L3Harris NARDA AMS-8061 User Manual page 211

5.7.5 Band Packet
description
The figure named Freq_Start is shown as follows:
Byte
+0 - +3
Freq_Start is a Little Endian 32bit IEEE floating point number representing the start frequency of the
band and it is expressed in Hz
If Freq_Start=0xffffffff or Freq_Start=0x00000000 then the band is empty and should be ignored.
The figure named Freq_Stop is shown as follows:
Byte
+4 - +7
Freq_Stop is a Little Endian 32bit IEEE floating point number representing the start frequency of the
band and it is expressed in Hz.
The figure named RBW is shown as follows:
D07
Byte +8
This figure (RBW) gives two figures:
• the Index of RBW used. Index is a 4 bit unsigned integer.
• DivExp is a 4 bit unsigned integer and express the exponent of the Scaler. Scaler=10^(DivExp-
2).
For example, if RBW=0x31 then Index=1 and DivExp=3. Therefore, Scaler=10^(3-2) = 10.
Freq_Start
32 bit Float
Freq_Stop
32 bit Float
D06 D05
DivExp
D04 D03
SMS Messages and Commands
D02 D01 D00
Index
5-43