 8 2 EPROM replacement incasii ioe 37 1 0 Introduction The DDF6000D is a high performance radio direction finding system that operates using the synthetic Doppler principle in which a circular array of antennas are combined in a way that simulates a single element rotating in a circular path As the simulated element approaches the wave front of an RF signal the frequency increases due to the Doppler effect
9. 32 PC ADDR EO 13 5 FEE 24 1 b E GND E 3 RXD 15 TXD z SERIAL DATA EXPANDER DDF6077 NOTE Cable end connectors shown 5 op 9 4 i i i 3 mo gt 7 2 190 5 6 0 e 1 S 5 d i 7 9 58252 MODEM MODEM 5 5 4 3 7 i 2 R2 i E 1 1 GE SHIELD 0898 i Figure 6 6 Two Remote Sites Using Telephone Modems 33 1 07 SHIELD DB25P SHIELD DB25P DDF6000 i RB500 ADDR 01 ADDR 8A hex Remote 38m 3 5mm 0056000 f 850 ADDR 02 ADDR 4B hex Remote GND k 3 5mm 3 5mm 9 SHIELD DEOS NOTE Cable end connectors shown OMNI Two Remote Sites Using Radio Modems Figure 6 7 34 DDF6000 ADDR 01 DDF6000 ADDR 02 GND GND 88500 ADDR 8A hex Remote 35mm 8500 ADDR 8B hex Remote 35mm 7 0
10. 48 13 5V 13 5V AGND Q DGND MA 0 7 TxDC EE mc 51102 TOB C196 is 2 5 ROB HH ROD 8 9 10 2 ci c2 4 TD RxD om s m x 5 2 TODA lt 1 RxD KE 18 1 TxDC o RC H 3 RxDC DGND XB gt r gt 2 2 2 RXDD RXD 2 2 _ KB 1 i lt TTUCMOS MO S232 vec RIOT lt 0 gt om 2N222A Q101A 2 2222 49 9K DDF6102 Serial Interfaces 49 om n d 4 4 4 4 4 4 4 1 4 4 1 E 4 4 4 4 4 1 1 elt um un um un 9 u ug um vec ESCH EECH 4 4 n n 4 4 n 4 4 4 1 4 4 1 4 4 1 1 1 1 1 037 938 039 040 042 045 044 046 047 058 060 op om CHI Ce B DGND 4 1 1 ut 1025 1025 1005V 0 3
11. Contro DSE6117BSCH Channel F T a RF Sum lt WO M m Contro a DSF6TI7B SCH Channel G JG P RFSum CI SN M 2 Contro _ DSG61178 SCH Channel H JH d RF Sum 5 RF in sw 906 2 Control Channel J1 DSH6117B SCH 8 Element Commutator Assembly DDF6117 54 IN TNC C15 001 9SW 9VDC C12 001 7 PG RIA ROA 150K 150K ROA EM 150K CA CAA UA 3 lt 1 3 1 2 N m 001 001 4 gt de 3821 E MSA1105 EI V4 3 150K 2 DAA 3801 48K 7 3 9VDC E A RA RGA 121K 432 150K 499 EA Control D3A raba 4 Si 00 n 130 001 150 499 DDF6117 Channel 55 Channel A RF Sum sue TNC 9901 d S rn ae AA DC Control E oc N DSA61I5ASCH ZN Channel B ae cu JB 10 mE RFSum A o 9901 FS RF In 1 Control 686 Ww ww 10 Channel C 001 4 RF Sum FS RF In 2 00 Control DSO61
12. SPEAKER DISPLAY LOGIC FILTERS JP6 58 JP8 3 SHEETS 9 SHEETS KEYBOARD SWITCHES AUDIO PROCESSING 33 DISPLAY LOGIC DEMODS amp A D LED DISPLAYS PROCESSOR DECODING WAVEFORM GENERATOR WAVEFORM AMPLIFIERS CONNECTORS 85232 amp CIV INTERFACE J2 4 amp e J82 DECOUPLING CAPS amp SPARES J1 s JS5 DDF6101 DDF6102 DDF6114 POWER SUPPLY JP5 DDF6103 DDF6000 Display Processor 38 00 7 Keyboard Input us 00 a 21 RLO lt B B Bt gt B 02 4 16 14 sku SZ 3 2 LP Zi 082 R2 VI es e L 2 083 273 a l L 8 RA 2814 e L 085 RLS m 285 o t x toa L Z 086 DB RU E 0 SHFT DR WR CNST 2 lc 245 u2 Ut AJ RESET so C 30 NA a 8 LED COLO gt s L EH 2 8 pS we 7 LED COL f x lt so L ve Ne c LED COL 2 5 WOH 5 LED gt 4 p pi ELS LED COL
13. 1135 1000 m 2 3 2 RIS gt D 00 D gt M 1 5 01774 5 Di 4 5 MAS n we BE Q SRO MAS 2 7 KEYBRD CS s 02 77 6 Sao D 7 5 MAS B vi ES gt 02 o AUD OFF gt o gt MAG 73 Bn WAVE CS 087 9 gt Dj 8 3 MAT __ SELFIST D SQ S 2 XD C8 REM Di 13 7 4 12 12 00 7 vs aS cg gt o ANT SW2 gt o WFO gt 00 7 gt vec 20 CSL Dj 14 15 08 774 15 v 5 05 ATT ON 5 o WET 9 RS232 N CSi 06 17 16 WIN 2 D6 17 16 4 RS232 OUT CS p 3 15 rng LANLSWI w 5 le am i deaa CS DR gt wo WE lt gt AN Gn 1 doc Waveform Signals RS232 OUT CS WAVE CTL CS rat on 1060H 1020H mmer mmer utat 7 D xa LU XA gt Di 87 7 gt 0268 4 RSA LB x 5 m t Jo Hx SOFCOM gt CISA R 05 DSRA vec 3 D6 4 e 06 9 5 D 8 0103 22 100 L MO 3 org 13600 m 6 acn m Dj 5 f 1 32 Ruan B 5 co Hi 4 RIS B cue A 2 om TOOFCOM 4 HA TRB N Dor 52 06 454 20 CSB DSR 07 71 14 50 Dm 07 L 4 cc CD B 5 om gt RB R __ gt Wm 2 WR cuo 18 35 XTAL1 XC f c LS RXC MAT
14. 2 Pu 153600 Hz mee CLOCK 2 6 vec x9 1000 vec 9 4 aw DRC me ee 4 ap _ aa R RLC x Dm 0 lt m TARDY A A 8 xo 9 w 18600 2 9 63 Enpe 15 5 WR R146B NTA RIS D Am wre AANT ncs d NTC crs D 8 xS L coo pwa 1 anc ser 18600 1668 CLKSELVCC 57160654 DDF6102 Decoding 45 MAO MAZ us 9 2 o E 1025 FOOM gt XL 1026 3 gt 2 0 1027 E S 8 n L mom D 09 ez 1030 S x 07 081 ow 10 CLK INA DA ADRO DR 0 C pa Aon n 3 LOAD 8 10 DA ADRO Moo a pz 24 38 DAI DG ZS Je 1017 SRT DA ADRT 005 Ge Eu DAS 17 1011 1019 27 LOAD_DAC d DIM aA 28 DIAS WADS 1901100 DIAS 0000 HS 3 wos DAT mem 02 3 S x 1023 0130 CLK_INB 1 em Bi 2 5 2 4 WD 9 02 M Di 3 8 7 8 Eu 03 D 4 16 WADS 7 Se ot 03 5 32 WAD4 6 E EN s 05 M ____56 06 W
15. at J2 will operate using ASCII message protocol Port 1 J4 is not used in this case CIV is a packet format 2 wire bus system developed by ICOM and used in most of their radios Multiple CIV devices can be placed on the CIV bus to communicate with each other Each device has a unique address 6 2 Hardware Interfaces Figure 6 1 shows the wiring of serial interface connectors J1 J2 and J4 Note that the signal names are defined for the Data Terminal Equipment DTE device so that TXD is an input and RXD an output on J2 that is wired as Data Control Equipment DCE 6 2 1 Connector J1 port 0 Connector 71 is a DE9S wired as Data Control Equipment DCE voltage levels and impedances are RS232 11 may be connected to the serial port of a PC using a straight through DE9P to DE9S cable CTS RTS DSR DTR CD and RD are not connected The port 0 baud rate is 2400 with 8 data bits no parity and 1 stop bits 6 2 2 Connector J2 port 2 Connector J2 is a DE9P wired as Data Terminal Equipment DTE Transmit and receive voltage levels and impedances are RS232 J2 may be connected to PC using a null modem DE9S to DE9S cable RTS CTS DSR DTR CD and RD are not connected The default baud rate of port 2 is 1200 with 8 data bits no parity and 1 stop bit The baud rate may be changed to 2400 4800 baud or 9600 parity may be changed to even or odd the number of data bits can be changed to 7 and the stop bit length can be c
16. 2Avgs 10 Avgs 20 Avgs Cal Atten D9 LED ROW 0 RED 010 LED ROW 1 RED Dit AA LED ROW 2 RED 012 AA LED ROW 3 RED 013 AA LED ROW 4 RED LED ROW 5 RED 015 AA LED ROW 6 RED 016 LED ROW 7 RED 026 LED ROW 0 YELLOW 025 AA LED ROW 1 YELLOW 024 LED ROW 2 YELLOW 023 AA LED ROW 3 YELLOW 022 LED ROW 4 YELLOW 082 AA LED ROW 7 RED LED ROW 6 RED 018 1008 LED ROW 0 1 LED ROW 5 2 13 LED ROW 1 LED COL 4 3 LED ROW 6 10 LED ROW 2 LED ROW 7 6 9 LED ROW 4 7 8 LED ROW 3 5082 7611 019 105 LED ROW 0 1 z 14 LED ROW 5 2 13 LED ROW 1 LED COL 5 3 LED ROW 6 10 LED ROW 2 LED ROW 7 6 9 LED ROW 4 7 8 LED_ROW 3 5082 7611 020 15 LED ROW 0 1 K LED ROW 5 2 13 LED ROW 1 LED COL 6 3 LED ROW 6 10 LED ROW 2 LED ROW 7 6 9 LED ROW 4 7 P 8 LED_ROW 3 5082 7611 D21 SMETER LED ROW 0 1 2 LED ROW 5 2 13 LED ROW 1 LED COL 7 3 LED ROW 6 10 LED ROW 2 LED ROW 7 6 9 LED ROW 4 7 8 LED ROW 3 DDF6101 LED Displays 41 5082 7611 ROW 0 gt LED ROW 1 LED ROW 2 LED ROW 3 LEDROW4 S LED ROW 5 TED ROW 6 gt TED ROWT LED ROW T gt LEH LED COL 1 LED COL 2 lt LED COL 3 gt LED COL 5 EU VUL LED COL 6 2 LED COL 7 LED ROW 0 LED COL 0 LED
17. 3 1 on shows the front panel controls and figure 3 2 shows the rear panel connectors The items marked A in the following paragraphs refer to the controls and connectors in these figures 1 Press the red power switch to turn the unit on or off A2 Press this switch to dim the front panel LEDS Pressing it again returns the LEDS to full brightness A3 Bearing data is computed twice per second The front panel displays a moving average of the last N bearings calculated The number of bearings averaged N may be increased or decreased by pressing the up or down arrow keys Note that selecting N 1 causes CW and CCW rotation bearings to be displayed while higher settings average both CW and CCW rotations recommended A4 Bearing is displayed by illumination of one of the red LEDS on the circular display The center yellow LED indicates that power is on 5 Bearing angles in degrees are displayed in the 7 segment display Both the circular LED display and the digital display are held for 10 seconds after the signal disappears To help distinguish when the bearing is updating and when it is being held the decimal point following the units digit alternates on to off whenever the bearing updates 6 Signal strength is indicated in this 7 segment display It should be calibrated so that the signal strength is 0 when no signal is present and 9 when a very strong signal is present See the description of controls A8 A10 and 11 for the method
