Good evening Frank. Just got in from work. I was talking mainly about 160. Before 2019 I was a true alligator! 73, John, W4NU
Get Outlook for iOS On Tue, Jun 30, 2020 at 5:54 PM -0400, <donov...@starpower.net> wrote: Hi John, 250 feet isn't a short Beverage on 80 meters, it should perform superbly. In my -- now long ago -- professional life we built and operated phased arrays of up to 64 Beverages all the way up to 30 MHz, feeding SDRs, and they worked superbly. 73 Frank W3LPL ----- Original Message ----- From: "John Harden, D.M.D." To: topband@contesting.com Sent: Tuesday, June 30, 2020 8:05:56 PM Subject: Re: Topband: Some experiments with a short beverage, not succeeding very well I have never had any luck with short beverages, EWE's, FLAGS, low dipoles, etc. Total waste of time. In 2010 I went to the Hi-Z 3, then the Hi-Z 4, and finally the Hi-Z 8. I hear stuff I have never heard before.. Since then I added a Waller FLAG on a 34 ft boom at 95 feet... Best moves I ever made.. 73, John, W4NU On 6/30/2020 3:04 PM, Brad Rehm wrote: > Mark, > > I didn't see any mention of a preamp. Signals from a good Beverage are > typically 20-30 dB below what you'd hear from a dipole or a vertical. > Everything else you've done looks good. Keep it up! > > 73, > Brad KV5V > Salado, Texas > > On Tue, Jun 30, 2020 at 1:57 PM Mark Lunday wrote: > >> "Beverages just want to work" is what I have heard. >> >> Not having much luck with that here. I suspect operator/installation >> error. >> >> I did a lot of reading and I must be doing something wrong. >> >> >> >> * 250 feet of insulated wire strung out in 030 degrees direction >> toward EU, pretty straight, varying in height from 4 to 6 feet, running >> through thick brush with no metal objects or artificial elements along the >> run. >> * 9:1 transformer at feed point with ground rod >> * 300 feet of coax, mix of RG-8, MMR-400 to get to the edge of the >> woods from the house >> * No terminating resistor >> >> On bands 160-40, the signals are very weak. I am monitoring WSPR, FT8. I >> can hear signals on 160-40 but they are way down compared to dipoles and >> inverted L on the same bands. Like 20-30 db down. From what I read, I >> should NOT need an HF pre-amplifier, right? >> >> Signals on 30 and 20 seem to be better and I can copy some DX from EU on >> FT8. >> >> I will try installing a new ground rod, the old one is 10 years old and >> perhaps not making a good ground connection at the feedpoint. The >> transformer is brand new, so that's not an issue. The coax has tested out >> fine. Soil is central North Carolina clay, a bit dry at this time. >> >> I am guessing performance is poor on 160-40 because of the short length >> and that it's bi-directional (no terminating resistor), which I am seeing >> on 30 meters. But I did not think it would be THIS bad on 160-40.... >> >> Mark Lunday, WD4ELG >> Greensboro, NC FM06be >> wd4...@arrl.net >> http://wd4elg.blogspot.com >> SKCC #16439 FISTS #17972 QRP ARCI #16497 >> >> _________________ >> Searchable Archives: http://www.contesting.com/_topband - Topband >> Reflector >> > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector