Heathkit HW-12 - Page 4

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Page 4 —_ ee)
Equipment Used To Prepare
Equipment
Used
To
Check
And
Calibrate.
....
Heath IM-11 VTVM with 309-C RF Probe,
Heath HO-10 Monitorscope.
Heath IG-72 Audio Generator,
Heath IM-12 Distortion Meter.
Heath HN-31 Cantenna,
Panoramic Radio Products, Inc, '"Panalyzer,"
Model SB-12A.
General Radio Co,, Signal Generator, Model
1001-A,
Tektronix Oscilloscope, Model 515A.
Esterline Chart Recorder, Model AW.
Boonton RF Voitmeter, Modei 91-CA.
VTVM and RF Probe.
Frequency standard,
Crystal calibrated receiver, covering the 80-
meter band, or an accurate broadcast receiver.
r
specifications at
any time without incurring any obligation to
incorporate new features in instruments pre-
viously sold.
INTRODUCTION
NOTE:
An
Amateur
Radio
License
that
provides
General
Class
privileges
is
required
to
operate
this
Transceiver
on
the
air.
The
Heathkit
Model
HW-12
Amateur
Transceiver
is
an
80-meter
SSB
(singie-sideband)
trans-
mitter
and
receiver
designed
for
both
mobile
and
fixed
station
use,
The
receiver
and
transmitter
are
i
gether
with
the
continuously
running
VFO
insure
that
both
sections
operate
at
the
s
frequency.
The
low
frequency
VFO
is
tempera-
ture
compensated
to
provide
stable
operat
Provisions
have
been
made
fo
talk)
operation,
A
VOX
ee? tae
mitter)
circuit
is
designe
Other features include ALC (automatic level con-
trol)
to
prevent
the
transmitter
from
overload-
ing,
and
AVC
(automatic
volume
control)
to
main-
a ee es aeemee A ween nano
tain
constant
receiver
output
over
a
wide
range
P
£
of input signal strength,
An accessory socket is wired into the circuit
for the Heathkit Model HRA-10-1 Crystal Cali-
brator
to
provide
accurate
frequency
checks
at
100
ke
intervals,
A
connection
on
the
rear
of
the
Transceiver
for
switching
an
external
relay
a
linear
amplifier.
Power
for
the
Transceiver
ean
be
obtained
from
the
Heathkit
Model
HP-13
(12
VDC)
or
Model
HP-23
(120
VAC)
Power
Supply,
Equivalent
power
supplies
can
be
used,
one +