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TM 9-2320-356-BD
24. Turn preset channel/continuous tune selector switch to the I or II position.
Position I is used if the operating frequency is between 20 and 35.75 MHz.
Position II is used if the operating frequency is between 25.8 and 51.5 MHz. Band
selection is shown by band indicator lights.
25. Rotate frequency tuning knob to the frequency listed that is the closest to the
operating frequency.
Band I:
22.050 MHz 28.350 MHz 34.650 MHz
Band II:
36.225 MHz 40.950 MHz 42.525 MHz 45.675 MHz 48.825 MHz
The frequencies are marked on the frequency dial with an extended graduation line
capped by an arrowhead.
26. Turn mode selector switch to the SBREC (receive only) position.
27. Press and hold tone call button.
A tone should be heard in the earphones.
28. Rotate frequency tuning knob.
The tone heard should progress from a high pitch
to a low pitch then to a high pitch again.
The proper setting is the point between
the high tones and the lowest pitch or when totally absent.
29. Note the positions of the index line and the frequency graduation line through
frequency dial viewing window.
30. Release tone call button.
31. Perform the following adjustment if the index line is not within one-fifth of a
graduation (5 KHz):
a.
Remove index line adjustment plug.
b.
Rotate the adjustment right and left with a screwdriver until the index line
is alined with the frequency graduation line.
c.
Replace index line adjustment plug.
32. Return mode selector switch to the SIMPL position (left).
33. Turn preset channel/continuous tune selector switch to position I or II.
34. Open preset locking screw access cover on the front panel.
35. Release the preset locking screw with the special key (not shown) attached to
the case of the radio by turning the screw 90 degrees counterclockwise. Use the
special key (not shown) attached to the case and turn preset locking screw 90
degrees counterclockwise.
36. Turn frequency tuning knob to the desired frequency.
37. Hold frequency tuning knob and turn preset locking screw clockwise with the
special key until the slot is pointed at the red dot.
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