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HAM emergency communication on local repeaters.
Gateways, connected to the FRN
Network, give a bigger range to portable/mobile radios. These
gateways are situated on different locations. Everything that is
received by one gateway is send to other gateways over the internet.
The other gateways retransmit the received signal.
The gateways use the FRN
Client software and are connected to a FRN server. A group of
connected gateways is a net. Different nets can be active on one
server. Everybody within the range of a gateway can communicate with
other people in another country or city, just by selecting the
correct channel and CTCSS. CTCSS 20 is the most used tone code.
With the program FRN
Client, a portable/mobile radio and some electronics you can set
up a gateway yourself. You can also use the program with your PC-microphone to
talk with other users on the network, without the need of a
A FRN Client for Android can be found here.