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Table of Contents
Web SDRs
Kelvedon Hatch Secret Nuclear Bunker
HF Receiver
The HF receiver is a KiwiSDR coupled with a wideband WellGood Loop receiving antenna. It covers from DC (well, around 5 kHz) to 33 MHz.
VHF-SHF Receiver
The antenna is currently a Diamond V2000A at 45m above ground (~135m above sea). The bands and frequencies covered are listed below; bands marked with an asterisk (*) may later be configured to have switchable segments within the band.
6m (50 – 52 MHz)
4m (70 – 72 MHz)
2m (144 – 146 MHz)
70cm (432 – 434 MHz)*
23cm (1296 – 1298 MHz)*
Reading
OpenWebRX SDR covering 6m, 4m, 2m, 70cm. Location: Sonning, east of Reading, Berkshire.
Hertfordshire
This WebSDR is using RTL Dongle receivers on all bands, on VHF and UHF the antenna is Diamond V2000. The 4 meter vertical antenna is a Siro CX-4-68 4M, located IO91tp. It is operated by M0XVT and G3VHH.
Goonhilly
This WebSDR is hosted at Goonhilly Earth Station in Cornwall at 50.0524°, -5.1823° (IO70JB). The WebSDR was upgraded in September 2022 for additional amateur bands.
Focus is satellites.
- 144-146MHz - 2m turnstile for satellites
- 435-437MHz - 70cm turnstile for satellites
- 1296-1298MHz - 23cm - 13 element Yagi for tropo monitoring
- 2320–2321MHz - 13cm - 21 element Yagi for tropo monitoring