TM 11-6625-3087-12
4. If an OFFSET is required,
Press OFFSET (20).
Enter offset value (18).
Press MEAS CONT (15),
NOTE
Do not change the units after offset has been entered.
5. On Level Meter, select desired sideband CHANNEL (10).
6. Tune the Level Meter to the input signal frequency as follows:
If the carrier frequency is to be used to tune the Level Meter to a message channel, press CARRIER (8), FREQ (22),
and enter the carrier frequency.
If the tone frequency is to be used to tune the Level Meter to a message channel, press TONE (9), FREQ (22), and
enter the tone frequency.
7. If an offset was entered in step 4, press OFFSET (6).
8. Verify FREQUENCY/ENTRY and MEASUREMENT/ENTRY indications are stable.
NOTE
Input signal modulation (AM or FM) may cause instability in either display.
If indications are unstable, proceed with step 11.
9. MEASUREMENT/ENTRY display (5) indicates input signal power level. FREQUENCY/ENTRY display (7) indicates
tuned carrier or tone frequency.
10. Tune the Level Meter to voice signals as follows:
Enter FREQ STEP of 1Hz.
Press MEAS CONT (15).
Increase AUDIO VOLUME (11).
Press FREQ STEP (12).
Using the FREQUENCY TUNE knob (14), slowly adjust for natural sound.
11. If MEASUREMENT/ENTRY display is unstable or constantly resets full scale level,
Press AVE (2). If display still unstable, turn AVE off.
Press ENTRY (1).
Press FULL SCALE (21), UP ARROW (17) or DOWN ARROW (16) then MEAS CONT (15) push buttons until
display is stable. Verify OVLD indicator (3) remains off.
NOTE
If OVLD indicator is on or "OL" appears in MEASUREMENT/ENTRY display, increase
full scale level. If "UL" appears in MEASUREMENT/ENTRY display, decrease full
scale level and/or select 100dB RANGE (25).
2-29
Previous Page
