Tag Archives: ircDDB Gateway

GB3WE VHF repeater now an ALLstar analogue FM repeater

All five of our VHF and UHF analogue and digital repeaters are off air at the moment.

We urgently need to buy a new dual-band antenna for our repeaters after problems with our original mono-band antennas.

All five of our VHF and UHF analogue and digital repeaters will operate through this new single dual-band antenna.

We need to purchase a VHF/UHF band-splitting duplexer so that this antennas can be used by our VHF repeater as well as our 4 UHF repeaters.

We also need an additional VHF duplexer.

It is now Wednesday, October 24 th 2018 and we still need your support.

If you can help with a donation so that we can put our repeaters back on air properly, then please use the PayPal donate button on this site or use the contact form so that you can use bank transfer or meet up with us.
Any amount will help!

bank details:

81464207
60-23-32

Please email us once you have made a bank transfer and include your callsign so that we know who has made payments to us. Send your email to: info@gb3wb.com

Thank you

People who have sent donations for the new antenna and filters:
G4FUA Graham
MW0GCS Leonard
2W0BBT Sandra
2E1GKY Anne
M6GXH Brian
M0JOG Barry
G1DCG David
G1VSX Graham
G4SZM Andy
M6NQJ Andrew
G0OQT Mike
2W0CGM Nigel
M0WDX Huw
G7RPG Peter
2E0SIP Matthew
GW3WSU Colin
G4LJZ Steve
M6EDH Ed
2E0DZT John
G0LHX Harry
GW8WZR Dave
2W0ZBC Glyn
M6OSR Simon
2WOEUO Alan
MW6RQC Robert
MW0CWF Steve
M6NWQ Dave
G6ZPV Nigel
G0KJF Rick
G8AVK Bob

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Here are some photos taken via the repeater site CCTV of the GB3WB Buzzard who has lived at the site for years.
These were taken on Saturday 9th December 2017.

GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey
GB3WB Bird of prey GB3WB Bird of prey

Weston repeater group Weston repeater group
GB3WB-ALLstar GB3WB-ALLstar

GB3WE VHF repeater now an ALLstar analogue FM repeater!

You can now talk World wide via the ALLstar network using your VHF FM radio.

We are connected to HUBNet which is a very busy network.

HUBNet

M0HOY HUBNet Monitor

ALLstar Network

The repeater is controlled by a tiny raspberry pi 3. This handles the ALLstar connectivity as well as the courtesy tones and logic.

You listen on 145.6875MHz
Use a -600 KHz Split
94.8Hz CTCSS
You transmit on 145.0875MHz

Our UHF FM repeater GB3WB has the same raspberry pi 3 ALLstar system fitted.

You listen on 433.300MHz
94.8Hz CTCSS
+1.6MHz Split
You transmit on 434.900MHz

At the end of each transmission or ‘over’ the analogue repeaters will send one of three CW (morse) letters.

They will send an ‘L’ (.-..) if the last user was a local RF user and the repeater is connected to the ALLstar network.

The repeaters will send an ‘I’ (..) if the last signal was originating from the Internet.

The repeaters will send a ‘U’ (..-) if they are not connected to the ALLstar network and the last user must have been a local RF user.

GB3WE automatically disconnects from ALLstar at 21:15 until 22:15 every night to allow the repeater to be used for a regular net which is run from the Cardiff area and this net has become a great part of GB3WE.

When ever using the ALLstar network please always leave a four second pause between transmissions as this allows the nodes and repeaters to reset. This four second gap also allows others to break into the conversation.

Our two Allstar repeaters are connected to the HUBNet UK network.

Please get in touch using our contact form if you think that any of our 5 repeaters are not working.

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.

Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner
Decibel Products Hybrid Combiner Decibel Products Hybrid Combiner

 

 

Motorola MSF5000 TLE2522 UHF Amplifiers now used on our repeaters

Motorola MSF5000 TLE2522 UHF Amplifiers are now used on our repeaters, because of the massive losses in our 4 channel Decibel Products hybrid combiner which we use to allow all of our 4 UHF repeater to use the same antenna.

In total our Decibel Products hybrid combiner and two TX notch filters put about 10dB of loss into our transmit path.

To get 1w out we need to run 10w and to get 10w out we need to run 100w!

That is why we need big reliable amplifiers which require only 3w of drive to produce 100w.
All of our repeaters have been reprogrammed to run only 3w now which means their PA’s are just ticking over and not even getting warm!

We have also fitted Big 50 Amp ACS758 current sensors to our amplifiers so that our Arduino Mega web server can measure and display the amplifiers performance on a web page.

We have also attached a 7 segment voltmeter display to the green wire in the 6w molex socket so we can see the TX output power forward voltage. This forward voltage is around 8.8v  when the PA is running 100w.
The red wire in the socket is connected to a 100k thermistor mounted on the heatsink to allow you to measure the PA’s temperature. Measure between the red wire and the black wire which is ground.
The brown wire is connected to the 100k thermistor mounted on the dummy load of the circulator.

 

Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
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Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
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Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
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Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB
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Motorola_MSF5000_UHF_Amplifier_GB3WB Motorola_MSF5000_UHF_Amplifier_GB3WB

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 board and TCXO on an Arduino Due plugged into the rear 15w HD connector of the DR-1X.
The MMDVM is run by a tiny Raspberry Pi 3 computer with the KB5RAB image installed.

You can now operate through GB7IT on 439.4875 MHz with a -9 MHz shift using DMR.

On DMR use timeslot 2, talkgroup 9 and colour-code 1 to talk to the World via the brandmeister network.
The local chat channel is on TimeSlot 1, TalkGroup 235145, colour-code 1.

Weston repeater group Weston repeater group
MMDVM GB7WB MMDVM GB7WB
MMDVM GB7WB MMDVM GB7WB
MMDVM GB7WB MMDVM GB7WB
MMDVM GB7WB MMDVM GB7WB
MMDVM GB7WB MMDVM GB7WB
MMDVM GB7WB MMDVM GB7WB

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.