TM 11-6625-508-10 DEPARTMENT OF THE ARMY TECHNICAL
Contents
1. Figure 2 1 Signal Generator TS 510 U Hewlett Packard Front Panel Controls 13 Section Il NAVAER 16 30USM44 501 e y E N 1 1 E FA e ed f I qs T lt i i S TEC 17 le E N We N NV mw QD 4 A QUEUE ons QU Figure 2 2 Signal Generator TS 51OAt U Hewlett Packard Front Panel Controls b Turn the power switch to the ON position The HEATER pilot lamp should extinguish as the POWER pilot lamp lights indicating that power is no longer being supplied to the space heaters but is being applied to all circuits of the signal generator c Place the MOD SELECTOR In the CW position and the OUTPUT LEVEL control to near maximum Other controls may be set in any position before turning on the generator d After an approximate 1 minute warm up adjust the AMP TRIMMER maximum reading on the OUTPUT VOLTS meter and set the OUTPUT LEVEL control to obtain a reading at SET LEVEL on the OUTPUT VOLTS meter CAUTION Do not apply an external r f or d c voltage to the RF OUTPUT jack on the signal generator To do so can burn out the impedance matching network in the output attenuator Special care 14 must be taken when working with transceiver type apparatus such as the AN ARC 27 equipment to insure that the transmitter remains inoperative while the signal2. peak pulse required Combined rise and decay time of r f output pulse less than 4 micro seconds from 40 to 220 megacycles less than 1 microsecond from 220 to 420 megacycles Residual level at least 20 db below 0 5 peak pulse output INPUT IMPEDANCE FOR EXT SINE INPUT IMPEDANCE FOR EXT PULSE MODULATION 50 000 ohms shunted by 40 micromicrofarads FREQUENCY STABILITY Frequency drift less than 0 005 per 15 minute period OUTPUT LEVEL AND RATED LOAD INPUT POWER REQUIREMENTS 115 230 volts ac single phase 115 volts ac single phase Pertains only to TS 510 U Pertains only to TS 510A U Pertains only to TS 510A U NAVAER 16 30USM44 501 Section TRANSIT CASE CY 2105 USM 44A TRANSIT CASE CY 1605 USM 44 Figure 1 7 Transit Cases CY 1605 USM 44 and CY 2105 USM 44A 9 Section Paragraphs 1 31 t 1 40 16 3005 44 501 OUTPUT FUSE MOUNT MX 57 09 3494suU Figure 1 8 Accessory Cover e R f Output Fuse Mount MX 1730 U a special coaxial fuseholder for protection of the output attenuator is included as an accessory for the TS 510 U and the TS 510A U Signal Generators This fuse protects the output attenuator from damage in the event that an external voltage is accidentally applied at the RF OUTPUT The fuseholder connects to the output cable and is provided with 2 standard female Type N output connectors A Type 8AG 1 16 a
3. RECOMMENDED CHANGES TO EQUIPMENT TECHNICAL PUBLICATIONS SOMETHING WRONG wim mis eed a FROM PRINT YOUR UNIT S COMPLETE ADORESS THEN JOT DOWN THE DOPE ABOUT IT ON THIS FORM CAREFULLY TEAR IT OUT FOLD AND DROP PUBLICATION NUMBER PUBLICATION DATE b BE EXACT PIN POINT WHERE IT 15 THIS SPACE TELL WHAT 18 WRONG 2028 2 PREVIOUS EDITIONS P S IF YOUR OUTFIT WANTS TO KNOW ABOUT YOUR OBSOLETE RECOMMENDATION MAKE A CARBON COPY OF THIS AND GIVE IT TO YOUR HEADQUARTERS IN THE MAIL CD CED GED GD GED Q Gua TEAR ALONG PERFORATED LINE omana ouman Come come CED Gee Gee Ge 020849 000 This fine document Was brought to you by me Liberated Manuals free army and government manuals Why do I do it I am tired of sleazy CD ROM sellers who take publicly available information slap watermarks and other junk on it and sell it Those masters of search engine manipulation make sure that their sites that sell free information come up first in search engines They did not create it They did not even scan it Why should they get your money Why are not letting you give those free manuals to your friends I am setting this document FREE This document was made by the US Government and is NOT protected by Cop
4. USED ON TS SIOA U ONLY Figure 2 4 Diagram Showing Relationships of Front Panel Controls to Major Circuits 16 NAVAER 16 30USM44 501 f Set the OUTPUT LEVEL control to obtain a reading at SET LEVEL on the OUTPUT VOLTS meter g Set the output attenuator for the desired output level as read directly from the attenuator dial h Adjust the FINE FREQ ADJUST control when very small refinements m the r f output frequency are desired Recheck the r f amplifier tuning 2 13 SETTING THE TS 510 U TS 510A U FOR INTERNAL SINE WAVE MODULATION 2 14 For Internal sine modulation of the r f output signal the signal generator supplies the same quality r f signal as for CW operation modulated by either 400 or 1000 cycle internally generated sine waves as selected by the MOD SELECTOR switch The modulating frequencies are accurate to within 5 and the modulation envelope contains less than 5 distortion for modulation percentages up to 30 less than 10 at 50 modulation Percent modulation is continuously adjustable from 0 to 95 by the MOD LEVEL control at r f power levels of 0 dbm or less Incidental frequency modulation resulting from amplitude modulation of the output signal is extremely low being only a few hundred cycles for reasonable modulation percentages For modulation percentages below 50 the frequency modulation index will not exceed 1 0 Output frequency and power level set in same manner as for CW operatio
5. 31 1 Signal Generator TS 510A U 16 13 3 4 20 62 1 Transit Case CY 2105A USM 44A 24 20 17 5 8 32 1 Cord CX 3135 U 6 ft 0 in 72 0 6 1 Cord CG 409 U 4 ft 0 in 48 0 2 2 Connector Adapter UG 201A U 1 Connector Adapter UG 349A U 1 R f Output Fuse Mount MX 1730 U 4 5 8 3 4 dia 0 4 1 R f Amplifier Tube Wrench 2 7 8 3 4 dia 0 2 located in chassis clips Section Paragraphs 1 10 td 1 12 1 10 The TS 510A U VHF Signal Generator is a general purpose test instrument capable of furnishing accurately adjustable radio frequency signals from 0 1 microvolt to 0 5 volt in amplitude over a frequency range from 10 to 420 megacycles The instrument may be amplitude modulated by internally generated sine waves or by externally applied sine waves or pulses The TS 510A U includes a built in crystal controlled heterodyne calibrator which permits the operator to adjust the output frequency to a high degree of accuracy This particular circuit includes a front panel switch for selecting either of two beat frequencies 1 or 5 megacycles which will appear throughout the range of the signal generator The output signal level is adjusted by an attenuator calibrated in both volts and decibels below 1 milliwatt dbm and can be read directly to an accuracy of 2 db over the full frequency range without the use of external pacts monitoring devices or charts The instrument features straightfo
6. Company under Orders No NOasN38333733A N383 36708A and N383 47671A is the Signal Generator TS 05 44 ADAPTERS FUSEHOLDER POWER CABLE ASSEMBLY s CX 3135 U 8 CABLE ASSEMBLY 510A U shown in figure 1 5 The main component of Signal Generator Test Set AN USM44A manufactured by the Nuclear Electronics Corporation under Order No N383 46472 is the Signal Generator TS 510A U shown in This equipment is manufactured in accordance with Specification MIL G 7702 AER dated 15 November 1953 1 4 Throughout this handbook references to Signal Generator TS 510A U will be construed to mean all models references to Signal Generator TS 510A U refer specifically to the Signal Generator TS 510A U manufactured by the Nuclear Electronics Corporation under Order No N383 46472 and references to Signal TRANSIT CASE y 4 2105 1 5 44 777777777777 777777777777 TS 510A U CG 409 U Figure 1 2 Signal Generator AN USM 44A Hewlett Packard Equipment Supplied 1 Section Paragraphs 1 5 9 1 9 SIGNAL GENERATOR 15 319 CABLE ASSEMBLY 8 40 9 8 c 409 U NAVAER 16 30USM44 501 TRANSIT CASE CY 2108A USM 444 Ye ADAPTERS ASSEMBLY FUSEHOLDER Figure 1 3 Signal Generator AN USM 44A Nuclear Electronics Equipment Supplied Generator
