Operating instructions
c:
Table 3-1. Controls
and
Indicators
(Continued)
NAME
CARRIER
FREQUENCY
SELECTOR
SIGNAL
LEVEL
CHANNEL
OVEN ON
±kHz
(FREQUENCY
lever)
FREQUENCY
(meter)
METERS
INT.-EXT.
(rear
panel)
FUSES
(rear
panel)
Auxiliary
Equipment
Connector
(left
side-
lower
left
corner
of
instrument)
5601"0015"1
REF
DESIG.
SI (CH)
DSI
DSI (AI)
DS2
S2
Ml
Jl
(RP)
SI (RP)
F2 (RP)
Fl
(RP)
J4
(RP)
FUNCTION
Provides
selection
of
anyone
of 23
RF
channels
for
frequency
error
and
FM
deviation
measure-
ment
or
signal
generation.
Channel
numbers
1
through
23
are
associated
with
specific
carrier
frequencies
as
recorded
on
the
Channel
Fre-
quency
Chart.
The
AUX.
position
permits
con-
nection
of
additional
crystals
to
the
CRYSTAL
OUT AUX. IN
connector
on
the
front
panel.
In
FREQ.
- DEV. MEASURE
position,
this
lamp
will
lightwhen
a
received
signal
is
strong
enough
for
reliable
frequency
measurements.
In CAL. /
CW
or
FM
position,
the
lamp
will
always
be on.
Indicates
that
the
CE-7
is
on.
Indicates
that
there
is
power
to
the
Crystal
Oven
Assembly.
The
oven
will
normally
be on
for
approximately
30
seconds
and
off
for
ap-
proximately
90
seconds
after
the
operating
temp-
erature
of
76. 2°C
has
been
reached
. .
Permits
selection
of
the
three
directly
calibrated,
full
scale
FREQUENCY
meter
ranges
of ±O. 5
kHz,
±1. 5
kHz,
or
±5. 0
kHz.
Provides
indication
of
received-signal
frequency
error.
This
error,
and
whether
it
is
above
or
below
the
selected
frequency,
is
directly
indi-
cated
in ±kHz.
The
meter
is
also
used
to
indi-
cate
the
center
frequency
of
the
signal-generator
output.
The
meter
is
automatically
in
the
±5.0
kHz
position
when
the
function
switch
is
in
FM.
The
8-pin
connector
permits
use
of
the
Model
309B
Remote
Meters
when
the
associated
slide
switch
is
in
the
EXT.
position.
Main
AC-power
to
fuse
(1. 0
amp
slo-blo).
Provides
protection
(2/10
amp
slo-blo)
to
the
Model
301
Oscilloscope.
.
A
12-pin
connector
for
the
Model
107 FM
Deviation
Calibrator.
NOTE
The
Model
107 FM
Deviation
Calibrator
must
be
used
in
conjunction
with
an
external
oscillator
with
the
capabilities
of 2080 to 2100 Hz.
3-4
r:
"
r"
,
r'
,
r:
r=
r.:
r.
"
"
[:
r-
•
C:
k:
•