Heathkit HW 101 Manual 2

Page 1

Assembly
and
Operation
of the

SSB TRANSCEIVER
MODEL HW-101

HEATH COMPANY
BENTON HARBOR, MICHIGAN 49022

Page 2

ALIGN MEN T

The coils and transformers in your Transceiver have been
preset at the factory. Only minor readjustments should be
necesary during the following alignment procedure.

The following equipment is necessary for alignment of the
Transceiver.

1. A test meter, such as an 11 megohm input voltmeter.
(Vacuum tube and solid-state models are found in the
Heath catalog.) A 20,000 ohm-per-volt VOM may be
used, but will load the circuits to a greater extent.

2. A 50 $2 nonreactive dummy load that is capable of
100 watts dissipation, such as the Heathkit Cantenna.
Do not use light bulbs for a dummy load as they
present an impedance which varies with power and
frequency.

3. A receiver capable of receiving WINV at 2.5, 5, 10, or
15 MHz. If this type of receiver is not available, a
receiver tunable to a standard broadcast station which
is operating at an even multiple of 100 kHz (such as
600 kHz, 1000 kHz, etc.) can be used.

4. An accurate 100 kHz standard oscillator may be used
for the alignment of tuned circuits. DO NOT use such
an oscillator to adjust the Transceiver crystal
calibrator. For this purpose refer to the "Crystal
Calibrator Alignment" section of this Manual.

For the alignment of the transmitter section it is
recommended that you use an oscilloscope, such as the
Heathkit Signal Monitor Scope to observe the output RF
envelope

WARNING: Do not place the Transceiver in the transmit
mode of operation until directed to do so or the Transceiver
my be seriously damaged.

(/l Connect a 50 £2 dummy load, capable of 100 watts

dissipation, to the ANTENNA jack on the rear of the
chassis. CAUTION: Do not use light bulbs as a dummy
load.

Be sure an 8 SI speaker is conr sated to the 8 fljack on
the rear of the chassis.

Preset the CAL XTAL trimmer so its notch is towards

the 100 kHz crystal as shown in Figure 1-2 (fold-out
from Page 100).

Preset the front panel controls as follows:
DRIVER PRESELECTOR - 12 o'clock position.
MIC/CW LEVEL - fully counterclockwise.
MODE - LSB.

BAND - 3.5.

MAIN TUNING Dial (VFO) - 200.

FUNCTION -- PIT.

RF GAIN - fully clockwise.

METER - ALC.

AF GAIN - 9 o'clock p05ition.

S METER ADJUSTMENT

Adjust the ZERO ADJ control (on the right side of
the chassis) for a zero indication on the meter with the
antenna disconnected and the RF GAIN control at the
full clockwise position.

119