Tag: bunker

RSGB IOTA contest

Members of the SNB contest group came together to play some radio in the RSGB IOTA contest. Some stations make the trek to far flung Islands in exotic parts of the world, we opted for the contest site close to Kelvedon Hatch in Essex.

The SNB contest site has the added bonus of a 50m onsite mast, making an ideal platform to hang dipoles. George M1GEO and myself decided to operate our respective calls from the two radio setup, using 3.5, 14, 21 and 28 MHz. George also added his 50/70 MHz beam on the mast, and this provided some interesting contacts using MS and JT65.

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Two pump up masts provided the following setup.

Scam 12m – Tri-band Beam A-3S covering 14, 21 and

28 MHz and 50/70 MHz beam.

Clark 10m – 15m 4e homebrew beam

Bunker mast – 3.5 MHz dipole at 30m

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At various times we added some RF power from either the solid state expert 1.3KFA or the hal1200_atlantic amplifier. We had some interaction between the close sited antennas, and at times this dictated the operating modes / times.

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Fred G3SVK joined us as our CW operator, Fred can often be found in the lower pasts of the bands chasing big DX.

 

 

 

 

 

 

 

 

 

It was a casual operation, allowing time for sleep, meals and frequent cups of tea. The weather was fantastic, so camping out onsite was very enjoyable.

 

 

M0TAZ added around 49 DXCC and 350 QSO over the weekend. The highlight for me was AL7KC Alaska on 14 MHz  and VP8LP Falklands on 21 MHz.

Operating GB0SNB special event call from the Kelvedon Hatch SNB

On Saturday I operated from the Kelvedon Hatch Secret Nuclear Bunker near Ongar. The bunker is a large 3 level underground site, with a 50 meter mast on the roof. The bunker was active until 1994.

The bunker has a permanent special call sign GB0SNB and is open to the public as a museum.

Working with George M1GEO we completed some QSO on 5 MHz, 14 MHz and some VHF contact on 145 MHz.

You can read more about the bunker online, and if you’re local why not plan a visit. The current owner Mike Parish gives you a virtual video tour below.

The Icom 7100 provided HF and VHF. To the left is the TYT MD380 and right Icom E92

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Operating is completed from the original home office radio room, although this equipment is on the back wall its only for show.

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Here you can see George M1GEO tinkering with the IP and the co-located GB7KH DSTAR repeater.

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GB0SNB – Kelvedon Hatch Secret Nuclear Bunker.

Spent some time this weekend operating from the Secret Nuclear Bunker at Kelvedon with George M1GEO. The bunker has a permanent special call GB0SNB and we put this on the air both VHF and HF today. It was nice to see 7 MHz in good shape, full with the JOTA and WAG contest.

Here are a few pictures from the day.

More information on the bunker is available at the GB0SNB website.

Here is George M1GEO maintaining the GB7KH repeater.

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Ever wondered what the inside of a DSTAR repeater looks like  (TXM)

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Inside a DSTAR repeater.

And the Icom 7100 with retro microphone

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73 Dave M0TAZ

© 2015 Dave, M0TAZ