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10
GLOBE TRAVELER G3 OWNER’S MANUAL
11
GLOBE TRAVELER G3 OWNER’S MANUAL
The synchronous detector can be used when listening to AM (medium
wave) and shortwave broadcast stations. It may help to minimize interfer-
ence and to improve the signal quality. While listening to a station press
the SYNC button. SYNC appears in the display as does USB or LSB to the
right. You can sync on the Upper or Lower sideband by pressing the U/LSB
button and noting which selection gives the clearer reception or improves
the audio. Turn the synchronous detector off while tuning stations or when
it’s not needed. Using the WIDE/NARROW button may also help. Using the
synchronous detector does not always minimize interference or improve
the signal. To turn the synchronous detector off, press the SYNC button.
This is a selectivity switch on the right side of the radio, under the TUNE
knob. Use WIDE when there is no adjacent frequency interference for the
best audio delity. Use NAR. To reduce adjacent frequency interference,
but minimizing audio delity.
Turn on the G3. Stations are tuned with the Buttons, Tuning-Knob,
Direct Frequency Entry and Auto-Search. Quick, short, sequential presses
of the buttons enables tuning up or down frequency. Alternately, the
TUNING knob can be used. Continuous tuning in shortwave can only be
done with the tuning knob and via direct frequency entry.
To experiment with SSB, turn on the G3 and position yourself near a
window if you’re in a building with stories above you. Tune to the 20 meter
Amateur band, by pressing 14150 KHz with the keypad and then pressing
the AM button to enter it. Turn on the SSB circuit by pressing the SSB
button twice (don’t select SYNC). Note that SSB appears in the display and
USB or LSB are to the right. Select upper sideband (USB) with sequential
presses of the U/LSB button. Set the FINE tuning knob to its approximate
center position. Put the sensitivity switch, on the left side of the radio, to
the DX position. Fully extend the antenna and with the tuning knob tune
slowly from 14150 to 14350 KHz, listening for anything that sounds like
a human voice. Use the tuning knob to coarse-tune the SSB signal, then
ne-tune with the –FINE+ knob.
This SSB circuit allows tuning of both upper and lower sideband
signals. For best clarity of some extremely strong SSB signals, placing the
DX/LOCAL switch (left side panel) in the LOCAL position (down)
may be desirable.
The DX/LOCAL switch (left side panel) adjusts sensitivity. Use DX (up) as
the default setting for maximum sensitivity to signals. If strong stations or
SSB signals seem distorted, then use LOCAL (down). This switch does not
function in FM mode.
TUNING SSB (Single Side Band) continued
USING THE SYNCHRONOUS DETECTOR
USING THE DX/LOCAL SWITCH
WIDE/NARROW SWITCH
TUNING IN STATIONS