8662AOptionH17
08662-92035
Page 7 of 15
EXTERNAL CONTROL OF AM DEPTH
When using Special AM Mode below 150 kHz, only the level of
the external modulating signal controls the AM depth. 720 mV
RMS will provide approximately 95% AM depth. The sensitivity
is approximately
1 %
AM per 7.6 mV RMS input.
On page 3-74, in the Modulation, Mixed section, delete the last line in Description: (Special
Function 51).
On page 3-74, in Procedure, replace the lines labeled AUX FM On and Off with the
following:
AUX FM ON: Refer to Procedure on page 3-68.
AUX FM OFF: Shipped from factory in this configuration. Refer to Procedure on
page 3-68 to change.
Change the second example on page 3-74 as follows:
Enable the rear panel AUX FM connector
Local
(Keystrokes)
Connect jumper on A4A9 board as described in
Procedure, page 3-68
HP-IB
(Program
Codes)
Not applicable for the 8662A with Option HI7
On page 3-75, replace the last sentence under Comments with the following:
The MOD OFF key turns off all modulation except FM produced from the AUX FM
input and AM produced by the Special AM Mode.
On page 3-79, under SPECIAL FUNCTIONS, after Comments, add the following:
When operating in the Special AM Mode, do not enter Special Functions 41 or
42.
If
these Special Functions are entered while using the Special AM Mode, their
simultaneous operation will interfere with and distort the external modulation signal-
Copyright 1983 - HEWLETT-PACKARD COMPANY - Spokane Division
24001 E. Mission Ave, Liberty Lake, WA 99019-9599 U.S.A.
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