Set Spectrum Analyzer Attenuation - Control Byte #143 (8Fh); Set Am/Fm Demodulation - Control Byte #145 (91H) - Anritsu Spectrum Master MS2711D Programming Manual

Set Spectrum Analyzer Attenuation – Control Byte #143 (8Fh)
NOTE: This command is new to the Spectrum Master MS2711D models. Use it instead of Control Byte
#111 to access the Attenuation.
Description: Sets the attenuation of the Spectrum Analyzer. Send a value of 255 (FFh) to enable dynamic attenuation.
Automatic control couples the attenuation to the reference level. Note that setting the attenuation using this command
automatically sets the attenuation coupling to "MANUAL", thereby allowing it to be defined independently of the reference
level.
Bytes to Follow: 1 byte
1) Attenuation (0 – 51)
Spectrum Master Returns: 1 byte
1) 255 (FFh) Operation Complete Byte
224 (E0h) Parameter Error: Invalid attenuation
238 (EEh) Time Out Error
Set AM/FM Demodulation – Control Byte #145 (91h)
Description: Sets the AM/FM/SSB Demodulation state. This command is also used to set the type of Modulation, volume,
Demodulation Frequency, BFO Adjust (SSB only) and the Demodulation time. On turning demodulation ON, after exiting
remote, at the end of every sweep, demodulation is performed at the Demodulation frequency for a period of time specified in
the Demod Time.
Bytes to Follow: 16 bytes
1) Set AM/FM/SSB Demod On/Off
2) Demodulation Type
3) Speaker Volume (higher byte)
4) Speaker Volume (lower byte)
5) Demodulation Time
6) Demodulation Time
7) Demodulation Time
8) Demodulation Time (lowest byte)
9) Demodulation Frequency
10) Demodulation Frequency
11) Demodulation Frequency
12) Demodulation Frequency (lowest byte)
13) SSB BFO Adjust
14) SSB BFO Adjust
344 00h = Off, 01h = On
345 00h = FM Wideband, 01h = FM Narrowband, 02h = AM, 03h = SSB Lower, 04h = SSB Upper
346 Speaker Volume is from 0 to 100 in steps of 10
347 Demodulation time in milliseconds from 100 millisec to 500 seconds
348 If Option 6 is installed and the frequency converter module is attached, the frequencies should be scaled by the scale
factor of the module. If the module is not attached, the frequencies are sent in Hz. Use Control Word A203 to
determine whether a module is attached and the appropriate scale factor.
349 BFO Valid Values are -10 kHz to +10 kHz. Send value as BFO(in Hz) + 10,000. For Example -10 kHz would be sent
as 0, 0 would be sent as 10000 and +10 kHz would be 20000
88
344
345
346
347
(highest byte)
348
(highest byte)
349
(highest byte)
Spectrum Master PM