MB7IFR - How does the link work?

When a local amateur radio enthusiast operates on the link frequency, anything transmitted is received by the radio at MB7IFR and relayed to the "connected" station(s), courtesy of the Internet. Likewise any transmissions from those those same stations/links are sent back to MB7IFR and relayed (transmitted) back locally on the local link frequency. You could say it's a kind of trunked radio system?

Linking Example..

Before you can use the link (via local RF), you must first connected it to another station? This is done using DTMF tones, which control the link? Available control tones are as follows..

A list of stations (and associated node numbers) can be found on the "Echolink logins page". (External link)

The link operates simplex and therefore NO repeater shift (split frequency) is required.

A courtesy "K" tone also activates after a local station has finished talking. This only works when the link is connected to something, but allows a user to know the link is in use by another local RF station? (Remember, simplex.. means one local user may not be able to hear another local user, but both can hear the link just fine).

It is also worth noting that as the link uses simplex operation, it means it can NOT be "brought up" with a mic key or a whistle (1750hz tone) like you might with a conventional RF repeater system?

Further information about the link can be found on the Frequently Asked Questions page here.

Enter Node number	Connects to Node (2605 for IRELAND Conference)
#	Disconnect last station to connect
##	Disconnect ALL stations connected
08	Status
09	Reconnect to last station