18. 4 5 L 5 5 LS LED COLS gt HE b L IER S gt oo L 5 0 ga w LED COL7 gt SE E SUB S 080 2 mees DSPRE _ RESET DISPLAY POWER 070 B s RI 27 gt 2 INA LED 4 7 R 27 1 INC A5 5 6 NE lt LEDROW2 7 R4 27 we c eem 6 NH qu R7 27 GND lt LED ROW 4 DISP RET HEEN Ed pu LED RWS R5 27 LED ROW 6 Snc RB 27 lt TED ROW 7 DISPLAY POWER DISPLAY POWER 2 vs 3 os ser F cs 1 1 1025 A 1 1 4 1 1025 1025 DDF6101 Display Logic 39 u Y T Y D wus a 5 po X QA py x 8 DISPLAY_POWER DISP_RET VVV VDISP DISP RET 35V Keyboard Inputs Keyboard Drives DISPLAY_POWER di 5 b DISPLAY POWER DISP RET a CASE DISP RET ON OFF de XB 00 Sken 4801 Di 2 28 02 gt gt 802 03 P D DISPLAY_POWER KB 12 gt 807 00 HEH POWER pe
19. 4 DDF6000D Messages 6 4 1 ASCII Protocol In ASCII mode DDF6000D commands may be received through port 0 J1 or port 2 J2 The first character in the message must be a 5 hex 24 which is followed by a 1 to 3 character command followed by the lt CR gt character Valid DDF6000D commands are listed in Table 6 1 20 Recognized DDF6000D commands except for commands 0 982 983 and 997 are executed and acknowledged by the message SOK lt CR gt Unrecognized DDF6000D commands such as 409 lt CR gt are acknowledged with the message NG lt CR gt The response to command 0 DF data request is the message XXXYZ lt CR gt In this message XXX is the bearing angle Y is the signal strength and Z is a parameter indicating the validity of the returned data All characters are ASCII digit characters hex 31 means 1 In the DDF6000D bearing and signal strength are computed on a 0 5 second interval The sampling interval of the serial readout command 0 may be shorter or longer that 0 5 second and the validity flag Z provides a method to synchronize the two clock cycles After the data is read out serially the validity flag is set to zero so if a second readout is made before the bearing is updated the validity flag Z is returned equal to 0 After the data is updated within the DDF6000D the validity flag is set to 1 if the data meets the signal to noise requirement and it is set to 2 if it does not It is recommended that the PC
20. JD SEN INC TNC _ DDF6060 RF SUMMER I a 1 G i 1 pole T ee T SiS T K TNC P2 95 Circular DDF6119 12 Control Cable 40DK40 Cable DDF6116 12 Coax Cable 40DK25 Cable P5 DDF6110 Cable EE 2 5mm BNC 3 5mm Ext Spkr i Auto power plug RECEIVER d 00 6000 5 0 Operation 5 1 Turn on initialization During the initial turn on of the DDF6000D the parameter values that were last set sweep rate port 2 communications parameters etc are restored There are two exceptions 1 The software determines whether a 4 or an 8 element antenna is installed and selects the corresponding waveforms 2 The software determines whether a plug has been inserted in the CIV jack J4 and selects the appropriate protocol either CIV or ASCII During the initial turn on the bearing and S meter displays will momentarily indicate the software version used by the processor and the DF serial address The later is especially important because it can be changed under serial command and if the address is forgotten no CIV communication is possible The software version is displayed as in the bearing window and 1 in S meter window The DF address will be displayed as XXX the decimal address value in the bearing window and 2 in the S meter window It is also possible to restore the factory default values of all parameters by entering from the front panel control
21. and as it recedes from the transmitted source the frequency decreases The amount of frequency change deviation is related to the speed of rotation and the diameter of the antenna array while the modulation frequency is equal to the frequency of rotation the antenna sweep frequency When connected to a narrow band communication receiver the sweep frequency is present on the audio output To obtain the bearing angle the direction finder processes this audio output Many features are present in the DDF6000D e The system may be used with either an 8 element high accuracy fixed site antenna or a 4 element magnetic mount antenna for mobile operation e The sweep frequency may be set to 300 600 1200 or 2400 Hz to avoid tone frequencies that may be present in the signal modulation e Advanced signal processing is used to detect the signal with the receiver either squelched or unsquelched Both continuous and 150 millisecond pulsed signals can be processed e The sweep direction automatically reverses from clockwise to counterclockwise to compensate for asymmetries in the receiver An internal audio amplifier and loudspeaker are provided for monitoring the signal and a sharp notch filter removes the sweep frequency for clarity e Two serial ports permit remote control of both the direction finder and an associated receiver from a single PC COM port The secondary serial port may be configured for either RS232 ASCII operation or as a
22. of calibrating S meter The S meter displays dash if the S meter input is not connected or if the display has not been calibrated A7 Antenna rate of rotation can be increased or decreased by pressing the up or down arrows here When a sweep rate of 0 is selected all antennas are turned ON This mode is useful in detecting a very weak signal but bearings are not displayed 8 Switch enables or disables the calibration mode The calibration mode must be enabled for the bearing and S meter calibration switches to be effective 9 Pressing this switch when the calibration mode see above is enabled causes the present bearing to be set to 0 degrees Momentarily pressing this switch when the calibration mode is not enabled causes the present bearing to be incremented by 1 degree If the switch is held down the bearing changes in steps of 10 degrees 10 Switch calibrates the S meter to 9 on the present signal provided the calibration mode is enabled see 8 above Switch calibrates the S meter to 0 on the present signal provided the calibration mode is enabled see A8 above A 12 Press this switch to change the direction finder alternately from the Continuous to the Pulse mode and back The DF should be used in the Continuous mode on most signals voice unmodulated carriers etc and the Pulse mode when the signal is known to be on for 150 milliseconds every 0 5 seconds 13 Switch causes a 20 dB attenua
23. the following calculation validity int V 64 templ int 64 validity temp2 int temp1 16 temp3 templ 16 temp2 smeter temp3 1 angle temp2 200 U 22 In the DDF6000D bearing and signal strength are computed on a 0 5 second interval The sampling interval of the serial readout command 0 may be shorter or longer that 0 5 second and the validity flag Z provides a method to synchronize the two cycles After the data is read out serially the validity flag is set to zero so if a second readout is made before the bearing is updated the validity flag Z is returned equal to 0 After the data is updated within the DDF6000D the validity flag is set to 1 if the data meets the signal to noise requirement and it is set to 2 if it does not It is recommended that the PC which is requesting the bearing data do so at a rate of approximately twice per second and that it ignore any returned data that does not have a validity Z equal to 1 The response to command 982 identify hardware is FE FE 01 H 60 00 C FD assuming that the DF address is 01 The characters H 6 0 and C are ASCII for example hex 36 6 The response to command 983 identify software is FE FE E001 5 3 0 1 FD assuming that the DF address is 01 and that the EPROM is version 3 01 The characters S 3 0 and 1 are ASCII for example hex 33 3 The response to command 997 send panel message is FE FE EO 01 P X Z FD assuming that the DF add
