TP
Injection Test
Point
②
Product Detector
Input
③
2
nd
IF Amp Input
④
1
st
IF Amp Input
⑤
2
nd
RX Mixer Input
⑥
1
st
RX Mixer Input
⑦
RF Amplifier Input
⑧
Antenna
Table 2. RF and IF Stages Expected Signal Levels
Notes:
1. Adjust the Frequency dial for maximum signal
2. Adjust the Frequency dial and Preselector control for maximum signal
3. Expected values are simply a guide based on the average values observed in several rigs
and are not based on any published specification
Signal Level Measurements
Input Signal
Injection
Injection Point
Frequency
V13 pin 8
3,395 KHz
V4 pin 1
3,395 KHz
V3 pin 1
3,395 KHz
V12 pin 2
3,395 KHz
8,695 KHz
V11 pin 1
8,695 KHz
3,700 KHz
V10 pin 1
3,700 KHz
Antenna Jack
3,700 KHz
7,200 KHz
14,200 KHz
21,200 KHz
28,200 KHz
28,700 KHz
29,200 KHz
29,700 KHz
Expected Input
for 2 VAC at top
of AF Gain Pot
-8 dBm
-26 dBm
-61 dBm
-66 dBm
(1)
-64 dBm
(1)
-65 dBm
(1)
-57 dBm
(2)
-78 dBm
(2)
-85 dBm
(2)
-80 dBm
(2)
-87 dBm
(2)
-87 dBm
(2)
-82 dBm
(2)
-82 dBm
(2)
-83 dBm
(2)
-82 dBm
Measured Input
for 2 VAC at top
of AF Gain Pot
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