3. Bandwidth (BW)
While radio signals are centered on one frequency, they actually occupy a range of frequencies.
Sometimes two stations with adjacent frequencies can interfere with each other. This problem
can be lessened by reducing the frequency range (bandwidth) the radio tunes. This feature is
available on LW, MW and SW on this radio, but typically only used on SW.
The bandwidth is selected by pressing the [ AM BW ] button. The width is shown on the
display ,and repeated presses of the button will cycle through the values: 6, 4, 3, 2.5, 2, 1.8
and 1 kHz .The bandwidths in SSB mode are 4, 2, 2.2, 1.2, 1, and 0.5 kHz.
Generally, the higher the bandwidth, the better the audio fidelity and the lower the bandwidth,
the lower the interference and noise.
4. Squelch Function
Press the [ Tuning ] knob for about 5 seconds, squelch mode will start. Squelch Mode works
on all bands.
When set, the radio remains silent until a transmission stronger than the set level is received. To
activate the feature, long press the tuning knob inwards, and when the word “Squelch” appears in
the display immediately rotate the tuning knob to begin setting the squelch level. The values are
1-9 and OFF. The higher the number, the stronger the signal must be to activate the radio. The
optimum level is usually the highest number without background noise. Turning squelch off may
enable reception of weak signals that would otherwise not be heard.
( Note: If you find your radio not receiving any signals, check to make sure the squelch is not
turned on unintentionally. )
5. Display Mode
The display can be set to show different information; press the [ DISPLAY ] button to cycle
between signal strength/signal to noise ratio, time, temperature and alarm time. Signal strength
is expressed in dBu units, the larger the number, the stronger the signal. The signal to noise radio
is expressed in dB units; the larger the number, the greater the signal quality, with a value of 0
indicating that signal and noise are equal. The value is also shown as 0 when there is no signal at
all.
6. FM Reception
To receive FM broadcasts, fully extend the whip antenna and press the [ FM ] button.
Here are your tuning options:
1. Press [FREQ] button, enter the frequency of the station, and press [FREQ] button again.
2. Long press the [FM] button to activate ATS to store all strong stations into memory (see
section on the Memory system for how to access them).
3. Press the [Up or down arrow] keys to go to the next frequency.
4. Long press the [Up or down arrow] to scan for the next strong station.
5. Rotate the tuning knob to tune stations.
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