HAM Radio Club F5KCK
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Callsign F5ZSN
Relay input freq (your TX) 439.650MHz
Relay output freq (your RX) 430.250MHz
Output power 8Watt
Voice timeout 180 seconds
Beacon CQCQCQ every 30min
Modulation DV, 12.5kHz spacing
Availibility 24/7
Locator JN 18 bw 45 NR
City Le Mesnil-le-Roi
County Yvelines (78)

The relay is made with an ICOM STARKITY UHF, a UHF duplexer with a spacing of 9.4MHz and a Diamond X-7000 antenna.

Before using the relay, it is very important to read the documentation from the following links in order to understand how the network works.


Diagram F5ZSN


As you may know, keeping and maintaining a perfectly working relay 24 hours a day demands a considerable invesissment, because of surveillance, technical maintenance or even electricity cost.

As many Ham radio clubs, the club from Sartrouville suffers of the lack of new members and needs your help to keep working.

If you think that this relay is useful for you and want to get involved with its maintenance, we offer you the possibility to make us a donation to help maintaining the relay.

You can send us checks labelled to F5KCK at the following postal address: Radio Club de Sartrouville 78 Quai de Seine 78500 Sartrouville France.

Or you can directly meet us every friday evenings at 9:30pm at the same address.

Or even through internet using the link below:

The crowdfunding that allowed us to build the relay is still available at the following link: Crowdfunding for D-STAR relay F5ZSN

List of donaters

The following is the list of generous donators that we very much thank for their contribution to F5ZSN

Changelog of the relay