Re: [IRCA] Plotting a course to 1710 kHz Location

[Guy Atkins <dx@xxxxxxxxxxxxx>]

Hi Gary,

I'm finding the 1710 mystery Russian around the clock at my receiving
location in Puyallup, not just night time. Also, it's the strongest by
far of any signal surrounding 1710, as noted on the Perseus waterfall. (But
strong is relative--all the carriers are fairly weak.)

I noted the Russian varying slightly, 1709.987 - 1709.989 after I calibrated
the receiver display around 10 a.m. PDT. At that time there were 13 carriers
found between 1709.9 and 1710.1!  Now at 4 p.m. I only see two carriers in
that range.

I'm not sure if I'm seeing a KIRO/KOMO mixing product or not. There's an
*extremely* faint trace at 1709.999 kHz.

The Russian on 1709.989 shows a signal strength between -105 and -110dBm
right now, stronger than it was this morning (-118dBm).

So far I'm only checking the frequency with the NW Conti loop antenna;
before the day is over I will hook up the rotating ALA100 again and report
back on the bearing.


73,

Guy Atkins
Puyallup, WA
www.perseus-sdr.blogspot.com



------------------------------------------------------------------------------

> Date: Tue, 26 May 2009 12:00:42 EDT
> From: D1028Gary@xxxxxxx
> To: irca@xxxxxxxxxxxxxxxx
> Subject: Re: [IRCA] Plotting a course to 1710 kHz Location
>
> Patrick and Dennis,
>
> Here in the south Puget Sound area we have a weak mixing product of
> KIRO-710 and KOMO-1000, which is right on 1710 kHz. This complicates DF
> efforts
> on the 1710 Russian, which is weaker than the mixing product and only shows
> up  at night, with no apparent ground wave propagation.
>
> Puyallup is about 7 miles southeast of Tacoma, and there are many large
> experimental loops here. The best bearing I have been able to come up with
> for the 1710 Russian is one made at midnight in the null of the KIRO/KOMO
> mixing  product, or at 015 or 195 degrees true bearing from Puyallup. The
> mixing
>  product interferes with accurate DF work, though.
>
> 73, Gary
>
>
>
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