Welcome to IRLP & The D-Star Team GB7SF

TX 145.7375 RX 145.1375 Sunday May 18, 2008

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The GB7SF D-Star Repeater Group Sheffield UK

GB7SF will Soon have 70cms on port B Installed

The home page of GB7SF here in Sheffield UK.

If you click on the buttons on the left you will find information about our GB7SF D-Star repeater, its history and how to use it. We also have included a feedback button to give visitors the opportunity to ask the team anything about GB7SF and to provide reports and comments (good or bad ) concerning the operation of GB7SF.

GB7SF a D-Star Repeater here in Sheffield, GB7SF will have both 2m and 70cms repeaters located at the same site

We are hoping to eventually install the 23cm Voice and the 23cm Data Modules later.

This will give high Speed Data from the GB7SF Repeater

That means you can surf the internet from your Car with your radio & your laptop....

What D-Star is about

D-STAR transfers both voice and data via digital encoding over the 2 m (VHF), 70 cm (UHF), and 23 cm (1.2 GHz) amateur radio bands. Voice is encoded as a 3600 bit/s data stream using proprietary AMBE encoding, with 1200 bit/s FEC, leaving 1200 bit/s for data encoding. On air bit rates are 4800 bit/s over the 2 m, 70 cm and 23 cm bands. Digital only data can be sent at 128 kbit/s only on the 23 cm band. Radios providing data service use a RS-232 or USB connection for low speed data (1200 bit/s) and Ethernet for high speed (128 kbit/s) connections to allow easy interfacing with computer equipment.

ICOM D-STAR equipment

Transceivers:

	Icom ID-1 - 23cm Digital Voice and Digital Data mobile transceiver. Power is selectable at 1W or 10W. USB Control port and Ethernet connection for data.
	Icom IC-2820H/IC-E2820 - 2m/70cm twin band Digital Voice mobile transceiver. Power up to 50W on each band. May be purchased with or without D-STAR module. The D-STAR module includes a built-in GPS receiver with accompanying antenna.

Icom ID-800H - 2m/70cm dual band Digital Voice mobile transceiver. Power up to 55W on 2m and 50W on 70cm.

Icom IC-92AD - 2m/70cm twin band Digital Voice hand held transceiver. Four power settings up to 5W on each band. Rugged and submersible design, optional microphone with embedded GPS.

Icom IC-91AD/IC-E91 + D-STAR - 2m/70cm twin band Digital Voice hand held transceiver. Power is selectable at 0.5W or 5W on each band.

Icom IC-2200H - 2m single band Digital Voice mobile transceiver. Power up to 65W. Must purchase optional D-STAR module.

Icom IC-V82 - 2m single band Digital Voice hand held transceiver. Power up to 7W. Must purchase optional D-STAR module.

Icom IC-U82 - 70cm single band Digital Voice hand held transceiver. Power up to 5W. Must purchase optional D-STAR module.

Note: All mobile/hand held radios may also be used on traditional analog FM.

Repeater Equipment:

Icom ID-RP2000V - 2m Digital Voice repeater.

Icom ID-RP4000V - 70cm Digital Voice repeater.

Icom ID-RP2V - 23cm Digital Voice repeater.

Icom ID-RP2D - 23cm Digital Data access point.

Icom ID-RP2C - Repeater controller. Can support up to 4 Digital Voice Repeaters/Digital Data access points. Required to operate any Icom D-STAR Digital Voice repeater or Digital Data access point.

Kenwood D-STAR equipment^[4]

Transceivers:

	Kenwood TMW-706S - 2m/70cm dual band Digital Voice mobile transceiver. Power up to 50W.
	Kenwood TMW-706 - 2m/70cm dual band Digital Voice mobile transceiver. Power up to 20W.

GB7SF Album

Look at online photo album filled with pictures of GB7SF , and the Team/Group in Sheffield

This site was last updated 05/18/08 The Site is Copy right to the GB7SF Repeater Group Sheffield 2008