8662AOptionH18
08662-92033
Page 3 of 3
SECTION V, ADJUSTMENTS
Certain adjustments, such as 5-8, the 40 MHz CRYSTAL FILTER ADJUSTMENT, directly
affect the phase noise of the 8662A. Other adjustments, such as 5-9, 5-10, and 5-11, can indirectly
affect the phase noise of the main RF Output. Therefore, use caution when making any
adjustments on Option HI8, and verify phase noise performance after making any such
adjustments. Refer to the first paragraph at the top of page 2 of this Insert for further information.
SECTION VI, REPLACEABLE PARTS
In Table 6-3, Replaceable Parts, add or delete parts as noted in the following table:
Add or
Del
D
A
Page
No.
6-91
6-91
Ref.
Desig.
A8A3
A8A3
HP Part
Number
10811A
08662-82008
Qty
l
l
Description
10 MHz Reference Oscillator
10811A 10 MHz Reference Oscillator,
selected for low noise
SECTION VIII, SERVICE
Before proceeding with repair, replacement, or adjustment of parts or assemblies of Option
HI
8,
refer to the first paragraph at the top of page 2 of this Insert.
On page 8-102, under paragraph 8-18, Factory Selected Components (*), incorporate the
following:
The 8662A Option H18 includes a Factory-selected A8A3 10 MHz Reference Oscillator to
insure guaranteed phase noise performance. If it is necessary to replace A8A3, use a factory-tested
replacement part (see Table 6-3) or a 10811A with low enough noise to provide Option HI8
performance when tested in the 8662A. Typically, the 10811A 10 MHz output must have SSB
phase noise of approximately -162 dBc at a
1
kHz offset.
Copyright 1983 - HEWLETT-PACKARD COMPANY - Spokane Division
24001 E. Mission Ave, Liberty Lake, WA 99019-9599 U.S.A.
To Next Page
Loading...
Need help?
General
