Philips D 2999 - RADIO OPERATION FUNDAMENTALS; Initial Power On and Basic Tuning; Display and Illumination Control; Bandwidth and Sensitivity Adjustment

connecting an external loudspeaker. The external
loudspeaker can then be switched on and off with
switch 0.
• The monitoring speaker @ will always function
when the radio is 'on'.
OPERATION
• Switch on the set with RADIO ON/OFF button0.
Now the receiver tunes to 87.5 MHz in the FM range
or • if the set has already been operated before - to
the last frequency received.
• Adjust the volume with 'VOLUME' control @.
• Adjust the tone with the controls TREBLE' ©
and 'BASS'
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Illumination
• If battery power is used the display and meter can
be illuminated by pressing button ©. The light will
switch off automatically after a while.
• The display and meter will be illuminated continu¬
ously when the set operates on the mains or on a
car battery. After switching off the set in this case,
the display and meter will still be illuminated. The
light will switch off automatically after a while.
Bandwidth switch
• Where two adjacent AM stations cause interfer¬
ence, switch the bandwidth switch © to 'narrow'.
• When receiving strong AM stations without
interference, the bandwidth switch© may be set to
wide', in order to obtain a better sound quality.
Field strength/battery check meter
e The field strength of a station can be checked
with meter © when switch © Is in the depressed
position.
e The condition of the supply batteries can be
checked with meter @ when switch @ is in the
unlocked position. See also under the heading
SUPPLY.
Tuning
There are several ways of tuning:
• If the exact frequency of the transmitter is known
beforehand:
- by keying in the desired frequency on the frequen¬
cy keybord (§), followed by EXECUTE.
The desired frequency appears on the display ©.
• If only the desired waverange is known, but NOT
the exact frequency of the transmitter:
-by depressing one of the 14 waverange preselec¬
tion buttons 0. followed by either tuning with tuning
knob ©, or automatic search with button ©.
Tuning with the frequency keybord @
Via frequency keybord @ each desired frequency
can be selected directly.
Example: the desired transmitter transmits at
5955 kHz (5.965 MHz).
• Successively depress the digits 5 - 9 -5 - 5 and
then ‘EXECUTE’. Now the desired frequency ap¬
pears on the display©: 5955 kHz, the LED indicator
with the corresponding waverange button © (49 m)
will light up and the transmitter becomes audible if
it is in the air and can be received locally.
You can also key in 5 -. - 9 - 5 - 5 followed by
EXECUTE'.
You will receive the same transmitter but this time
5.955 MHz appears on the display.
Important: When keying in a frequency in the FM
range, you should give the frequency in MegaHertz.
Examples: for 98.0 MHz you may depress only
9 - 8 - EXECUTE.
On the display © appears 98.00 MHz, the LED
indicator with the corresponding waverange button
© (FM) will light up and the transmitter becomes
audible if it is in the air and can be received locally.
For 98.7 MHz you depress successively
9-8-.-7-EXECUTE.
On the display © appears 98.70 MHz and the
transmitter becomes audible.
If you depress successively 9 - 8 - 7 - EXECUTE,
the set will tune to 987 kHz In the medium wave-
range.
Remark: If you key in an incomplete frequency or a
frequency which is outside the range of the
receiver, the word ’Error' will appear on display ©.
The set will ignore the input and will remain on the
preceding frequency. The diplay© will automatical¬
ly return to the preceding frequency after a few
seconds.
Waverange selection and indication
By depressing one of the 14 waverange preselec¬
tion buttons © the set is automatically tuned to the
lowest frequency in that particular waverange.
The LED indicator on the left side of each wave-
range button © will glow to indicate that particular
waverange. When two LED's are glowing, it means
that the frequency is between two waveranges.
Example: When the frequency 6746 kHz is chosen,
both the 49 m LED and the 41 m LED will glow.
Under the heading WAVERANGES' the bounda-
nes of the bands are given.
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