On Sun, 22 Aug 2004 10:57:33 GMT, "Marc" wrote:

I've buy on ebay a AN/PRM-10. A very good griddipper for a small amount,
better than homebrew.

GDMs are useless for anything above HF. There are plenty of circuits
around that will cover up to UHF, but they're hopelessly clumsy to use
in practice at such frequencies.
--

"What is now proved was once only imagin'd." - William Blake, 1793.