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I am so sorry to hear this. I made a lot of use of Owen's online calculators and he reviewed a couple of projects I'd been working on (favourably). Sometimes Owen would pick up on posts I'd made to

As the reference plan is now at the test board level, a set of OSL terminations are required for calibration (DIY, see below). Jumpers are also useful. I have extensively used this board for crystals

Here is another YouTube story... A friend asked me to help him diagnose an antenna problem he was having, high SWR at any power over around 200 watts, on some relatively new antenna he had installed

I suspect that it will instead catch grime and wear particles, especially in the crevices of the female sockets, making a nice grinding compound to cause unnecessary wear on your connectors. Here is

I was advised by email that The Test Board from nanovna.com has some extra connections that are not on the SDR Kits board. Rows C, D & E are the same but A/B and F/G have some additional connected

I was not aware that Owen discontinued his website. I enjoyed his insights. A great loss. I hope he is OK. You can find owenduffy.net, and its predecessor vk1od.net, on the Internet Archive,

I don't have them all but it that information protected an any way? I did not see any notice. Mike n2MS

Swr dofferent [email protected]> wrote:

Is there any chance of someone else hosting the info on their site? We lost a treasure load of info when The Radioboard was lost after the long time owner turned it over to someone and then they got

Mike- You and your stash may become a most useful resource if you can spare the time and energy. Thank you in advance! Ed McCann AG6CX

Owen will be sorely missed. I had a habit of saving his excellent blog posts by performing a "print to pdf" and saving them to an Owen Duffy folder. I am always referencing them. Mike N2MS

Also sorry to hear the news, I was very much a fan of his articles and his no stones unturned thoroughness in his research. I will miss his reference library and will have to go download it for

The board you have is derived from a test board designed by DG8SAQ. The main section can be used as a test platform to be used with your NanoVNA (or tinySA if you have one). You can install the

Daniel, I also bought the Demo Board Kit. Excellent board to relearn all the functions of the VNA. I wish the same people would make one specifically for antennas, Even at scale relearning how to use

There is a circuit schematic associated with this printed circuit board. Some of the pads in the center section are connected together and some are not. Some are connected to the center ground plane

Folks: Roger is spot on with respect to misinformation offered on the Web, supported by Dave W0LEV's frequent plea to be wary of unsupported wisdom offered on YouTube. Two real-life examples come to

I must agree...? I will miss his blog greatly...? So sad to see it go... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director,

You can add my name to the long list of readers that will miss Owen Duffy's blog. There is a lot of misinformation on the Web when it comes to RF topics and many of his posts were a well written

Hi WW6X as far as i know , there is some thin fim SMD 1% resistors that has less than 50ppm/°C temperature coeff , so within 10°C interval Room temperature +/- 5°C the variation will be less

owenduffy.net – Mostly electronics… ( https://web.archive.org/web/20240917015738/https://owenduffy.net/blog/ ) web.archive.org (