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Страница 1: ...0 TRAN MITTE 2 DESCRIPTION AND The Hammarlund Manufacturing Co Inc 460 W t 34th Street New York 1 N Y Interna lonal Dlvl lon 13 East 40th Street New Vork 16 Y FREE DOWNLOAD COURTESY OF N9SOR WWW HAMMA...
Страница 2: ...ial and workmanship in this receiver the warranty card must be filled out and mailed within two weeks of purchase Please refer to serial number of equipment in correspond ence and refer to ins ide boc...
Страница 3: ...suppressed to a level of 50 db or more The intermodulation distortion products have been suppressed beyond the 30 db level The transmitter output pi network has been care fully designed to match a 52...
Страница 4: ...elay Adjustment 4 R F Level Control 14 FSK FM N Adjustment 5 Final Amplifier Tuning Control 15 Anti Trip Sensitivity Adjustment 6 Function Switch Selector Type of Transmission 16 VOX Sensitivity Adjus...
Страница 5: ...rovided in the patch Page 4 117 VOLT POWER CONNECTION Before inserting the line cord plug into the power outlet make certain that the power source is of the proper voltage and frequency The Model HX 5...
Страница 6: ...WITH MATCHED LOAD AN 0 IN OSB MOX POSITION EXTERNAL 1 7 13 2 3 4 5 6 8 9 10 II 12 14 WIRING CONNECTIONS FUNCTION GROUND NORMALLY OPEN CONTACT CENTER CONTACT R Y NORMALLY CLOSED CONTACT 100 V IOOV FOR...
Страница 7: ...uit to the receiver input via the Antenna Relay wiring R F LEVEL The RF Level control adjusts the gain of the 5 55 to 6 05 Mcs broadband amplifier Optimum RF output on all bands is achieved with the a...
Страница 8: ...oss the band There are several other frequency determining elements which also contribute to the dial inaccuracies such as VFO tuning capacitor and crystal tolerances As shipped from the factory the 0...
Страница 9: ...ion receiver and speaker are connected for VOX operation see Figure 2 the speaker Anti Trip control is adjusted to a setting where the audio signa picked up by the microphone from the re ceiver s spea...
Страница 10: ...ROL ADJUSTMENT The output of the bias supply in the transmitter DEV FOR REMOTE KEY 40 CYCLE FSK CONNECTION OPTIONAL L has been set at the factory to 50 volts d c with 117 volts a c power line input If...
Страница 11: ...uit of this tube is connected in parallel with the 60 kcs oscillator tank circuit and acts as a shunt inductance and would raise the resonant frequency were it not for Capacitor C 110 which compensate...
Страница 12: ...tors operate on the low side of the signal frequency the third mixers heterodyne oscil lator operates on the high side of the signal fre quency This effectively inverts the sideband posi tion with res...
Страница 13: ...ve or standby modes the signal does not pass beyond this stage Closing the telegraph key or operation of the VOX relay during Page 12 vOlce transmission removes this negative bias and permits the sign...
Страница 14: ...TROL ALC Part of the output of the final amplifier is coupled to the automatic level control ALC circuit by means of capacitor C 170 This signal is then recti fied by one of the 6AL5 diode sections V...
Страница 15: ...lso powers the 1147 pilot lights DSl 2 3 and 4 One section of a 6AL5 V 17A acts as the bias rectifier whose output is controlled by a voltage divider network consisting of R 134 R 135 and the BIAS ADJ...
Страница 16: ...ified Slock Diagram VI7 6AL50 V21 CDO OA20 000 VI8 IZA FAN REC VI9o VI6 6146 81 1 A A DJ o 6V C 04 o JIZAoX4GTB VI500 6146 FSK DEV V3 JI D Dr IN P U T TRIM D DODB T IZV 70 o 0 o DoDO DO ie O 0 U 00 V7...
Страница 17: ...r tuned to 600 KCS The receiver should be accurately set on frequency with a 100 KCS crystal calibrator that has been checked against a known standard such as station WWV 2 Carefully adjust the 60 KCS...
