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Yes Paul, that sounds like a very reasonable
proposal. Joe's OCXO is obviously stable enough for the task, all that's
needed there is a different frequency word for the DDS. And considering the
antenna size, doubling (or even tripling) the current may be not
unrealistic, which could cut down integraton time to an hour or
less.
Joe, if you go about it today, you
might end up achieving VLF transatlantic tonight, followed by LF
transpacific tomorrow ;-)
All the best,
Markus (DF6NM)
Sent: Sunday, December 20, 2015 10:39 PM
Subject: Re: LF: VLF in VO
> About 30 watts were fed to a 5:1 XFMR and a
~0.35H
> tuning coil to the 100m wire at 10m
height.
> The ERP was about 3uW.
How about a long
carrier, GPS or rubidium? It's a long
shot but it's a low loss path and
the time of year is
good for several hours of coherent integration.
I
can easily see 10uW from 1000km in one hour over
a path with a lot of
land. West to east over water
will be lower loss and four or six hours
integration
will make up for the lower ERP.
--
Paul
Nicholson
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