Receiver Interstage Transformers - Yaesu FT-2200 Technical Supplement

Receiver Interstage Transformers
Receiver
Set up the test equipment as shown below
for receiver alignment.
Receiver Alignment Setup
13.8V DC
Power Supply
Speaker or
4-ohm load resistor
SINAD Meter
Oscilloscope
AF Millivoltmeter
Interstage Transformers
RF Signal
Generator
0 Connect a DC Voltmeter between test point
TP1003 on the Main Unit and chassis
ground.
Receiver Alignment Points
0 Tune the transceiver and RF signal gener-
ator to 146.000 MHz and inject a signal
modulated with +3.5 kHz deviation of a 1
kHz tone.
0 Adjust T1002 through T1007 on the Main
Unit for optimum indication on the meter.
0 Confirm at least -7.5
dB~
for 12 dB SIN AD at
high and low band edges.
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FT-2200 Tecllnical Supplement