Grundig YB 218, Руководство пользователя

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Short Wave (SW)
Your world receiver can receive a number of wavebands. Most of
these are known and tuning to the required station will soon
become a matter of routine, as the stations are always to be found
at the same place on the dial and are thus tied to a fixed
wavelength and frequency. With short wave this is unfortunately not
always the case. Short wave transmitters have to change their
wavelengths fairly often. In the short-wave range between 10 and
100-metre wavelength (frequencies of 30-3 MHz resp.) nine bands
between 10 and 50 metres are allocated to short-wave
broadcasting, with another four bands between 60 and 120 metres
for broadcasting in the earth’s tropical areas. The latter are roughly
located between the latitudes of 30° north and 30° south, i.e.
around the equator. Most short-wave broadcasting bands, indicated
in the short-wave table, are allocated for the whole world and can
be used for international broadcasting. They are so far the only
wavelengths which allow direct radio reception over long distances.
So in addition to the broadcasting services, there is a large number
of other users of short wave, for example radio amateurs, shipping
and aviation, radio navigation etc.
Aerials
• For FM reception extend the telescopic aerial fully. To improve
the reception you can incline and rotate the aerial. If the FM
signal received is too strong (in the direct vicinity of the
transmitter) you can retract the aerial.
• For the medium wave (MW), the set has a built-in aerial, so the
telescopic aerial is not needed. You can direct the aerial by
turning the set itself.
• For short wave reception (SW) extend the telescopic aerial and
position it vertically.
Radio reception
• Ensure that the LOCK -switch is off.
• Press ON/OFF to switch the radio on.
• Adjust the volume with the VOL
F
control.
• You can connect headphones to the
p
socket .
– The loudspeaker will then be switched off.
• Set the wave range with the
FM MW SW1..7 switch
FM = VHF waveband
MW = Medium Wave
SW = Short Wave.
• Stations can be tuned to with the rotary TUNING control using
the waveband dial. If a station is accurately tuned, the TUNING
6
indicator lights up.
FM MONO/STEREO
– When appears on the display, you are receiving an FM
stereo transmitter. If you are listening with
headphones, you will hear the FM station in stereo.
• A disturbing noise, due to a weak FM stereo signal, can be
suppressed by setting MO./ST. to MO. .
– The indication goes out and you will hear the FM station in
mono.
• Press ON/OFF once again to switch the radio off.
ST
ST
YB 218 page 17
17
GENERAL RADIO RECEPTION
GB