24. which is requesting the bearing data do so at a rate of approximately twice per second and that it ignore any returned data that does not have a validity Z equal to 1 The response to command 982 identify hardware is H6000C lt CR gt All characters are ASCII The response to command 983 identify software is 54 01 lt gt assuming that the software contained in the EPROM is version 4 01 All characters are ASCII The response to command 997 send panel message is PXYZ lt CR gt that is decoded as described below All characters are ASCII ll 21 6 4 2 CIV Protocol DDF6000D commands may be received through port 0 J1 or port 1 J4 The transmit address in the message must be that of the controller hex E0 and the recipient address must be the DDF6000D default hex 01 Valid DDF6000D commands are listed in the Table beginning on page 24 Recognized DDF6000D commands except for commands 0 982 983 and 997 are executed and acknowledged by the CIV OK message FE FE E0 01 FB FD assuming the DF address has not been changed from the default value of hex 01 Unrecognized commands are acknowledged by the No Good message 0 01 FA FD again assuming the default DF address The response to command 0 DF data request is the message FE FE 01 U V FD In the message U and V contain the bearing S meter and validity data using a simple data compression scheme To decompress the data the PC must implement
25. 15A SCH 81 Channel D EE JD 4 RFSum o d5 4 TNC Er pus 9SW p a 27 ph am Ga 4 T Control lt gt DSD6115ASCH DDF6111 subboard eon DDF6115 4 Element Commutator Assembly 56 RF In DIA 352 gt E 56 RIA RA C ROA 150K 150K 4 e C10A n 3 n 3 gt 4 4 2 I IN V IN L 001 mm 01 MSA 105 ix mm ac lt R3A 5 10 lt 40 lt 40 15 z a 150K a 7 57 3 2 NA 9SW ASH S RI0A RA 150 499 I 3 L 43K 3821 a 7 RTA 150K 493 DDF6115 Channel A 57 1 BRN AGND1 P2 9 BLU 95 1 BRN 2 RED EA RED 10 ORG EB BLK 3 YEL EC YEL 3 WHT AGND2 GRN RHET BLK ED BLU ORG 7 L 8 E Drain Wire 9 95 7 au 15 3 280 956 321 CABLE END SOCKET SHIELD DA15P 5927 CL 8 COND 24 777 RRA 15P Plug 17 RRD1 M01 100 Contacts PART NUMBER CABLE LENGTH 17 1657 15 Backshell DDF6119 12 3 6 M 12 Mobile Control Cable 58 Dash number of part indicates leng
26. 2 2 gt gt T m 10K DIP Iran DU 2 P DE 1 6 ur ge VOUT PAY 10K DIP Iran 015 Z N 8 7 10 Vor gt gt LAN m eg 10 Ian 015 VA 1 8 9 5 008 T s pp 10K DIP Iran CM 015 DDF6102 Waveform Amplifiers AGND vec 455 i VPWR 25 A VN NE VN 2 TF 4 WA From Power Supply sau 2452 d ps 2 ATI ON DA VEH R109 OREM up 1 gt 4 VEH mo OREM Weg 350 gt e b 1 2b o voc ONOFF Di S AE 02 03 49 1 b D4 5 om P MAD WRI HAO 5 Eau gt x du b RD DIM a KB RESET Dues S 2 VPWR 2 BES vec o n b 4 TA Keyboard Connector ssw 2 AGNDI EB EA AND E 58 E gt ZED SFR 9 E R10 5 Ey VN 1 75 LN VINRIN 1 SREMT 8 6 SPRRRIN Sw 7 d lt CSMETER AXN AUXIN gt AUDIO lt AUDIO TORM DDF6102 Connectors
27. 8500 manual if it appears that the receiver jack is not providing an AGC output The default CIV address for the R8500 is 4A hex This is 74 decimal Some of the software programs require a decimal entry while others require a hex entry The R8500 allows baud rates of 300 1200 4800 9600 or 19200 Do not attempt to connect the R8500 to the direction finder at 2400 baud on port 1 the CIV jack The R8500 can be programmed for transceive operation in which any change of its frequency for example turning the front panel tuning knob causes the new 11 frequency to be broadcast on the CIV port Be sure that transceive is turned OFF Refer to the R8500 instruction manual for these settings 12 DDF6116 xx Coax Cable Fixed Site Antenna 1 TNC FN e s DDF6052 6053 6054 6055 6056 or 6057 8 8 a gt 14 ee EI S 4 gt 12 P2 MW pe Jen 3 md STR metes dere asso in 10 DA 18S Circular 9 5 DDF6118 xx Control Cable 40DK40 Cable P3 40DK25 Cable PS 3 5mm 2 5mm 3 5mm RCA Ext Spkr AGC 8591 12VDC RECEIVER Power d Supply Figure 4 2 Fixed Site Cabling 13 DDF6000 Figure 4 3 Mobile Installation Cabling 14 A D Mobile Antenna DDF6061 6062 or 6067 t J JC
28. ADS 5 5 D5 1 9 G T8 WADE 4 48 D MAS 8 7 256 WADT ye e W 3 9 CN 5m WA 5 TOAD 10 1024 WD M on 2048 woo 8 be 40 23 10 xS ing 2 21 ZNO WFO HE 2 WF2 2 L TISEOOB6L TONC DIA0 DIA1 DIM DIM DIAS DAG DIAT D A Data MAB 45 gt w o s ND v H PEND m V 1 VOUT8 H gt gt We VOUT6 gt LSB 00 VOUTS S Di VOUT 5 gt 02 VOUT3 gt 03 VOUT2 5 gt Vom gt 05 ws Li 06 veer 17 asp MB D7 DGND 0 7 gt unig 2 i 1 B A dg DR WOEN WRI WR MEM CSI ar ven e DDF6102 Waveform Generator 46 gt 1 16 1 16 VoU gt sb 10K DIP Iran lt om 015 N R um um 4 15 2 009 15 2 51 DIP 10K DIP Iran lt o 015 xm um 9 8 14 3 wee 14 10 51 DIP 10K DIP Iran 015 Wa DU 6 i um 7 8 4 4 8 5 vom nie 10K DIP Iran e 015 U113E 47 ECO BECH 13 14 5 12 5 1
29. ADS C456 lt RXDD awon ROD 1 1 cD 01 C460 TXDD AAA 6 6 DSR 01 RXDB RXC 2 pap 2 RXD 7 7 RTS TXDB B _ TC 3 3 5 TD 8 8 S CTS RXDC 4 4 DIR TXDC aS 9 9 oe RD 142 Antenna Switch ae 5 S 5 GND BEADS IREMI CENA Rin BEADS no mp Za Tip N L436 SS BEADS Shell E Ale 35mmSterio C445 C480 C485 C408 C493 NOTES C457 01 t 01 o o 01 01 6000 Omit 11 amp 12 DDF6114 EMC Filters amp Connectors 52 0 ANTENNAS DDF605X 8 ELEMENT ANTENNA COMMUTATOR ASSEMBLY CABLE TNC BNC 9 1 DDF6116 CABLE CONTROL FIXED SITE 2 00276118 0026117 ANTENNAS DDF606X 4 ELEMENT ANTENNA COMMUTATOR ASSEMBLY CABLE TNC BNC P2 4 amp DDF6116 CABLE CONTROL MOBILE 2 DDF6119 DDF6115 DDF605X and DDF606X Antenna Schematics 53 JA RF Sum RF In M Contro amp DSAGTTTBSCH Channel B JB d 2 O2 FF In Aw amp EC G OC Contro _ DSB6117B SCH Channel RF Sum FS RF in sw 2 Control DSC6TT7B SCH Channel D JD D Rsm 2 FF In sw Ee M 2007 Control _ 080611785 Channel E Er RFSum sw amp M
30. CIV bus e The display is housed in an attractive metal enclosure to enhance electromagnetic compatibility EMC The fixed site antennas are constructed of corrosion resistant materials and are designed for wind speeds up to 45 m s 100 mph 2 0 Specifications Performance specifications apply to a DDF6000D when connected to a fixed site antenna DDF6052 DDF6057 and a narrow band fm receiver such as the Icom R7000 R7100 or R8500 Frequency range Depends on antenna xx indicates cable length in feet Bearing display Bearing display rate Bearing accuracy 1 sigma DF sensitivity typical Bearing averaging selectable Antenna sweep rate RF attenuator selectable Audio input range Audio output S meter input range Serial interfaces Power requirement Current consumption Operating temperature display Dimensions display H x W x D Weight display 125 175 MHZ DDF6052 xx 175 250 MHZ DDF6053 xx 250 350 MHZ DDF6054 xx 350 500 MHZ DDF6055 xx 500 700 MHZ DDF6056 xx 700 1000 MHZ DDF6057 xx 16 LED circle and 3 digit LED display 2 Hz 2 degrees 130 dBm continuous signal 126 dBm pulsed signal 1 2 5 10 or 20 samples 300 600 1200 or 2400 Hz 0 or 20 dB 0 01 to 0 6 VRMS 0 5 watts maximum 10 to 10 VDC 2 RS232 ports 1 CIV port 11 to 14 VDC 1 2 amp 0 to 50 degrees C 108 x 171 x 235 mm 4 25 x 6 75 x 9 25 in 1 9 Kg 4 1 Ibs 3 0 Controls and Connectors Figure
31. COL 2 LED COL 3 LED COL 7 BANDPASS FILTER BANDPASS FILTER GAN 2 GAIN 2 COMPANDOR 0 5 Trot PINK BLU R13 mn GRN L T109 15 RED om R124 DIEN C168 R132 6125 158 255K U107A R131 3 7 115 499K U107B ns DELGAN 3 44 INV o T w u 8 15 400FCOM Pr 1 100FCOM x FP gt x5 THD TRIM 5 8 La 16 7 NT i si VD OUT R130 5 50 100 CL 0 2 0 9 SAB VD d RECTIN LSH VA m CR 5 8 8 Y s LE 6 Va wor amp L5 ress Cu L _ om zi LT 15 1 lt er E S LE 1 gt S DT Cu 100FCOM TOOFCOM R128 NES70 2 eu s DC 10K C124 Wa 7 5 9 1036 80 115 Wa Wa 8 7105 31357 gt A An DOIRA bd 2357 AUDIO D p 501 01040 SELFTST gt N E gt AAA D s 5621 NOTCH Q 8 2FCOM NOTCH Q 8 R1288 R150 R153 10K 100K 100K R151 R154 A C109 C194 mE C108 R103 U102 115 R149 DE 115 01038 115 25 5K 115 C106 4 3 fom 17 18 3 22005 INV INV Zi j 124 BP x BP M EXT SPKR gt SYCOM 9 ve ttt cx 1 1 zs ve L 1 51 R102 l
