Atec JDSU-JD748A-JD788A - Manual (Page 7)

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Adjacent Channel Power (ACP) measures the amount of RF
power leakage in adjacent channels and its ratios, with pass/fail
results for the defined test condition.
Spectrum Emission Mask (SEM) compares the total power
level within the defined carrier bandwidth and the given offset
frequencies to defined mask limits with pass/fail results.
Spurious Emissions measurements identify and determine the
power level of spurious emissions in certain frequency bands,
showing pass/fail results based on the defined mask limits.
Field Strength quickly and conveniently measures and ana-
lyzes field strength to user-definable multisegment lines.
Measuring field strength is easy once the user specifies the
antenna factors in the analyzer.
AM/FM Audio Demodulation identifies interfering signals.
The AM/FM signal can be demodulated into the instrument’s
built-in speaker or through a headset.
The spectrum analyzer can simultaneously operate with the
CW signal generator. It easily fulfills the >100 dB guideline
required for measuring repeater and antenna isolation.
PIM Detection* identifies passive intermodulation in the
uplink band caused when signals are combined from two or
more carriers and are transmitted on a single nonlinear feed
line.
Dual Spectrum* lets users view the spectrum activity for two
different uplink and downlink spectrum bands on one screen
simultaneously rather than switching between screens.
*Only available for the JD748A.