取扱説明書 - Naucom
Contents
1. ae LT lt SSB Voice 0 Modulation 4 50Q 100V DU 50 CN 801 HP V G GII 1 e e o 2 3 36 6 D ss2. ON OFF CE Type LG type GH type 2200 2450MHz 50Q PEP CROSS NEEDLE CN 801 seres J ce SWITCH DC 13 8V FREQUENCY oco amur Theight TYPE 1 8 200MH2 REP TYPE 140 525MHz G TYPE so isoowz L DAIWA industry co Itd CROSS MEEDLE SWR amp POWER O SWR amp POWER METER O METER SWR 1 TR 50Q ANT 50Q 1 50Q 2 FM SELECTOR AVG AM PEP HP Ty
3. SWR1 5 HPS 47 DC13 8V 2 10W 0 4W 96W GE SWR E 1 2 Carrier Average MODULATION MODE Power Power w ANT AM FM CARRIER AMAMA 100V E 100 AM Single Tone 200V 100 modulation gt lt gt 7 150 3 SSB Single Tone NV 100V Modulation f 100
4. 19 0082 TE03 3795 845 ft FAX 09 3755 2253 TEL 03 3755 5913 FAX 03 3755 2253 No 200804 m DAIWA INSTRUCTION MANUAL W CROSS NEEDLE SWR amp POWER METER D C CN 8 O 1 Series HP vee V rve G TYPE TYPE The CN 801 Series is high quality Instrument with unique features which make tedious mea surement of SWR and Power during antenna tests matching and tuning of transmitters a very easy task SWR and Power indicators are installed in one meter unit One scale will indicate Forward Power Another scale Reflected Power and SWR is indicated at the crossing point of the 2 needles This unique feature makes it possible to read Forward Power Reflected Power and SWR all at the same time Type can also measure P E P Peak Power in SSB operation E SPECIFICATIONS Type Type LG type GI Type Frequency 1 8 200 MHz 140 525 MHz 900 1300MHz 2200 2450MHz Power range Forward 20 200 2KW 20 200W 2 20W 0 2 2W Tolerance 10 at full scale SWR measurement 1 1 1 0 SWR detection sensitivity 5W min 0 4W Input Output impedance 50 ohms Input Output connectors M Type SO 239 M or N Type N Type DC Power supply Dimensions and weight DC13 8V 70mA 157 W X 117 H X 117 D mm Approx 1Kg Add 15 of full scale at 160 200MHz Power Rati
5. DAIWA CROSS NEEDLE SWR amp POWER METER CN 8 O 1 Series HP vee V aver G TYPE TYPE DAIWA CN 801 2 SWR 7 HP TYPE SSB Type X1 8 200 MHz 140 525 MHz 900 1300MHz 20 200 2KW 20 200W 2 20W 10 SWR 1 1 1 00 SWR 04W 50 Q M orN DC DC13 8V CO 157 W X 117 H X 117 D m 1Kg 160 lt 200MHz 15 eT Fe BTULIKWCT x HPS 47 GT DC13 8V
6. cted power from Forward Power Appare nt loss is only produced by impeda nce mi smatch and does not include cables losses See Fig 2 The meter indicates Forward power 10W and Reflected power 0 4W At the cro ssing point of the 2 needles the indication is SWR1 5 PE P power Turn Mode switch to PE P position type can also measure PE P Peak Power in SSB operation can not measure Reflec ted Power range v G GI type When the transmitter is operated and the switch is in the PE P position the meter needle Monitor PE P of the SSB signal This function can not hold peak envelope power E RF POWER FOR VARIOUS MODULATION MODES VOLTAGES SHOWN VARIOUS VOLTAGES FOR 50 OHMS DUMMY LOAD Carrier Average Power Power w w 00V 100 100 MAM 200V Mi 100 150 100V MAAE 100V ty Oml 100V MODULATION MODE AM FM CARRIER AM Single Tone 100 modulation SSB Single Tone Modulation SSB Two Tone Modulation SSB Voice Modulation E CAUTION A iL 2 vent mechanical shock and vibration while operating maydamage the meter Forward Power Refiected Power indicates SWR Fig 2 Mathematical verification YPf YPr 710 70 4 WR 1 5 SWR IPT Pr 10 764 Pf Foward Power Pr Reflected Power During the various SSB transmission modes as shown in the table left the me
7. ng MAX 1kw 144MHz x HP type GI type DC Power 13 8V is necessary to operate gt lt Meter light ON OFF Can be switched by light switch CONTROLES AND FUNCTIONS Forward Power Reflected Power CN 801 Connect with 50 ohms coaxial cable to transmitter or transceiver Light switch 7 CROSS NEEDLE swR oo __ CN 801 series OFF HP hve Rons Ce Power measuring SWITCH SWR amp POWER METER Indicates SWR E OPERATION 1 Use only 50 ohms coaxial line fo connections This will maintain the accuracy of the meter 2 For accurate power measurements use 50 ohms pure resistance dummy load Fig 1 gt lt HP type type DC Power 13 8V is necessary to operate range switch Mode switch TYPE 1 8 200MHz TYPE 140 525MHz G TYPE soo isoomz DC Power socket for meter light amp P E P function TNPUT OUTPUT DC 13 8V a The light he Connect with 50 ohms coaxial cablle to antenna system Antenna Y 50 ohms coaxial cable 50 ohms dummy load CROSS NEEDLE SWA amp POWER METER CN 801 senes pior O EA TYPE 1 8 200Wz TYPE io szsWe E TYPE 200 13002 DAIWA industry co itd To DC 13 8V Fig 1 3 Effective Radiated Power amp SWR Select the Mode switch to TAVG position To measure effective radiated power subtract refle
8. pe X SSB AVG PEP SSB MODE SW AVG PEP 3 ZTF 3 y 0 4 CROSS NEEDLE FORWARD a REFLECTTED a SWR 2 10W 0 4W SWR
9. ter reading of AVG and PE P will differ Therefore when in the SSB transmit mode befor switching the mode switch from AVG to PE P make certain that the meter power setting is correct Otherwise the meter needle will go off scale resulting in damage to the instrument As the meter movements has high sensitivity it should be handled with utmost attention Pre Measuring power with a poorly matched antenna or disconnecting the out put of the bridge In low humidity conditions the needles may stop on its way or may behave as though it cau ght on themeter face due to static electricity In such case apply commercially available sta tic cream or spray for plastics or clothes on the meter face The needles return to the origi nal position DAIWA industry co Itd http www daiwa industry co jp Use only 50 ohms coaxial cable for connections This will maintain the accuracy of the meter DAIWA INDUSTRY CO LTD Foreign trade div 3 36 6 Ikegami Ota ku TOKYO 146 0082 JAPAN Phone 81 3 3755 5645 Fax 81 3 3755 2253
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