User manual

23
Trouble shooting
Your radio set does not receive any response to your trans-
mission or reception is poor:
Correctly adjust the SQ control!
Adjust the VOL control to an appropriate playback volume.
Make sure that you are using the same modulation mode (AM or
FM) as your contact partner!
Reset
Switch the radio set off.
Hold the down and the A/F keys pressed simultaneously and
switch on the radio set again: the radio is now set back to factory
setting (attention: all individual settings will be deleted!).
Tips on radio communication
After switching on the radio set, always listen first whether the set
channel is free (To do so, deactivate the squelch function such
that you are also able to hear weaker radio stations.)! Start your
own call only if the channel is absolutely free.
Transmit nothing but short calls! After each call carefully listen to
a station possibly answering your call. Repeat your call only after
having carefully listened.
After each transmission of your contact partner wait for several
seconds before answering in order to give further radio stations
the chance to participate in the radio communication (change-
over delay).
International phonetic alphabet
When the radio contact is weak or intense interferences occur, it
is quite often difficult to understand everything perfectly, as e.g.
proper names or geographical names.
In this case, you can fall back on the international alphabet which
is also applied in air traffic (ICAO) and NATO communications:
A Alpha H Hotel O Oscar V Victor
B Bravo I India P Papa W Whiskey
C Charlie J Juliett Q Quebec X X-ray
D Delta K Kilo R Romeo Y Yankee
E Echo L Lima S Sierra Z Zulu
F Foxtrott M Mike T Tango
G Golf N November U Uniform
Evaluating the reception quality
For informing the respective contact partner clearly on the strength
and quality of reception, the numbers of the R/S code are used.
The R-value is used for comprehensibility (readability) and the
S-value (signal strength) for signal strength and/or volume of the
contact partner.
Readability Scale
1 Hardly perceptible; unreadable
2 Weak; readable now and then
3 Fairly good; readable but with difficulty
4 Good; readable
5 Very good; perfectly readable
Signal Strength Scale
1 Unintelligible; barely perceptible
2 Weak signals; barely readable
3 Weak signals; but can be copied
4 Fair signals
5 Fairly good signals
6 Good signals
7 Moderately strong signals
8 Strong signals
9 Extremely strong signals