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# The Martello Tower Group

Providing amateur radio services in the Tendring and Colchester areas

## Sitemaps

- [XML Sitemap](https://martellotowergroup.com/sitemap.xml): Contains all public & indexable URLs for this website.

## Pages

- [The Martello Tower Group](https://martellotowergroup.com/) - The Martello Tower Group - An amateur radio group based in St. Osyth, near Clacton-on-Sea, Essex (JO01mt)
- [Repeaters](https://martellotowergroup.com/repeaters/) - GB3TEChannel: RV62Output: 145.7750 MHzInput: 145.1750 MHzCTCSS: 67.0 Hz (A) GB3CLChannel: RB09Output: 433.225 MHzInput: 434.825 MHzCTCSS: 67.0 Hz (A) GB3CEChannel: RB14Output: 433.350 MHzInput: 434.950 MHzCTCSS: 67.0 Hz (A) You can listen to GB3CL live by clicking here. Repeater upkeep There is no official repeater group for our repeaters but if you would like to make a donation to the Martello
- [Donate](https://martellotowergroup.com/donate/) - How to donate and a list of people who have made donations to the Martello Tower Group
- [What?](https://martellotowergroup.com/what/) - A list of all the services provided by the Martello Tower Group for radio amateurs in the Tendring and Colchester areas
- [Slow Scan and Fast Scan TV](https://martellotowergroup.com/slow-scan-and-fast-scan-tv/) - Information about MB7TV and GB3CZ, the SSTV repeater and FSTV beacon operated by the Martello Tower Group
- [GB5RC 2017 Report](https://martellotowergroup.com/gb5rc-2017-report/) - A detailed report about the special event station GB5RC from August 2017, celebrating five decades of offshore radio broadcasting, operating from MV Ross Revenge, home of Radio Caroline
- [Who?](https://martellotowergroup.com/who/) - Who are the members of the Martello Tower Group?
- [GB7TE: D-STAR Repeater](https://martellotowergroup.com/gb7te-d-star-repeater/) - Information about the D-STAR repeater operated by the Martello Tower Group, GB7TE
- [DX Cluster](https://martellotowergroup.com/dx-cluster/) - The g6nhu-2 uk based dx-spider is run by Keith, G6NHU, secretary of the Martello Tower Group
- [G0PKT/B - CW Beacons](https://martellotowergroup.com/g0pkt-beacons/) - Amateur radio CW GPS locked propagation beacons on the 30m, 10m and 6m bands, transmitting G0PKT/B from JO01MT every ten minutes.
- [WSPR - Weak Signal Propagation Reporter Network](https://martellotowergroup.com/wspr-weak-signal-propagation-reporter-network/) - “The Weak Signal Propagation Reporter Network is a group of amateur radio operators using K1JT’s MEPT_JT digital mode to probe radio frequency propagation conditions using very low power (QRP/QRPp) transmissions.” Since 8th July 2013, 17th September 2013 and 3rd June 2021 we have run WSPR beacons on 30m, 10m and 6m respectively. As of February
- [QRSS - Very slow Morse code](https://martellotowergroup.com/qrss-very-slow-morse-code/) - Information about the G0PKT QRSS (very slow Morse code) beacons operated by the Martello Tower group and the G0PKT QRSS grabber.
- [GB7CE: Fusion/Analogue Repeater - NOW QRT](https://martellotowergroup.com/gb7ce/) - Please note that GB7CE is now QRT
- [AX25 Packet Radio](https://martellotowergroup.com/ax25-packet-radio/) - Information about MB7UCL, MB7UCE and MB7UIV, the APRS digipeaters operated by the Martello Tower Group.
- [Repeater map](https://martellotowergroup.com/repeater-map/) - Map of repeaters operated by the Martello Tower Group
- [GB7CL: DMR Repeater](https://martellotowergroup.com/gb7cl-dmr-repeater/) - Information about the DMR repeater operated by the Martello Tower Group, GB7CL
- [ADS-B](https://martellotowergroup.com/ads-b/) - Details of the ADS-B station installed at the Martello Tower
- [GB3PKT: 10 GHz beacon](https://martellotowergroup.com/gb3pkt-10-ghz-beacon/) - Information about GB3PKT, the 10 GHz beacon operated by the Martello Tower Group
- [GB55RC ](https://martellotowergroup.com/gb55rc/) - GB55RC celebrating fifty five years of Radio Caroline and GB5RC celebrating five decades of offshore radio broadcasting.
- [The ClackPak 'node'](https://martellotowergroup.com/the-clackpak-node/) - ClackPak, CLSX22, CLSX40, G3CRC-3, G3CRC-4
- [GB5RC 2016 Report](https://martellotowergroup.com/gb5rc-2016-report/) - A report of the 2016 special event station GB5RC, celebrating five decades of offshore radio broadcasting, operating from MV Ross Revenge, home of Radio Caroline