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Series Five Episode Twenty-Four of the ICQ Amateur / Ham Radio Podcast has been released. The latest news, listener mailbag Ed Durrant (VK2JI/VK2ARE) interviews Tommy VK2IR, DX'Pedition leader and organiser for the Campbell Island DX'Pedition plus Martin Rothwell (M0SGL) reviews the Kempton Park Rally

• Antenna masts and NSW planning law reform
• Amateur Radio club wants weather transmitter in Minden
• World DX Club to close down
• VooDoo in Liberia
• Successful DXpedition to Herm Island
• China name change and focus
• Mysterious Chinese signals on radio bands
• International Day of Persons with Disabilities
• Short path propagation charts from the UK
• Radio switchover delayed as listeners shun digital

10m WSPR spots @ G4ILO 17 November 2012

Another day of good propagation. I don’t know why OH1CO was using the suffix /QRP (aren’t most WSPRers using 5w or less?) but it really upset the WSPR encoding algorithm. His call was being decoded at my end as OH1/P00XEK!

I’m starting to believe that my attic dipole does have magical powers on 10 metres. Right now I’m hearing or being heard by 8 different stations but they are only hearing or being heard by me!

A stop-over on my way from Sydney to Oslo gave me the opportunity today to visit Apliu street in Hong Kong. This is where all the electronics products are found. As I had purchased a Baofeng UV-5R from them before it was fun to stop by the 409shop as well. Their address is on their web site, and the word “showroom” really made me expect something larger than what I found. It turns out to be just one small store among hundreds of others in this street.

I bought a handheld frequency counter, Yaege FC-1, and a better antenna, Nagoya NA-666,  for the UV-5R and got a good deal – I like to think that it is because I presented myself as a previous internet customer.

On the other side of the street there was another store with communications equipment as well, Yee Fu Technology Shop, where I bought a 13.8V/20 A switch mode power supply, HK Products Electronics SPS-200MA.

It even had a noise-offset control which I have come to appreciate in my other power supply, the Alinco DM-330MV. It is particularly nice to have on 160 m. How they avoid Alinco’s pending patent on this feature is something I don’t know. There seems to be several other supplies on the market with this feature also, such as the Watson Power-Mite-NF (NF for Noise offset Function), so maybe Alinco’s patent application hasn’t been granted?

It was nice to hear from Mark M0DEV following our exchange of WSPR signals on 144MHz. It turned out that I was the most distant WSPR signal that he’d heard on 144MHz at that point. We decided it would be fun to try a QSO and decided that since we both used JT65-HF regularly, we’d use that rather than the more usual variant for VHF/UHF JT65B.

Running 10W at each end, both into collinears, it was an easy QSO over a path of around 140km. Not massive DX of course, but very satisfying. Following a successful exchange of signals we then turned down our power as low as it would go – around 1W in my case and were still easy able to exchange signals. Mark calculated that given the conditions at the time, around 150mW would have probably done the trick. Sadly I can’t run that little power – at least not readily!