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Send a 0 (zero) following the command to read the current adjacent channel power measurement (i.e. the one that is updated
as the unit is sweeping).
Send 1-200 to read the channel power associated with a stored trace (use Query Trace Names, #24, to obtain trace numbers).
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, frequencies are sent in Hz. Use Control Word A203 to determine whether a module
is attached and the appropriate scale factor.
Bytes to Follow: 1 byte
1) Adjacent Channel Power Ratio Location (0 = current measured value, 1-200 = value in stored trace)
Site Master Returns: 29 bytes
1) ACPR On/Off
2-5) Main Channel Center Frequency
6-9) Main Channel Bandwidth
10-13) Adjacent Channel Bandwidth
14-17) Channel Spacing
18-21) Main Channel Power (= (power in dBm * 1000) + 270000)
22-25) Lower Adjacent Channel Power (= (power in dBm * 1000) + 270000)
26-29) Upper Adjacent Channel Power (= (power in dBm * 1000) + 270000)
Read Signal Standard Name – Control Byte #89 (59h)
Description: Returns the name corresponding to the desired signal standard index as an ASCII string in English.
Bytes to Follow: 3 bytes
1) Mode (00h = VNA, 01h = SPA/Transmission Mode (Option 21))
2) Signal Standard Index (higher byte)
3) Signal Standard Index (lower byte)
Site Master Returns: 2 bytes + number of bytes in string (or 1 byte on error)
1) String length (in number of bytes - referred to as “X” on the next line)
2-(X+1)) Standard Name in ASCII
X+2) 255 (FFh) Operation Complete Byte
or
1) 224 (E0h) Parameter Error
238 (EEh) Time Out Error
Measure OCC BW % of Power – Control Byte #96 (60h)
Description: Measure OCC BW with % of Power method.
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, frequencies are sent in Hz. Use Control Word A203 to determine whether a module
is attached and the appropriate scale factor.
Bytes to Follow: 4 bytes
1) % of Power (highest byte)
2) % of Power
3) % of Power
4) % of Power (lowest byte) (in 100th of %, 9123 = 91.23% )
Site Master Returns: 16 bytes
1-4) Occupied Bandwidth (in Hz)
5-8) Measure dB down (dB * 100,000)
Site Master PM 81