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The switch-on and -off times can also be
programmed in alternately. This need not
be done in chronological order. The clock
processor will automaticatly arrange the
switching times in chronological order, If
the display is switched to another function
(date, time or frequency) not more than 30
seconds after the last programming entry.
Switching times already in the memory
can be replaced by new ones. If a switch-
ing time is to be retained, one of the two
remaining sets of switching memory posi-
tions ("on" and "off" times) must be se-
lected by pressing the RECALL. ON-TIME
or OFF-TIME button a second time.
Setting the Radio to Switch On
Automatically
If the set is to switch on automatically with
a station tuned in (eg: as an alarm), press
one of the waveband buttons LW, MW, SW
or FM @ and tune io a station which will
be broadcasting at the switch-on time.
Then set the function switch @ to the top _
position (AUT,). The set will now switch on
at the preset time (ON-TIME) tuned to the
station received tast in the waveband
selected.
The set will switch off automatically at the
preset switch-off time (OFF-TIME).
If you have a portable GRUNDIG cassette
recorder you can also record radio broad-
» casts on tape in your absence, To do this,
connect the universal 8-pin socket on the
cassette recorder to the tape socket
{ 200 @) on the Satellit with the cable
STK 227. Select record and start on the
cassette recorder. When the Saitellit
switches on automatically, the cassette
recorder will start recording.
With record/standby selected on the
recorder it is advisable to connect it to the
mains (to reduce battery usage).
The SSB Section
The three controls and switches ©, @, ®
belong to the SSB section and have the
following functions:
Conirot @ AM RF GAIN CONTR. :
The AGC (Automatic Gain Control) is
switched on when this control is turned
fully anticlockwise (switching position).
MGC (Manual Gain Control) comes into
operation and the gain can be varied when
the control is turned clockwise. Switch ®
MODE (LSB, AM, USB) is for selecting the
operating mode. Control @ BFO/SSB-
CLARIFY is used for fine tuning SSB trans-
missions.
Important
The SSB unit should be switched off for
normal reception on AM wavebands, Set
the contro} @ to AGC and switch @ to AM,
otherwise distortion and whistle may occur.
Reception of SSB Stations
In normal radio transmissions the carrier
and two matching sidebands are transmit-
ted. Such stations can be tuned to without
difficulty. Tuning is more complicated in
the case of the SSB (single-sideband)
transmission system, used mainly by radio
amaieurs. Only one sideband is transmit-
ted in this case; the carrier and the other
sideband are suppressed. Moreover, this
single sideband is only present when the
SSB transmitter is modulated (usually by
speech), ie: tuning is not possible during
the pauses.
For SSB reception it is important to tune
the receiver with the manual control ®
and the CLARIFY control @ in such a way
that the sideband being received and the
carrier generated
in the set match each
other very accurately.
We recommend the foliowing procedure
(example : tuning to SSB transmissions in
40 m amateur band (7.0-7.1 MHz):
initially
the SSB unit is not in operation and the
CLARIFY acontrol @ is set to its centre po-
sition. Tune the set to 7.0 MHz and set the
preselector ® to its optimum position,
then switch off the motor-driven tuning
system (if selected) (press contro! ® to
release it). Then scan the band for ama-
teur stations by slowly turning the manual
iuning control @. When a station is found
(usually between 7.050 and 7.100 MHz),
adjust the mannual control for maximum
deflection of the pointer of the meter ®,
which swings in step with the as yet
unintelligible speech.
Then select MGC with switch @ and ad~
just the control so that reading of the
meter ® ts below "5". For weak stations ft
may be necessary to tum it fully clock-
wise, Next switch the MODE switch @ to
LSB. It is then usually possible to re-
cognise that speech is being broadcast,
although it may still be difficult to under-
stand. Intelligibility can then be improved
by turning the CLARIFY control @ slowly
clockwise or anticlockwise. If the speech
is still unclear, increase or reduce the fre-
quency by 1 kHz with the manual controt
and then adjust the CLARIFY control @
again until the speech is intelligible. This
may be necessary particularly for weak
stations, because the optimum tuning
point cannot be found or is difficult to find,
It should always be possible to obtain in-
telligible speech, If the frequency of the
SSB station is known it can of course be
entered with the numbered keys @ ; this
greatly simplifies the tuning procedure.
Finally it should be noted that the lower
sideband (LSB) is transmitted in the 80
and 40m amateur bands and the upper
sideband (USB) in the 20 and 15 m
amateur bands.
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