32. DDF6000D RADIO DIRECTION FINDER USER MANUAL 1 r1 Li D DOPPLER SYSTEMS INC PO Box 2780 37202 N Bloody Basin Rd Carefree Arizona 85377 Tel 480 488 9755 Fax 480 488 1295 Copyright 1995 2001 Doppler Systems Inc All rights reserved Issue 2001 01 Doppler Systems Inc European Union Declaration of Conformity C Industrial Equipment The EU Directives covered by this Declaration 89 336 Electromagnetic Compatibility Directive amended 92 31 amp 93 68 EEC The Product Covered by this Declaration Doppler DDF6000 Radio Direction Finder including Antenna Subsystem Models 6052 6053 6054 6055 6056 and 6057 Ser SSSS 8 5001 6000 The Basis which Conformity is being Declared The product identified above complies with the requirements of the above EU Directives by meeting the following standards EN 50081 2 1994 Electromagnetic Compatibility Generic Emission Standard Part 2 Industrial Environment EN55022 1995 Radiated Emissions Test in accordance with the limits specified in EN55022 1995 for Class B Devices and performed using the methods and procedures detailed in CISPR 22 1993 including Correction 1 Feb 1995 and Amendment 1 April 1995 using instrumentation equipment and facilities in conformance with the requirements of CISPR 16 1 1993 EN 50082 2 1995 Electromagnetic Compatibility Generic Immunity Standard Part 2 In
33. ET 3 0 AD0 2 8 Mar End E 6 i 8B 1 2 02 HE 1 9 L PEN E 6 si pue XL P351AD5 CNN NN TAHCT373 xg PM CN P3 6 AD6 a aor Y 3 pos x9 2 7 ve BOES 50 010 ADO lt 24218010 17 48 a ADI MATT BKT 15 48 A2 ADI MATZ x5 Big 013 MATS 23 2 2454013 2 46 ADU AD S P24T28ST 6 oe 14 MAIS S 25 PATIADIS S a x8 Je LS x BHEWRH L m s gt G RO gt 8 1 924804 L gt Z vec 00 2 DM gt vec o wP BT 2 L9 X Dt BOCTOEKETO u12 mo 0 MA 9 M Di 8 m 02 M 7 03 MM 76 M 5 D5 4 6 06 3 26 M8 5 o 21 M U138 Sien 1 26 21 vec v SDA Dra Care WR 2K Bytes EEPROM NSGZ286L VNC 15 32K Bytes RAM 04000 Ox7FFF DDF6102 Processor 44 DEV Dc 1 ADO ADI AD2 AD3 04 ADS AD6 ADT lt 0125 2 LB D BY B 1 DZ das 8 DGND 610 7 S E 05 5 cs 06 Am 5 OE D7 EE DR 245
34. J9 is the antenna switch output Used with DDF6071 two antenna switch unit to select VHF or UHF antennas or with the DDF6076 three antenna switch to select VHF UHF1 or UHF2 antennas Note that this is a 3 5 mm stereo jack When used with the DDF6071 use the 3 5 mm mono cable provided with the switch and when used with the DDF6076 use the 3 5 mm stereo cable provided with it A23 J10 is the auxiliary input Reserved for future expansion LI L I LI Figure 3 1 Front Panel Controls S Aw 1185232 NU RS232 N CN N 15 2 EXT J8 N INPUT SPKR RF SUMMER 7 e 12 VDC Beie 1 AMP Figure 3 2 Rear Panel Connectors 4 0 Installation 4 1 Fixed site selection For maximum range you will want to select a fixed site location that has a high elevation and a clear line of sight to the area you intend to direction find in Unfortunately broadcast and other transmitters already occupy many such sites and these must be avoided as the direction finder is very broad banded Before expending any great effort installing the direction finder at any fixed site try it out first The input preamplifiers used in the summing electronics can be damaged if exposed to more that a few hundred mill watts of RF power Normally this is not a problem but you should not locate the DF antenna very close to a transmitt
35. P1 Utt om om op C108 d d 1 1 1 4 1 4 4 4 4 4 4 1 1 1 246 mm mi m wer 1025 Y P3 08 DE oe op om DEL Lx H d THOTRM 9 4 4 4 4 4 5 1 1 4 1 4 4 a 4 Un 082 025 Hx ERE RECT CAP H x NESTO DDF6102 Decoupling Capacitors 50 0302 X301 MTP15NOSE VN 2 C AE SAW R316 MTP15N05E coos CH 5 1 0301 R310 10K R313 R317 Ka my 4 10K VPWR 0303 4 14148 s 8 081 052 2 le e LI C310 R304 4 5 E Du 10k GND DK 320 L R315 d 1025 ONOFF R318 10K 1 C315 C322 on 47005 470254 Low ESR Low ESR GEN En 4 i 4 1 MIX E Low ESR E 2 R312 zl phe abs o 5 E a xs E 0305 A 20 ONOFF ua Se EN VPWR 2 0302 d 4900 2d v H VW om vsw H 4 GND FB TARN R314
36. Test Software 7 1 Introduction The DDF6000D includes a CD or disk set containing the Bearing Track software and two utility programs that can be used to operate the direction finder using a PC These programs called RDFCMD and TERM run under DOS The programs can be installed using the installation CD Execute the programs by selecting them from the Bearing Track item under the Programs menu in the Start menu 7 2 RDFCMD This is menu driven program that provides access to all DDF6000D serial commands Connect DF port 0 J1 to a free PC COM port using a straight through cable that contains at least RXD TXD and GRD lines See figure 6 3 or 6 4 Run RDFCMD and supply the communications parameters requested The protocol can be either ASCII or CIV but it must match the DF Remember that all commands except the bearing data request and the CAL ON command must be preceded by the CAL ON command From the MAIN menu enter 0 to request the bearing data The program will display the command as sent the response as received and the decoded bearing data bearing in degrees S meter and validity character see sections 6 4 1 or 6 4 2 Enter command 1 to go to the front panel menu Enter 15 to turn the CAL light ON Then enter 1 to change the number of averages to 1 To return the number of averages to 2 enter command 15 followed by command 2 lt ESC gt returns to the Main menu Other menus are available to change the DF port 2 communic
37. an European Representative for Doppler Systems Inc Signature ites ta PO Box 2 Seaton Devon Eed EX12 2YS ENGLAND Date Telephone Fax 1297 62 56 90 Attention The attention of the specifier purchaser installer or user is drawn to special measures and limitation to use which must be observed when product is taken into service to maintain compliance with the above directives Details of these special measures and limitations are in the product manual ii Warranty Information Doppler Systems Inc will repair or replace at their option any parts found to be defective in either materials or workmanship for a period of one year from the date of shipping Defective parts must be returned for replacement In the US contact the factory or overseas your local distributor for advice about returning any defective parts or equipment Ifa defective part or design error causes your radio direction finder to operate improperly during the one year warranty period Doppler Systems Inc will service it free of charge if returned at owner s expense If improper operation is due to an error on the part of the purchaser there will be a repair charge Doppler Systems Inc are not responsible for damage caused by the use of improper tools or solder failure to follow the printed instructions misuse or abuse unauthorized modifications misapplication of the unit theft fire or accidents This warranty applies only to the eq
38. ations parameters to match a particular receiver and to command frequency changes to the receiver You issue a command from another menu to the direction finder you will first have to go to the front panel menu and turn the CAL light ON hit lt ESC gt to get to the Main menu then go to the menu required for the other command This program can be used when the PC and direction finder port 0 are connected via a radio modem set RDFCMD can also be used to test port 1 J4 using an RS232 to CIV converter ICOM CT17 or to test port 2 J2 using a null modem cable 7 3 TERM This is a simple terminal program that can be used to check out the communications if you have a problem establishing a connection using RDFCMD Because TERM obtains its commands directly 35 from the keyboard only ASCII commands can be entered Be sure that DF connector J4 is unplugged and recycle the power to the DF before using the program Type the command 15 lt Enter gt followed by 1 lt Enter gt to change the number of averages to 1 15 lt Enter gt followed by 2 lt Enter gt to change it back to 2 etc The program will display the command as sent and the response as received The response should be This program can also be used on DF port 2 J2 if a null modem is placed between the PC and DF port The baud rate data bits and stop bits must match those of port 2 Program TERM cannot be used if the DF is configured for CIV protoco