7. Ine Ye eee TR Rep General Description of Complete 1 2 10 01 entente nnn nnn EQUIPMENT 22 1 8 Equipment Required but Not 1 9 General DeSCIiPtiOn ccccccccccssccseesecesccssesecusescseceessecsaesaessecsacsaesseausescasssasesecsaecaecsucsaeeaecsaeesaesecsaeentes Electrical Characteristics cccccsssscssscsssssscsessscscesessssssevssessessseceuseseceseceessceceuseseseseseesecsececevaeseceseseuas RT 1 29 Accessories ives cant artic dri deban le EP CU nata a et dU 1 31 Differences in FINE FREQ ADJUST cte eset ave ec eyes cepe ewe redo EROR Cystal Calibrator ua tad uda tratta Crystal Calibrator 15 510 cete ere aaia E 1 35 Output Attenuator Control TS 510 U and TS 510A U seen Output Attenuator Control aerias Internal Modulation TS 510 U and 8 510 0 Internal Modulation 9 10 39 External Pulse Modulat
8. NAVSANDA Publication 378 Navy and AFR 71 4 Air Force c Comments on Manual Forward all comments on this publication direct to Commanding Officer U S Army Electronics Materiel Support Agency ATTN SELMS MP Fort Monmouth N J DA Form 2028 Recommended changes to DA Technical Manual Parts Lists or Supply Manuals 7 8 or 9 will be used Add section IIL1 lafterlsection Section 1 MAINTENANCE INSTRUCTIONS 3 1 1 Scope of Operator s Maintenance The maintenance duties assigned to the operator of Signal Generators AN USM 44 and AN USM 44A are listed below together with a reference to the paragraphs covering the specific maintenance function The duties assigned do not require tools or test equipment other than those issued with the set Daily maintenance service and inspection b Weekly maintenance service and inspection 3 1 5 Cleaning 3 1 6 9131 3 1 2 Preventive Maintenance Preventive maintenance is the systematic care servicing and inspection of equipment to prevent the occurrence of trouble to reduce downtime and to assure that the equipment is serviceable a Systematic Care The procedures given in and 3 1 6 bover systematic essential to proper upkeep and operation of the signal generator The cleaning operations should be performed once a day If the equipment is not used daily the cleaning operations must be performed before opera
9. TS 510A U refer specifically to the Signal Generator TS 510A U manufactured by the Hewlett Packard Company under Orders No NOasN38333733A N383 36708A andN383 46471A The information contained in this handbook is applicable to Signal Generator TS 510 U and all models of Signal Generator TS 510A U unless otherwise indicated 1 5 Other publications applicable to this equipment are a Handbook of Service Instructions NAVAER 1630USM44502 b Handbook of Overhaul Instructions NAVAER 1630USMA44 503 c Illustrated Parts NAVAER 163005 44 504 Breakdown 1 6 GENERAL DESCRIPTION OF COMPLETE EQUIPIMENT Sed figures 1 111 2 1 3 1 7 EQUIPMENT SUPPLIED Refer to Table a tabular list of the equipment supplied 1 8 EQUIPMENT REQUIRED BUT NOT SUPPLIED To use the crystal calibrator included as an Integral part of this equipment a 600 ohm high impedance headset or the equivalent must be provided by the operator When external modulation of the signal generator is desired an external source of modulating voltage must be provided by the operator 1 9 GENERAL DESCRIPTION Se figures 1 1 1 2 and Signal Generator AN USM 44 is the nomenclature assigned to Signal Generator TS 510 U and its accessories and Signal Generator AN USM 44A is the nomenclature assigned to Signal Generator TS510A U and its accessories This equipment is complete self contained transportable and includes in addition to th
10. amplitude modulation of the CW output signal is less than 0 1 level of harmonics spurious signals contained in the CW output signal is 40 decibels below the level of the output signal when the output level is greater than 200 microvolts 1 21 The TS 510 U is especially suitable for aligning narrow band a m receivers In such applications during actual receiver alignment a_ significant amount of spurious f m In the generator may result in mis tuning of the receiver due to unwanted detection by the selectivity characteristic of the i f amplifier in the receiver To keep spurious to a negligible value the instrument employs a master oscillator power amplifier type of r f generator circuit Modulation is Introduced at the power amplifier stage and has little or no effect onO the frequency of the oscillator A buffer stage between the oscillator and amplifier further isolates the oscillator The effectiveness of these measures is such that sourious f m is less than 0 00196 at 3096 modulation for frequencies below 100 megacycles and less than 1000 cps above 100 megacycles 1 22 To minimize r f leakage all r f signal circuits are housed in an aluminum casting the access covers of which are sealed with wire braid Leakage is such that when the output signal is adjusted for 0 1 microvolt the conducted signal leakage at any other front panel connector and the radiated leakage two inches from the instrument are each
11. and as soon after completion of the mission as possible 3 1 4 Daily Maintenance Service and Inspection Chart Item Procedure References NO Item Normal condition or result 1 COMPLETENESS Inspect the equipment for Equipment must be complete table T completeness 2 INSTALLATION Inspect the equipment for Installation is in accordance with paragraph 2 proper installation 3 CLEANLINESS Inspect for cleanliness Signal generator must be clean and dry inside 3 1 6 and out free of grease dirt rust corrosion and fungus 7 SWITCHES KNOBS AND DIALS Inspect for Items are firmly attached Action is positive excessive looseness Check for proper without backlash binding or scraping mechanical action by setting each control to each of its settings 8 METERS Check for broken glass windows Windows should not be chipped broken or cracked 16 PILOT OR INDICATING LAMP Inspect Lamp should light when equipment is turned burned out lamps on 17 OPERATIONAL CHECK Refer to section TI Refer td section 3 1 5 Weekly Maintenance Service and Inspection Chart Item Procedure References NO Item Normal condition or result PRESERVATION Inspect for preservation Painted surfaces must be free of bare spots rust and corrosion CORDS AND CABLES Inspect for cuts Power cord and signal cables should be free of cracks strain and fraying cuts cracks strains and fray
12. are based on a mismatch of 1 2 VSWR between the signal generator and transmission line The maximum loss shown is the total loss from the maximum power available from the generator for a given setting of the output attenuator and includes the possible generator VSWR of 1 2 The data do not allow for losses in the transmission line to the load since in most cases such losses are negligible 2 26 It will be seen that when the load is matched to the transmission line the greatest loss from the maximum power available from the signal generator is approximately 0 06 db Mismatches causing the voltage standing wave ratios given in the left hand column will give power losses within the limits shown in the remaining two columns Although the losses as shown in db do not consist of large numerical values they may represent a considerable change in the voltage calibration of the output attenuator indicator In relation to the voltage impressed across the external load 16 3005 44 501 2 27 In most cases when making measurements receivers designed to work from a 50 ohm line and antenna the standing wave ratio in the line from the signal generator to the receiver is not significant The reason for this is that any power reflected from the receiver back toward the generator represents a deficiency in receiver design and the amount of power lost in such cases is considered as a loss subtractive from the gain of the receiver A som
