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#1
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At my location on the east coast of the US, I get semi-reliable
reception of WWV on 5 MHz through most of the night. (See my WWV usability charts at http://www.trailing-edge.com/~shoppa/wwv/ for propogation/reception conditions.). But the 5 MHz signal often "sounds" different than the 10, 15, and 20 MHz broadcasts. There's an additional beep that seems to come once a second, and this is sometimes audible when WWV isn't heard at all. Is it possible I'm picking up YVTO (also a time station at 5 MHz) from Venezuela? I'm not sure I've ever heard a Spanish-language voice announcment, but presumably the modulation on the voice is less than the once-a-second beep. The beep seems slightly out of phase compared to WWV. Are there any other 5MHz once-a-second-beep stations that might be audible from the East Coast of the US? Isn't there a Chinese time broadcast on 5 MHz? But I doubt that I'd be hearing it here on the East Coast. What's the format of the Chinese broadcast? Tim. |
#2
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It is possible that you're receiving YVTO. Try listening in SSB to see if you
can pick up an ID, which usually lasts quite a bit longer than WWV's. 73s Ken Maltz Jericho, NY NRD-535D, NRD-220 Collins R-388, Racal RA6790/GM, ICOM R71A, ICOM R-7100(x3), AOR AR-8000 Panasonic RF-2200, Sony ICF-7600GR, Hoka Code3 Gold-Pro, 60' long wire, MLB balun |
#4
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In article ,
Tim Shoppa wrote: Is it possible I'm picking up YVTO (also a time station at 5 MHz) from Venezuela? I'm not sure I've ever heard a Spanish-language voice announcment, but presumably the modulation on the voice is less than the once-a-second beep. The beep seems slightly out of phase compared to WWV. Are there any other 5MHz once-a-second-beep stations that might be audible from the East Coast of the US? This list is advertised as possibly out of date, but still may be helpful to you: http://www.ac6v.com/standard.htm It shows a number of stations on 5MHz that might be audible on the East Coast. My best catch was once on 10MHz when I heard four stations at once: WWV, WWVH, BPM, and JJY. Patty |
#5
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Tim Shoppa wrote:
But the 5 MHz signal often "sounds" different than the 10, 15, and 20 MHz broadcasts. There's an additional beep that seems to come once a second, and this is sometimes audible when WWV isn't heard at all. Is it possible I'm picking up YVTO (also a time station at 5 MHz) from Venezuela? I'm not sure I've ever heard a Spanish-language voice announcment, but presumably the modulation on the voice is less than the once-a-second beep. The beep seems slightly out of phase compared to WWV. It's almost certainly YVTO. It's been there for years. I tuned in a couple weeks ago and I was very surprised to hear YVTO off-kilter with WWV. Maybe YVTO keeping UT1, which is about a half-second off of UTC right now? |
#6
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#7
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Tony Calguire wrote in message ...
Tim Shoppa wrote: But the 5 MHz signal often "sounds" different than the 10, 15, and 20 MHz broadcasts. There's an additional beep that seems to come once a second, and this is sometimes audible when WWV isn't heard at all. Is it possible I'm picking up YVTO (also a time station at 5 MHz) from Venezuela? I'm not sure I've ever heard a Spanish-language voice announcment, but presumably the modulation on the voice is less than the once-a-second beep. The beep seems slightly out of phase compared to WWV. It's almost certainly YVTO. It's been there for years. I tuned in a couple weeks ago and I was very surprised to hear YVTO off-kilter with WWV. Maybe YVTO keeping UT1, which is about a half-second off of UTC right now? Could be, I agree that it sounds off-kilter. There's also supposedly a Chinese station (BPM) that for half the hour beeps with UT1 and the other half beeps with UTC: http://en.wikipedia.org/wiki/BPM_(time_service) Although it seems far more likely that I'm getting Venezuela on 5 MHz at night than getting China. Tim. |
#8
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Tim Shoppa wrote:
Although it seems far more likely that I'm getting Venezuela on 5 MHz at night than getting China. It's been a while since I heard the voice announcement, but you should hear it sometime between the 45th and 59th second, male voice, "Observatorio Naval Cagigal, Caracas, Venezuela. A la oida las horas seran (x) horas, (y) minutos, cero segundos". |
#9
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I am In Wilmington, NC and will tell you that it is YVTO Caracas. I
hear it about 3 s-units below WWV. BTW, the reason the tones are out of sync with each other is the propagation path (the time it takes for the signal to reach your reciever. I have never heard the chineese service from the east coast. Only VNG at 16000khz from Australia which is now silent key. On 1 Sep 2004 06:23:46 -0700, (Tim Shoppa) wrote: At my location on the east coast of the US, I get semi-reliable reception of WWV on 5 MHz through most of the night. (See my WWV usability charts at http://www.trailing-edge.com/~shoppa/wwv/ for propogation/reception conditions.). But the 5 MHz signal often "sounds" different than the 10, 15, and 20 MHz broadcasts. There's an additional beep that seems to come once a second, and this is sometimes audible when WWV isn't heard at all. Is it possible I'm picking up YVTO (also a time station at 5 MHz) from Venezuela? I'm not sure I've ever heard a Spanish-language voice announcment, but presumably the modulation on the voice is less than the once-a-second beep. The beep seems slightly out of phase compared to WWV. Are there any other 5MHz once-a-second-beep stations that might be audible from the East Coast of the US? Isn't there a Chinese time broadcast on 5 MHz? But I doubt that I'd be hearing it here on the East Coast. What's the format of the Chinese broadcast? Tim. |
#10
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Oh Yea, forgot about CHU. And if memory serves, there was a medium
wave time station at 740khz but I had to be in south Florida to hear that. On 1 Sep 2004 06:23:46 -0700, (Tim Shoppa) wrote: At my location on the east coast of the US, I get semi-reliable reception of WWV on 5 MHz through most of the night. (See my WWV usability charts at http://www.trailing-edge.com/~shoppa/wwv/ for propogation/reception conditions.). But the 5 MHz signal often "sounds" different than the 10, 15, and 20 MHz broadcasts. There's an additional beep that seems to come once a second, and this is sometimes audible when WWV isn't heard at all. Is it possible I'm picking up YVTO (also a time station at 5 MHz) from Venezuela? I'm not sure I've ever heard a Spanish-language voice announcment, but presumably the modulation on the voice is less than the once-a-second beep. The beep seems slightly out of phase compared to WWV. Are there any other 5MHz once-a-second-beep stations that might be audible from the East Coast of the US? Isn't there a Chinese time broadcast on 5 MHz? But I doubt that I'd be hearing it here on the East Coast. What's the format of the Chinese broadcast? Tim. |