thanks Phil. I have about 15 RPi lurking, from the first B production run to the zero, zeroW, A, A+ and now a 4gb RPi4. I'll have a look at your github tomorrow. I have RPi3B+ running with

If you have a Raspberry Pi around, I just threw my code on GitHub: https://github.com/bitglue/libpisi5351 If you want a stand-alone solution, the VFO/Signal Generator kit is an option:

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I treated myself this past holiday season to a Tenma 3.75 digit handheld meter: https://www.newark.com/tenma/72-7780/6000-count-true-rms-digital-multimeter/dp/26Y8885 This was reviewed by the the guys

I have never, ever used the programming DIP switch. Used the serial input every time. Much quicker and you get a readout on the screen so you can see what you have done. I used an eight pin

Thankyou everyone who replied. It turned out to be a faulty USB Dongle. I think it was occasionally outputting a spike, no idea how, that was killing the serial input pin on the progrock. Replacing

OK, I've been playing with a Progrock today and I've worn out my fingers typing in repetitive frequencies over and over again to adjust for drift and signal requirements. Please, come the next

I'm a new ham with a life-long fascination with this hobby. I have only recently pursued the HF side. Here are my observations. Many thanks to Hans for the radio and this forum. It was great fun

Hi all I have had several enquiries about whether QRP Labs is operating and shipping normally during the global crisis we are all in. Yes, QRP Labs is operating normally. We are currently able to

Ok, I think I've managed to solve my problem (partially at least). For some reason the click was in my case caused directly by the mute mechanism (Q7). I've disconnected the mute completely by cutting

If you are going to the trouble to make an adapter board you can also make your own filter. Here is my air wound 160 filters. Rather than make an adapter board I just put antenna terminals on it.

Thanks Phill!

Looking good, Gregg! 73, Mike WM4B

A little mount like that does make it handy. Here is my own perf-board jig and the results of all my U3S filters: http://ae5x.blogspot.com/2019/10/some-surprising-results-with-lp-filters.html -- John

Here are the results of two QRP Labs projects over the past year, both of which make use of the QRP Labs Arduino shield. The first uses the shield together with the QRP Labs Si5351a module (borrowed

I used the exact display in the previously mentioned Amazon Link. It looks good to me. Here is the display in action. Sorry the picture is a tad darker than in real life.

I have one to supplement my HP4191A and DSA815T. After years of using HP and Agilent PNAs its light weight is a pleasure. Very handy device and requires some learning about test techniques and

Here is an Amazon link. https://www.amazon.com/gp/product/B00GZ6GK7A/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

I reboxed my original Nana VNA, best $35 on radio equipment I ever spent. https://sites.google.com/site/andyg0ftd/nano-vna

Hi Mike ebay. It was £4. Bit pot-luck that it’d work TBH but given the low cost I was happy to take a punt. Here’s the ad: 73s Phill