Am Bandwidth Selection; Fm Stereo/Mono Selection; Fm De-Emphasis Time Constant - Tecsun PL-368 Manual

AM Bandwidth Selection

Quick press [ AM BW ] repeatedly, or quick press and then rotate the
[ VOLUME ] knob, to select a bandwidth to enhance the intelligibility of
longwave, medium wave (AM) and shortwave signals. Selectable
bandwidths are:
LW/MW: 2.5, 3.5, and 9.0kHz.
SW: 2.5, 3.5, and 5.0kHz.
SSB: 0.5, 1.2, 2.2, 3.0 and 4.0kHz.
Wider bandwidth: Has better audio fidelity when receiving strong signals
or local stations.
Narrower bandwidth: Limits interference from adjacent strong signals
and background noise, thereby especially suitable for receiving weak
and distant stations.

FM Stereo/Mono Selection

When listening to FM through headphones, quick press [ FM/ST. ]. If the
device detects that the FM signal is in stereo the display shows the stereo
" " icon. Quick press [ FM/ST. ] again to return to mono listening.
Note: When the FM signal is broadcasted in mono, or broadcasted in
stereo but the signal received is weak, the audio output is in mono and
" " is not displayed.

FM De-emphasis Time Constant

While receiving FM broadcasts, long press [ 4 ] to adjust the de-emphasis
setting to 50μs or 75μs.
" ": For Europe, Australia, Japan (and most other locations).
" ": For the Americas and South Korea.
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