On this page, you’ll find some basic information about D-Star, and some handy information for those in and around Essex.
What is D-Star?
Most amateur radio voice chat is analogue. D-Star is one of the relatively new Digital Voice (DV) modes.
D-Star is championed by manufacturer Icom. Other DV formats include DMR (Motorola and others) and Fusion (Yaesu)
D-Star offers some strong advantages over analogue voice:
- Connectivity around the world using the Internet
- Can be used to GPS positioning information
- Automatic logging of callsigns, plus online logs of traffic
- Digital audio quality
- Option to set your radio to “Call Squelch”, so you will only receive calls for you.
- Reflectors (Regional ‘chatrooms’)
Using D-Star
You’ll need a D-Star radio – they’re made by Icom, and they’re not cheap – Prices for a typical D-Star handheld are around £300.
Setting up a D-Star radio can be tricky, as you are required to program extra settings for each repeater, and also set the radio to transmit your callsign in text format.
One of the benefits of D-Star, is that you can link your radio and your repeater to others over the Internet. You could be driving around Chelmsford, connected to the Danbury D-Star repeater, talking to someone driving around New York. Before you can use the Internet connectivity, you have to be registered on the D-Star network (See D-Star Registration in Essex)
D-Star Repeaters In/Around Essex
Here is a list of the D-Star repeaters in Essex, together with their settings.
Note that “RPT” columns contain two blank spaces, shown here as underscores.
| Repeater | Location | Output | Input | Offset | “YOUR” | “RPT 1” | “RPT 2” |
| GB7ZP | Chelmsford | 439.4875 | 430.4875 | -9.00 | CQCQCQ | GB7ZP__B | GB7ZP__G |
| GB7SS | Hockley | 439.7375 | 430.7275 | -9.00 | CQCQCQ | GB7SS__B | GB7SS__G |
| GB7KH | Kelvedon Hatch | 439.6125 | 430.6125 | -9.00 | CQCQCQ | GB7KH__B | GB7KH__G |
| GB7TE | Clacton | 145.775 | 145.175 | -0.6 | CQCQCQ | GB7TE__C | GB7TE__G |
| GB7OK | Bromley, Kent | 145.7125 | 145.1125 | -0.6 | CQCQCQ | GB7OK__C | GB7OK__G |
D-Star Gateways In/Around Essex
The following is a list on D-Star Gateways. A gateway is not the same as a repeater – it provides access to the D-Star network, and is simplex.
Note that “RPT” columns contain two blank spaces, shown here as underscores.
| Repeater | Location | Output | Input | Offset | “YOUR” | “RPT 1” | “RPT 2” |
| MB6CE | Chelmsford | 144.8125 | 144.8125 | 0.00 | CQCQCQ | MB6CE__C | MB6CE__G |
| MB6ZZ | Basildon | 144.8625 | 144.8625 | 0.00 | CQCQCQ | MB6ZZ__C | MB6ZZ__G |
| MB6SE | Shoebury | 144.850 | 144.850 | 0.00 | CQCQCQ | MB6SE__C | MB6SE__G |
| MB6CL | Clacton (70cm) | 430.1875 | 430.1875 | 0.00 | CQCQCQ | MB6CL__B | MB6CL__G |
| MB6DS | Clacton (2m) | 144.8375 | 144.8375 | 0.00 | CQCQCQ | MB6DS__C | MB6DS__G |
Icom IC-E92D Information
How to set the E92D to transmit APRS data using the optional GPS mic: gb7wc.ukace.co.uk/D%20APRS.htm
Handy Links
- D-Star Settings Calculator
- Last Heard on D-Star – A list of who’s been heard using D-Star around the world (handy for testing)
- List of worldwide Reflectors
- Repeaters in Essex
Got a question on D-Star in Essex? Please ask below…
Having problems with DStar. It seems that my new Icom ID 4100 E can’t be registered on a Repeater to allow it to work. I put the repeaters on the SD card OK. Cloned the settings into the Radio Ok. Applied to be registerd on a repeater and was told it was OK. When I checked I was told
They may report that: Registration NOT OK! (IP outside of assigned pool!) or something similar. This is because the Trust Server and our GB7IC Gateway are using an updated version of system software.
Which is exactly what I received when I checked up.
No registration, so not able to talk with anyone. I can hear people talking. Since I became a Radio Amateur to avoid being a short wave listener, I don’t think much of this radio.
Anyone any ideas, so far I’m out of pocket over £500 on a non working DStar radio