Jean-François Fourcadier, F4DAY

Jean-François FOURCADIER F4DAY Montpellier (France)	ham projects	page d'accueil en français

The page of high speed data signaling

High speed data signaling project (2 Mbit/s),

A standard proposal, a modem, test of data transmission. The transmission uses low cost Amateur Television transmitter and standard satellite TV demodulators.

Data transmitting

- Nyquist filtering

- How to build a pseudo-random data generator ?

- Building a local data generator

Data receiving

experimental 2 Mbit/s modem (receiving part)

Signals and measurements

- the data signals

- biphase coding

- the eye pattern

Interesting links

- the great website of the slovenian hams : http://www.hamradio.si/hid.html

- the website of Victor F1BIU: http://www.ccr.jussieu.fr/physio/f6bvp/thd2.html

- NRZ et NRZI coding by F6CSS: http://f6css.free.fr/nrz_nrzi.htm

- Description of a 1.6 Mbit/s homemade modem "The Utah T1-Rate Modem page": http://www.ussc.com/~turner/t1modem/

- the Tucson Amateur Packet Radio