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 <[email protected]> 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:[email protected]] On Behalf Of Doug > Ronald > Sent: Thursday, November 13, 2014 3:23 PM > To: [email protected] > 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 > > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
