[time-nuts] strange carrier

[paul swed]

Doug
Great absolutely the fact that small of move made that much of a difference
and that you can not null it does say nearfield. Seems very nearfield.
You can prove that, cut the feed lines. Hmmm maybe not.

I used the analog approach using mc 1496 chips and also the analog devices.
Was not crazy about the results.
Regards
Paul.
WB8TSL

On Fri, Nov 14, 2014 at 5:54 PM, Doug Ronald <doug at dougronald.com> wrote:

> Thanks to all who responded with suggestions and comments. Here is the
> latest...
> At great effort, I moved the loop-stick antenna and preamp, now mounted on
> a pole, from the rear of the house to a midpoint of the house toward the
> front. The old position had the antenna about 10 feet off the ground. The
> new position now allows me to rotate the antenna, and it is 21 feet off the
> ground. Just my luck, that could hardly have been a worse move. Now the
> offending carrier is much, much stronger, and completely swamps poor little
> WWVB. Also, the offending illegal transmitter does not null with rotation
> of the loop-stick antenna as WWVB does. This to me means the generator is
> local to the antenna. My neighbor has a DishTV antenna and down-converter
> across the way from my WWVB antenna which stood a good chance of having a
> SMPS in it. I leaned my antenna and pole over the fence toward the dish,
> and the carrier immediately saturated my preamp. So, the next move is get
> my WWVB antenna and preamp centered on my lot, as far from illegal
> transmitters I can't control as possible.
> The analog multipliers for my Costas loop arrived today, so I'm
> super-anxious to get a decent signal...
> -Doug, W6DSR
>
> -----Original Message-----
> From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Doug
> Ronald
> Sent: Thursday, November 13, 2014 3:23 PM
> To: time-nuts at febo.com
> Subject: [time-nuts] strange carrier
> Importance: Low
>
> I'm working on my WWVB BPSK receiver and am receiving a carrier, 10 dB
> stronger than WWVB in Sunnyvale, California, quite stable, on the air 24/7
> at a frequency of 59.99240 kHz. I have researched on Internet what it might
> be, with no results. I have turned off all switch mode power supplies at my
> location with no effect. The carrier is so stable that it seems like it
> must be something intentionally generated. I have not tried nulling it out
> with my directional antenna yet.
>
>
>
> Anyone have a clue as to what I might be receiving?
>
>
>
> Thanks,
>
> -Doug Ronald
>
> W6DSR
>
>
>
>
>
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