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Transmitter Alignment
See Alignment Locations
SETTINGS
CONNECTION
ADJUST ADJUST FOR
Remove TP7-TP9 Jumper PCB.
TX Frequency:
Connect frequency counter
OffsetSet radio to CH 20 LSB TX to TP3
mode.
NOTE: If the radio has the clarifier
mod done skip this step.
VR7
16.50750 MHz ±20Hz.
AM OSC:
Set radio to CH 20 AM TX mode.
Connect frequency counter
to TP5
L23
10.69500 MHz ±20Hz.
USB OSC:
Connect frequency counter
Set radio to CH 20 USB TX mode. to TP6.
L24
10.69250 MHz ±20Hz.
LSB OSC:
Connect FC to TP6.
Set radio to CH 20 LSB TX mode.
L25
10.69750 MHz ±20Hz.
BIAS Current:
Set radio to CH 20
USB TX mode.
MOD off.
Connect current meter to
TP7(+) and TP9(-)
Connect current meter to
TP7(+) and TP8(-)
VR12
50 mA
VR10
100 mA
Replace TP7-TP9 Jumper PCB.
SSB APC:
Set radio to CH 20,
USB TX mode.
MOD off.
Connect Voltmeter to TP7.
SSB TX Power:
Set radio to CH 20,
Mike Gain max
USB TX mode.
AF signal 30 mV, 1 KHz to
microphone.
Connect RF power meter to L40, L42, Adjust for max. power with
antenna jack. AF SG to
L43, L44 min. spurious emission
microphone.
SSB ALC:
Audio signal 30 mV, 1 KHz to
microphone.Set radio to CH 20,
USB TX mode.
Connect wattmeter to ANT
output. Set RF Power
control fully clockwise.
VR13
Adjust for 12 Watts output
SSB Carrier:
BalanceSet radio to CH 20, USB
TX mode. Mic Gain off.
Connect wattmeter to ANT
output.
Connect scope to Antenna
Connector.
VR6
Spurious Emission To
Minimum.
AM TX Power:
Set radio to CH 20 AM TX mode.
No MOD.
Connect wattmeter to ANT
output. Set RF Power
control fully clockwise.
VR14
Adjust for 4.0 watts
Then set RF Power control
fully counter clockwise
VR18
Adjust for 1.0 watts
Connect wattmeter to ANT
output.
VR9
Adjust RF Power meter to
"4" on PWR scale.
RF Power Meter:
Set radio to CH 20 AM TX mode.
VR17
DC12.5V
L40, L42 Balance Power Between
CH 1 and CH 40.
Mod off.
AM Modulation:
Set radio to CH 20 TX mode.
Audio signal 30 mV, 1 KHz to
microphone.
Set Mic Gain Fully Clockwise.
Connect AF SG to
microphone input.
VR16
Adjust for total 100%
modulation
Modulation Meter Adjust:
Set Meter mode switch to MOD.
Set radio to CH 20 TX mode.
Audio signal 30 mV, 1 KHz to
microphone.
Set Mic Gain Fully Clockwise.
Connect AF SG to
microphone input.
VR15
Adjust for 100% on radio's
modulation meter.
PLL Alignment
See Alignment Locations
SETTINGS
CONNECTION
ADJUST ADJUST FOR
VCO:
Disconnect the "short PCB"
from TP7, TP8 and TP9.
Set radio to CH 20 AM RX
mode. Clarifier setting in 12
o'clock.
Connect FC to IC3 Pin 8
VC1
Connect DVM to TP2.
L14
Adjust for 10.24000MHz
±20Hz.
Adjust for 3.0 VDC ±0.1
Connect Oscope to TP3
L15
Adjust for max.
AM Frequency:
Set radio to CH 20 AM RX
mode.
Connect frequency
counter to TP3.
L20
16.51000 MHz ±20Hz.
USB Freq:
Connect frequency
Set radio to CH 20 USB mode. counter to TP3.
L21
16.51250 MHz ±20Hz.
LSB Freq:
Set radio to CH 20 LSB mode.
L22
16.50750 MHz ±20Hz.
Connect frequency
counter to TP3.
FREQUENCY COUNTER:
Set mode to AM RX
CH. 20
VC1 on Adjust VC1 on counter PCB
Counter for correct reading on display.
PCB
Transmitter Alignment
See Alignment Locations
SETTINGS
CONNECTION
ADJUST ADJUST FOR
Remove TP7-TP9 Jumper PCB.
TX Frequency:
Connect frequency counter
OffsetSet radio to CH 20 LSB TX to TP3
mode.
NOTE: If the radio has the clarifier
mod done skip this step.
VR7
16.50750 MHz ±20Hz.
AM OSC:
Set radio to CH 20 AM TX mode.
Connect frequency counter
to TP5
L23
10.69500 MHz ±20Hz.
USB OSC:
Connect frequency counter
Set radio to CH 20 USB TX mode. to TP6.