13. long Cord 2273 is the power cord for the TS 510A U b Cord CG 409 U 4 ft is the signal input cable for the TS 510 U and TS 510A U consists approximately 4 feet of RG 58 U cable with UG260 U plug on each end Cord 2429 is the signal input cable for the TS 510A U Two of these signal input cables are supplied with the instrument c Connector Adapter UG 201A U is a BNC male to Type N female adapter it is included as an accessory for convenience in making cable connections to the signal generator Sed figure 18 d Connector Adapter UG 349A U included for the same purpose is a BNC female to Type N male adapter Sed figure 1 8 Section NAVAER 16 30USM44 501 Table Specifications for Signal Generators TS 510 U and TS 510A U TYPES OF OUTPUT CW Internal sine wave amplitude modulation External amplitude modulation External pulse modulation FREQUENCY RANGE 10 to 420 megacycles covered in five bands ACCURACY OF FREQUENCY With crystal calibrator 0 05 0 at checkpoints Without calibrator CALIBRATION 0 5 overall CRYSTAL CALIBRATOR 5 megacycle oscillator accurate to 0 01 providing check points at each 5 megacycles over full frequency range Provides 0 1 milliwatt or better to a 600 ohm headset 5 megacycle oscillator accurate to 0 01 providing check points at each 1 megacycle and 5 megacycles over the full frequency range 1 megacycle oscillator accurate to 0 01
14. power from power cord supplied 2 AC 3 AMP fuse Protects power source and instrument against short circuits 3 SPARES fuses Replacement 3 amp fuses 4 DC 0 25 AMP fuse Protects the internal power supply against short circuits 5 SPARES fuse Replacement 0 25 amp fuse 6 HEATER pilot lamp Pilot lamp indicates power is applied to generator and space heaters are in operation 7 Power Switch In the ON position all circuits of the signal generator are energized 8 POWER pilot lamp Pilot lamp indicates when main circuits are energized 9 MOD SELECTOR Adjusts signal generator circuits for desired type of operation 10 FREQUENCY RANGE selector Selects frequency range and positions the range pointer on MEGACYCLES dial 11 FREQUENCY control Controls the output frequency in combination with the FREQUENCY RANGE sed figure 2 3 switch Frequency Control see figures 2 1 and 2 2 12 MEGACYCLES indicator Indicates frequency of the r f output signal directly in megacycles 13 AMP TRIMMER control Tunes r f power amplifier for maximum output 14 OUTPUT LEVEL control Adjusts the r f power level existing at input to output attenuator 15 OUTPUT VOLTS DBM Indicates r f power level existing at input to output attenuator indicator 16 Output Attenuator control Selects and indicates the r f output signal level in microvolts millivolts and decibels 17 RF OUTPU
15. steps below Power Switch ON MOD SELECTOR Begin on CW FREQUENCY RANGE Begin on A range Frequency Control Begin at 10 megacycles OUTPUT LEVEL Begin at maximum setting AMP TRIMMER Tune for maximum reading on OUTPUT VOLTS meter at each frequency tested MOD LEVEL Set to minimum XTAL CAL GAIN Set to maximum 1 MC OFF 5 MC Set to 1 MC Located on Signal Generator TS 510A U a Noting the reading on the OUTPUT VOLTS indicator adjust the OUTPUT LEVEL control from minimum to maximum at various frequencies over the range of the signal generator Peak the TRIMMER control at each frequency tested A reading from near 0 to full scale should be obtainable at any frequency 20 b Using the headset connected to the XTAL CAL OUTPUT jack note the beat frequency checkpoints at various frequencies across the range of the signal generator At any checkpoint it should be possible to set the frequency dial calibration on frequency with the frequency window index cursor c On Model TS 510A U with the headset connected to the XTAL CAL OUTPUT jack note the beat frequency checkpoints at various frequencies across the range of the signal generator If the beat frequency cannot be heard set the 1 MC OFF 5 MC control to the 5 MC position and repeat the above procedure At any checkpoint it should be possible to set the frequency dial calibration on frequency with the frequency window index cursor d Set the MOD S
16. 005 44 501 Section Paragraphs 2 1 10 2 10 SECTION II OPERATING PROCEDURES 2 1 SCOPE OF PROCEDURES 2 2 This section Illustrates and describes the operating controls for the TS 510 U and TS 510A U and gives step by step procedures for operating signal generator in each mode of operation continuous wave internal sine modulation external sine modulation and external pulse modulation All procedures usually require that the instrument first be set up for CW operation to establish the exact frequency and power output requirements the signal generator is then switched to the desired mode of operation Instructions for using the crystal controlled frequency calibrator and for loading the output of the signal generator are also included Material In this section is as follows 2 3 Installation Operating Controls Dials and Terminals Turning On the Equipment 2 11 Setting the Equipment for Continuous Wave Operation 2 13 Setting the Equipment for Internal Sine Wave Modulation 2 15 Setting the Equipment for External Sine Wave Modulation Setting the Equipment for Pulse Modulation Using the Frequency Calibrator TS 510 U 2 21 Using the Frequency Calibrator TS 510A U 2 23 Signal Generator Loading Considerations Turning Off the Equipment 2 3 INSTALLATION 2 4 Since the TS 510 U or the rs 510A U is portable equipment designed for test bench use and not for permanent installation no
17. 2 20 frequency indicator in the TS 510 U is accurate to within 0 5 percent when the white line on the index window cursor is set vertically i e the index is in the center of its movable range To obtain higher accuracy use the crystal controlled frequency calibrator to adjust the cursor and set the frequency dial calibration exactly on frequency at the checkpoint nearest the desired operating frequency The frequency calibrator provides a beat frequency checkpoint at each multiple of 5 megacycles over the full frequency range of the signal generator which can be heard by connecting a headset to the XTAL CAL OUTPUT jack To use the frequency calibrator proceed as follows a Connect headset to the XTAL CAL OUTPUT lack and set XTAL CAL GAIN control to the maximum CW position b Tune the signal generator to the desired operating frequency then tune to the nearest 5 megacycle checkpoint Tune for zero beat c With signal generator set to zero beat adjust index window cursor so that the calibration of frequency dial is exactly on at this checkpoint d Tune the signal generator to the nearest checkpoint on the other side of the desired operating frequency and note dial calibration at this point e The desired operating frequency can then be obtained by interpolation either between the two checkpoints or between the two closest indicator calibrations whichever is more accurate 18 NAVAER 16 30USM44 501 f Below app
18. Army DASA 6 USASA 2 CNGB 1 Cof Engrs 1 TSG 1 CSigO 5 CofT 1 USA CD Agey 1 USCONARC 5 USAMC 5 ARTDCOM 2 ARADCOM Rgn 2 OS Maj Comd 3 OS Base Comd 2 LOGCOMD 2 USAECOM 5 USAMICOM 3 USASCC 4 MDW 1 Armies 2 Corps 2 USA Corps 3 USATC AD 2 USATC Engr 2 USATO Inf 2 USATC Armor 2 Instls 2 except Ft Monmouth 63 Svc College 2 Br Svc Sch 2 GENDEP OS 2 EARLE G WHEELER General United States Army Chief of Staff Sig Dep OS 12 Sig Sec GENDEP 5 Army Dep 2 except Ft Worth 8 Lexington 12 Sacramento 28 Tobyhanna 12 USA Elct RD Actv White Sands 13 USA Elct Rd Actv Ft Huachuca 2 USA Trans Tml Comd 1 Army Tml 1 POE 1 USAOSA 1 AMS 1 WRAMC 1 AFIP 1 Army Pic Cen 2 USA Spt 1 USA Elct Mat Agcy 25 Chicago Proc Dist 1 USARCARIB Sig Agcy 1 Sig Fid Maint Shop 3 JBUSMC 2 Units org under fol TOE Two copies each UNOINDC 11 7 11 157 11 16 11 500 4 11 57 11 557 11 98 11 587 11 417 11 592 11 155 11 597 NG State AG 3 units same as active army except allowance is 1 copy to each unit USAR None For explanation of abbreviations used see AR 320 50 AGO 9131A NAVAER 16 30USM44 501 Table of Contents TABLE OF CONTENTS Section Page L GENERAL DESCRIPTION
