[time-nuts] LORAN C is good again tonight 90070

[J. Forster]

On the noise source, make a roughly 1 foor diameter shielded loop and use
it to DF the source, either with a portable receiver or preamp, BPF, and
'scope.

A shielded current probe, made of a long, skinny rectangle is useful for
looking for EMI currents on conductors.

When yuou find the source, ferrite is your friend.

Best,

-John

=================


> Thats odd it says loop head Ireland not exactly the middle of the ocean.
> At
> least thats the closest station I can find.
> But that said I can get a frequency measurement but also at my very limit
> from what I can tell.
> I do want to look at the autron 2000 and SRS FS700. The 2000 lets you see
> things more easily and the SRS may have a better front end. Hard to say.
> I really have a local noise source thats causing trouble and not sure how
> I
> will find it.
> Regards
>
> On Wed, Dec 22, 2010 at 3:34 AM, Poul-Henning Kamp
> <phk at phk.freebsd.dk>wrote:
>
>> In message
>> <AANLkTinQeVCwqcb2_GrLDttwazye-TP1eJJcnR7i3QQt at mail.gmail.com>,
>> paul
>>  swed writes:
>>
>> >Thus making Europe a viable LORAN C frequency reference. Kind of
>> amazing
>> >actually considering it must be 3000 miles and only skywave.
>>
>> 9007M is probably not 3000 miles away from you, it's out in the
>> middle of the atlantic:
>>
>> http://maps.google.com/maps?q=eidi,%20foroe%20islands
>>
>> --
>> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
>> phk at FreeBSD.ORG         | TCP/IP since RFC 956
>> FreeBSD committer       | BSD since 4.3-tahoe
>> Never attribute to malice what can adequately be explained by
>> incompetence.
>>
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