GB0SNB is one of few permanent special even callsigns allocated in the UK.
The Kelvedon Hatch Secret Nuclear Bunker, a decomissioned cold-war bunker operated by the UK govenment from 1952 until 1993, is now a museum open to the public. More information about the bunker can be found on the bunker's websiteor on its Wikipedia entry.
The bunker station is operated by members of the former Barking Radio & Electronics Society, G3XBF.
Virtual Bunker Tour
Recently, the bunker owner, Mike Parish, had a virtual tour of the bunker made which is available on YouTube.
Radio operations are from the Bunker's Radio Room at the end of the main blast tunnel, around 60 metres below ground level. There are long runs of heliax to the antennas on the 45 metre tower. The main HF antenna is a 160 metre doublet as an inverted-V from the tower. There are several colinears for VHF and UHF, and some long wire antennas.
Members of the radio club have made HF Yagi's and Quads that have also been used very successfully from the bunker site during summer events (see below).
We are unable to blanket send out QSL cards as this is expensive and most people do not want cards. If you do want a paper card, you can send a card via the bureau using the callsign 'GB0SNB'. Direct cards can be sent to M1GEOand will be returned direct. eQSL.cc (AG) cards are also returned, but are not automatically sent. We do not use LoTW.
Work The World Weekend - 29/30 September 2012
This event was short notice, coordinated by Kevin, M0TBX, from the Havering and District Amateur Radio Club, G4HRC, Following the design and construction of a new HF beam by Chris, G8OCV, we decided set up a nice HF station and try and work some DX. Our ambition was simple, to work the world.
I think we acheived our aim of working the world, as the map below shows. This map was taken after about 5 hours of operating. In total, we managed many other QSOs. Only the first QSO into each new region is included in the map, to prevent it from becoming too cluttered.
Below, M0TAZworks the HF station.
And finally a couple of pictures of the homebrew HF beam as made by Chris, G8OCV.
Many more (excellent) pictures from the weekend can be found on HDARC's Website Gallery.
Museums Weekend - 24/25 June 2012
We struggled during the 2012 Museums on the Air weekend, due to some very strong (S9) local QRM. Afterwards, A few of us (M1GEO, G8OCV and G7UVW) decided to try some antennas out at the site. We arrived back after tea at round 8pm, having sorted out some equipment, and set up operating a portable setup. We worked around 50 QSOs during the few hours we stayed there, operating from 9pm till 12:30am 24/25th June 2012. During one QSO, we mentioned the operating setup, Icom IC7000, 40m dipole, using a palet as a table on wet grass and gravel, and it was suggested that we make a 'limited edition' QSL card to commemorate the event. So, in light of the level of organisation, here is a QSL card made in 10 minutes.
Photo taken by Dave, G7UVW of George, M1GEO operating 40 metres. The light in this image comes from the camera flash. Logging was done using the IC7000's LCD backlight, the auto-tuner's power light, and the keypad light on the microphone!
I think all in all, we can all say we had fun for something we setup in 10 minutes! Best 73, George, M1GEO.
Pictures from some of the older events can be found on the Barking Radio & Electronics Society's website.
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