19. CE JAN QUANTITY DESIGNATION TYPE FUNCTION 1 V 1 5670 Modulator limiter 1 2 5814 12 07 Modulator oscillator 3 V 3 4 5 6CL6 Modulator amplifier 1 V 6 5675 Radio frequency oscillator 1 V 7 6804 Radio frequency buffer 1 V 8 5876 Radio frequency amplifier 1 V 9 6AU6BWA Xtal calibrator oscillator 6U8 2 V 10 V 11 12AT7WA Xtal calibrator amplifier 1 V 12 6AU6BWA Voltage control amplifier 1 V 13 6080 Series voltage regulator 1 V 14 6AU6WA Voltage control amplifier 1 15 5651 Gaseous voltage regulator 1 V 16 6080 Series voltage regulator 1 V 17 5687 Heater supply multivibrator 2 V 18 V 19 6AH6 Modulation indicator amplifier 1 V 20 5726 6AL5W Modulation meter rectifier 1 V 21 5814 12AU7 Modulator meter bridge tube 1 CR 1 G11A Calibrator mixer diode 2 CR 2 Power monitor detector CR 3 1N82 Power monitor compensator CR 7 1N34 R f amplifier cathode clamp ml MODEL S TS 510 U TS 510A U TS 510A U All All All All All TS 510 U TS 510A U TS 510A U All All All All All All All All All All All All All 22 HEADQUARTERS DEPARTMENT OF THE ARPMY Washington 25 D C 20 September 1962 TM 11 6625 508 10 a reprint of Navy publication NAVWEPS16 30USMA144 501 15 January 1960 is published for the use of Army personnel BY ORDER OF THE SECRETARY OF THE ARMY Off
20. DEPARTMENT THE ARMY TECHNICAL MANUAL TM 11 6625 508 10 OPERATOR S MANUAL SIGNAL GENERATORS AN USM 44 AND AN USM 44A EEE This reprint includes all changes in effect at the time of publication change 1 HEADQUARTERS DEPARTMENT OF THE ARMY SEPTEMBER 1962 11 6625 508 10 C1 TECHNICAL MANUAL SIGNAL GENERATORS AN USM 44 AND AN USM 44A OPERATOR S MANUAL TM 11 6625 508 10 CHANGES 1 HEADQUARTERS DEPARTMENT OF THE ARMY WASHINGTON 25 9 1963 TM 11 6625 508 10 20 September 1962 is changed as follows Add paragraphs 1 5 1 and 1 5 2 after 1 5 1 Index of Publications Refer to the latest issue of DA Pam 310 4 to determine whether there are new editions changes or additional publications pertaining to your equipment DA Pam 310 4 is an index of current technical manuals technical bulletins supply bulletins lubrication orders and modification work orders that are available through publications supply channels The index lists the individual parts 10 20 35P etc and the latest changes to and revisions of each equipment publication 1 5 2 Forms and Records a Heports of Maintenance and Equipment Improvement Hecommendations Use equipment forms and records in accordance with instructions in TM 38 750 b Heport of Damaged or Improper Shipment Fill out and forward DD Form 6 Report of Damaged or Improper Shipment as prescribed in AR 700 58 Army
21. ELECTOR to PULSE The OUTPUT VOLTS meter reading should drop to zero Externally applied pulses will cause only a very small reading on the OUTPUT VOLTS meter e Set the MOD SELECTOR to EXT MOD then to 400 and 1000 The OUTPUT VOLTS indicator should give same reading as for CW operation No modulation will occur until the MOD LEVEL control is advanced from minimum lf the PERCENT MODULATION indicator does not read exactly zero when the MOD LEVEL control is set to minimum adjust the recessed front panel zero set potentiometer to zero the meter f With the MOD SELECTOR set to 400 and then to 1000 advance the MOD LEVEL control Readings from 1 to 95 should be obtainable at any r f output frequency It may be noted that the reading on the OUTPUT VOLTS indicator may be made to shift up or down slightly when high percentages of modulation are applied The shift is normal but it may not always occur 3 3 If the signal generator gives satisfactory indications in the foregoing tests it may be presumed to be In good operating condition NAVAER 16 3005 44 501 Section IV Paragraphs 4 1 td 4 5 SECTION IV EMERGENCY OPERATION AND REPAIR 4 1 INTRODUCTION 4 2 lf a circuit failure occurs in the TS 510A U Signal Generator continued operation is not recommended When a sign of malfunction is observed refer to the troubleshooting information contained in the Handbook of Service Instructions Section V of the Service
22. Handbook gives detailed instructions for servicing the TS 510A U without extensive test equipment and will enable the operator to service many of the simpler troubles that can occur 4 3 The degree of emergency operation that is possible with the TS 510A U Signal Generator depends upon the specific need of the operator For example if the operator requires only CW r f output signal the modulator and modulation indicator circuits are not used 58l4 I2AU7 5726 6AL5W __ 15 155 S 5651 12 VI and may be inoperative when modulation is required and the internal modulation oscillator is inoperative an external modulating voltage can be substituted No other emergency operation of the signal generator is practical 4 4 ELECTRON TUBE COMPLEMENT 4 5 The electron tubes used in the TS 510A U Signal Generator are listed in Table V with their function The tube locations on the signal generator chassis are shown in figure 4 1 VII I2 VIO I2 AT7WA V2 5814 12 07 SIGNAL GENERATOR 5 Figure 4 1 Tube Location Diagram Section IV NAVAER 16 30USM44 501 Table V Electron Tube Complement Model designation TS 510 U refers to TS 510 U Manufactured by Hewlett Packard only TS S10A U refers to TS 510A U manufactured by Nuclear Electronics only TS e refers to TS 510A U manufactured by Hewlett Packard only REFEREN
23. N AND ee Electron Tube Complement IUE List of Illustrations NAVAER 16 30USM44 501 List of Tables Figure Page Signal Generator AN USM 44 Hewlett Packard Equipment Signal Generator AN USM 44A Hewlett Packard Equipment 1 3 Signal Generator AN USM 44A Nuclear Electronics Equipment Supplied 1 4 Signal Generator TS 510 U Hewlett Packard nnne Signal Generator TS 510A U Hewlett Packard Signal Generator TS 510A U Nuclear 6 Transit Cases CY 1605 USM 44 2105 05 44 1 8 PCCOSSONY usine M I MIT DIE Lt 10 Signal Generator TS 510 U Hewlett Packard Front Panel Signal Generator TS 510A U Hewlett Packard Front Panel Controls 2 3 Signal Generator TS 510A U Nuclear Electronics Front Panel 15 2 4 Diagram Showing Relationships of Front Panel Controls to Major Circuits 4 1 Tube Location LIST OF TABLES Table Title Page 1 Equipment Supp
24. S 510A U will 100 amp modulate the r f output signal The peak level of the r f output pulse will be within 1 db of the CW level established by the same settings of the OUTPUT LEVEL control and output attenuator The amplitude of the modulation pulse is not adjustable by the MOD LEVEL control For pulse modulation proceed as follows a Follow step by step procedure for obtaining CW operation Set the CW output level to the peak voltage level desired for the r f output pulse Section Il Paragraphs 2 19 to 2 28 Table IV Power Losses as Helated to VSWR in Generator Load VSWR MINIMUM MAXIMUM IN 50 OHM POWER POWER LINE LOSS LOSS 1 0 06 db 06 db 1 5 08 db 37 db 2 0 3 db 85 db 2 5 6 db 1 3 db 3 0 9 db 1 7 db 4 0 1 5 db 2 4 db 5 0 2 db 3 1 db b Setthe MOD SELECTOR to pulse external pulse source to provide between 10 and 50 volts Connect the pulser to the EXT PULSE jack on the signal generator d The r f pulse now obtained from the RF OUTPUT jack should be controlled in amplitude only by the output attenuator the peak amplitude of the pulse being read directly in volts from the attenuator indicator If the output frequency is changed the signal generator should be set to CW operation for peaking the amplifier and setting the output level to SET LEVEL on the OUTPUT VOLTS meter then returned to PULSE operation 2 19 USING THE TS 510 U FREQUENCY CALIBRATOR