Страница 18: ...BIAS DEV 2 u T9 _ TI5 10M RI36 ADJ RI40 FSK TI3 40M TI2 BOM l l III 1l OQ Figure 6 Top View of the HX SOO TransmiHer Chassis H V Cover Removed l FREE DOWNLOAD COURTESY OF N9SOR WWW HAMMARLUND ORG...
Страница 19: ...ximum on the x mitter level indicator Remove resistor from secondary of 1 11 and connect across primary Peak top slug of 1 11 for maximum Repeat above procedure for 1 10 Page 18 11 Tune up transmi tte...
Страница 20: ...0 40M EW _ CI39 80M C58 L17 VFO i CI28 80M COIL CI29 40M CII3 80M CI20 JaM 11 CI14 40M CI19 10M I CI15 20M CI18 10M L _ I CI16 15M CI17 10M tJ III Q Figure 7 Bottom View of the HX 500 Transmitter Chas...
Страница 21: ...ne for maximum on MI Adjust top slug of T13 for maximum indication The output may be checked at this frequency by following the procedure outlined in step 15 22 Rotate Band Selector to 80M and set sig...
Страница 22: ...50 KCS JI L7 OUTPUT 1650 KCS L8 L6 L9 F ZI 1iMIII TRAP T2 i L4 ito L5 L3 f1 TI F _ n I lJ 5 55 6 05 Z2 5 5 MCS TOP 6 15 MCS BOTTOM T7 WI VFO TRIM R86 RES BAL BIFILAR C92 T6 1650 KCS J7 OUTPUT 5 55 6 0...
Страница 23: ...ONS SWITCH ON OFF IDITU8E SOCKETS AND LOCATIONS ARE IN BOTTOM VIEW ZO OOO SHOWN OHM v II VARIES WITH POSITION OF vox SENS CONTROL IZ VARIES WITH POSITION OF AUOIO LEVEL CONTROL 3 VARIES WITH POSITION...
Страница 24: ...N BOTTOM VIEW lEI LINE VOLTAGE 117 V AC ZE RO IN PUT SIGNAL NOTES iiivAR ES WITH POSITION OF VOX SENS CONTROL 2 VARIES WITH POSITION OF AUDIO LEVEL CONTROL 13 VARIES WITH POSITION OF VOX DELAY CONTROL...
Страница 25: ...when adjustments are made che ck to see if C149 neutrali z ing capacitor is set at about half capac ity 90 degree rotation from maXImum capacity then repeat step L 3 Turn OFF power and remove V18 and...
Страница 26: ...f L23 and bottom slug of T12 for maximum on M1 17 Set signal generator to 4 15 MCS Rotate DRI VER TUNE to minimum capacity and FINAL TUNE for maximum indication on Ml below 10 DB Adjust C139 and C128...
Страница 27: ...cy Knob clockwise until the stop position is resched The dial drum will then be in the position as shown in Figure Hook spring itA in Hole 1 and wind cable c10ckwlse around drt1 M almost two 2 turns T...
Страница 28: ...ot to overload the receiver or an S meter indication of S7 to S9 4 Tune HQ 180 to 1590 KCS Adjust top slug of T3 for minimum indication on HQ 180 level meter Tune receiver to 1650 KCS and readjust bot...
Страница 29: ...HP 400C will read 6 db and will read lower as the frequency is increased beyond 62 400 KCS Page 28 14 Rotate Function switch to USB Find the frequency of maximum output between 57 600 and 59 700 KCS T...
Страница 30: ...the Exciter chassis Pairing of the with 100 KCS calibrator on Tune VFO to 3 95 VFO and the Exciter is to be preferred and units MCS on 80 M band as indicated by the dial aligned together should be pla...
Страница 31: ...obtain a strong beat note in the receiver Tune HX 500 and receiver to exactly 3 5 mcs again making sure the HX 500 scale pointer and Frequency KCS dial are on 3 5 MCS and 0 respectively Adjust C92 for...
Страница 32: ...microphone Observe the RF signal on the oscilloscope 8 Rotate Function switch FSK and Opera tions switch to CAL Tune receiver to 3 75 mcs and set receiver BFO to zero beat with 3 75 mcs signal from H...
Страница 33: ...4452 G43 C150 C151 C154 Variable Air Final Tune Fixed Silver Mica 330 mmi M4ll2 G32 K23071 321 C152 C153 Fixed Silver Mica 270 mmi Fixed Silver Mica 220 mmi K23071 319 K23071 318 C157 Fixed Silver Mic...
