jks

I see what's wrong. I'm building on your Kiwi now to test the fix. For BBAI we rolled back clang++ to g++ due to a terrible compiler bug that is affecting some new development. But the way it was rolled back wasn't quite right. The fix will be part of today's v1.358 release. Thanks for mentioning this!

He re-hosted his blog a while back. I fixed the links on kiwisdr.com but missed the one in the operating guide. It's now fixed. Thanks for pointing this out.

No, it should not be a problem. Only a near-field transmitter (like a ham transmitter running power) might be an issue.

I'll look at WWVB-ampl again. I first started with WWVB-phase and added the others from there. But later I noticed it didn't work as well as I had remembered. So maybe I've inadvertently changed something.

There are many improvements that could be made. I'm sure the PLL operation is not optimal since I don't understand PLLs very well (the one I use is Christoph's from his additions to the IQ display extension). There is no checking of the various parity bits in the timecode(s) or decoding of anything other than the time.

WWVB-phase has additional features that are currently ignored (e.g. the 6-minute extended symbols). And of course DCF77-phase would be extremely interesting to add. JJY should be easy to add. BPC's timecode format is supposedly "closed-source" (any help appreciated). WWV/WWVH 100 Hz sub-carrier needs PLL damping changes due to its lower duty cycle (I think). I have not considered the Russian sources at all.

Delay comparisons with GPS is not currently possible as high-resolution timing (e.g. IF/audio zero-crossings) is not done. Just the gross amplitude/phase information is measured at a single point to get the timecode. This same issue is why the Loran-C extension can't do any navigation calculations. There is not enough time resolution at the audio sampling frequency. You'd have to do it in the FPGA at a higher IF, like in an intermediate stage of the audio CIC filtering perhaps.

So people need to think about the wider implications of a suggestion like this (we've had a similar discussion before).

Assume this has been implemented. When you have a Kiwi that has multiple connections, either because it is public or because it has private access by a group of individuals, what should happen to everyone else connected besides yourself when you change from an HF antenna to a V/UHF one?