HP 8340B Manual page 468

Table A-3. Calibration
Constants
(4 of
6)
No.
58
59
60
61
62
63
Name
RETRACE DWELL
ATTEN CONFIG
CONFIGURATION
SERIAL
#
AT10SLP20GZ
AT20 SLP 20GZ
Function
Sets instrument dwell time after end of sweep
retrace.
Selects Attenuator operating conditions.
Bits
0
through
9
-
selects attenuator switch
threshold.
A 0 entry sets the
attenuator switch threshold
at —14.95
dBm
(i.e.,
in
coupled mode, the ALC
will go as low as
-14.95
dBm.
At —15.0
dBm,
the ALC
is set
to —5
dBm
and the attenuator
switches
in
10 dB of attenuation). A 500 entry
sets the attenuator switch threshold at
—9.95.
A 1020 entry
sets the attenuator switch thresh¬
old at
-4.75.
Bit 10
-
Must be set
to
1.
This allows
attenuator
to be
operated over 90 dB.
Bit 12
-
Selects attenuator Installed or not
installed.
Bit
13
-
Must be set to one.
Bit
14-Set to zero.
Bit 15
-
Must be set to
0.
This selects how
attenuator
is
programmed.
Selects instrument
options
Bit
0
-
Must be set to
zero
Bit 1
-
Without or With Option 001 or 005 (No
attenuator
option).
Bit
2
-
Without or
With Option 004 or 005 (Rear
panel
option).
Bit 13
-
Without or With C75
Special.
Storage location for
the instrument's
serial
number.
Slope compensation for RF power at 10 dB
attenuator setting from 20
to
26.5 GHz.
Slope compensation for RF power at 20 dB
attenuator setting from 20.0 to
26 5
GHz,
Range
(Counts)
0-20
0-1020
1024
0/4096
1
0
0
0
0/2
0/4
0/8192
—
0-255
0-255
Significance
10
ms/count
0.05 dB/5 counts
90 dB operation
Installed/
Not Installed
-
-
Attenuator
Programming
Without/With
Without/With
Without/With
-
0.01
dB/GHz/
count
0.01
dB/GHz/
count
A-20
Assembly-Level Service Calibration Constants
HP 8340B/41B