[time-nuts] Near-perfect chip for Loran-C frequency receiver

Poul-Henning Kamp phk at phk.freebsd.dk
Fri Jul 4 03:16:35 EDT 2008


In message <20080704.010233.197896015547869060.cfmd at bredband.net>, Magnus Danie
lson writes:
>From: "Poul-Henning Kamp" <phk at phk.freebsd.dk>
>Subject: Re: [time-nuts] Near-perfect chip for Loran-C frequency receiver 
>Date: Thu, 03 Jul 2008 21:38:41 +0000
>Message-ID: <17856.1215121121 at critter.freebsd.dk>
>
>> In message <20080703.230345.407454645627532368.cfmd at bredband.net>, Magnus Danie
>> lson writes:
>> 
>> >It would be nice to have LORAN-C, MSF and DCF-77 in the same solution if
>> >possible. I am sure some of the US signals can be included.
>> 
>> It's trivial to do phase-tracking on any moderately strong CW signal
>> at the same time, so that could easily be done using the same chip.
>
>Which was my point. Just a thad more work, but more usefull.
>
>> The analog side would need to allow for those signals also then.
>
>Naturally. The antenna-amplifier design will need to be more wideband
>oriented. Should not be too hard thought.

My present antenna just have a simple low-pass filter that cuts
things off above 200-300 kHz.  Together with the 1MSPS that's fine.

Poul-Henning

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
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