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Spring cleaning in my shack. While stocks last, I'm giving away sets of 2 old stock PCB's for my QRP-Labs broadcast band filter for postage cost only. Checkout: https://www.ph2lb.nl/blog/index.php?page=bc-filter and if you like it, fill in the webshop order form http://ph2lb.nl/webshop/order.php to get yours.
I have added new K2 mods and articles to this website . . . . (continue reading)
I'm now on HamShack Hotline 420-000-0225 (or the short number 84225)
Continue reading . . .
When you want to measure output power and don't have a power or dBm meter, but do have a oscilloscope and a 50 ohm load, you good to go.
Check out this page on which I describe how to do it.
I updated the 40dB RF Sampler page because although I was very happy with the result, I found out that I forgot a small thing.
To be exact, a small piece of wire which flattens the curve on higher frequencies.
In the winter of 2022 I bought the original TinySA at Eleshop and when they published that the would sell the TinySA Ultra, I ordered it right away.
The last weeks I have worked on a few small mini projects :
- QRP-Labs broadcast band filter a QRP-Labs filter compatible HighPass filter configured for Broadcast band suppression.
- Component Measuring Adapter for QRP-Labs filter adapter a small add-on to measure components with your QRP-Labs filter adapter.
The used Elecraft K2 I got my hands on needed some work on the 20m band and for the alignment of the 20m BPF I could follow the Elecraft manual. But owning a NanoVNA . . . . . well you know where this is going ;-)
I got my hands on a used Elecraft K2 which needed some work.
And as always I started working on it and added a usb mod.
My OZ2CPU digitale RF mW-dBm-mV meter has a input range from 1nW to 1W which is good enough for QRPp rigs and my TinySA has a imput limit of +10dBm / 10mW. When you want to measure on equipment which gives more output power, you need a serious set of attenuators, or you could build yourself a 40dB RF sampler.
Help spread the word and show your support with these free (vinyl) stickers.
On 30 june 2022 I got a mailing from RaspberryPI store that the Raspberry PI foundation has released a new PI Pico which also includes a wireless module for Wifi and Bluetooth.
So I ordered 4 of them to get myself familiar with this new microcontroller and to do some experiments with it. And 1 day later postman dropped of a package.
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