L3Harris NARDA PMM ER8000 User Manual page 66

SSFD
This setting command sets parameters and triggers a sweep.
FreqStart;
Arguments are as follows:
FreqStop;
FreqStep;
Detector;
HoldTime; Rbw;
MinAtt; Preamp;
Preselector;
ScanHoldT
7-14 Remote control
•
FreqStart = Sweep Start Frequency expressed in Hz
•
FreqStop = Sweep Stop Frequency expressed in Hz
•
FreqStep = Sweep Step Frequency expressed in Hz
o If FreqStep > 0 then a standard sweep, tuned step by step, is made
o If FreqStep < 0 (typical = -1) then the step will be set to AUTO
o If FreqStep = 0 then the sweep will be made by tuning the frequencies
listed in Frequency-Scan-Tab (which it must have been written previously
by command SSFW). The frequencies not included from FreqStart and
FreqStop are ignored.
•
Detector. In non –smart mode, any combination of the following detectors
can be used and combined. All the detectors set will be measured and sent
out. However, in Smart Mode only one detector at time, in addition to PEAK
which is always present, can be set.
o Non Smart Mode (All detectors can be indicated at once). Order is not
important.
 P Peak
 Q  Q Peak
 N  C-Rms
 A Avg
 R Rms
 C C-Avg
o Smart Mode (No more than 2 detectors can be indicated at once)
 S  Smart Mode (this must be the first in the string)
 Q  Q Peak
 N  C-Rms
 A Avg
 R Rms
 C C-Avg
•
HoldTime = Hold Time for each step and it is expressed in ms. Note that in
case of Smart Mode HoldTime is used only when the disturbance is
measured again by the alternative detector as minimum time, depending on
the RBW set, is used for the fast scan.
•
RBW. This is the index of RBW to be used for the scan. Neither automatic
selection, nor automatic switch is performed. The user must issue a suitable
RBW index. Index are as follows:
o 1 300kHz
o 2 100kHz
o 3 30kHz
o 4 10kHz
o 5 3kHz
o 6 9kHz (Cispr 16-1)
o 7 200Hz (Cispr 16-1)
o 8 1kHz
o Only for C, D bands o > 30 MHz
 10 120kHz (Cispr 16-1) (Opt. 01)
 91MHz (Opt. 01)
•
MinAtt = Minimum attenuation allowed during sweeping. This parameter
ranges from 0 (no limitation) to the maximum available attenuation. This
parameter is normally used to avoid switching up the sensitivity in order to
either protect the input from high spikes or to prevent switching down the
attenuation when, for instance, the limit is so high that it would be only waste
of time.
Note: In Sweep mode the Attenuator is always forced to AUTO