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Select DTF Windowing – Control Byte #31 (1Fh)
Description: Select DTF Windowing Methods.
DTF windowing allows you to make a trade off between side lobe height and resolution.
Bytes to Follow: 1 byte
1) Windowing Method
00h = Rectangular (finest resolution, highest side lobes)
01h = Nominal Side Lobe (balance between resolution and side lobes)
02h = Low Side Lobe
03h = Minimum Side Lobe
Site Master Returns: 1 byte
1) 255 (FFh) Operation Complete Byte
224 (E0h) Parameter Error: Invalid DTF Windowing Method
238 (EEh) Time-out Error
Set Site Master VNA Trace Math – Control Byte #32 (20h)
Description: Setup trace math operation and trace for VNA modes.
Bytes to Follow: 2 bytes
1) Trace Math Operation
00h = Off
01h = Addition
02h = Subtraction
2) Trace on which to Perform Math Operation (1 to 200)
Site Master Returns: 1 byte
1) 255 (FFh) Operation Complete Byte
224 (E0h) Parameter Error: Invalid Trace Math Operation
238 (EEh) Time-out Error
Recall Sweep Trace – Control Byte #33 (21h)
NOTE: This command is new to the S33xD. Use it instead of Control Byte #17 to access new features.
Description: Queries the Site Master for sweep trace data.
NOTE: Before you can recall a sweep stored in non-volatile memory (trace numbers 1-200) you must
build a trace table in the Site Master’s RAM. Use Control Byte #24 to build the trace table. Since the
trace table exists in RAM, Control Byte #24 must be executed every time the Site Master’s power is cy
-
cled.
Bytes to Follow: 1 byte
0 = Last sweep trace before entering remote mode (sweep trace in RAM)
1- 200 = Specific saved sweep number (stored sweeps in Flash memory)
Site Master Returns:
1-2) # of following bytes (total length - 2)
Site Master PM 49