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|  c. Procedure.
(3) With no signal input, operate the
(1) Rotate the SQUELCH control fully
MANUAL FREQUENCY TENS con-
clockwise.
trols from 22 to 39 and set the con-
(2) Adjust control R712 (fig. 49) until
trol to the position at which the
the CALL LIGHT lamp lights.
highest S-METER reading can be
(3) Decrease the TS-497/URR output
obtained.
signal level until the CALL LIGHT
(4) Connect the TS-497/URR to the
lamp goes off.
ANT. jack on the front panel
(4) Increase the TS-497/URR output
through the 6-db attenuator pad.
signal level until the CALL LIGHT
(5) Set the TS-497/URR to the same
lamp lights, and check for a 50-
frequency as indicated by the MAN-
microvolt setting on the TS-497/
UAL FREQUENCY controls. Read-
URR.
just the TS-497/URR frequency
(5) If the CALL LIGHT lamp lights at
slightly for a maximum reading on
a signal level lower or higher than
on the S-METER.
(6) Set the TS-497/URR output at 50
50 microvolt, repeat the proce-
dures in (2), (3), and (4) above.
microvolt.
181
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