bit 7: Not Used

299)Reference Level Offset 173(highest byte)

300)Reference Level Offset

301)Reference Level Offset

302)Reference Level Offset (lowest byte)

303)External Reference Frequency 174

304)Signal Standard175 (highest byte)

305)Signal Standard (lowest byte)

306)Channel Selection176 (highest byte)

307)Channel Selection (lowest byte)

308)Interference Analysis Cellular Standard177

309)Interference Analysis Estimated Bandwidth (highest byte)

310)Interference Analysis Estimated Bandwidth

311)Interference Analysis Estimated Bandwidth

312)Interference Analysis Estimated Bandwidth (lowest byte)

313)Interference Analysis Frequency178 (highest byte)

314)Interference Analysis Frequency

315)Interference Analysis Frequency

316)Interference Analysis Frequency (lowest byte)

317-320) Reserved

321)Trigger Type179

322)Trigger Position (0 – 100%)

323)Min Sweep Time (in ￿s) (highest byte)

324)Min Sweep Time (in ￿s)

325)Min Sweep Time (in ￿s)

326)Min Sweep Time (in ￿s) (lowest byte)

327)Video Trigger Level180 (highest byte)

328)Video Trigger Level

329)Video Trigger Level

330)Video Trigger Level (lowest byte)

331)Status Byte 8 (0b = Off, 1b = On)

(LSB)

bits 0-1: Trace Math Operation (00b = A only, 01b = A-B, 10b = A+B)

 

bit 2: Max Hold On/Off

 

bit 3: Min Hold On/Off

 

bit 4: Transmission Calibration On/Off (Option 21 only)

 

bit 5: Bias Tee On/Off (Option 10 only)

 

bit 6: Occupied BW Measurement On/Off

 

bit7: Not Used

332)Impedance (00h = 50￿, 0Ah = 75￿ Anritsu Adapter, 0Ch = 75￿ Other Adapter)

333)Impedance Loss181 (higher byte)

334)Impedance Loss (lower byte)

173Value sent as ( value in dBm * 1000 ) + 270,000

1741 byte in MHz (i.e. 20 = 20MHz)

175Index into Standard List (use control byte #89 to retrieve the ASCII string name). “No Standard” sent as FFFEh

176“No Channel” is sent as FFFEh

1774 Standards – 00h = 1250KHZ CDMA, 01h = GSM, 02h = TDMA, 03h = AMPS, 04h = Unknown FFh = Interference Analysis Measurement OFF

178Scaled by Frequency Scale Factor (bytes 335-336)

179Trigger Type – 00h = Single, 01h = Free Run, 02h = Video, 03h = External

180Value sent as ( value in dBm * 1000 ) + 270,000

181Value sent as (value in dB * 1000), valid values are 0 to 20 dB

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Anritsu S331D, S332D manual Bit 4 Transmission Calibration On/Off Option 21 only