[time-nuts] Lassen IQ receiver

Morris Odell vilgotch at bigpond.net.au
Sat Oct 11 11:51:29 UTC 2008

Thanks again Bob,

Yes, that's what I thought it would do, but It doesn't seem to be so. My 
micro is programmed to identify the beginning of an NMEA string by the $ 
character and there's only one per sec. Maybe the second string is 
concatenated onto the first one without the dollar symbol.

Having said all that, in the time between my original post and this one I 
managed to get the TAIP output working and the micro to recognise it so I'm 
a happy man :-)


> Date: Sat, 11 Oct 2008 00:29:07 -0600
> From: "Robert Darlington" <rdarlington at gmail.com>
> Subject: Re: [time-nuts] Lassen IQ receiver
> As far as alternating, you'll get the various NMEA strings in the order 
> you
> choose (and the strings you choose) once a second.  You won't get one, 
> then
> the other, then back to the first.  It'll be several  all at once, and 
> that
> block will repeat once a second.  I suppose you could select just the two
> you want, but they'd come in on the same data burst, repeating once a
> second.
> first string
> second string
> <1 second pause>
> first string
> second string
> <1 second pause>
> etc.
> I don't know for sure if you can have port 1 setup with a particular set 
> of
> NMEA data strings and port 2 setup with a different set.  Assuming you 
> can't
> do that (meaning they have to be the same NMEA data), you can probably 
> have
> both ports spit out everything you'd need and ignore what you don't need 
> in
> software.
> -Bob

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