Jean-François FOURCADIER

Montpellier  (France)

ham projects

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© 2000-2004- J.F. Fourcadier
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high speed data television antennas microwaves repeaters miscellaneous

Amateur Television
and high speed data signalling

last update : May 21th, 2002

The newness of this site

- A two tone generator to check the linearity of the components of a video transmission chain

- A good pre-emphasis for the Comtech TV module !

Experimental 2 Mbit/s modem (receiving part)
This article follows the set of articles "High speed data signaling project (2 Mbit/s)", on this website. We describe here the receiving section of the modem.

Building an omnidirectionnal antenna for the 23 cm band. A slot antenna quick and easy to build.

A simplified video control box, to manage the switchings in a small ATV station.

The "twist" oscillator
A 2.3 GHz oscillator, frequency modulated, build with components of your junk box.
You can use it as a little 13 cm transmitter or exciter

The preemphasis
What is the preemphasis of FM TV signals ? How is the preemphasis carried out ?

Building a wideband repeater
Presently we are building a repeater usable for amateur television (ATV) and data transmissions

Did you say FHD22 ?
Discarded equipment, for 2.3 GHz enthusiasts only.

The 1.2 GHz "express-pizza" antenna
A directive antenna for the whole 23 cm band, you can build in 15 minutes.

Modifications of a standard satellite head, for 10 GHz  receiving
The informations you need to modify yourself a standard satellite head.


B5+ et 73 de Jean-François Fourcadier, F4DAY

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As you can guess, english is not my mother-tongue. If you are living in UK or in the USA or in another english language country, you can help me to improve the quality of my website. Just send me an email with the mistakes you have detected (the biggest first ! ). Even one or two corrected sentences will be greatly appreciated. Thank you for your help !

© 2000-2004  J.F. Fourcadier F4DAY