Measurement Types and Result Displays
R&S
®
NRX
100
User Manual 1178.5566.02 ─ 05
Average ← Forward
Average power
Remote command:
CALCulate<Measurement>[:CHANnel<Channel>]:FEED<Channel>
"POWer:FORWard:AVERage"
CCDF ← Forward
Complementary cumulative distribution function. Probability that the envelope power is
higher than the threshold set under
Suitable for assessing the power distribution of spread-spectrum signals, for example
CDMA.
Remote command:
CALCulate<Measurement>[:CHANnel<Channel>]:FEED<Channel>
"POWer:FORWard:CCDFunction"
Peak Envelope Power (PEP) ← Forward
Peak power of an amplitude-modulated signal. Depending on the selected
, this parameter allows detecting short-time overshoots at the beginning of a
burst.
The peak envelope power (PEP) is an important parameter for describing the modula-
tion characteristics of transmitter output stages.
Remote command:
CALCulate<Measurement>[:CHANnel<Channel>]:FEED<Channel>
"POWer:FORWard:PEP"
Absorption Average ← Forward
Absorbed average power. Difference between the forward and reverse
surement.
This parameter measures the effective power transmitted to the load. With good
matching, the difference between forward power and absorbed power is less than one
percent.
Remote command:
CALCulate<Measurement>[:CHANnel<Channel>]:FEED<Channel>
"POWer:ABSorption:AVERage"
Crest Factor (CF) ← Forward
Level difference between the peak envelope power and the average power in dB.
Average power
Crest factor =
Peak envelope power
10 dB x log
Allows recognizing larger modulation distortions quickly.
Remote command:
CALCulate<Measurement>[:CHANnel<Channel>]:FEED<Channel>
"POWer:CFACtor"
NRT