In addition, Eric has built a very handy tone generator for his old 2m box pending the changes to VK3REC. We will (I hope) put the schematic into the sites member section so you need to log in to get it.
Matt – VK3FDLL, found this link: TinySA, a small spectrum analyzer, at US$49 (US$66.77 delivered to metro Melbourne). It’s of similar build to the NanoVNA, and for the price, would make a welcome addition to any amateur’s kit.
Now, many of you may well know Peter and his exploits in amateur radio, and especially QRP. In fact I bet that many of you have worked Peter as he tests he latest creation or enjoying the beach and the advantage of salt water with QRP . in case you haven’t, here are a couple of links to hours of interest either through YouTube or via Peter’s site:
Paul, VK3HN, has a very nice site and some very interesting videos of his work on homebrew, QRP, maker etc. A nice little dipole article for an ‘isolation’ project in these times too. Check Paul’s site at:
Want to close the eyes and just listen? Amateur Radio Podcasts may help.
(For those who are not familiar with podcasts, they are in essence (usually) a pre-recorded audio stream that you can listen to on your computer, ipad, tablet or phone. The best way I think to listen is when downloaded to my iPhone when at home – but you can stream them also on the phone etc if you have mobile data enabled. But when to listen? Walking the dog, riding the train, driving are my favourites. Earbuds when walking allows some ambient noise to come through and bluetooth when driving – so much better than the majority of radio choices, especially when travelling long distances.
Many of the podcasts listed have useful websites and social media links and some even video stream – not a good idea when driving hi. This first site for example allows download or play via different options based on your preferred technology.)
This Ham Radio podcast deep dives on making, DIY, electronics, and technical topics of interest to the amateur radio operator. Your hosts George KJ6VU and Jeremy KF7IJZ discuss current developments in ham radio while introducing listeners to a plethora of topics and skills such as test equipment, 3D Printing, Arduino, Raspberry Pi, and more.
A couple of recent dives I enjoyed in particular are:
A range of interesting topics often Linux centred but certainly not always
LHS Episode #301: Pi-Star Deep Dive Part 1
Mark. VK3MD, forwarded on this link:
I use this site a bit for work. It has a good Advanced search tool.
Jim, VK3ZKK, thought these would be of interest to readers. Thanks Jim, very handy indeed!
If you want to repair equipment with SMD components or salvage useful active SMD parts from printed circuit boards you will want to identify them.
SMD devices are too small to print conventional semiconductor type numbers onto so device packages are marked with a two or three character ID.
It is possible to identify the manufacturers’ type number by searching through numerous databooks.
This URL lists over 3,400 device codes in alphabetical order together with type numbers, device characteristics, equivalents and pinout. https://www.sphere.bc.ca/download/smd-codebook.pdf
http://websdr.ewi.utwente.nl:8901/m.html is fascinating to hear what hams can hear in Europe. The whole of the HF frequency spectrum is covered and AM, SSB and CW modes can be selected. It was interesting to see/hear the activity during a recent contest. Then the “Long wave” broadcast band can be received on AM – try 198 kHz.