Carrier Frequency Ranges - Racal Instruments 9081 Maintenance Manual

Synthesized signal generators
Table of Contents

Advertisement

TABLE
7
Carrier
Frequency Ranges
Range
Coverage
5
240.0
-
540.7MHz
4
120.0
-
270.3MHz
3
*60.0
-
135.1MHz
2
*30.0
-
*67.5MHz
1
**4.8
-
*36.7MHz(9081)
**1
.5 -
*36.7MHz
Channel
spacings
)
at
6.25, 12.5,25
)
and
50KHz
)
9082
**1 .2
-
*36.7MHz
remaining channel
)
i
spacings
)
*Digits
blanked
.
(II)
Set the
TUNE
switch
to
HOLD
.
Refer
to
Table 8.
Operate
the
STEP
UP/DOWN
switch
y
while observing
the display,
and
verify that the correct
frequency
steps
are
obtained
for
the
ranges
and channel
spacings
in
table
8.
TABLE
8
Channel Spacing
Check
Frequency
Channel Spacing
to
check
400MHz
All.
Af
(=
5kHz)
200MHz
10kHz and
Af
(=
2.5kHz)
100MHz
60kHz
and
Af
(=
1.
25kHz)
50MHz
6.25,
12.5and
Af
(=
625Hz)
25,50k
Hz
(12)
Select
range 2 and tune
to
50
MHz.
Select
6,25
kHz
channel
spacing,
and operate
step
up
switch
once.
Select
12.5kHz
channel spacing and check
that the
display
returns to
50
MHz.
(13)
Repeat
the
procedure
of
sub para
(II)
stepping
up by
12.5kHz
and
then selecting25
kHz
channel spacing and
stepping
up
by 25
kHz
and
then
selecting
50kHz
channel spacing.
9081
&
9082.
Vol.
2.
5-7

Advertisement

Table of Contents
loading

This manual is also suitable for:

9082

Table of Contents