Re: [IRCA] Sorry, some of my carriers were local noise
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Re: [IRCA] Sorry, some of my carriers were local noise



If it's any consolation, George, I had a similar experience with the receiver itself doing the dirty work. Some years ago I was working in San Diego and staying very close to the ocean. A friend in the city loaned me a Cubic receiver, very high end, figuring I might hear DU's from my location using my little active antenna. First morning, I heard tons of 9 kHz carriers, and went off to work figuring that audio would only be a matter of time. Practically no carriers were heard on my own receiver, a Dymek DR333, but hey, the Cubic was high end, and was obviously proving itself. Each morning, lots of carriers on the Cubic, no audio, until one day I came back to the hotel midday for something, and figured that I'd spin the dials to see how this sensitive receiver heard daytime DX. Um, carriers every 9 kHz; none on the DR333 though. Ouch.

best wishes,

Nick




At 08:28 02-06-12, you wrote:
My apology for that. I still can't tell which ones, so from now on I won't report something unless I hear audio or think I hear audio. I will not use my DSP-599zx anymore until I get a better AC adapter. I have powerline buzz, probably a little cable noise, maybe I could even get faint noise generated inside the R75 or it's big brick adapter. It's amazing how many carriers not from stations I was getting within 50 Hz of TA/TP/DU freqs, different directions, strengths. I will try to note the tone frequencies more precisely during day when they're all fake stations.


I was using a Eton E1 w/8" Quantum loop, both on batteries which sometimes brought noise levels down and I think at least reduced the number of carriers from other stuff. But they're sort of falling apart now. I don't have anything with a 1 HZ readout & get a little confused how to set the dual passband tuners when using USB or LSB to get the best frequency estimate. I really just concentrated on LW this last season, no super splash or IBOC. 73, George S., MN
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