39. connected to each remote DDF6000D via Port 1 J4 Each DDF6000D and ICOM receiver must have different CIV addresses Note that CIV protocol must be used when a radio modem provides remote operation Ifa particular site does not use a CIV receiver a spare Switchcraft type 750 plug must be inserted into the DDF6000D J4 to cause the DF to operate with CIV protocol Of course no remote control of the receiver is provided with this connection Figure 6 7 shows a typical arrangement including the wiring needed to connect with the Young Design Inc YDI radio modems We recommend their model 24R or 24CM radio modem These units should be operated in the Data Activation Mode with the End of Transmission EOT character set for hex FD Be sure to set the baud rate to 2400 the data bits to 8 no parity and 1 stop bit using the setup software provided with the radio modems We have found that a Transmitter Buffer Delay of 50 milliseconds and receiving carrier detect to data delay of 10 milliseconds works well The anti streaming timer can be set to 1 second Contact Young Design Inc 103 Rowell Court Falls Church VA 22046 Tel 703 237 9090 Fax 703 237 9092 http www ydi com 6 6 7 Modem Setup Please see the application notes on our web site www dopsys com for the settings used with other modems both radio and telephone line 6 6 8 Command Interlock Beginning with firmware version 4 04 all serial commands except for commands 0 15 and 16 r
40. dustrial Environment IEC 801 2 1991 Electrostatic Discharge ESD Immunity Test performed in accordance with the instrumentation equipment facilities limits i e Criteria B methods and procedures specified therein i e 8 kV Air Discharge Level 3 and at all Lower Levels and 4 kV Contact Discharge Level 3 and at all Lower Levels ENV 50140 1994 Radio frequency Electromagnetic Fields Immunity Test performed in accordance with the instrumentation equipment facilities methods procedures and limits specified therein i e 3 V m with 80 AM Modulation at a 400 Hz rate at both H and V Polarization over the frquency range 80 MHz to 1000 MHz Criteria A 801 4 1988 Electrical Fast Transients EFT Test in accordance with the instrumentation equipment facilities methods procedures and limits Criteria B specified therein i e Direct Injection of 1 kV EFT on DC Input Ports and Capacitive Clamp Injection of 1 EFT on long i c gt 3 meters Non process Control Lines and Capacitive Clamp Injection of 1 kV EFT on Process Measurement and Control Lines ENV 50141 1994 Radio frequency Common Mode Immunity Test performed in accordance with the instrumentation equipment facilities methods procedures and limits specified therein i e 3 Vrms with 8096 AM Modulation at a 400 Hz rate over the frequency range 150 kHz to 80 MEZ Criteria A prETS 300 339 1993 Radio Equipmen
41. equire that the CAL flag be first enabled This interlocking feature was added to reduce the probability of a parameter being changed due to a bit error on the serial input As an example to change the number of averages to 1 first send command 15 cal flag ON and then send command 1 set number of averages 1 The direction finder will automatically turn the cal flag OFF after receiving the second command 25 Table 6 1 DDF6000D Serial Command List All serial commands except for commands 0 15 and 16 require that the CAL flag be first enabled Command Number Description of Command Default values shown in bold Number of averages 1 Number of averages Number of averages 5 4 Number of averages 10 5 Number of averages 20 21 Sweep rate 0 Sweep rate 300 hk o Sweep rate 600 7 Sweep rate 1200 Sweep rate 2400 Attenuator ON 12 Attenuator OFF DF mode PULSE BI DF mode CONTINUOUS 5 ______ Calfag ON Cal OFF Cal bearing to zero Cal S meter to zero S meter to nine Intensity BRIGHT Intensity DIM Port1 amp 2 baud rate 1200 Port1 amp 2 baud rate 2400 Port1 amp 2 baud rate 4800 Port1 amp 2 baud rate 9600 ______________ 26 Port1 amp 2 data bits 7 Port182 data bits 8 Port1 amp 2 stop bits 1 2 ko S parity NONE Port1 amp 2 parity EVEN Port1 amp 2 parity ODD 33 239 Calibrate the bearing to the value given by the command number 33 Fo
42. er especially one in the same frequency band as the DF antenna If you plan to link the DF to another location using a data radio you should select a data radio in a frequency band different from that of the direction finder Position the data radio antenna for minimum coupling to the direction finder antenna 4 2 Fixed site installation The 6000 fixed site direction finder antennas are designed for mast mounting Your DF antenna should be mounted on the top of the mast and should be clear of other metal objects antennas etc A side arm mount on a tower would be a very poor choice for mounting the antenna Assemble the antenna as shown in the following figures 6052 3 6052 1 When installing the antenna elements 17 and 6 note that the upper elements are white and have a 1 4 20 thread and the lower elements are black and are threaded 5 16 24 An anti oxide lubricant has been applied to the internal threads of these elements which must not be removed Also note that an O ring 2 and 5 is provided with each antenna element Verify that these O rings are still in place before installing the elements Tighten each of the elements by hand so that the O rings are compressed about 1 4 turn after they make contact Remove the lockwashers and nuts 10 and 11 from the mounting studs 9 then attach the mast 12 to the hub using the same hardware The assembled antenna is shown in Figure 4 1
43. hanged to 2 by serial commands 19 6 2 3 Connector J4 port 1 Connector 74 is a 3 5 mm jack connected for CIV bus operation Transmit and receive voltage levels are TTL The output is pulled up to 5 VDC through a 5 1 K resistor The default baud rate is 1200 with 8 data bits no parity and 1 stop bit The baud rate may be changed to 2400 4800 baud or 9600 parity may be changed to even or odd the number of data bits can be changed to 7 and the stop bit length can be changed to 2 by serial commands 6 3 Message Protocol 6 3 1 ASCII Protocol ASCII messages may contain any string of standard 7 bit ASCII characters hex 00 through 7F A CR hex 0D character terminates the string 80 characters including the lt gt is the maximum length of the string Line feed characters hex 0A are ignored 6 3 2 CIV Protocol CIV message format is PR PR RA TA CN SC DT SF where PR is the preamble hex FE RA is the receive address TA is the transmitter address CN is the command number SC is the optional subcommand DT is the data and may be several characters in length and SF is the message suffix hex FD 80 characters is the maximum length of a CIV message including prefixes and suffix Received messages are buffered and if a jamming character hex FC is detected anywhere within the message the message is ignored Also the received message must begin with at least two prefix characters or it will be ignored 6
44. he baud rate number of data bits and number of stop bits at port 2 must match those of the receiver but these parameters can be different from those used on port 0 Figure 6 3 shows the wiring ASCII protocol is used on both ports 0 and 2 6 6 3 PC connected to port 0 J1 CIV protocol Figure 6 4 shows the wiring Note that the plug at J4 must be inserted before turning the DDF6000D on This setup may be used with the BrgTrack program described in section 7 0 6 6 4 PC connected to port 0 J1 ICOM receiver connected to port 1 J4 A PC can be connected to port 0 and a CIV device such as an ICOM receiver connected to port 1 The baud rate number of data bits and number of stop bits at port 1 must match those of the receiver but these parameters can be different from those used on port 0 Figure 6 5 shows the wiring for this setup The CIV cable connectors must be Switchcraft type 750 plugs such as those provided with the DDF6000D These connectors are slightly larger than the 3 5 mm connectors provided with ICOM equipment They are compatible with ICOM jacks but the ICOM plugs are not compatible with those used on the DDF6000D For dimensional details see section 4 4 This configuration causes CIV protocol to be used at both ports 0 and 1 Commands from the PC to the DDF6000D are sent on port 0 using the CIV message format to default address 01 from address hex Messages from the DDF6000D to the PC are similarly
