TM 11-6625-3087-12
2 - 9 . OPERATING PROCEDURES.
The operating procedures for the Level Meter are broken down into ten individual measurement modes. See table 2-3 for the
measurement mode required to perform the desired signal measurement.
NOTE
If a signal has been measured in any one operational mode listed, the Level Meter can be
switched to another measurement mode without having to coarse or fine tune to the input
signal.
TYPE OF SIGNAL MEASUREMENT
LEVEL METER MEASUREMENT MODE
Non-telecommunication signals. Provides the best overall performance
LO DISTORTION (para 2-10).
for measuring signals other than telecommunication.
Non-telecommunication signals. Provides best performance for
LO NOISE (para 2-11).
measuring low level components of high level signals.
Any input signal from 50Hz to 32.5MHz. Measures only total power
WIDEBAND (para 2-12).
of an input signal.
Telecommunication signals. Measures idle message channel noise or
NOISE/DEMODULATION (para 2-13).
translates message channel signals to voice frequencies for monitoring
or for audio output.
Telecommunication signals. Measures incidental phase modulation of
PHASE JITTER (para 2-14).
1lKHz tones on message channels.
Telecommunication signals. Measures the 1004Hz signal on a message
TONE 1004Hz (para 2-15).
channel. Can be used with NOISE/TONE for signal to noise ratio on a
message channel.
Telecommunication signals. Measures noise on a message channel.
NOISE/TONE (para 2-16).
Removes 1004Hz signal component from message channel. Can be
used with TONE 1004Hz for signal to noise ratio on a message channel.
Telecommunication signals. Measures carrier leak signals or pilot tones.
CARRIER (para 2-17).
Telecommunication signals. Measures noise spikes on message channels.
IMPULSE (para 2-18).
Telecommunication signals. Measures the 2600Hz signal on a message
2600Hz (para 2-15).
channel. The 2600Hz tone indicates an idle message channel.
Measures the insertion loss of cables and other connection devices used
NETWORK ANALYSIS (para 2-19).
in any given testing hook-up.
2-21
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