Acterna SPM-32A, Руководство по эксплуатации

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1.1 About these instruments SPM-32A ... SPM-36A
1-2
When combined with the PS-33A Level Generator (2 MHz),
each of the instruments forms a complete test setup for
measuring level , gain and attenuation.
The built-in synthesizer and 1 Hz frequency resolution allow
accurate, stable frequency settings across the entire range.
This greatly simplifies tuning to pilots using a narrow
resolution bandwidth. The instrument key with user-
selectable stepsize is useful for measurements on evenly
spaced channels. Fixed frequencies such as pilots can be
stored in memory to speed up routine tests.
The digital display indicates absolute and relative level with
0.01 dB resolution, allowing measurement of very small level
differences. The fast bargraph is very useful for alignment
work.
A demodulator with an integral loudspeaker can be used to
monitor the input signal.
The current result is also stored when the setup is stored; the
memory can be used as an electronic notebook up to 100
results.
The display provides a quick overview of all functions
currently in use. Other functions such as frequency scan,
AFC, demodulation, setups and storage of fixed frequencies
contribute to fast and error-free test procedures.
The instrument is ideal for field applications (e.g. in service
testing, maintenance) due to its simple operation, wide
temperature range, rugged design and flexible powering
options (a.c. line or batteries). Using the BAZ-33 Battery
Pack (accessory), the level meters can be operated for 8
hours from battery power.