25. T jack Output connector for r f output signal see CAUTION 18 XTAL CAL OUTPUT connector Connects headset to crystal calibrator 19 XTAL CAL GAIN control Adjusts loudness of beat frequency signal from frequency calibrator 20 EXT MOD jack Receives sine wave from external source for modulation of r f output signal 21 MOD LEVEL control Adjusts modulation percentage to desired value 22 PERCENT MODULATION Indicates the percentage modulation of the r f output signal indicator 23 ZERO screwdriver adjustment Electrically sets the modulation meter to zero with instrument in operation with no modulation applied 24 EXT PULSE jack Receives pulses from external source for modulation of the r f output signal 25 Frequency dial index adjustment Adjusts frequency dial index over short range 12 26 27 28 16 3005 44 501 Section 11 Table Controls and Terminals cont DESIGNATION Frequency dial lock Attenuator dial lock FINE FREQ ADJUST 1 MC OFF 5 1 MC OFF 5 Used only on Signal Generator TS 510A U FUNCTION Locks frequency dial Locks attenuator dial Adjusts RF OUTPUT frequency in very small increments Selects 1 megacycle and 5 megacycle outputs or no output OFF position Selects 1 megacycle and 5 megacycle outputs or no output OFF position Used only on Signal Generators TS 510 U and TS 510A IU
26. ached to the case by eight trunk type latches See figure 1 71 1 27 Transit Case CY 2105 USM 44A is a watertight carrying case provided for shipment and storage of Signal Generator TS 510A U along with the accessories and instruction books supplied with the AN USM 44A equipment Its construction is similar to Transit Case CY 1605 USM 44 1 28 Transit Case CY 2105A USM 44A is a watertight carrying case provided for shipment and storage of Signal Generator TS 510A U along with the accessories and instruction books supplied with the AN USM 44A equipment Its construction is similar to Transit Case CY 1605 USM 44 1 29 ACCESSORIES 1 30 The equipment accessories consist of 3 cables 2 connector adapters and fuse mount Sed figure 1 1 Equipment descriptions and purposes are as follows a Cord CX 3135 U 6 ft is the power cord for the TS 510 U and consists of a 6 foot length of 3 conductor cable terminated on one end by a 3 contact female AN type connector for connection to the front panel power receptacle on the signal generator the other end is terminated in a dual purpose plug which may be connected either to a standard 2 conductor a c outlet or to a special 3 conductor type A removable third contact blade which screws to the body of the plug grounds the chassis of the instrument when used with the appropriate a c power receptacle A similar cord Cord CX 3135 U 8 ft is the power cord for the TS 510A U It is 8 feet
27. be read to an NAVAER 16 30USM44 501 accuracy of 2 db or better over the entire frequency and attenuation range when the Instrument is connected to an external 50 ohm resistive load The internal impedance of the generator as seen at the output jack is 50 ohms over the full frequency range when connected to a 50 ohm resistive load the VSWR due to mismatch will not be greater than 1 2 SWR of 1 6 db 1 19 The r f output signal from the TS 510 U may be amplitude modulated bh internally generated 400and 1000 cycle sine waves or by externally applied sine waves above 4 volts rms over a frequency range from 20 cps to 100 kc or by externally applied pulses above approximately 10 volts When pulse modulated the instrument is capable of generating pulses of radio frequency energy as short as 4 microseconds at r f signal frequencies above 40 megacycles and as short as 1 microsecond above 220 megacycles Figure 1 6 Signal Generator TS 510A U Nuclear Electronics 6 NAVAER 16 30USM44 501 The degree of sine wave modulation is continuously variable from 0 to 95 by a front panel control Modulation of the r f signal is continuously displayed on a direct reading percent modulation meter having an accuracy of 10 or better 1 20 The envelope of the sine wave modulated signal contains less than 5 distortion for modulation percentages below 30 and less than 10 distortion for modulation percentages between 30 and 50 Incidental
28. ck surfaces of the cabinet The chassis is removable by loosening four screws in the rear of the cabinet 1 13 All r f signal circuits and the output attenuator are housed 1ii an aluminum diecasting divided into three compartments For ease in r f tube replacement all three r f tribes are located In the uppermost compartment separate from the tuned circuits This compartment is accessible by removing the small plate under the frequency dial drum The compartments containing the tuned circuits are accessible when the side plate is removed 1 14 All controls meters and terminals are located on the front panel and are marked with large black filled engraved letters The frequency dial is of the drum type with a scale length of 11 3 4 inches for each band or approximately 59 inches for the entire range The full YN Yy viy y lt 90660 460 Section I Paragraphs 1 13 to 1 17 frequency range is covered is five bands each band being read on a separate dial scale An automatically positioned pointer indicates the scale in use Except for the headset jack and the power connector receptacle all connectors on the front panel are of the type All fuses for the equipment are replaceable from the front panel 1 15 Standby heaters are provided for the purpose of maintaining higher than ambient temperature within the cabinet during periods of intermittent use thereby preventing frequent co
29. e signal generator instrument itself the following accessories A water tight transit case power and r f cables connector adapters and an output fuseholder for protection of the r f output attenuator 16 30USM44 501 Section Table Equipment Supplied OVERALL DIMENSIONS in WEIGHT Ib QUANTITY AN TYPE DESIG HEIGHT or WIDTH DEPTH PER EQUIP LENGTH Signal Generator AN USM 44 Hewlett Packard Sed figure 1 1 1 Signal Generator TS 510 U 16 13 3 4 20 62 1 Transit Case CY 1605 USM 44 24 20 17 5 8 32 1 Cord CX 3135 U 6 ft 0 in 72 0 6 2 Cord CG 409 U 4 ft O in 48 0 2 1 Connector Adapter UG 201A U 5 2 1 Connector Adapter UG 349A U 1 R f Output Fuse Mount MX 1730 U 4 5 8 3 4 dia B 0 4 1 R f Amplifier Tube Wrench 2 7 8 3 4 dia 0 2 located in chassis clips Signal Generator AN USM 44A Hewlett Packard figure 1 24 Signal Generator TS 510A U 16 13 3 4 20 62 1 Transit Case CY 2105 USM 44A 24 20 17 5 8 32 1 Cord CX 3135 U 8 ft 0 in 96 0 8 2 Cord CG 409 U 4 ft 0 in 48 0 2 1 Connector Adapter UG 201A U 1 Connector Adapter UG 349A U 1 R f Output Fuse Mount MX 1730 U 4 5 8 3 4 dia 0 4 1 R f Amplifier Tube Wrench 2 7 8 3 4 dia 0 2 located in chassis clips Signal Generator AN USM 44A Nuclear Electronics See figure 1
30. etimes overlooked factor which contributes error high frequency measurements is the improper assembly of coaxial 19 Section Paragraphs 2 27 tol 2 29 connectors A standing wave ratio of several db with attendant error can often be attributed to this cause 2 28 TURNING OFF THE EQUIPMENT 2 29 During periods of intermittent use the power Switch may be set to the standby or down position thus energizing the space heaters to prevent condensation in the instrument To completely deenergize the equipment all power must be removed by disconnecting the power cord from either the a c source or from the receptacle on the front panel NAVAER 16 3005 44 501 Section Ill Paragraphs 3 1110 3 3 SECTION III OPERATING CHECKS AND ADJUSTMENTS 3 1 GENERAL 3 2 The following procedure checks the circuits of the TS 510 U TS 510A U Signal Generator for satisfactory overall operation using only a headset connected to the internal frequency calibrator and readings taken from the two front panel meters The procedure checks all phases of operation and if trouble is encountered will lead to a portion of the instrument where the fault may lie An operator planning to use only one phase of the operation at one particular frequency may wish to limit the procedure to the tests which seem most appropriate To check the overall operation of the signal generator set the front panel controls to the following positions and proceed with
