RF
Tracking
Generators
Covered
by
This
Manual
This
manual
applies
to
tracking
generators
with
the
serial
number
prexes
listed
inside
the
title
page
.
Serial
Numbers
Hewlett-P
ackard
makes
frequent
improvements
to
its
products
to
enhance
their
performance
,
usability
,
or
reliability
.
Hewlett-P
ackard
service
personnel
have
access
to
complete
records
of
design
changes
to
each
type
of
equipment,
based
on
the
equipment's
serial
number
.
Whenever
you
contact
Hewlett-P
ackard
about
your
tracking
generator
,
have
the
complete
serial
number
available
to
ensure
obtaining
the
most
complete
and
accurate
information
possible
.
The
serial
number
label
is
attached
to
the
rear
of
the
tracking
generator
.
The
serial
number
has
two
parts:
a
prex
(the
rst
four
numbers
and
a
letter),
and
a
sux
(the
last
ve
numbers).
See
Figure
1-2.
The
rst
four
numbers
of
the
prex
are
a
code
identifying
the
date
of
the
last
major
design
change
incorporated
in
your
analyzer
.
The
letter
identies
the
country
in
which
the
unit
was
manufactured.
The
ve-digit
sux
is
a
sequential
number
and
is
dierent
for
each
unit.
Whenever
you
list
the
serial
number
or
refer
to
it
in
obtaining
information
about
your
tracking
generator
,
be
sure
to
use
the
complete
number
,
including
the
full
prex
and
the
sux.
Figure
1-2.
An
Example
of
a
Serial
Number
Label
Calibration
Cycle
The
performance
tests
located
in
Chapter
4,
\P
erformance
T
ests
,"
should
be
used
every
12
months
to
check
the
analyzer
against
the
specications
listed
in
T
able
1-1.
1-4
General
Information
HP
85640A
RF
T
racking
Generator
Operation
and
Service
Manual
Summary of Contents for 85640A
Page 2: ...HP 85640A RF Tracking Generator Operation and Service Manual ABCDE Printed in USA ...
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