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On Oct 14, 12:34 pm, Frnak McKenney
wrote: Tim, Thanks for joining in. On Sat, 13 Oct 2007 17:27:01 -0700, Tim Shoppa wrote: Frnak McKenney wrote: I'm in Richmond, Virginia and I'm trying to noticeably improve my reception of WWV's 10MHz signal from Fort Collins, Colorado. It all seemed so simple, two weeks ago: wind some wire, solder a connector, and Hey...presto! a clean WWV signal. grin! --snip-- Frank - I am up in Maryland, not too far from you. WWV on 10MHz is only usable for about a third or less of the day for locking an electronic clock. Generally the late afternoons and evenings are great, early afternoons and mornings are a little more variable. Overnight 5MHz works best. During the mid-day 15MHz or when propogation permits 20MHz rules for WWV. I don't think your Heath has any frequency diversity capability, right? Well, 10MHz is a pretty good choice if you only have a choice of one, it is usually coming in strong in the evenings there. Over wintertime 5MHz gets pretty good at night. My current box, the MAC-II, only monitors 10MHz; its predecessor, the GC-1000 MAC, monitored (IIRC) 5/10/15MHz and chose the strongest. You will, especially in the early morning, occasionally hear WWVH on 10MHz or 5MHz or 15MHz. Sometimes I hear both WWV and WWVH at the same time. You can recognize WWVH by the woman's voice reading the time. My best antenna for 10MHz WWV is my 40-meter dipole strung between two trees. Mine mostly points broadside to the NE/SW but if you could arrange it, it would be slightly preferable to have it broadside to be sensitive to the W. A dipole optimized for 10MHz would be even shorter - the formulas put a half wave dipole at 47 feet long. Thanks for your signal report and the antenna suggestion. I'll keep it in mind. On the other hand, my tuned (and currently horizontal) loop is suddenly picking up WWV/10MHz remarkably reliably, and I didn't even have to "sacrifice a goat at midnight"! grin Has your reception improved lately as well (last few days)? Don't know about WWV in particular, but this past weekend on the ham bands there was an obvious uptick in propogation conditions. The MUF was up enough that I heard several pileups on 15 meters and 40 and 30 Meters were more hopping than usual in mid-day/early evening. Tim. |
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