31. generator is connected to equipment antenna NOTE For protection of output attenuator on the TS 510 U and the TS 510A U a special fuseholder MX 1730 U is supplied for connection to the RF OUTPUT Jack or cable A similar fuseholder 5152 is supplied with the TS 510A U When using the signal generator for any application where there is possibility of voltage being applied at the RF OUTPUT jack this fuse must be used between the signal generator and the external equipment 16 3005 44 501 Section Paragraphs 2 11 to 2 12 Figure 2 3 Signal Generator TS 510A U Nuclear Electronics Front Panel Controls 2 11 SETTING THE TS 510 U TS 510A U FOR CONTINUOUS WAVE OPERATION 2 12 For CW operation the TS 510 U and TS510A U supply a continuous wave output signal of up to 5 milliwatts in power across an external 50 ohm load 0 5 volt with the output level directly indicated to an accuracy of better than 2 db for all conditions of operation The TS 510A U has an output level calibration accuracy of 1 db over the entire frequency and attenuation range When set for CW operation the MOD LEVEL control is inoperative and may be set to any position however the PERCENT MODULATION meter monitors the output signal during all types of operation and may display momentary fluctuations resulting from switching transients For continuous wave operation proceed as follo
32. headset 1 35 OUTPUT ATTENUATOR CONTROL TS 510 U AND TS 510A U See figures 2 1 and 2 The accuracy of the attenuator dial Is within 2 decibels for all conditions of operation at rated load 1 36 OUTPUT ATTENUATOR CONTROL TS510A U Sed figure 2 3 The accuracy of the attenuator dial is within 1 decibel for all conditions of operation at rated load 1 37 INTERNAL MODULATION TS 510 U AND TS510A U Sine waves obtainable frequencies of 400 and 1000 cps 5 Percentage modulation is continuously adjustable from 0 to 95 at output levels up to 0 dbm 1 38 INTERNAL MODULATION TS 510A U Sine waves are obtainable at frequencies of 400 and 1000 cps 10 Percentage modulation is continuously adjustable from 0 to 95 at output levels up to 0 dbm 1 39 EXTERNAL PULSE MODULATION TS 510 U AND TS 510A U Positive 10 volt peak pulse is required The combined rise and decay time of the r f output is less than 4 microseconds from 40 to 220 megacycles and less than 1 microsecond from 220 to 420 megacycles Residual level must be at least 20 db below 0 5 peak pulse output 1 40 EXTERNAL PULSE MODULATION TS510A U Positive 5 volt peak pulse is required The combined rise and decay time of the r f output is less than 4 microseconds from 40 to 220 megacycles and less than 1 microsecond from 220 to 420 megacycles Residual level must be at least 20 db below 0 5 peak pulse output 16 3
33. icial J C LAMBERT Major General United States Army The Adjutant General Distribution Active Army DASA 6 USASA 2 CNGB 1 Tech Stf DA 1 except CSigO 5 Tech Stf Bd 1 USCONARC 5 USAARTYBD 1 USAARMBD 2 USAIB 1 USARAIDBD 2 USAAVNBD 1 USA Abn Elct amp SP WAR Bd 1 SA ATBD 1 ARADCOMI 2 ARADCOM Rgn 2 OS Maj Comd 3 OS Base Comd 2 LOGCOMD 2 MDW 1 Armies 2 Corps 2 2 except Fort Monmouth 63 8tate AG 3 units same as active Army except allowance is one copy to each unit USAR None UISATC AD 12 USATC Eng 2 USATO Inf USATC FPA USATC Armor 2 USAO MC 2 Svc Colleges 2 Br Svc Se h 2 GENDEP 2 except Atlanta GENDEP none Sig Sec GENDEP 5 Sig Dep 12 except Sacramento Sig Del 17 WRAMC 1 IUSA Trans Tml Comd 1 Army Tml i1 POE 1 OSA 1 ISAEPG 2 AFIP 1 AMS 1 Army Pictorial Cen 2 EMC 1 For explanation of abbreviations used see AR 320 50 G H DECKER General United States Army Chief of Staff USA Strat Comm Comd 4 USASSA 25 2 USASSAMRO 1 2 UISARCARIB Sig Agcy 1 Sig Msl Spt Agcy 13 Sig Fid Maint Shops 3 Def log Svc Con 1 USA Corps 3 JB1SMC 2 Units organized under following TOE s 11 7 2 11 16 2 11 57 2 11 98 2 115117 2 11 155 2 11 157 2 11 50 AA AE 4 11 557 2 U S GOVERNMENT PRINTING OFFICE 1987 0 181 421 70363
34. ing HANDLES LATCHES Check Handles and latches should be properly looseness fastened to the equipment AGO 9131A 3 1 6 Cleaning Inspect the exterior of the signal generator The exterior surfaces should be clean and free of dust dirt grease and fungus a Remove dust and loose dirt with a clean soft cloth Warning Cleaning Compound Federal stock No 793095 9542 and its fumes are toxic Provide adequate ventilation Do not use near a flame b Remove grease fungus and ground in Add the appendix after table V dirt from the case use a cloth dampened not wet with cleaning compound Remove dust or dirt from connectors with a brush Caution Do not press on the meter faces glass when cleaning the meter may be damaged d Clean the front panel meters and control knobs use a soft clean cloth If dirt is difficult to remove dampen the cloth with water mild soap may be used to make the cleaning more effective APPENDIX REFERENCES Following is a list of applicable publications available to the operator of Signal Generator AN USM 44 DA Pam 310 4 Modification Work Orders TM 38 750 AGO 9131A Index of Technical Manuals Technical Bulletins Supply Bulletins Lubrication Orders and The Army Record System and Procedures By Order of the Secretary of the Army Official J C LAMBERT Major General United States Army The Adjutant General Distribution Active
35. ion TS 510 U and 5 510 0 2 4 2 10410 000000000000000000000000421 1 40 External Pulse Modulation 9 510 OPERATING PROCEDURES eles eda stella tala lel Scope of Pa RS Aaa lesa tne tate beset FESSA MET OD mmm Operating Controls Dials and 2 9 Turning on the Equipment dede Setting the TS 510 U TS 510A U for Continuous Wave Operation Setting the TS 510 U TS 510A U for Internal Sine Wave 2 15 Setting the TS 510 U TS 510A U for External Sine Wave Modulation 2 17 Setting the TS 510 U TS 510A U for Pulse Using the TS 510 U Frequency 400 nnne nee 2 21 Using the TS 510A U Frequency Signal Generator Loading Considerations sse 2 28 Turning Off the Equipment sess innen nnne eere nne OPERATING CHECKS AND 8 3 1 E EMERGENCY OPERATIO
36. less than 1 0 microvolt 1 23 plate circuits in the instrument are operated from regulated d c voltage addition the heaters in the r f oscillator buffer and power amplifier tubes are operated from regulated square wave power generated by a multivibrator This measure effectively provides greater overall stability of the system The TS 510 U is designed to operate from a nominal 115 volt 5010 1000 cycle single phase a c power source and consumes approximately 180 watts of power Signal Generator TS 510A U is designed to operate from a nominal 115 50to 420 cycle single phase a c power source Signal Generator TS 510A U is designed to operate from a nominal 115 volt 50 1000 cycle single phase a c power source and consumes approximately 195 watts of power 1 24 Further information is given In table TT 1 25 TRANSIT CASE Seelfigure 1 7 Section Paragraphs 1 20 to 1 26 Transit Case CY 1605 USM 44 is a watertight carrying case provided for shipment and storage of Signal Generator TS 510 U along with the accessories and instruction books supplied with the AN USM 44 equipment The transit case is constructed of a special laminated material consisting of wood covered on each side with aluminum sheeting The cover for the transit case is provided with a double lip which is filled with sponge rubber The double lip effects a weather tight seal when the cover for the case is closed The cover is att
37. lied sta TI Specifications for Signal Generators TS 510 U and TS 510A U hu Controls and Power Losses as Related to VSWR Generator Electron Tube 16 3005 44 501 1 Transit Case Assembly 4 Cable Assembly CG 409 U 2 Signal Generator Assembly 5 Accessory Cover 3 Cable Assembly CX 3135 U 6 Fuse holder and Adapter Figure Signal Generator AN USM 44A Equipment Supplied Section I 16 30USM44 501 Figure 1 1 Signal Generator AN USM 44 Hewlett Packard Equipment Supplied NAVAER 16 3005 44 501 Section Paragraphs 1 1 td 1 4 SECTION GENERAL DESCRIPTION 1 IDENTIFICATION Seeffigures 1 1 1 2 and 1 3 1 2 This publication comprises operating instructions for Signal Generator Test Set AN USM 44 and Signal Generator Test Set AN USM 44A figure 1 2 manufactured by the Hewlett Packard Company Palo Alto California and Signal Generator Test Set AN USM 44A manufactured by the Nuclear Electronics Corporation Philadelphia Pennsylvania 1 3 The main component of Signal Generator Test Set AN USM 44 is Signal Generator TS 510 U sed figure 1 4 The main component of Signal Generator Test Set AN USM 44A manufactured by the Hewlett Packard
