Motorola HF-SSB Manuel d'instructions

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@ MOTOROLA INC.
Communications
Group
MOTOROLA HF.SSB
Automatic Antenna Tuner
Models T1961A and T1962A
Installation Procedure
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1. INTRODUCTION
(Referto Figure 1.)
1.1 Motorola HF-SSB Automatic Antenna Tuners,
Models T1961A and TI962A, are antenna match-
ing networks rated at 125 watts peak-envelope-power
(PEP). Model T1961A Antenna Tuner matches the im-
pedance of an end-fed antenna (vertical whip or random
length wire) into a nominal 50-ohm impedance source
with a frequency range from 2-to-18 MHz. Model
T1962A Antenna Tuner performs the same impedance
match, but it can be used only with a 23' whip antenna
and at a frequency range from 2-to-9 MHz.
1.2 AutomatiC tuning is accomplished through
microprocessor control of reed relays that switch
inductors and capacitors in and out of the matching net-
work. The balance of this installation procedure
describes preinstallation instructions, installation in-
structions and ground systems for the radio and the
antenna tuner.
FAEPS-3000S-0
"5381
Figure 1. AutomaticAntenna Tuner
.2. PREINSTALLA TION INSTRUCTIONS
2.1 TUNE POWER ADJUSTMENT
....
, "7 CAUTION
The following adjustments to the
TRITON 20 or TRITON 12 and 24 chan-
nel radios must be performed before mak-
ing electrical connections to the antenna
tuner.
2.1.1 TRITON 20 Adjustment
Step 1. In the TRITON 20 instruction manual
(68P81044E20), refer to the TRN4038A Power
Amplifier circuit board overlay and schematic.
Step 2. With the radio in the TUNE MODE, adjust
potentiometer R441 for 3 watts :t 1 watt of power out-
put into a 50-ohm resistive load.'
2.1.2 TRITON 12 and 24 Channel Adjustment
Step 1. In the TRITON 12 and 24 channel radio in-
struction manuals (68P81O30E35 and 68P81O34EO5),
refer to the TLN1752A Power Amplifier circuit board
overlay and schematic diagram.
Step 2. With the radio in the TUNE MODE, adjust
potentiometer R41 for 3 watts :t 1watt of power output
into a 50-ohm resistive load.
@ Motorola, Inc. 1979
All Rights Reserved
Printed in U.S.A.
It@@jfn(fi)fi@@11Wff fiU:Ji(fi)~g@{f\VJfi~
1301 E.Algonquin Road, Schaumburg, II.60196
68P81110E64-0
5/15/SD-PHI
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Résumé du contenu

Page 1 - @ MOTOROLA INC

@ MOTOROLA INC.CommunicationsGroupMOTOROLA HF.SSBAutomatic Antenna TunerModels T1961A and T1962AInstallation Procedure~!tt~~~£~J*it~t!%;tit1~i~rJit*{{

Page 2 - ""8

3.PRE-OPERATIONAL CHECKthe radio system (with the antenna being replaced by anantenna simulator circuit). The recommended set-up isshown in Figure 2.3

Page 3 - .- ..'0""

3.3 Circuits for construction of the antenna simulatorare shown in Figures 4 through 6.-"~}NOTEFigures 4 and 5 apply only for 23 to 60foot antenn

Page 4 - (Refer to Figure8.)

4.2.2 If the equipment surfaces are dirty, wash the ex-ternal surfaces with mild soap and water using aclean cloth. Be careful not to allow the electr

Page 5 - ,. -J .LREW

the channel selection knob. If channel change is in-itiated by the A/B button, the tune line circuit is used to<'1 initiate the tuning sequenc

Page 6 - 4. GROUND SYSTEMS

microcomputer memory and begins the termination oftuning sequence.5.4.6 Termination of Tuning SequenceU8-33 goes high to allow the radio to revert tot

Page 7 - ~~"'-l

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Page 8 - ~ j ~' "

