Just remembered one other thing, the hours I use are SOLAR noon to SOLAR 2 pm. Where I live daylight time 10 am is 9 am standard time, and 8:50 am Solar time. In Lexington, Ky, USA that would be 8:23 AM. So during summer, I wait until 1 pm to measure. HOWEVER...
Even then there can be residual propagation. I send a test CQ at 1.5 kw, and look at what pops up on RBN. If it only hits W4KAZ, I'm fine. If I hit KC4YVA, 149 miles away in Richmond, VA, I know there is reduced absorption and the reading to KAZ could be affected. There have been days when at 2 pm solar I was hitting YVA at 20 dB. Most days at 8:30 am solar, I'm still hitting RBN's in Ohio over 400 miles away. So you can't just do it any day at a certain time. You have to test for sky wave first. 73, Guy K2AV On Fri, Sep 13, 2019 at 11:41 AM Clive GM3POI <[email protected]> wrote: > Try it at midday. 73 Clive GM3POI > > -----Original Message----- > From: Topband [mailto:[email protected]] On Behalf Of Roger D > Johnson > Sent: 13 September 2019 10:11 > To: Towertalk Reflector; Top Band Reflector > Subject: Re: Topband: [TowerTalk] Skip Distance > > These test were in late morning to early afternoon. > > 73, Roger > > On 9/12/2019 9:02 PM, Roger D Johnson wrote: > > I've been running some tests on my 8 circle array with K1JB. Joe is 17 > miles > > away and I sometimes notice deep fading on his signal. Makes plotting the > > antenna pattern very difficult. Is it possible to have skywave > contamination > > at this short range? > > > > 73, Roger > > _______________________________________________ > > > > > > > > _______________________________________________ > > TowerTalk mailing list > > [email protected] > > http://lists.contesting.com/mailman/listinfo/towertalk > > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > > > This email has been scanned by BullGuard antivirus protection. > For more info visit www.bullguard.com > > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