45. ill increment degree but 15 if the switch is held in the bearing will increment in steps of 10 degrees Hold the switch down until the bearing is close to the desired value and then pulse it in the remaining steps The direction of rotation reverses every 0 5 second This feature allows nonlinearities in the receiver to be compensated by averaging consecutive bearing readings If the number of averages is selected to be 1 the individual bearing data will be displayed and if the system needs calibration the readings will alternate between two different values Be sure to recalibrate the unit if you see this occurring Normally you should operate the direction finder with 2 or more averages selected in order to obtain the benefits of the clockwise counterclockwise rotation If the S meter is not connected to the receiver or if it has not been calibrated the S meter will display a dash To calibrate the S meter the CAL switch must first be enabled then the SIG 9 switch pressed when a strong signal is present and the SIG 0 switch when no signal is present 5 3 Direction finding in the continuous mode Switch to the continuous mode Pulse mode OFF The simulated rotation of the antenna by the direction finder produces a tone in the receiver s audio output which you will not normally hear because it is filtered out in the direction finder before it is passed to its speaker you can hear it if you wish by removing the audio plug from the
46. l 7 4 Triangulation Software The above software programs are intended to permit simple remote control operation of the direction finder and testing of the two serial ports Full control of a network of one or more direction finders with automatic triangulation and map display is available with the program Bearing Track See the separate manual which comes with the Bearing Track program 36 8 0 Servicing 8 1 Schematics A complete set of schematics is provided at the end of this section as an aid to troubleshooting and to clarify interfaces Because the DDF6000D is a microprocessor based system that uses high density surface mount technology in the RF summer antenna it is recommended that the unit be returned to the factory for repair The only exception 15 for upgrading of the program EPROM that is described below The circuitry used in the DDF6000D is susceptible to electrostatic discharge Observe proper ESD precautions when servicing the unit Overseas customers should refer to the relevant Doppler Distributor 8 2 EPROM replacement Remove the top cover by removing the 23 black 4 40 screws on the top sides and back of the unit Tip the top cover up and disconnect the speaker leads so the cover can be removed completely Replace the EPROM U123 using proper IC removal and insertion tools and observe electrostatic discharge precautions Reconnect the speaker leads and replace the top cover using the black 4 40 screws 37
47. oaxes used have the same length Doppler Systems antennas DDF6061 6062 and 6068 all use the same magnetic mount base and cover the frequency ranges 88 136 136 500 and 52 88 MHZ respectively Cut the whips to resonance using the chart provided with the antennas and space them between 1 8 and 1 4 wavelength apart on the car roof To avoid damage to the input circuitry used in the RF summer touch the antenna ground plane before attaching the whips to the magnetic mounts It is important that the vehicle provides at least 1 4 wavelength of ground plane outboard of the antennas It is a good idea to remove any other antenna from the car when using the direction finder to avoid its affecting the response pattern ofthe antenna If you need to use another antenna try experimenting with its location to minimize the coupling with the DF antenna Do not transmit more than a few watts in the immediate vicinity ofthe DF antenna especially if the transmit frequency is in the same frequency range as that of the DF antenna It is possible to damage the RF summer if more that a few hundred milliwatts of RF power are induced into its input Place the RF summer DDF6060 on the car with the cables oriented towards the rear of the car Connect the magnetic mount antenna cables to the corresponding TNC connectors on the RF summer That is the left front antenna to the left front connector etc Locate the summer near the back of the car the lid of the trunk or b
48. olume to be adjusted without affecting the bearing and the receiver squelch can be set normally or left open Maximum sensitivity is obtained with the receiver unsquelched Consecutive bearings may be averaged The number of samples averaged may be selected to be 1 2 5 10 or 20 Unlike the continuous mode the antenna sweep direction is not reversed in the PULSE mode because consecutive pulses may not be coming from the same transmitter 17 5 5 Homing When the direction finder is used to home on a signal source the following guidelines should be followed Take an assistant with you Don t try to read the display and drive at the same time Try to keep out of high multipath areas buildings etc as long as possible Avoid strong interfering signal locations broadcast stations etc Keep moving when the signal is present Multipath averages out spatially not temporally 18 6 0 Remote Control 6 1 Introduction Serial communication ports are provided at two of the rear panel connectors chosen from the three available Port 0 is connected at J1 port 1 is connected to J4 and port 2 to J2 On power turn on the DDF6000D determines whether a plug has been inserted into the 3 5 mm jack J4 and if it has the system operates using CIV protocol at port 0 J1 and port 1 J4 The DE9P connector at J2 port 2 is not used in this mode If during power turn on a plug was not inserted into J4 then both port 0 at J1 and port 2
49. oot so that the magnetic mount antenna cables do not have excessive slack Secure the four antenna cables together with nylon ties so that they are not free to move around and touch the antenna elements Route the control and RF cables through an open window to the direction finder and receiver For mobile operation in the 700 1000 MHZ band antenna DDF5067 should be mounted directly on top of the RF summer This antenna provides an extended ground plane a wind shroud and four stub type antennas built into TNC connectors Place the assembled RF summer antenna in the center of the car roof Connect the receiver audio output to the DF audio input J3 using the supplied 40DK40 cable and connect the S meter output to 75 with cable 40DK25 The DF power is supplied to J7 from the cigar lighter using cable DDF6110 If you want to power the receiver from the same outlet use a Y adapter Wiring of the mobile DF is shown in figure 4 3 10 4 4 Phone jacks The phone jacks used on the DDF6000D are Switchcraft Tini Jax connectors These are commonly referred to as 3 5 mm connectors but they actually measure 3 58 mm 0 141 inch diameter Other 3 5 mm connectors such as are used on ICOM receivers measure closer to 3 50 mm 0 138 inch diameter For reliable operation mating plugs must be Switchcraft Type 750 which are supplied with the DDF6000D These plugs normally mate with the 3 5 mm jacks used on the ICOM receivers but the ICOM 3 5 mm pl
50. r S 2 8 ERE 2 SHIELD Note Cable end connectors shown Figure 6 2 Local DF in ASCII Mode 29 OR j GND 00 6000 RECEIVER 5 GND 5 GND 5 9 9 9 A 4 4 18 8 8 RXD 3 3 mp 3 PE gt 7 TXD 2 RD 9 2 271129 6 Ei 6 6 o 1 1 1 SHIELD SHIELD Note Cable end connectors Shown Figure 6 3 Local DF with ASCII Receiver 30 ADDR 13 25 12 24 11 23 10 22 9 21 8 20 7 19 6 18 PC 0 OR GND 5 GND 5 9 9 4 4 8 8 O 2513 TXD 3 FX SOMIT 7 on SR RXD 2 9 lt 6 1 SHIELD eee 95 DE9P Note Cable end connectors shown Default CIV addresses shown Figure 6 4 Local DF in CIV Mode 31 DDF6000 ADDR 01 GND RXD TXD OR 0 6000 i R8500 i ADDR lt 01 ADDR 4A hex P I 5 GND 5 gt I plied 9 B 7794 4 4 Remote S 8 s 974 TxD 3 S PASE gt 7 SCH GND 4 e 2 2 m OTs 6 E 3 5mm 3 5mm 1 gt d SHIELD ez DE9S DE9P Note Cable end connectors shown Default addresses shown Figure 6 5 Local Site with CIV Receiver
