Isle of Man Repeater Group

Snaefell Repeater Upgrade - Implemented 20th June 2009



PRF1060 Image

After nearly 20 years of continuous service, the Burndept BE454 base station, which was at the very heart of GB3IM, has been replaced.


The replacement radio is a Philips/Simoco PRF1060 (Pictured to the left).

Initially, this radio will operate as a standard PMR repeater, with internet connections made via a remote "Trigger Station".

The radio is specified for continuous transmit operation at an output power of 15 watts. The availablilty of higher power levels than the 5 watts that we were able to squeeze from the Burndept, means that we can get closer to our authorised output of 25 watts ERP.

Early user reports have indicated that the new radio has brought a significant Improvement in coverage and communications quality.



The upgrade brings to an end the use of 1750Hz tones as a means of accessing the repeater.

From now on, the only means of access will be by the use of CTCSS at 110.9Hz.

The repeater requires CTCSS not only as a means of opening it from "cold", but also as a means of keeping it in talkthrough. If CTCSS is absent from an incoming transmission, nothing will be relayed. (The first "C" of "CTCSS" stands for continuous - and for a good reason!)

Internet Linking

GB3IM-R is registered with EchoLink, node number 464453.

Connecting from an Echolink station will establish a connection to the Snaefell node. From there, the pre-existing AllStar Links between the IOM nodes will enable the EchoLink caller to be heard from any of our sites.

Note that, because only the Snaefell node is registered with EchoLink, outgoing connections to other EchoLinknodes can only be made via Snaefell.

Links to other AllStar Link nodes can be made from any IOMRG node.

IRLP interconnection is not implemented as yet. If you would like to see an IRLP gateway set up, please let the repeater keeper know.