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This is the callsign that I was assigned
by the French Telecom administration.
It is personal.
It means that I have passed the exam to obtain the radioamateur licence. It
identifies my station when I send on the air.
All radioamateurs around the world have got a personal callsign. The very first letters
and figures of the callsign identify your home country (F for France, G for England, K, N or W for the United States,
U or R for Russia, BY for China, JA for Japan etc).
These first characters are the prefixes.
You may find the same prefixes in airplanes identifiers.
To know more :
https://www.arrl.org
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CB (Citizen Band) is the free usage of the
27 MHz band with limited power and without any chat
constraint.Radioamateurs use several dedicated frequency bands all
over the radio spectrum, fromshort waves to laser waves.They
experiment new techniques of radiocommunication and concepts of
transmission :analog and numeric transmissions, phone or image,
directly or through terrestrial and satellite repeaters, etc. The
communication content must relate to radio topics.Each radioamateur
is authorized to send on the air by his own administration after
takingan exam in order to control his knowledge of radiocommunication
: rules, laws and radioelectricity theory.
To listen to the Morse
alphabet click
here
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My station F6DQM
(all joined documents in french)
- Emitters-Receivers
- HF : IC 730, HF transceiver
ICOM , 100 watts, 12 volts
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How to modify the IC-730 to get the WARC bands on
transmit
- VHF : IC 290D, VHF transceiver ICOM , 25 watts
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Modifications of the ICOM 290D
- UHF : ATR 680, Alcatel, 16 channels, 10 watts
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Modification of the ATR680
to implement a 1750 Hz tone
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Some stuff to program the ATR680
- 50MHz/VHF/UHF : IC-E90, pocket, 5 watts, wide range
receiver
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Modification of the IC-E90
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IC-E90 user manual in french
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- Antennas
- HF : 20 meters long ware with a 9/1 impedance transformer
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Impedance transformer for a long wire antenna
- VHF, COMET vertical colinear 2.5m and HB9CV
- UHF, COMET verticale colinear 2.5m
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- Miscelleneous
projects
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12 volts / 25 amps power supply
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My first HF limear amplifier
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Tiny 1 amp power supply for lab
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A VHF vertical antenna 5/8
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My first elecronic keyer
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Electronique keyer with CURTIS 8043 circuit
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Parrot
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Simple analog capacimeter
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Battery saver
My
programs are free. If you like them and think that they may be usefull,
don't hesitate to visit the links that are displayed on my
pages. This free contribution will help me to maintain and improve my programs.
Many thanks in advance.
Dernière révision :
mai 30, 2025.