51. r example command 33 calibrates the bearing to 0 degree 240 through 255 These commands are not allowed because of conflicts with the CIV control characters 256 through 408 Calibrate the bearing to the value given by the command number 49 For example command 256 calibrates the bearing to 207 degrees 409 through 495 Not defined 496 through 511 These commands are not allowed because of conflicts with the CIV control characters 512 through 670 Set the address of the DDF6000 used for CIV communications to the value of the command 511 For example command 512 sets the address to 1 671 through 751 Not defined 752 through 767 These commands are not allowed because of conflicts with the CIV control characters 768 through 899 Not defined 900 through 920 Set the signal to noise ratio threshold used in the continuous mode to the value given by the command number 900 10 For example command 912 sets the threshold to 1 2 27 Bi a C 28 DDF6000 a GND 5 C GND 3 8 TD 3 9 TXD 7 2 RXD 6 Dos NOTE Panel mount connectors shown RS232 Signal names are DTE LB 17 Q 16 3 RXD 15 2 TXD 14 DB25S Figure 6 1 DDF6000 Serial Interfaces 75 GND 9 OR _ 3 TD O
52. r which you must of course use a wide band 150 KHz bandwidth receiver 16 The front panel display updates twice every second Bearings are retained for 10 seconds and then the display is blanked To distinguish an updated bearing from a retained bearing of the same value the decimal point on the display alternates ON and OFF whenever the display is updated If the number of averages is set to 1 then the bearing display is that calculated by the software during the preceding 0 5 second interval The processor can also calculate a moving average of the preceding bearings This will cause the bearing angle to be more stable but it will also be less responsive to actual changes in the bearing As discussed in Section 5 2 the antenna sweep direction is reversed every 0 5 seconds to permit reduction of errors due to nonlinearities in the receiver While the direction finder can be used with the number of averages set to 1 it is usually best to set it to 2 or higher to obtain the benefits of averaging opposite direction sweeps The preamplifiers used in the direction finder antenna electronics have a gain of about 13 dB anda noise figure of about 3 6 dB These are very broadband devices which can generate intermod products if very strong input signals are present Depending on the location of the antenna and the frequency band being used you may notice an increase in the noise level of the receiver that is due to mixing of two strong input signal
53. receiver s external speaker output The DF measures the magnitude and the phase of the tone every 10 milliseconds and calculates bearing angle from this data every second The DF software determines whether a signal is present by examining the statistics of the sweep frequency data If the average amplitude of the tone exceeds the variation of the data about the average then it is concluded that a signal is present and the bearing is displayed This scheme makes the system independent of the receiver s volume control setting so the volume may be set at any comfortable level In addition the receiver s squelch can be set normally or it can be opened so that the receiver is unsquelched Ifno signal is present the DF will detect this condition from the lack of a stable sweep tone and will not update the display The sweep rate can be adjusted set to 300 600 1200 or 2400 Hz from the front panel Maximum sensitivity and stability is obtained at the higher sweep rates but there may be occasions when a lower sweep rate is desired For example if the signal itself contains a 1200 Hz tone you would want to use a sweep rate other than 1200 Hz A sweep rate of 2400 Hz results in a peak deviation that exceeds the bandwidth of most narrow band fm receivers You will notice distortion of the transmitted audio with this sweep rate when receiving with a narrow band fm receiver This sweep rate is useful however if you need to DF a wide band fm signal fo
54. ress is 01 The characters P X Y and Z are ASCII X Y and Z are integers that are decoded as indicated in the tables given in the preceding section 6 4 1 to determine the panel settings 6 5 Non DDF6000D messages 6 5 1 ASCII Protocol Non DDF6000D messages may be received on port 0 J1 or port 2 J2 These are any ASCII messages in which the first character is not 5 Such messages are not acknowledged but are retransmitted on the opposite serial port from the one they are received on That is port 0 received messages are sent to port 2 and port 2 received messages are sent on port 0 6 5 2 CIV Protocol Non DDF6000D messages may be received on port 0 J1 or port 1 J4 These are any valid CIV messages not addressed to the DDF6000D Such messages are not acknowledged but are retransmitted on the opposite serial port from the one they are received on That is port 0 received messages are sent to port 1 and port 1 received messages are sent on port 0 6 6 Typical Operation 6 6 1 PC connected directly to port 0 J1 ASCII protocol Figure 6 2 shows the wiring Note that this arrangement can be used when running the utility programs TERM or RDFCMD but not BrgTrack see description of software in section 7 0 23 6 6 2 PC connected to port 0 J1 RS232 receiver connected to port 2 J2 can be connected to port 0 and a receiver having 5232 interface such as the AOR series connected at port 2 J2 T
55. s Sweep rate 0 CAL enabled 0 The default parameters are listed in Table 6 1 Note however that the bearing calibration values will also be returned to the factory default values and a recalibration will probably be necessary 5 2 Calibration The bearing angle and the S meter display are easily calibrated from the front panel If you are using the direction finder in a car or boat calibrate the bearing display so it reads 0 degrees when receiving a signal from straight ahead To perform this calibration use a strong steady signal such as a repeater output NOAA weather station etc Be sure the vehicle is in an area free of reflections with a clear line of sight to the known transmitter Select the CAL mode by pressing the CAL switch The CAL light will remain ON Then press the BRG 0 switch and the bearing should read 0 degrees Repeat this procedure for sweep rates of 300 600 1200 and 2400 Hz Do not try to calibrate the bearing to 0 with the sweep rate set for 0 this is a special command that is used to restore the factory default parameter settings see above If you are using the direction finder at a fixed location use the following alternate procedure to calibrate the bearing Tune in a known transmission and determine the bearing from the direction finder site using a map Increment the bearing angle by pressing the BRG 0 switch without first enabling the CAL switch Each time the switch is pressed the bearing w
56. s for example a broadcast fm station and a television video or audio signal Enabling the attenuator switch on the direction finder that applies attenuation of 20 dB between each antenna element and its associated preamplifier can reduce the intermod 5 4 Direction finding in the pulse mode The pulse mode logic has been optimized for pulse duration of 150 milliseconds and a period of 0 5 second The type of transmitter or beacon used for target tracking frequently generates this type of pulse It is possible to change the pulse duration and period to other commonly used values as described in Section 6 4 Enter the pulse mode by pressing the Pulse Mode switch As in the continuous mode the processor again samples the sweep frequency data every 10 milliseconds and calculates the bearing angle each 0 5 second To determine whether a signal pulse was present during the 0 5 second interval a correlation calculation is made The amplitude of the tone is calculated over every 150 millisecond subinterval and the subinterval with the highest value is noted The amplitude is then calculated over the 350 millisecond interval that does not include the selected 150 milliseconds two averages are then compared and if a criterion is exceeded it is concluded that a pulse occurred during the display interval The bearing angle is then calculated from the phase of the tone data in the selected 150 millisecond interval This method permits the receiver v
