Tag Archives: ircDDB Gateway

Decibel Products 4 channel hybrid combiner

A Decibel Products 4 channel hybrid combiner is now used to combine all 4 of our UHF repeaters transmitters so only a single antenna is required!

This is a very expensive piece of equipment which we had to import from the USA.

It was well worth the expense as it works so well.

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MMDVM GB7WB

Brandmeister DMR on GB7IT

GB7IT is our DMR repeater which is connected to the Brandmeister network.

We are using a Yaesu DR-1X repeater with an MMDVM KI6ZUM radio pcb for raspberry pi board plugged into the rear 15w HD connector of the DR-1X.
The MMDVM is run by a tiny Raspberry Pi 4 computer with the Pi-Star image installed.

You can now operate through GB7IT on 439.5125 MHz with a -9 MHz TX shift using DMR.
You listen on 439.5125MHz
You transmit on 430.5125MHz

On DMR use timeslot 2, talkgroup 91 and colour-code 1 to talk to the World via the brandmeister network.
The UK chat channel is on TimeSlot 1, TalkGroup 2350, colour-code 1.

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Unfortunately our big 80m dipole is held up by a hilomast, which continuously lets us down.
If you are ever tempted to buy a hilomast, then please think again.
The design is very poor, and the cost of replacement gaskets is incredibly high.
SMC communications, South Midlands Communications has the monopoly on all the spares.
They charge £20 to post a small envelope containing the gaskets!
SMC couldn’t be more awkward or slow in dealing with our order.
Please do not buy a hilomast, as you will be left very disappointed!

GB3IE FX5000 Dual-Mode D-Star GMSK ircDDB Gateway & FM Repeater On Test

GB3IE Dual-Mode D-Star GMSK & FM FX5000 Repeater

GB3IE Dual-Mode D-Star GMSK & FM FX5000 Repeater

The Weston Repater Group recently completed a new dual-mode D-Star GMSK ircDDB & FM repeater for Plymouth. GB3IE is now on test in Plymouth, and will hopefully be in full dual-mode service very soon when its new NoV arrives.

GB3WB GB7WB & GB3WE Now All Using FX5000 Repeaters

GB3WE GB7WB GB3WB FX5000's

GB3WE GB7WB GB3WB FX5000's

All of our FM analogue and D-Star GMSK DV-RPTR repeaters are now using FX5000 base-stations.

GB3WE GMSK D-Star Repeater Using DV-RPTR Modem

GB3WE GMSK D-Star Repeater Using DV-RPTR Modem
Audio control board details

GB7WB & GB3WB Both Using DV-RPTR Modems For GMSK D-Star

GB7WB & GB3WB Both Using DV-RPTR Modems For GMSK D-Star.
Both of our D-Star repeaters have now moved over to DV-RPTR modems and are controlled by Jonathan Naylor’s latest beta software.
Get more details of the DV-RPTR modems here: http://www.dvrptr.de/
Find out about Jonathan’s G4KLX repeater software here: http://db0fhn.efi.fh-nuernberg.de/~g4klx/
Both repeaters are operating better than they ever have and don’t suffer from any problems.

GB7WB GB3WE Use Your DTMF Keypad To Connect D-Star Reflectors

While using either GB7WB or GB3WE Use Your DTMF Keypad To Connect D-Star Reflectors …

The available commands are:

# for unlinking
0 or 00 to trigger the info message
*1C or *01C or *001C to link to REF001C
1A or 01A or 001A to link to XRF001A
D5B or D502 to link to DCS005B

GB3WE February 2012 Tower Configuration