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Doug, VK3YMG , pointed this out to me. Squashing the mag Loop feed coils seems to improve things quite a bit.

I have not purchased one of theses but they do look interesting! Mount on a Raspberry Pi 4 and you have a 100mW HF transceiver that is...

Impressive array....

Impressive array....

The 8727 now has the OLED display installed (on a slant). The code below will compile for OLED or LCD as desired. For a 2x16 LCD, change...

I have put some code into an Arduino VFO and am in the process of growing it into the Codan 8727. A resistive network is connected to...

The code now includes a calibration factor. It is nice to have a good frequency counter! Also, the USB/LSB would work if I replaced the...

The receiver ran very well on tonight's 80M sked. And I actually did a tx test with whatever managed to squeeze through and it worked...

I am still battling with this one, but here is the set with the test VFO running it. No mic TX yet, but otherwise ok.

That sounds like a good idea Bill. I'll give you the bits so you can build one for yourself. I have put another version of the code up...

I could make a cuppa with the left over tea leaves!

Some of the nice features in QucsStudio.

Here is the real device for comparison with the QucsStudio simulation. Don't bother to tell me to clean the bench, you should see the...

Nice to see a filter with sharp edges... :)

I am trying to work out if I can scale one of these down to vibrate around 455 KHZ for use as an IF filter, might need a bit more...