Agilent Technologies 8566B Operating And Programming Manual page 500

LEARN STRING CONTENT
BIT USAGE
BYTE BY
NUMBEF
EXAMPLE
7 6 5 4 3 2 1 0
0 0 0 1 1 1 1 1
- - - - - - 0
0 0 0 0 0 0 0 0
0 0 0 1 0 0 1 0
0 0 1 1 0 1 0 0
0 1 0 1 0 1 1 0
0 1 1 1 1 0 0 0
1 0 0 1 0 0 0 0
0 - - - - - - -
- - - - - - 0 0
10
11
- - - 0 0 1 0 0
12 0 0 0 0 0 0 0 0
13 0 0 0 0 0 0 0 0
14 0 0 0 0 0 0 0 0
15 0 0 0 0 0 0 0 1
16 0 0 0 0 0 0 0 0
17 0 0 0 0 0 0 0 1
i - - - - - -
v
- 1 - - - - - -
18 - - - - I---
- - - - - o - -
- - - - - - o -
- - - - - - - 0
1 - - - - - - -
- I - - - - - -
- - - - - - -
1
19
- - - - I - - -
- - - - - - - 1
2 6 A p p e n d i x
HP 8566B LEARN STRING DECODING (1 OF 6)
EXAMPLE
3 1 (decimal) Notifies analyzer that a learn string follows
Unused
Sign of center frequency: I= + , 1 = -
+ (plus sign)
0 0 Center frequency (CRT annotation is rounded from this value)
1 2 BCD
MSD: Byte 4, bits 4 through 7
3 4
5 6
7 8 For this example, the Center frequency is 1234567896 Hz.
9 0
Bit 7 set to 1 if in zero span mode.
03
Output Format
Band Lock
Band lock 0 = unlock (IP, KSQ)
1 = band lock (KSt)
4th Harmonic Harmonic mode in use, 0, 1,2.. ., where 0 is fundamental mixing O-2.5 GHz.
0 0 Frequency span in Hz (CRT annotation is rounded from this value)
0 0
0 0 BCD
MSD: Byte 12, bits 4 thru 7
0 1
0 0
0 1 For this example: 10001 (Hz)
Enabled 0 = DATA HOLD (HD) 1 = DATA Enabled
SIGNAL TRACK
On
Instr Check I LED
On
On Instr Check II LED
Coupled CF STEP SIZE
Coupled
SWEEP TIME
VIDEO BW
RES BW
THRESHOLD
DISPLAY LINE
Noise Marker (KSM)
Frequency display mode
DESCRIPTION
1 = Uncoupled
0 = Coupled
1 = Uncoupled
0 = Coupled
0 = Coupled 1 = Uncoupled
0 = Coupled 1 = Uncoupled
1 = Uncoupled
0 = Coupled
1 = start-stop
APPENDIX C