[time-nuts] WWVB BPSK Receiver Project? (fwd)

[Marek Peca]

> My choice would be a center tapped, shielded, air core loop, running into
> a low noise instrumentation amp. Center tap of loop to twinax shield,
> grounded at preamp.
>
> The instrumentation amp has fixed gain, and very high CMRR and PSRR. It
> also does the differential to single ended conversion properly and has a
> low output impedance.

I have used an instrumentation amp in my breadboard, however, without 
center tapping and shielding. But it seemed to me to be a very good 
component for such low frequencies.


Marek