Re: Topband: Topband Digest, Vol 239, Issue 13
I tried getting through to you but couldn’t quite make it. You were maybe 339 here in central Ky. 73, Bill WE5P Comfortably Numb > Date: Wed, 16 Nov 2022 07:17:31 + (UTC) > From: Andree DL8LAS > To: topband reflector > Subject: Topband: Condx 160m in EU last night > Message-ID: <1577364341.893324.1668583051...@mail.yahoo.com> > Content-Type: text/plain; charset=UTF-8 > > I had a very nice 160m band evening/ night. First I worked Dietmar HS0ZFV > with a really good signal by my first call. Than I called CQ and had a nice > US pileup. Occasionally worked Kim HL5IVL after his CQ. Than I went back to > my frequence and worked a lot of DX. I am happy to found some new calls in my > log. At the end I had 40 QSO's only with NA.Really a surprise after month of > bad condx on topband. > 73 Andy DL8LAS _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: RDC TL8AA
Hello Alfredo, The MOST IMPORTANT things to know about propagation on 160M are: 1) Propagation on 160M has a strong peak for 30-45 minutes on the DAYLIGHT side of sunrise and sunset. The peak lasts about one hour on 80M and 2 hours on 40M. I suspect that it is also present on 30M. 2) Propagation on 160M often acts very much like the sun peeking through clouds drifting overhead. 3) Experienced DXpeditioners have learned that very strong propagation on 160M usually happens on only one or two nights of a 2-week expedition, so it is critical to be on the air through the hours of darkness and for that 30-45 minutes of daylight on both sides. AA7JV thought this was so important that he developed a transmitting diplexer and RX antenna filters so that his trips could be simultaneously active on both CW and FT8 during these hours every day. 73, Jim K9YC On 11/16/2022 4:59 AM, alfeo...@tin.it wrote: Hi Guys, the propagation is very good on the high bands therefore the low bands are almost dead. We made some test last night on 160m FT8 and just few qso with very weak signal. We would like to make some test on 75 - 160m CW as per the following schedule (GMT time, depending on conditions) - Our sunset today at 04:30 - 05:30 PM (at our latitude the switch time light to dark and vice versa is very short) - Tonight at 09:00, 10:00, 11:00 PM - Tomorrow morning at our sunrise 04:00 - 04:45 AM We might test FT8 as well. Based on the result we will plan actions for the next days. Hoping to have you all in log. Alfeo I1HJT I.D.T. member TL8AA - TL8ZZ crew _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: FW: Band conditions
One common misunderstanding is that propagation on low bands is bad when high bands are good. When solar activity is high, the solar flux increase and allows F2 reflection on the high bands , 15.12 and 10m. The MUF is way up. However for 1.8 or 3.5 MHz the MUF is always good, and the reflection is on lower layers F / E, at night F1 and E become almost one layer. So.. 160m is open every night, it does not depend on the MUF. What change is the large number of Es clouds the create duct, most common on solar maximum. Also long path is more friendly when the path cross the magnetic equator. Spot light is very defined during solar maximum. That makes propagation on 160m, very interesting with long ducts and spot light. If both station does not call CQ they never going to figure it out. Signals can be very strong on both side of the path. Larry web page K9LA has a fantastic book from NM7M's book titled "The Big Gun's Guide to Low-Band Propagation" is in the 160m link. The propagation on solar maximum is just different from solar minimum. 73's JC N4IS _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: Band conditions
Yes, 160 at last seemed to be working for the first time this season. Three of us here were getting hits on NA RBNs from 2100z onwards when there must have been broad daylight at the other end. Conditions were equally good this morning around our sunrise at 0730 but there was zero NA activity. Richard G3OQT _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Condx 160m in EU last night
Even after 35+ years of doing the Topband dance, I am still "surprised" at how selective propagation can seem to be. Yes, I know all about S/N on each end of the path, etc., etc. But when Andy speaks of working 40 NA, I am surprised. During that same timeframe here in rural VA, I heard ONLY 1 EU station. With deep, rapid QSB, G3PQA was peaking S9, well above my noise floor. I've seen this play out over and over in intriguing ways. There have been a few times when the pair of G3s were spotted, but I had zero copy on YRO, yet Q5 copy on PQA. Another example is DL8LAS (sorry Andy). While he seems to be working the world with ease, there have been so many times when all of EU was boiling in, but no copy on Andy. Occasionally the opposite is true. A JA, VK or EU station is coming in beautifully, but I can't work them to save my life. After two major downsizings since the move to VA in 2014, I suppose any sane person would have (should have?) relegated TB to a fond memory. However, it is these surprise moments that keep me intently glued to the radio, sifting through the noise and static. To all you TB-ers who have managed to pull my signal out of the noise... Thank you! Jim - WS6X -Original Message- From: Topband On Behalf Of Andree DL8LAS via Topband Sent: Wednesday, November 16, 2022 2:18 AM To: topband reflector Subject: Topband: Condx 160m in EU last night I had a very nice 160m band evening/ night. First I worked Dietmar HS0ZFV with a really good signal by my first call. Than I called CQ and had a nice US pileup. Occasionally worked Kim HL5IVL after his CQ. Than I went back to my frequence and worked a lot of DX. I am happy to found some new calls in my log. At the end I had 40 QSO's only with NA.Really a surprise after month of bad condx on topband. 73 Andy DL8LAS _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: RDC TL8AA
Hi Guys, the propagation is very good on the high bands therefore the low bands are almost dead. We made some test last night on 160m FT8 and just few qso with very weak signal. We would like to make some test on 75 - 160m CW as per the following schedule (GMT time, depending on conditions) - Our sunset today at 04:30 - 05:30 PM (at our latitude the switch time light to dark and vice versa is very short) - Tonight at 09:00, 10:00, 11:00 PM - Tomorrow morning at our sunrise 04:00 - 04:45 AM We might test FT8 as well. Based on the result we will plan actions for the next days. Hoping to have you all in log. Alfeo I1HJT I.D.T. member TL8AA - TL8ZZ crew _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
