Realistic TRC-457 - RECEIVER ALIGNMENT; RECEIVER ALIGNMENT (AM); RECEIVER ALIGNMENT (SSB); RECEIVER ADJUSTMENTS

maximum RF.
33.855MHz +20Hz.
!.00 volts.
I
laximum RF.
I
.765MHz.
annels ,
hart for
uencies)
.
76 75MHz.
mnels.
iart for A
lencies) .
.7625MHz.
:quencies.
Lart for
~encies) .
OMHz .
nnels.
art for
encies)
.
RECEIVER ALIGNMENT
Connect an AC VWhI or AF wattmeter across speaker voice coil.
Adjust volume control to obtain a suitable indication.
Set generator output low enough to prevent AGC
limiting.
RF GAIN Maximum, CLARIFIER
0, Squelch MINIMUM, NB Off, ANL Off.
1 TEST EQUIPMENT ( TRANSCEIVER I ADJUST I REMARKS 1
--
Output of signal generator thru
.OluF to TP13 (FET1, G1)
7.8MHz, lOOOHz @ 30% modulation.
Output of signal generator thru
.OluF to antenna jack.
27.185MHz, lOOOHz @ 30% modulation
Inject a
lOOpps, luSec signal at
MIC input.
Input of oscillosope to
TP5.
Ch. 19, AM
Ch. 19, AM
NB On
Adjust for maximum output.
Adjust for maximum output.
If necessary readjust
L5,
L6, L7, and L8.
Adjust for maximum.
RECEIVER ALIGNMENT
Connect an AC VTVEl or AF wattmeter across speaker voice coil.
Adjust volume control to obtain a suitable indication.
RF
GAIN Maximum, Clarifier 0, Squelch MINIMUM, ANL Off, NB Off, Volume Maximum.
I I
SSB
TEST EQUIPMENT
Output of signal generator thru
.OluF to antenna jack.
27.186MHz no modulation.
Output
.25uV.
TRANSCEIVER ADJUST REMARKS
Ch. 19, USB CT1
RECEIVER ADJUSTMENTS
Connect an AC VTVM or AF wattmeter across speaker voice coil.
Adjust
volume control to obtain a suitable indication.
RF GAIN Maximum, Clarifier
0, Squelch MINIMUM, NB Off, ANL Off.
TEST EQUIPMENT
1 TRANSCEIVER 1 ADJUST 1
REMARKS
Output of signal generator thru
. OluF to antenna jack.
27.185MHz, lOOOHz @ 30%
modulation.
Output
.5uV.
Output of signal generator thru
.OluF to antenna jack.
27.185MHz, lOOOHz @ 30% modulation
Output
50uV.
Output of signal generator thru
.OluF to antenna jack.
27.185MIIz, lOOOHz @ 30% modulation
Output
1000uV.
Ch. 19, AM
VOLUME Maximum
Ch. 19,
AM
RF GAIN MINIMUM
SQUELCH Maximum
I
Ch. 19, AM
Squelch Maximum
Output
100uV.
Output of signal generator thru
,OluF to antenna jack.
27.185MHz, lOOOHz @ 30% modulation.
AM RX GAIN
Adjust for 2 volts audio.
Ch. 19,
AM
SQUELCH RANGE
Adjust so that squelch
just breaks.
SIGNAL METER
Adjust for 9 on SIGNAL
scale of meter.