FRN News

FRN Open Protocol
MidWinter on Free Radio Network
JOTA-JOTI 2011
Live DDF plotter with Google Maps
Experiments with 70 cm gateway
FreeRadioNetwork seen on youtube
Cup with financial boost for FreeRadioNetwork

JOTA-JOTI 2011
During the JOTA-JOTI 2011 (Jamboree on The Air and The Internet) PA7FRN was at the Dutch Scouting Haagse Beemden in Breda, together with Harm PA3AST. This Jota station was active on the 2 meter band and on shorte wave with the call PA3AST/J.

The short wave was worked with Software Defined Radio (SDR). Meer on this technique can be found on the website of PE0SSB.

In our Online Log you find the 77 QSOs we made. We also took part in the JOTA-Night-Contest on 2m and managed to get 75 points.

A PMR446-gateway was operational at location on kanaal 3 with ctcss 20 (131.8 Hz).
More info can be found here.

Live DDF plotter with Google Maps

Doppler Direction Finders track HF signals using the doppler effect. This effect is the behavior of the frequency increment if trinsmitter and receiver travels towards one another and decreases if the distance increases. DDF trackers make use of 4 fixed antennas. By switching between the antennas a virtual rotating antenna is created. The signal from the fm receiver is a sinus with the same frequency as the signal that drives the antenna switches. The fase shift between these signals is the direction where the transmitting source is located. By combining the results of different trackers, a cross can be realised to obtain the location of the transmitter. The trackers need to be installed at different locations and communication to a server is needed in order to collect the data. This gives the possebility to show the results real time on a map on the Internet. A small version of the doppler viewer is displayed at the left hand side. Click on the 'large version' link to go to the screen wide version. More information on the DDF Tracker can be found at www.pe0ssb.jentronics.nl.

Experiments with 70 cm gateway
A gateway is now operational in the 70 cm band. It is online at ham.freeradionetwork.nl in room World. The gateway is in experimental stage with my 24 hours supervision in order to avoid unwanted interference. It is a remote link to PI2BRD, the 70 cm repeater in Breda, the Netherlands.
The gateway is not connected to the D-Star room, since analogue links are not allowed on the D-Star Plus software. Hopefully more gateways will follow.

See main website for information on client software.
Gateway info:
PI2BRD
Repeater output 430.3250 MHz
Repeater input 431.9250 MHz CTCSS 71.9 Hz

FreeRadioNetwork seen on youtube
Sometimes when the weather is rainy and I have nothing else to do, I search the internet for videos on FreeRadioNetwork. Always interesting seeing how people promote their server, show there gateway setup or doing range testing.
Here are some interesting links:

QSO4YOU

Frank
Audio a little to loud, hope Frank will re-do this once.

simonthewizard

nl13200

revdns2008

MPT002

ChRiStHeTuNeR1993
Don't know what he wants to do with the PTT. A button can be connected to the comm-port, but to be continued ...

Your video follows? ;)

Cup with financial boost for FreeRadioNetwork
10th November our German FRN friends visited us. Gunthard/ Kermit1942 and Manfred/ DAC351 came not with empty hands!. We got a nice cup. This cup is given by the Deutsche Funk-Allianz (DFA) to the FRN community. The cup was filled with 540 Euro collected by German FRN users. Frank, Rody and Edwin have plans to spend this money on FreeRadioNetwork. It was fun having our friends visiting us. For more information and pictures: www.deutsche-funk-allianz.de