TROUBLESHOOT VSWRDETECTOR CI RCUITCHECK SWITCHEDA+ CIRCUIT INRADIOREPLACE FUSETROUBLESHOOTVOLTAGE REGULATORCIRCUITSCHECK CHANNELCHANGE CI RCUITIN RADI

Page 9 - .TLA II 02A Tuner

OESNOTTUNING:E WHEN-jANNELiED AND4:1CTPA'HANNELJNNECTION10NOTHEPA'CHANNELLINE (BLUIOLTAGE3,34,38NO'NELCHANGE)PERA TING:HECK/NEL'CU

Page 10 - GAEPS-31085-0 j

.----- -------\\\\-----<UO\: \I \\\IIIIIIlIIIjI)///""// j/" /V\ KI2(NOTEIIKI3INOTEIII.,. K"~OTE "L29------/- --- --- -- -

Page 11 - 900 UHOHMS

SWITCHED A+PA D'SABLE/CHANNEL CHANGEA NT TUNENOTCONNECTEDlard Detail andUst and'-3lJOO-A;- --- - - -- - --- -.. -. -- -- ".-- --- -.- -

Page 12

2.2RADIO MODIFICATIONS2.2.1 The TRITON 20 and TRITON 12 and 24 chan-nel radios require circuitry modification if (heywere built before July 1, 1980. T

Page 13 - - 5.4.1 Power Applied

. -"'-.PHASE DETECTORRr{INPUTO.ZV TO 1.0VP'p T-*-j\!\!\,NOTE5.IC169 -.os I.J.U.ovWAVEFORM AT U2.13 HAS SAME PHASE AS RFINpUT CURRENT. O

Page 14 - 0""""

DURING CAP PHASEU6-9, 3.2 VU6-&4.' VDURmG IND PHASEU6-9,4.' VU6-8' 3.2 VPUTS ARE APPLIED TO U6D.ow IF RF INPUT PHASE ISJUTPUT IS HI

Page 15

D.' V "ELA Y CLOSED13.' V "ELA Y OPENES~ A'C9Sr-IC9l2SDPr~ ~2S'1- --:1 E, 1<3,'ti~ -1- ~ ~ - TP.>,~tP6ITALI&q

Page 16 - - DISCONNECTING EITHER

J'.JI .vP/O TRNS229ATRNS867ATRNS66SARSlaF :JOCOO-O'.SAOIFigure4.TRITON 12and 24 ChannelMain CircuitBoardModificationsCATHODE OF CR41' «

Page 17 - CIRCUIT IN

3.2 LOCATION(Refer to Figure8.)Selection of a location for the antenna tunershould be such that it is as close to the antenna as possi-ble. Long "

Page 18 - - --- --- -- - - - - J

(;(),;--Table 3. Control Cable Parts ListStep 1. Assemble the control cable as illustrated inFigure 10and as directed in Figure 11.Step 2. Insert the

Page 19 - RF BOARD CIRCUIT BOARD

,.R.F.COAX-~MOUNTING~SCREWGAEPS-30071-OFigure12.Electrical and Mechanical ConnectionsStep 4. Route and connect the solder lugs of the con-trol cable a

Page 20 - 1:.05 TO

ANTENNA.COPl'ERSCREENANTENNA TUNERBULKHEADFEED- THRUINSULATOR"\)~}METALWATERTANKGROUND PLATE7GBEPS-30016--D'7Figure 14.Ground System on

Page 21 - : '8L H

. . '!. ~ j ~' "J~ A=c== : - - a ~m - ftQ1;00--1---~--' i , 12I f~' L 7<-4 12GBEPS-:JO103-05 5 3Figure 16. Control Cable P

Page 22 - ~ -1- ~ ~ - TP

/'~$@ MOTOROLA INC.CommunicationsGroupMOTOROLA HF-SSBAUTOMATIC ANTENNA TUNERMODELS T1959A, T1961A, T1962A1.DESCRIPTION1.1 Motorola HF-SSB automat

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