57. sent on port 0 using CIV format to hex from default address hex 01 Valid DDF6000D commands are acknowledged with the ICOM OK message hex code FB Invalid messages are acknowledged with the ICOM No Good message hex FA Commands from the PC to a CIV receiver are sent on port 0 in CIV format Such messages should be addressed to the receiver and not the DDF6000D These commands are then re sent by the DDF6000D on port 1 Messages from the receiver to the PC such as OK or NG are sent to the DDF6000D in CIV format on port 1 and then re sent over port 0 to the PC Such messages should be addressed to the PC hex E0 and not to the DDF6000D default hex 01 6 6 5 Two DDF6000Ds with Icom Receivers Connected to PC Using Serial Data Expander When a wired connection to the remote DF site is required using for example telephone line modems the Serial Data Expander DDF6077 may be used This device must be used in the CIV mode where only one device at a time is ever transmitting Figure 6 6 shows the wiring Fewer 24 direction finder sites may be used with the DDF6077 or multiple DDF6077 s may be daisy chained if more than three DFs are to be connected Each DF and Icom receiver must have a unique CIV address 6 6 6 Two DDF6000Ds with Icom Receivers Connected to PC Using Radio Modems The PC connects to a radio modem at the control site and port 0 of each DDF6000D is connected to aradio modem at the remote location ICOM receivers are
58. t L INT SPKR R108 E L 10K K 9 ve 1 386 LSH VA Wa Wa Wa R101 de lt 27 2 122 Bee 10K SZ a R123 HE t 1025V Vh DDF6102 Audio Processing 42 GATE GAIN 4 00 C135 GAN 4 TAU 4MS o R106 R117 S mm THE GATE 025 m 16 255K S B R16 34K U108A DE e 06212 DEM AUD gt 42 x i IN R127 U1088 I D S 1 DEM SIN 1 T DG212 499K 5 x R118 LF347 R119 Iran 34K R139 39K 1107 RED GATE NZ d d R104 R15 DCD gt b IET 4 GATE 0225 HG R136 255K IN Wa 0621 l 8 5 01080 01390 ax 06212 8 8 dese A WE N ML SE 4 5 8 DEM COS LFMT Le Iran R125 ia 39K N R aq 1040H 00 71 2 ue 3 2 ADMO Di 4 RE Ge
59. t and Systems RES Generic Electro Magnetic Compatibility EMC for radio equipment 55022 1995 DC Conducted Emissions Test in accordance with the limits specified in prETS 300 339 1993 and 55022 1995 for Class Devices and performed using methods and procedures detailed in CISPR 22 1993 including Correction 1 Feb 1995 and Amendment 1 April 1995 using instrumentation equipment and facilities in conformance with the requirements of CISPR 16 1 1993 prETS 300 339 1993 DC Voltage Variation Immunity Test Clause 9 5 in accordance with the instrumentation equipment facilities methods procedures and limits Criteria B specified therein operate through under conditions of 10 voltage variation in the DC input power prETS 300 339 1993 DC Transients and Surges Immunitiy Test Clause 9 6 in accordance with the instrumentation equipment facilities methods procedures and limits Criteria B specified in ISO 7637 1 1990 i e operate through ISO 7637 1 1990 Test Pulse 1 Test Pulse 2 Test Pulse 3a Test Pulse 3b Test Pulse 4 and Test Pulse 7 each as modified by prETS 300 339 1993 Clause 9 6 The technical documentation required to demonstrate that this product meets the requirements of the EMC Directive has been compiled by the signatory below and is available for inspection by the relevant enforcement authorities The CE mark was first applied in 1996 Authority Denis Eg
60. th L in ft 2 PIC SHIELD DRAIN 1 1 20 BLACK gt PURPLE 24 GRAY 5 2 RED 24 RED 10 GRAY 24 ORANGEWHITE S GREEN 24 GREEN WHITE 5 ecl BLUE WHITE 20 GREEN 9214 WHITE 24 WHITE i Pa ORANGE WHITE 24 BLUE WHITE 5 BROWN 24 BROWN PON GREEN WHITE 24 BLUE e BLUE 24 PURPLE b oc M BROWN WHITE 24 YELLOW 15 ORANGE 20 12 PEE GRAYMHITE 20 BROWNIWHITE 5 TIS ORANGE 15 SHIELD BRAID e YELLOW 24 i DA15P 185 DDF6118 Fixed Site Control Cable 59 P2 TNC BNC CRIMP PLUG RFB 1106 2 RG58 DS COAX PART NUMBER CABLE LENGTH DDF6116 12 3 6 M 12 FT DDF6116 25 7 6 M 25 FT DDF6116 50 15 2 M 50 FT DDF6116 75 22 9 M 75 FT DDF6116 100 30 5 M 100 FT DDF6116 Coax Cable 60 TNC CRIMP PLUG RFT 1202 2
61. tion of the RF input to the commutation electronics 14 is an RS232 serial interface configured as DCE May be connected directly to PC using a 9 pin male to 9 pin female straight through cable See section 6 2 1 for details of this interface 15 72 is an RS232 serial interface configured as DTE May be connected to a PC via a null modem or to a receiver having an RS232 input See section 6 2 2 for details of this interface A 16 J3 is the receiver audio input Connect to the external speaker output of your receiver using the supplied 3 5 mm to 3 5 mm cable or make a custom cable using the supplied 3 5 mm plug 17 CIV interface be connected to the CIV remote control interface on your receiver using the supplied 3 5 mm to 3 5 mm cable See section 6 2 3 for details of this interface 18 75 is the S meter input Connect to the receiver s S meter output using the supplied 3 5 mm to RCA phono jack cable or make a custom cable using the supplied 3 5 mm plug 19 J6 is the external speaker output May be connected to an external speaker not supplied using a 3 5 mm plug A20 J7 is the DC power input Connect to 12 VDC using the supplied 2 5mm to cigar plug cable or on North American models from the supplied 110 VAC power supply A21 J8 is the antenna control cable output Connect to the 15 pin cable supplied with the 6000 series fixed site antennas or the RF summer DDF6060 used for mobile operation A22
62. ugs do not reliably mate with the Switchcraft Tini Jax connectors used in the DDF6000D Cables 40DK40 3 5 mm to 3 5 mm and 40DK25 3 5 mm to RCA plug are built with the Switchcraft 750 style plug Occasionally 3 5 mm jack may be encountered that will not accept the Switchcraft 750 plug If this occurs you can either replace the Switchcraft plug with a 3 5 mm plug or modify the Switchcraft plug by lightly sanding the tip to reduce its outside diameter 4 5 ICOM R7000 Receiver The ICOM R7000 can easily be modified to provide an S meter output for the DDF6000D Remove the top cover and locate the Main Unit PWB on the left side of the receiver and the spare RCA phono jack J7 on the rear panel Solder a 5 1 K resistor to the center pin of J7 and solder an insulated wire to the other end of the resistor Route the wire to the topside of the Main Unit and carefully solder the other end of the wire to pin 1 of IC4 IC4 is an 8 pin DIP op amplifier type NMJ4558D Solder the wire directly to the IC lead using a minimum amount of heat and a very small tip iron 4 5 R7100 and R8500 Receivers On the ICOM R7100 or R8500 you can connect the S meter input directly to the AGC output jack Note that the AGC jack on the R8500 receiver is used for two functions Normally it provides an AGC output that is compatible with the DDF6000 however it can also be used for a discriminator output by changing a jumper inside the receiver Refer to the R
63. uipment sold by Doppler Systems Inc and does not cover incidental or consequential damages Doppler Systems radio direction finding equipment is designed to for locating interfering radio signals It is not intended for use as a navigation aid and in particular it is not to be used for aircraft or marine navigation Accessories Included 1 User manual 1 12 VDC 1 5 amps 110 VAC wall mount power supply North American models 1 DC power cable DDF6110 automobile cigarette lighter plug to 2 5mm plug 2 3 5 mm phone jack to 3 5 mm phone jack cable 40DK40 1 3 5 mm phone jack to RCA phono jack cable 40DK25 2 3 5 mm phone jack 750 1 Software manual 1 Set of software CD or floppy disks Hi Table of Contents Warranty oed ri ek iii Accessories EE iii e iv all ae 1 2 0 2 3 0 Controls and e e OVER UN etus aee eee dua ges sees oS lau 3 4 0 Installation 7 4 Eixed Site seleetlOD ecu cas Nuu 7 4 2 Fixed cite installation o ess Rau m u D Uaioe ail 7 43 eler EE 10 44 Phone Greed e ex patte pd eae e etu vadant des 11 4 5 1CON R7000 45 De
Download Pdf Manuals
Related Search