SAF Spectrum Compact 0.3-3 GHz v2, User Manual

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Spectrum Compact v2 API user manual v.1.0
15
API commands Description
trace Returns the currently selected trace mode displayed on the screen of
Spectrum Compact:
1 – normal
2 – maxhold
3 – minmaxhold
4 – cumulative
5 – average2
6 – average 4
7 – average 8
8 – average16
trace < 1 – 8 > Sets the trace mode displayed on the screen of Spectrum Compact.
Note: values returned with “ sweepu ” and “ sweepc ” command s are
always with “normal” trace mode (any processing must be done
afterward).
pib
<start frequency in kHz>
<end frequency in kHz>
Returns calculated Power-in-Band value once in dBm* for selected
frequency range (RESULT = -VALUE + (ATT - REF))
Enter values in kHz format:
Start Freq - selected pib start frequency
End Freq - selected pib end frequency
* returns calculated Power-in-Band values continuously
zspan
<center frequency in
kHz>
Returns measured signal level continuously in dBm for selected
center frequency point
– zero span, with set RBW value. Each
measurement point is returned as ASCII hexadecimal unsigned byte
strings consisting of 2 + 1 characters.
Structure of returned value:
XXY, where XX – value in dBm ; Y – counter from 0 to 9.
Start Freq - selected zero span center frequency
To stop an ongoing command immediately, send any character while
data is being received.