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Fusion Repeaters

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Dual Mode

A Yaesu Fusion repeater is called the DR-1XE.  It can be configured as VHF or UHF.  Its maximum RF power is 50W.  It requires suitable filters in the aerial connections.  For the 2m VHF band with a standard 600 kHz repeater shift, the duplexer filters are expensive.  It can be powered from mains electricity and supplied with a (huge) 12V backup battery which must supply 14A if the repeater is configured for 50W RF.

Like Fusion hand portable or mobile radios, repeaters have AMS - Automatic Mode Selection.  When a signal is received, the repeater knows if it is standard analogue FM or Fusion digital.  Such repeaters can therefore be used by FM mobiles or Fusion digital mobiles.  If Fusion digital mode is in use, mobiles in repeater range who have only standard FM and no CTCSS will hear a buzzing humming digital sound.  CTCSS can be used with FM, but not really with digital.

Like FM-only repeaters, a Fusion repeater is intended to increase the range of hand portable and mobile stations.  The repeater may or may not have an internet connection.  Such a connection could be a standard Ethernet cable or Wi-Fi method or it could be by a separate radio frequency in the 2m or 70cm band.

Internet Linked

The internet linking facility is very similar to a Fusion internet gateway access node.

New Unofficial UK Standard

There is a trend to identify UK Fusion stations by appending characters seen in lists when using Fusion digital mode, e.g. GB3TW-RPT means a dual mode FM and Fusion digital repeater.  MB6INE-GW means a single frequency Fusion digital internet access node licensed with a UK Notice of Variation (NoV) as attended or not, for all to use.  G1ABC-ND means a Fusion digital node which is not licensed for anybody to use via radio.  Such nodes have an internet connection and the radio side has a 50 Ohm dummy load instead of an aerial.  Only the node owner can use it as he has to be within several yards of the dummy load to use the radio aspect.  Such nodes are owned by people who want to get used to how to configure and operate a gateway node and so test and practise before applying for a NoV.

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Page updated on 09 January 2017

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