John

yes it is. Modulation is via putting an opaque screen between the hot plate and the Rx; hence my reference before to QRSS

73 Barry, G8AGN

No info on what his TX is?
Surely it's not just a hot copper plate is it?
If so I don't understand!

Anyone elucidate?

73
John
 

-- 
73
Barry, G8AGN