38. mp fuse is utilized The fuseholder has an insertion loss of 0 05 db at 200 mc 0 56 db at 300 mc and 0 65 db at 400 mc its VSWR is not greater than 1 35 when connected to a 50 ohm resistive load See figure 1 8 A similar fuseholder 2152 is included as an accessory for the TS 510A U Signal Generator 1 31 DIFFERENCES IN EQUIPMENT 1 32 FINE FREQ ADJUST CONTROL Beginning with serial number 510 the TS 510 U Signal Generators are equipped with a short range incremental tuning device for making extremely small changes in the output signal frequency The FINE FREQ ADJUST control is operated by an additional knob on the front panel and provides from 0 01 to 0 296 adjustment in the output frequency after selection by the main frequency control dial The addition of the FINE FREQ ADJUST control does not alter the circuit operation or specifications for the signal generator The FINE FREQ ADJUST control is illustrated in figures 2 2 and 2 3 item 28 1 33 CRYSTAL CALIBRATOR TS 510 U The calibrator is a 5 megacycle oscillator accurate to 0 01 providing checkpoints at each 5 megacycles over the full frequency range also provides 0 1 milliwatt or better to a 600 ohm headset 1 34 CRYSTAL CALIBRATOR TS 510A U The calibrator is a 1 to 5 megacycle oscillator accurate to 0 01 providing checkpoints in 1 megacycle 10 increments over full frequency range It also provides 0 1 milliwatt or better to a 600 ohm
39. n For internal sine wave modulation proceed as follows NOTE When the modulation Is increased to very high percentages there may be a resulting shift in the reading on the OUTPUT VOLTS meter Reset the meter to SET LEVEL a Follow complete step by step procedure for obtaining CW operation b Set the MOD SELECTOR to 400 or 1000 as desired c Set MOD LEVEL control for desired degree of modulation as indicated on the PERCENT MODULATION indicator d Subsequent changes may be made in the frequency indicator and output attenuator settings while the instrument is being operated with modulation 2 15 SETTING THE TS 510 U TS 510A U FOR EXTERNAL SINE WAVE MODULATION 2 16 For external modulation signal source generating frequencies from 100 to above 20 000 cps with an amplitude of approximately 4 volts for TS510 U and TS 510A U and 5 volts for the TS510A U must be connected through an appropriate cable CG 17 Section Il Paragraphs 2 13 t6 2 18 409 U for TS 510 U TS 510A U or 2429 for the TS 510A U to the EXT MOD jack on signal generator The modulation is of the same high quality as that obtained with internal modulation The degree of modulation is also continuously adjustable by means of the MOD LEVEL control and is indicated directly on the front panel PERCENT MODULATION indicator Percent modulation is continuously adjustable from 1 to 95 by the MOD LEVEL control with the a
40. ndensation and moisture 1 16 ELECTRICAL CHARACTERISTICS See figures 1 4 1 5land 1 6 1 17 Signal Generator TS 510 U is capable of generating a continuously adjustable r f output signal throughout a frequency range of 10 to 420 megacycles as indicated on a direct reading dial The frequency dial calibration is accurate to better than 0 596 Figure 1 5 Signal Generator TS 510A U Hewlett Packard Section I Paragraphs 1 18 to 1 19 Calibration accuracy may be improved by employing the crystal controlled heterodyne calibrator which provides checkpoints at every multiple of 5 megacycles over the entire frequency range of the equipment The frequency dial index is adjustable by a small knurled knob on the front panel so that the dial calibration can be set exactly on frequency at any calibrator checkpoint The checkpoint signals are obtained by connecting a headset not part of the equipment to the XTAL CAL OUTPUT Jack The calibrator is accurate to 0 01 of 5 mc provides better than 0 1 milliwatt of power to a 600 ohm headset and is adjustable in output by the XTAL CAL GAIN control In addition to the above Signal Generator TS 510A U provides checkpoints of 1 megacycle over the entire frequency range of the equipment 1 18 An output attenuator calibrated to be read directly both volts and decibels provides continuous adjustment of the output signal from 4 to 127 dbm 350 millivolts to 0 1 microvolt and may
41. providing check points at each 1 megacycle over the full frequency range OUTPUT VOLTAGE Continuously adjustable attenuator provides from 0 1 micro volt minimum to 0 5 volt maximum when operated into rated load of 50 ohms OUTPUT LEVEL METER Monitors r f power level fed to output attenuator calibrated 0 to 7 dbm and 0 1 to 0 5 volt OUTPUT LEVEL CALIBRATION For all conditions of operation the accuracy of the attenuator ACCURACY dial is within 2 decibels when operated into a rated load The accuracy of the attenuator dial is 1 db over entire frequency range into a 50 ohm resistive load VSWR measured the output connector is less than 1 2 SWR 1 6 db when connected to nominal 50 ohm resistive load waves frequencies of 400 and 1000 cps 5 10 Percent modulation continuously adjustable from zero to 95 INTERNAL MODULATION at output levels up to 0 dbm 100 to above 20 000 cps Percent modulation continuously adjustable from zero to 95 at r f output levels up to 0 dom with modulating voltages from 4 to 25 volts rms EXTERNAL MODULATION PERCENT MODULATION Indicated by direct reading panel meter accurate to 10 ENVELOPE DISTORTION FOR SINE WAVE Less than 5 at 30 modulation for frequencies from 100 to MODULATION 5000 cps Less than 10 at 50 modulation MODULATION EXTERNAL PULSE MODULATION 20 000 ohms shunted by 50 microfarads Positive 10 volt 5 volt
42. roximately 50 megacycles the linear vernier scale on the FRFQ control becomes less useful since the calibration spread becomes progressively more non linear with decrease in frequency 2 21 USING THE TS 510A U FREQUENCY CALIBRATOR 2 22 When using Model TS 510A U set the XTAL CAL control to either the 1 MC or 5 MC position then follow the step by step procedure outlined ir_paragraph 2 20 LOADING 2 23 SIGNAL GENERATOR CONSIDERATIONS 2 24 When using either the TS 510 U or the TS510A U the external load connected to the instrument should be 50 ohms resistive for best accuracy of Indicated output power The output attenuator indicator has been calibrated by using a flat load of 50 ohms The internal impedance of the generator is sufficiently close to 50 ohms so that in the worst case of VSWR of only 1 2 SWR of 1 6 db exists when the generator is compared with 50 ohms Error in power level Indication with this magnitude of VSWR will have no Important effect on the accuracy of the output attenuator indicator However when the value of the load is unknown and when best accuracy of measurement is desired the standing wave ratio In the line to the load must be minimized 2 25 Table shows the calculated power loss when the load on the signal generator causes a voltage standing wave ratio of the magnitude shown The VSWR values shown are a comparison between a load and a 50 ohm transmission line The minimum loss figures