Страница 34: ...RT NO RESISTORS 11 10 K19310 49 w 10 K19310 25 Parasitic Choke L27 L28 ALe ADJ K15380 4 1 2 11 10 K19309 65 1 2 w 10 K19309 129 w 10 K19339 2 11 10 K19339 3 1 11 10 K19310 53 1 11 10 K19310 73 11 10 K...
Страница 35: ...lver Mica 33 mmf 500 W V D C Fixed Silver Mica 50 mmf 500 W V D C Fixed Silver Mica 15 mmf 500 W V D C Fixed Silver Mica 2 mmf 500 W V D C Fixed Silver Mica 47 mmf 300 W V D C Fixed Ceramic Disc 005 m...
Страница 36: ...h Wafer Funct ion SF 1C Switch Wafer Function SF 1D Switch Wafer Function SF 1E Switch Wafer Function SO 2A Switch Wafer Operat ions SO 2B Switch Power ON OFF Part Tr ansformer 60 Kcs Transformer 60 K...
Страница 37: ...f 1000 W V D C K23010 32 L13 L14 L15 L16 L17 Z2 COILS Ind uct or Filament K42354 1 R F Choke 1 0 millihenry K15629 3 R F Choke 180 microhenries K15629 4 Coil Ass emb ly Adjustable VFO K42331 G1 Trap C...
Страница 38: ...0 Rt51 1000 2 8 1 1 B6 r JUF Rl4 CI87 IUF J Ol UF C UF 330 I CI50 I 325 I rF i NALl el54 I 330 CKlO S PPLY o _OT _LL TIO 2 Figure J3 Schematk Diagram of the HX 500 Transmitter Issue J 6 3V AC FILAMENT...
Страница 39: ...0 500 CI65 40 UF 500 350 1 L41 B HYS RI32 250n 50V 780V 220 5W CI66A 40UF 45011 1001 L40 VIB 4 13 HYS 12AX4GTB 160 11 V RE CT iif C f f POWER TRANS PRI AC UNE r SHIELD JI3 BlK FAN REC NOTES L ALL CAP...
Страница 40: ...i C9 io fj 7 L J IN634 RS I I I I I I 9 2 o2 1 I I I I 1 MEG RIO ce l I 60 jK_ J i 1 1 C3 R4 K __ J __ J 100 UIF f L_ J t 7 8 tK I 47K I J3 Jill U J4 RGO ill r O C lMONlTOR R61 300V II JI2 4700 I All...
Страница 41: ...RII8 L34 CI44 IK IW 2 5MH 005 1 4 6 UF L29 RJi9 100 IOO IW 2W CI37 RI22 0IUF CI47 3 100 1000 5 IW l 1 4 6 VI6 CI41 6146 liD FINAL AMP C 3 3 J I IUF O UF C142 CI87 F 6 6 25 10 IUF 5 UF SB 3FIRfAR II _...
Страница 42: ...0 FRONT PANEL CONTROLS AND INPUTS 4 FRONT PANEL S Y CONTROLS REAR APRON COI S 8 ADJUSTMENTS T si F _ g SMN HBg rCTc Mq 5C OL 00 EQUAL 7 P2 AND Jll SHOWN L G SOE TO WHICH WIRES ARE CONNECTE RII2 ir e _...
Страница 43: ...A V7 B 12AX1 V5 A V5 B 6ALS ANTI I AUO C47 2 ND AUQ C4 VS A 31l TAUQMOo r VOX C5I VOX 0l00E 0100 R3I 47K I 01 R33 000 R43 UF R3S R42 5K IME R34 47QK 2 I 220 0 U J4 R60 K 1000 MEG K c 5W 0 ill MEG 3 R...
Страница 44: ...med to be covered by th ufacturer sstandard warranty applicabl thereto and such items shall b and are hereby excluded froln the provisions of this warranty Pilot lamps and fuses are not guaranteed for...
Страница 45: ...ESTABLISHED J9JO APD 311 ISSUE NO 1 FREE DOWNLOAD COURTESY OF N9SOR WWW HAMMARLUND ORG...
