Control Byte Descriptions; Setup System - Control Byte #1 (01H); Select Measurement Mode - Control Byte #3 (03H) - Anritsu Spectrum Master MS2711D Programming Manual

Control Byte Descriptions

Setup System – Control Byte #1 (01h)
Description: Sets system status flags and switches. The current value of the flags can be obtained by executing
command #29, Query System Setup, and parsing the values from the appropriate bytes. The Spectrum Master acts
on the entire byte. So, the state of each of the bits must be defined every time the command is issued. See control
byte #29 (1Dh) response bytes 275 and 276 for current Spectrum Master configuration.
Bytes to Follow: 1 byte
1) Status byte
bit 0 = RBW Coupling (to span) (1b = auto 0b = manual)
bit 1 = VBW Coupling (to RBW) (1b = auto 0b = manual)
bit 2 = LCD Back Light ON/OFF (1b = ON 0b = OFF)
bits 3-4 = Logarithmic Amplitude units (00b = dBm 01b = dBV 10b = dBmV 11b = dBuV)
bits 5-6 = Detection algorithm (00b = positive peak 01b = RMS average 10b = negative peak
11b = Sampling)
bit 7 = Attenuation Coupling (to ref level) (1b = auto 0b = manual)
Spectrum Master Returns: 1 byte
1) 255 (FFh) Operation Complete Byte
238 (EEh) Time-out Error
Select Measurement Mode – Control Byte #3 (03h)
Description: Sets the measurement mode of the Spectrum Master. The response byte will not be sent until the
mode change is complete.
See control byte #29 (1Dh) response byte 3 for the current Spectrum Master measurement mode.
Bytes to Follow: 1 byte
1) Measurement Mode
30h: Spectrum Analyzer Mode
31h: Transmission Mode
39h: Channel Scanner Mode
3Bh: Interference Analyzer Mode
3Ch: CW Signal Generator Mode
40h: Power Meter Mode (narrow band)
41h: Power Monitor Mode (Option 5)
42h: High Accuracy Power Meter Mode
Spectrum Master Returns: 1 byte
1) 255 (FFh) Operation Complete Byte
224 (E0h) Parameter Error : Invalid measurement mode
238 (Eeh) Time-out Error
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