Aceessories
312B-3 SPEAKER
The 3l2B-3
contains a 5"
x ?"
(
12.7 cm x
17.78 cm) speaker
and
connecting
cable and is sMed
to
match the S/Line and KWM-2A.
Size: 10"
W
73/+" H,8" D
\25.4
cm W, 19.69 cm H,
20.32
cm
D).
Weisht:
4 lbs.
(1.81
kg).
3128-4 SPEAKER
CONSOLE
The 3l2B-4
integrates the 75S-3C,
32S-3A, 30S-l
and accessories
into
an
operating system.
The KWM-2A
and 305-1
can also
be combined
into an
operating system
bY the
3128-4.
A speaker,
RF directional
wattmeter
with 200 and
2000
watt
scales,
and a
phone
patch
are
in-
cluded
in the console.
Size:
10"
W,73/t"
H,
12Ya
"
D
(25.4
cm
W
19.69 cm
H, 31.12
cm D).
weisht:
8/? lbs.
(3.86
kg).
3128-5 VFO
CONSOLE
Designed
for use
with the KWM-
2.4 in fixed
station
operation,
the
3
l2B-5
provides
limited
sepa.ation
of receive
and
transmit
frequen-
cies,
phone patching
facilities
and
a
directional
wattmeter.
It includes
Permanent
magnetic
speaker. The
PTO
control selector
can be
set as
follows:
(1)
Receive
KWM-2A,
Transmit
312B-5;
(2)
Transceive
KWM-2A,
(3
)
Trans-
ceive
3l2B-5.
Other
control
func-
tions
are Voice
Operated,
Receive
Only,
Transmit
Only,
Phone
Patch
On-OiT,
and
Station
Mute. Cables
are
furnished
for
connectlons
to
rhe
KWM-2A.
Sizet
10" W,73/a"
H, l2%"
D
(25.4
cm W, 19.69
cm H, 31.12
cm
D). Weight:
8/2
Ibs.
(3.86
kg).
516F-2
AC
POWER
SUPPLY
The 516F-2
can
be used
with the
32S-3A
and
KWM-2A,
supplying
all voltages
for
them;
115 v,
50-60
Hz, 400
Hz with
minor changes
Size:
10" W,
73/t
"
H, 12' D
(25.4
cm W,
19.69
cm H, 30.48
cm D).
weight:
28 lbs.
(12.7
kg).
180S.1
ANTENNA
TUNER
The 1805-1
is basically
a
1 kw
Pi
network
for
matching
various an-
tenna
impedances
to a
50 ohm
coaxial
transmission
line in
the
range of
3-30 MHz
In most
cases
it
is used
as
an
L network,
but
when the
L network
cannot
match
the
desired
antenna,
the complete
pi
circuit
js
used.
The
variable
vacuum
capacitor
in the
outPut
circuit can
be connected
either
in
series
or
shunt
lvith
the antenna.
The
1805-1
is
useful
for tuning
trailing
wires
on large
aircraft
302C-3
0IRECTIONAL
WATTMETER
The 302C-3
is vah.rable
for check-
ing
the antenna
system.
It mea-
sures
forwrrd
and
reflected
RF
power.
Two
scales
are
Provided:
0-200
watts and
0-2000
watts
ac-
commodating
both high
and
low
power
transmitters.
The
302C-3
is
contained
in two units:
the remote
coupler for
connecting
into a
50
ohm transmission
line
and
the
meter
panel,
1368-2
NOISE
BLANKER
The
1368-2
is designed
for
use
with
the KWM-2A
under
mobile
operating
conditions.
This
noise
blanker
provides
effective
reduc_
tion of
impulse-type
noise.
It dif-
fers from
simple
audio
cliPPing
circuits
or series-type
limiters
by
silencing
ahead of
the selective
sideband
filters. All necessary
hard-
ware and
instructioos
are furnished
for simple
installation
into
the
KWM-2A.
The 1368-2
req[ires
a
40 MHz
antenna
which
can
be
used
as a standard
*'hip for
the car
radio.
Weight:
1tl
lbs.
(0.567
kg)
351D-2
MOBILE
MOUNT
The 3
5 1D-2
provides
secure
mounting
for
the KWM-2A
in
most automobiles,
Cantilever
arms
fold
out of the
way
when
the
KWM-2A
is removed.
The
connec_
tor at the right
end is
the
Power
plug;
the connector
at
the left
end
can be used
for contaol
of anten_
nas
having band
switching
circuit-
12
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