Ssb Hf'transceiver - Cessna 172P Pilot's Operating Handbook And Flight Manual

PILOT'S OPERATING H.ANDBOOK
SUPPLEMENT
13
SSB
HF'TRAIVSCEIVER
(TYPE
ASB-12õ)
SUPPLEMENT
SSB HF TRANSCEIVER
(wPE
ASB-125)
sEcTloN I
GENERAL
The ASB-12õ
HF transoelver ie
an
airbome, lO-ohannel, single side-
band (SSB)
radio witJr
o
oonpatibls
q¡nplitude modulated (AM)
transmitting-reoeiving system for long
r&ng€
voioe communicatione
in
tJre 2
to
18
MHz frequency
ra,nge.
The
systen
ooneiste
of
a
panel mounted
receiver/exciter, a rem.ote mounted power a,mplifier/power
supply'
an
antenna
coupler and an externally mounted, fixed
wire, medium/high
freguency
antenna.
A
channel seleotor knob detemiuee the operating frequoncy of the
transceiver whioh
has predetemined
orystals inetalled to provlde
tJre
desired operating frequencies.
A
mode seleator
oontrol
is
provided to
supply
the type
of
em
either
sideband,
AM
or telephone for
publi
b,
clarifier
knob and
squelch knob
are
provided to asslst in
audio
operatlon
during
receive.
In
additiou
to
tJre
aforemeutioned controls, rchioh are
all
located on the
receiver/exciter, a meter
is
inoorporated
to
provide antenna loading
readouts.
The
system
utilizes
the airplane
mlorophone, headphone and
speaker.
Operation
and
description
of tbe audio control
panels
used
iu oonJunction
with this radio
are sbown and
deeoribed
in
anotJrer
supplement
in
tJris
section.
80
May
1980
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