Heathkit HW-101 User Manual

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changing back to the USB position of the MODE switch.
When two stations are operating in the LSB mode and the
operator of one changes to USB or CW, contact will be lost
until the other station changes to either USB or CW.
Be sure steps 1 through 10 have been satisfactorily
completed before proceeding with the following
adjustments.
{ ) Set the MODE switch to either the USB or LSB
position.
( } Connect a microphone to the MiC connector.
{ ) Set the METER switch to ALC (the meter needle may
“rest'’ below zero in the Transmit mode).
—
Place the FUNCTION switch in the PTT position. (If
your microphone does not have push- -to-talk
capabilities, make the VOX
PTT Adjustments).
PTT Adjustments
( ) Actuate the transmitter and, while speaking into the
microphone, turn the MIC/CW LEVEL control
clockwise until the peak deflections register at about
S3 on the meter. Keep the meter deflection below the
S6 point on voice peaks for the most linear output.
Vox Adjustments
( )} Turn the MIC/CW LEVEL control _ fully
counterclockwise. Leave this control in this position
for the following adjustments.
( ) Set the FUNCTION switch to VOX.
NOTE: Close-talk into the microphone when using VOX
Operation to prevent background noise from tripping the
Transceiver into transmit operation.
(_ ) While speaking into the microphone, turn the VOX
SENS control to just beyond a setting that will
energize the relays. Be sure this control is not set so
high that it will allow background noise to trip the
relays.
{ } Tune the receiver to a fairly strong signal and adjust
the AF GAIN control for a comfortable listening level.
{ ) Place the microphone where it will normally be used.
Advance the ANTI-TRIP gain control to just beyond a
setting that will keep the speaker signal from tripping
the VOX circuits. Be sure this control is not set so
high that it completely disables the relay closing
action,
( ) Speak into the microphone and turn the VOX DELAY
control to a setting that will hold the relays energized
during the slight pauses between words. This prevents
the relays from tripping at the beginning and end of
sack ward
each word,
NOTE: There will be a slight interaction between the VOX
SENS, ANTI-TRIP, and VOX DELAY controls.
Consequently, it may be necessary to readjust these controls
to achieve the desired results.
The Transceiver is now ready for operation in the SSB
mode. Speaking into the microphone (VOX) o
microphone push-to-talk switch (PTT) will change
Transceiver from receive to transmit operation.
OPERATION WITH A LINEAR AMPLIFIER
Operation with a linear amplifier is similar to operation with
an antenna at the output of the Transceiver, except that the
linear amplifier input may have a different impedance, This
will make it necessary to adjust the FINAL TUNE controls
for maximum output (input to the linear amplifier). Figures
1-14 and 1-15 (on Page 132 and 133) shows the proper
connections between a linear amplifier and the Transceiver.

Heathkit HW-101 Specifications

General

Brand	Heathkit
Model	HW-101
Category	Transceiver
Language	English