Anritsu S332D, S331D Set Reference Level Offset Control Byte #115 73h, Bytes to Follow 4 bytes

16)Limit Value End X (lowest byte)

17)Limit Value End Y 273(highest byte)

18)Limit Value End Y

19)Limit Value End Y

20)Limit Value End Y (lowest byte)

Site Master Returns: 1 byte

1)255 (FFh) Operation Complete Byte

224 (E0h) Parameter Error: Invalid limit segment, status or value 238 (EEh) Time Out Error

Set Return Spectrum Analyzer Sweep Time – Control Byte #114 (72h)

Description: If this is enabled, the duration of the current sweep (in milliseconds) will be returned as 4 bytes via the serial port at the end of the sweep. If Serial Echo Status is enabled, the 4 bytes will be returned AFTER the sweep complete byte.

Bytes to Follow: 1 byte

1)Return SPA Sweep Time flag state 00h = Don’t Return Sweep Time 01h = Return Sweep Time

Site Master Returns: 1 byte

1)255 (FFh) Operation Complete Byte

224 (E0h) Parameter Error: Invalid state

238 (EEh) Time Out Error

Set Reference Level Offset – Control Byte #115 (73h)

Description: Set the value of the reference level offset.

The reference level offset allows the user to view the result of trace math (A+B, A-B) even if it is greater than +20 dBm or less than –120 dBm. The offset is a constant that is subtracted from the reference level.

Note that the valid range is –100 to +100 dB.

Send the value as (value in dB * 1000) + 270,000.

For example, to compensate for a 30 dB attenuator, the reference level offset should be -30 dB. That value would be sent over the serial port as (-30 * 1000) + 270,000 = 240,000.

Bytes to Follow: 4 bytes

1)Reference Level Offset (highest byte)

2)Reference Level Offset

3)Reference Level Offset

4)Reference Level Offset (lowest byte)

Site Master Returns: 1 byte

1)255 (FFh) Operation Complete Byte

224 (E0h) Parameter Error

238 (EEh) Time Out Error

273 ( Value in dBm * 1000 ) + 270,000

Site Master PM 89