43. rward operation through the use of reliable direct reading controls and meters throughout With its high quality output signal the TS510A U is NAVAER 16 30USM44 501 especially suitable for applications requiring a minimum of incidental amplitude or frequency modulation 1 11 Signal Generator TS 510A U is designed to meet the exacting requirements of precision laboratory work as well as for general application in the 10to 420 megacycle frequency range equipment can be used for testing calibrating or troubleshooting VHF radio equipment and measuring standing wave ratios antenna and transmission line characteristics and receiver sensitivity when used in con unction with other test apparatus In order to obtain utmost accuracy for these and similar applications particular care has been taken in the design of the instrument to hold spurious modulation to a very low value under all operating conditions 1 12 The TS 510A U Signal Generator is housed in an aluminum cabinet finished in light gray non reflecting paint M AM 46 M gi Bra N habe Figure 1 4 Signal Generator TS 510 U Hewlett Packard 4 16 3005 44 501 Bow guardrail type handles attached to the front panel provide assistance in handling the instrument and protection for the controls and indicators located on the panel Ventilation is provided by louvers in the side and ba
44. special installation procedure is necessary Both the signal generator and the equipment under test should be within arms reach of the operator with connecting leads between the equipments kept as short as possible CAUTION Do not obstruct the ventilating louvers on the sides of the instrument cabinet Safe operating temperature depends on free air flow through these louvers 2 5 Models TS 510 U and TS 510A U operate from a nominal 115 230 volt 50 to 1000 cps single phase power source If the equipment is to be operated from a 230 volt source the power transformer primary connections must be changed as indicated In the 11 Handbook of Service Instructions Model TS510A U operates only from a nominal 115 volt 50 to 420 cps single phase power source On all models the power cord supplied for connecting the signal generator to a power source is equipped with a special three conductor male plug The third contact on the plug is attached directly to the metal plug body and through the cable to the chassis of the instrument When It is desired to ground the signal generator chassis the third blade may be used with outlets designed for this plug or a wire lead may be connected between the plug body and an external ground such as the a c receptacle box The third contact ground contact may be easily removed so that the plug can be connected to the standard 1 15volt a outlet 2 6 f the signal generator has been subjec
45. ted to conditions which may create moisture or condensation such as rapid changes in temperature dry any moisture which may be present Allow the instrument to warm up for as long as possible before using it When the signal generator is to remain idle for extended periods of time it should be stored in the transit case provided to keep moisture and dust from entering the cabinet and to prevent possible damage 2 7 OPERATING CONTROLS DIALS TERMINALS 2 8 The front panel operating controls dials and terminals for the TS 510 U and the TS 510A U are listed with their functions in Table hnd are shown in figures 2 1 2 2 2 3 and 2 4 Figure 2 1 shows the front panel layout for the TS 510 U figure 2 2 shows the front panel layout for the TS 510A U and figure 2 3 shows the front panel layout theTS 510A U A simple block diagram showing which circuits in the signal generator are affected by the various front panel controls is shown inffigure 2 4 2 9 TURNING ON THE EQUIPMENT 2 10 To place TS 510 U or TS 510A U Generator in operation proceed as follows Signal a With the power switch in OFF position connect the power cord to the signal generator and to a 115 volt a c power source The HEATER pilot lamp lights indicating that the internal space heaters are in operation Section Il NAVAER 16 30USM44 501 Table Controls and Terminals DESIGNATION FUNCTION 1 Power Receptacle Receives
46. tion after any extended shutdown or once a week while the equipment is kept in standby condition other items must be checked before the equipment is placed in operation after a shutdown during operation or after it is turned off as specified in the applicable paragraph b Maintenance Service and Inspection maintenance service and inspection charts pars 3 T 1 3 1 5 outline inspections to be made a specific intervals These inspections are made to determine combat serviceability that is to determine that the equipment is in good general physical condition in good operating condition and likely to remain combat serviceable assist operators in determining and maintaining combat serviceability the charts indicate what to inspect how to inspect and what the normal conditions are the references column lists the paragraph that contains additional information If the defect cannot be remedied by the operator higher echelon maintenance or repair is required Records and reports of these inspections must be made in accordance with TM 38 750 3 1 3 Maintenance Service and Inspection Periods Maintenance service and inspection of Signal Generators AN USM 44 and AN USM 44A is required daily and weekly and 3 1 5 specify the items to be inspected and serviced In addition to the routine services and inspections the equipment should be reinspected and serviced immediately before going on a mission
47. ttenuator set to 0 dbm or less The input impedance at the EXT MOD jack is approximately 50 000 ohms For external sine wave modulation proceed as follows NOTE When the modulation is Increased to very high percentages there may be a resulting shift in the reading on the OUTPUT VOLTS meter Reset the meter to SET LEVEL a Follow complete step by step procedure for obtaining CW operation b Set MOD SELECTOR to EXT MOD position c Connect modulating source to EXT MOD jack d Set MOD LEVEL control for desired degree of modulation as read on the PERCENT MODUL indicator e Subsequent changes may be made in frequency indicator and output attenuator settings while the instrument is being operated with modulation 2 17 SETTING THE TS 510 U TS 510A U FOR PULSE MODULATION 2 18 For pulse modulation a pulser generating positive pulses from 10 to 50 volts in amplitude must be connected through an appropriate cable CG 409 U for TS 510 U TS 510A U or 2429 for the TS 510A U to the EXT PULSE jack on the signal generator For pulse operation the signal generator produces essentially no r f output signal until an external positive pulse is applied to the EXT PULSE jack The resultant r f output pulse from the signal generator is of good quality at r f frequencies above 100 megacycles see The output pulse is free of transients and has low residual signal between pulses Any input pulse above 10 volts 5 volts for the T
48. ws a Following the warm up period described in set the MOD SELECTOR to C W b Select the desired band of frequencies with the FREQUENCY RANGE selector 15 c Set the MEGACYCLES indicator to the desired frequency d Set the OUTPUT LEVEL control to near maximum and adjust the AMP TRIMMER for maximum output as indicated on OUTPUT VOLTS meter e Connect the external load to the RF OUTPUT Jack on the signal generator CAUTION Do not apply an external r f or d c voltage at the RF OUTPUT jack on the signal generator To do so can burn out the impedance matching network in the output attenuator Special care must be taken when working with transceiver type apparatus such as the AN ARC 27 equipment to insure that the transmitter remains inoperative while the signal generator is connected to the equipment antenna Section Il NAVAER 16 30USM44 501 ser sevecr ADJUST AND READ ADJUST SET FREQUENCY RANGE X ES ADJUST awe TRIMMER READ E OUTPUT VOLTS RADIO FRE QUENCY OUTPUT e 5 MODUL ATOR EXT PULSE GENERATOR ATTENUATOR MODUL ATION ADJUST secr METER XTAL CAL GAIN Q o OFF 5uc AMPLIFIER PERCENT MODULATION READ INTERNAL MODUL ATION FREQUENCY OSCILLATOR CALIBRATOR XTAL CAL OUTPUT
49. yright Feel free to share republish sell and so on I am not asking you for donations fees or handouts If you can please provide a link to liberatedmanuals com so that free manuals come up first in search engines lt A HREF http www liberatedmanuals com gt Free Military and Government Manuals lt A gt Sincerely Igor Chudov http igor chudov com
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