UNIDEN 2020
Sid 5 (26)
2-3. Tuning Coil Alignment
(1) Connect SSG output and mV as 2-2 (1), (2).
(2) Set PRESELECT CONTROL to center position.
(3) Select BAND SWITCH and SEGMENT SWITCH in order, starting from
15.0 MHz according to the chart 2-2-1-A, and also provide listed frequency
signals (unmodulated 40 dB) from SSG as show in the chart 2-2-1-B and recive
them by tuning the main dial.
(4) Get maximum S-Meter or mV readings by adjusting tuning coils as indicated
(L201 – L213) on each band.
(5) Control SSG output during this process to make adjustment easier.
Chart 2-2-1
A B C
BAND SEGMENT FREQ. (MHz) COIL No.
15.0 0/500 15.000 L201, L208
3.5 100/600 3.600 L202, L209
7.0 100/600 7.100 L203, L210
14.0 200/700 14.200 L204, L211
21.0 200/700 21.200 L205, L212
28.5 0/500 28.500 L206, L213
2-4. IF Tuning Coil Alignment.
(1) Connect SSG and mV as 2-2 (1), (2)
(2) Set BAND SWITCH to 14.0, and SEGMENT SWITCH to 200/700.
(3) Provide 40 dB of 14.200 MHz unmodulated signal from SSG.
(4) Tune the main dial and receive the input signal, then control PRESELECT
knob to get maximum output readings.
(5) Adjust L214 – L218 so as to get the maximum readings on S-Meter or mV.
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