L24
10.69250 MHz ±20Hz.
LSB OSC:
Connect FC to TP6.
Set radio to CH 20 LSB TX mode.
L25
10.69750 MHz ±20Hz.
BIAS Current:
Set radio to CH 20
USB TX mode.
MOD off.
Connect current meter to
TP7(+) and TP9(-)
Connect current meter to
TP7(+) and TP8(-)
VR12
50 mA
VR10
100 mA
Replace TP7-TP9 Jumper PCB.
SSB APC:
Set radio to CH 20,
Connect Voltmeter to TP7.
VR17
DC12.5V
USB TX mode.
MOD off.
SSB TX Power:
Set radio to CH 20,
Mike Gain max
USB TX mode.
AF signal 30 mV, 1 KHz to
microphone.
Connect RF power meter to L40, L42, Adjust for max. power with
antenna jack. AF SG to
L43, L44 min. spurious emission
microphone.
SSB ALC:
Audio signal 30 mV, 1 KHz to
microphone.Set radio to CH 20,
USB TX mode.
Connect wattmeter to ANT
output. Set RF Power
control fully clockwise.
VR13
Adjust for 12 Watts output
SSB Carrier:
BalanceSet radio to CH 20, USB
TX mode. Mic Gain off.
Connect wattmeter to ANT
output.
Connect scope to Antenna
Connector.
VR6
Spurious Emission To
Minimum.
AM TX Power:
Set radio to CH 20 AM TX mode.
No MOD.
Connect wattmeter to ANT
output. Set RF Power
control fully clockwise.
VR14
Adjust for 4.0 watts
Then set RF Power control
fully counter clockwise
VR18
Adjust for 1.0 watts
RF Power Meter:
Set radio to CH 20 AM TX mode.
Mod off.
Connect wattmeter to ANT
output.
VR9
Adjust RF Power meter to
"4" on PWR scale.
AM Modulation:
Set radio to CH 20 TX mode.
Audio signal 30 mV, 1 KHz to
microphone.
Set Mic Gain Fully Clockwise.
Connect AF SG to
microphone input.
VR16
Adjust for total 100%
modulation
Modulation Meter Adjust:
Set Meter mode switch to MOD.
Set radio to CH 20 TX mode.
Audio signal 30 mV, 1 KHz to
microphone.
Set Mic Gain Fully Clockwise.
Connect AF SG to
microphone input.
VR15
Adjust for 100% on radio's
modulation meter.
L40, L42 Balance Power Between
CH 1 and CH 40.
Receiver Alignment
See Alignment Locations
SETTINGS
CONNECTION
ADJUST ADJUST FOR
AM Sensitivity:
Set radio to CH 19 AM RX MODE.Clarifier
setting at 12 o'clock.RF Gain fully
clockwise, SQ fully counter clockwise. VOL
control at 2 o'clock. Output Frequency
27.185 MHz, MOD 30%.
Connect AF VTVM or
scope across speaker
terminals.
Connect RF SG to
antenna jack
(in order) Audio output > 2V@10dB
L2, L3, S/N. Balance between CH
L5, L6, 1 and CH 40
L7, L8,
L9, L10
L6, L7
USB Sensitivity:
Same as above
Set radio to CH 19 USB mode.VOL control
fully clockwise.RF SG setting to 27.186
MHz @ 0.5 uVMOD to off
L11, L12 Audio output > 2VS/N 10
dB
LSB Sensitivity:
Connect AF VTVM or
Set radio to CH 19 LSB mode.VOL control scope to IC2 Pin 7.
fully clockwise.RF SG setting to 27.184
MHz @ 0.5 uVMOD to off
RF Generator to ANT
Jack
L11, L12 Adjust for maximum audio
output.
NB Adjust:
Set radio to CH 20 AM mode
RF SG setting 27.215 MHz @ 1000uV
MOD 30%, NB/ANL switch on.
Connect Voltmeter to
TP1
L1
DC voltage to max.(>2.0V)
AM Squelch:
Set radio to CH 19 AM mode
SQ control fully clockwise.
RF SG setting 10 mV, MOD 30%
VR4
Adjust very slowly until
squelch just closes
SSB Squelch:
Set radio to CH 19 USB mode.SQ control
fully clockwise.RF SG setting 10 mV
VR3
Adjust very slowly until
squelch just closes
AM S-Meter:
Set radio to CH 19 AM mode. Meter switch
at S/RF position. RF SG setting to 27.185
MHz @ 100 uVMOD 30%,
VR1
Adjust needle on S-Meter to
"9" on the S scale
SSB S-Meter:
Set radio to CH 19 USB mode.S/RF switch
at S/RF position.RF SG setting 27.186
Mhz, MOD off 100 uV
VR2
Adjust needle on S-Meter to
"9" on the S scale
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