[Boatanchors] ProgRock - triple GPS-disciplined programmable crystal

[Ian Wilson]

Some time ago, I put together a Si5351A (clock oscillator with
excellent performance at considerably less $ than the Si570) and
a $1 PIC, with the intention of making a 'crystal replacement' thingy.

Once I got it working it ended up on the shelf, of course :)

So this is a very welcome addition to the QRP Labs stable:
http://qrp-labs.com/progrock

This has a 3-bit band select, and 2 or 3 independent frequencies per
band (depending on whether you use the GPS-disciplined option). So
this is more like a replacement for 24 crystals :).

Disclaimer: Hans is a friend. I have no financial interest in QRP Labs.

73, ian K3IMW