Tim said: [time-nuts] WWV/WWVH reception conditions Tim Shoppa shoppa at trailing-edge.com Sat Sep 10 15:26:05 EDT 2005
Previous message: [time-nuts] Soekris Net4801 vs NET4501 as Statum 1 timeserver Next message: [time-nuts] Antenna for 8163 Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] ---------------------------------------------------------------------------- ---- For those who like to keep tabs on WWV and WWVH (note, this is not WWVB!) reception conditions on the East Coast, I have been maintaining http://www.trailing-edge.com/~shoppa/wwv/ for the past couple of years. This charts the usability (roughly measured as the (S+N)/N of the per-minute beep and then converted to a 0-100 scale) of WWV and WWVH (their per-minute beeps are different audio frequencies so I can distinguish between the two). Measurements are made on 2.5, 5, 10, 15, and 20 MHz on a round-robin basis. This is a byproduct of NTP's WWV audio refclock logging files. In the evenings, 2.5 MHz and 5 MHz have been coming in fairly clearly several times in the past week from local midnight to local morning or so. When propogation is open on those frequencies I also pick up the Venezuala time/frequency standard station YVTO. YVTO's time pulses seem to be about a half-second out of phase when I hear it. Is it possible that it's ticking to UT1, and not UTC? Last time I scoped them the difference was about 0.45 seconds. There's also a Chinese station on 5 MHz according to some charts but I don't think I've ever heard it. Tim. Tim and the Group: I was able to hear the Chinese station last winter on 10 MHz, when WWV was in my skip zone, and WWVH was silent on the hour. I am located near Chicago, IL and the reception was past midnight local. I do not remember the call sign, however the following web site indicates the call probably was BPM. <http://tufi.alphalink.com.au/time/time_hf.html> Joe, K9HDE _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
