Members of the Secret Nuclear Bunker Contest Group (SNBCG) assembled at Kelvendon Hatch to try 144 MHz (Earth Moon Earth) EME and MS (Meteor Scatter) over the weekend of the ARRL EME event As a group we have tried with some success MS QSO and this helped lay the foundation for this weekend’s EME event. […]
The Kiwi SDR now includes the ability to decode ALE 2G, so it’s probably a good time to look at where ALE is used, and how this can add to your SWL. In the UK we have deployed a MOD system for communicating with assets called Defence High Frequency Communication System (DHFCS), which operates on […]
The Kiwi SDR network or receivers allows you to direction find HF transmitters, by using the inbuilt Time Difference of Arrival (TDoA) functionality. TDoA is a method of measuring RF propagation from two or more receivers in an effort to establish the location of the transmitter. You can watch a demonstration of how TDoA works […]
Like many, we have been locked down due to Covid, with few radio events. The August Bank Holiday was a chance to get out and play some radio. The event was organised with LEFARS as a joint weekend of radio fun. This gave us a great opportunity to try as many bands as possible, with […]
I haven’t been that active on HF recently and often look on FT8 for some quick-fire activity. 7 MHz is my band of choice from home, but the FT8 allocation is often rammed! Quite why everyone squeezes into that 3KHz of the band and doesn’t migrate up or down a few kHz bemuses me. I […]
I added this article as I think it may be helpful to people looking to install this product. The model I have fitted is the Google Nest Hello, wired doorbell. I previously has a battery operated doorbell, powered by 4 x D cells, the batteries dated from at least 20 years ago, more likely 30 […]
Team GB0SNB and LEFARS joined up at the Secret Nuclear Bunker for some radio fun. The RSGB 50 MHz Trophy cup promotes activity on what can be a busy SPe weekend for 6M. The weekend is also combined with the International Museums Weekend, when stations activate from a museum site, allowing radio to promote other […]