TM 11-6625-3087-12
CONTROL, INDICATOR,
FUNCTION
OR CONNECTOR
KEY
16
AVE push button
Five level measurements of the input signal power level are taken and then
averaged. Analog meter or MEASUREMENT/ENTRY then displays new value.
Used when readings in the measurement display and analog meter are erratic.
When in use, push button lights. Push for on and push again for off.
17
SCALE indicator
I n d i c a t e s Level Meter is ready to store a full scale value.
MEASUREMENT/ENTRY displays value. Lights when full scale is used.
ENTRY push button
18
Used to manually enter full scale value. Value entered must be higher than the
input signal level or an overload will exist. When in use, push button lights,
Push for on.
AUTO push button
Tells Level Meter to automatically select full scale value for best signal to noise
19
ratio without overloading. When required, Level Meter will autorange to find
new full scale value. When in use, push button lights. Push for on.
20
100dB push button
Selects entire Level Meter operating range (80dB) for use in input signal
detection. Any signal level between full scale and 80dB below full scale can be
Use 100dB scale on analog meter when selected.
measured.
MEASUREMENT/ENTRY resolution is 0.1dB. When in use, push button
lights. Push for on.
10dB push button
21
Selects most linear 10dB region of Level Meter operating range (80dB) for use in
detection of input signals. Any signal level between full scale and 10dB below
full scale can be measured. Use 10dB scale on analog meter when selected.
MEASUREMENT/ENTRY resolution is 0.01dB. This selection cannot be used
in wideband and impulse measurement modes. When in use, push button lights.
Push for on.
AUTO CAL push button
22
Tells Level Meter to automatically calibrate all ranges and bandwidths of the
internal circuitry. When off, the data stored during the last calibration is used to
correct the signal being measured. Inoperable in phase jitter and impulse
measurement modes. When in use, push button lights. Push for on and push -
again for off.
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