TABLE 2-1. CONTROLS, INDICATORS, AND CONNECTORS
ITEM
DESCRIPTION
FRONT
PANEL
(figure 2-1)
FUNCTION
DISPLA
Y indicators Twelve LED's
Illuminate one
at
a time to indicate the function
or
type
of
operation the equipment
is
performing
and
displaying
on
the CRT. Select by pressing
one
of
the arrow keys under the
DISPLAY
section.
1.
Gen/Mon
Mtr
- In generate mode, the
CRT
dis-
plays center frequency,
output
power,
and
RF
out-
put
modulation depth. In
monitor
mode, the
CRT
displays center frequency,
input
power, frequency
error,
and
received carrier modulation depth.
2. Modulation - The
CRT
displays modulation audio
in generate mode
or
demodulated audio in monitor
mode.
3.
Spectrum Analyzer -
CRT
displays the
RF
spec-
trum
and
operating center frequency. Use the Spec-
trum
Analyzer to identify interference, trace RF and
IF signals, measure transmitter harmonics, check
spurious response
and
receiver local oscillator radia-
tion.
4. Duplex Gen -
CRT
displays duplex generate fre-
quency
and
modulation depth on the generator out-
put
or
monitor
frequency
and
modulation depth
on
the received carrier.
FUNCTION
switch position
selects the reading. In this mode, the Analyzer
simultaneously generates
and
receives signals for
duplex radio servicing.
The
Duplex
Generator
pro-
vides enhanced capability to service equipment such
as repeaters, car telephones
and
emergency medical
telemetry portables.
5.
RF Memory - Stores
and
displays programmable
frequencies
and
codes up
to
a total
of
32 entries.
6.
Signaling Sequence - Simulates encode
and
decode
tone sequence for all code synthesizer modes. Press
an
arrow key in the Modulation section
to
select one
of
the six modes. Encode in generate function
and
decode in monitor function.
7. Frequency
Counter
- Measures
10
Hz
to
35
MHz
in-
puts
in
either generate
or
monitor
function. In
monitor
function, measure transmitted carrier fre-
quency
and
other signals less
than
35
MHz.
Use the
frequency counter
to
measure
and
set offset oscilla-
tors, pager IF's,
PL
frequencies,
and
other external
input
signals.
2-3
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