What is Ferring Radio Operators’ Group?

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Ferring Radio Operator’s Group is a group that has been set up to run the GB7FR DMR repeater in Ferring, as well as to promote Amateur Radio in the local community.

One of our core aims is to encourage more young people to get interested in science and technology through Amateur Radio. To this end, we hope to work with Sustainable Sussex which is run by a good friend of mine, in offering training, mentoring and hopefully also a Hackspace.

Please see the blog posts for news and updates.

73 de Simon – G7RZU (Keeper – GB7FR)

Desense?

It wasn’t until I put a scope on the ADC pin on the Due that I noticed there was a bit of low-level desense showing up on the the repeater. The TX and RX radios were sitting one on top of the other. I have separated them by a few cm and the desense appears to have gone. I wonder if this will make the repeater perform a bit better with weak signals….

Listening watch

In the event of weather causing a localised or more widespread communications loss locally (mobile, internet etc), I will keep a listening watch on TG23510 (South East) on S1 of the repeater and I would ask other users to consider doing the same. You never know when someone might need it.

If you’re venturing out in this weather, grab your radio on the way out; it can’t hurt!

Changes to XLX reflectors

It is now possible to connect to all of the modules on all of teh XLX reflectors listed here.

This works as follows:

To change XLX reflector – prefix with 68 – e.g. to connect to XLX235, you send a private call to 68235.

To change XLX module, it’s the same as before, e.g. 64001 connects to module A, 64002 to module B etc.

You should hear voice prompts when you do this.

Many of these reflectors have a D-Star <->DMR transcoder, so you can talk to D-Star users.

 

Saving up for new antenna.

I’ve been thinking about the antenna for FR. I have decided to seek to fund a new antenna with greatly increased gain. It will be big, apparently a full 17ft tall, but this will also provide an advantage. It has about 12dbd gain. Also, it has more gain at the horizon than the current antenna and a narrow vertical beam width which, considering that FR is not sited at a high point, will likely provide better coverage.

A further update on new functionality

SMS, Parrot etc are now all working as expected.

XLX reflectors have moved to TG6, with a prefix of 6 before the commands – e.g. 64005 to connect reflector E on XLX 950.

I have chosen to use a different TG and prefix for each network, so that contacts for private calls in your radio don’t clash as most radios won’t let you have two different named contacts with the same ID. So:

TG 6 slot1 – XLX sytem – prefix 6 to commands
TG 7 slot1 – as yet unused. Reserved for another XLX connection
TG9 slot1 – linked to PK and BH as before
TG23510 slot1 – SouthEast TG

TG8 slot 2 – DMR+ reflectors. Prefix 8 to commands. Defaults to disconnected.
TG9 slot 2 – BrandMeister – no prefix required.

Private calls, SMS and UA talkgroups on either slot are directed to/from the BrandMeister network.