What kind of improvement in performance is observed by providing a better ground, JC? And, where would a ground wire (counterpoise?) be connected with the DHDL antenna system? Thanks and 73, Nick VE7
So, is the ground wire just left "floating", JC? No electrical connection to the antenna itself? Thanks and 73, Nick VE7DXR The wire will reduce loss on the transmission line given a better match and
Hi Mark, Earlier this year on this list, K9LA posted the following: With respect to Wolf DF2PY's comment about very good propagation on polar routes when the A index and the solar wind speed are elev
Wasn't some of the apparent peaking of signals at sunrise due to improved signal to noise levels as noise levels drop at sunrise? 20 years ago for many of us, noise levels did actually drop at sunris
Thanks for the clarification Dave. When did you last see consistent SR peaks at your location? I suspect that http://www.swpc.noaa.gov/products/solar-cycle-progression shows the source of our difficu
Did the Europeans hear your barefoot transmission, but you were not able to hear their barefoot transmission Terry? Or were you both using webSDRs in each others' localities? (and was this on 160m?)
Roger's contention that sunrise peaking was not what it was decades ago has intrigued me, especially considering that he has pointed out that he can still observe the noise floor dropping at sunrise.
Hi Ash, I see that you are evaluating your Beverage antenna by using SWR. Have you actually adjusted the termination resistance to null medium-wave broadcasters located off the back end of the antenn
DuckDuckGo brought up this at the top of its search: http://kk5jy.net/LoG/ Presumably that is what you mean? best wishes, Nick VE7DXR At 19:04 2018-08-01, CUTTER DAVID via Topband wrote: Drifting the
Does the article referenced then not go on to describe a phased array of two LoG's (Figure 7)? Nick VE7DXR However, the Waller Flag is a dual loop that trades off signal for pattern. The LOG simply t
Have you looked at http://www.afedri-sdr.com/index.php/new-afe822x-sdr-net-dual-channel ? 73 Nick VE7DXR the lowly Red Pitaya will do it.. 73, w5xz, dan Hi gang, Are there any resources out there lis
But doesn't the graph referenced in your link https://spaceweather.com/repeat_images/crinfo2.png indicate that the greatest strength from cosmic rays was 2009-2010, when trans polar conditions were a
Isn't the auroral zone centered on the "geomagnetic pole" rather than the "magnetic pole"? Given that the geomagnetic pole is hardly moving at all in comparison with the magnetic pole, that would ind
See http://www.hard-core-dx.com/nordicdx/antenna/special/mfj1026.html Jeff; it was a mod. Nick VE7DXR I thought the 1026 included the BC band, or was that a mod ? Jeff Reynolds I based that on what W
Does anyone know if the "ISES solar cycle Ap progression" graph (example at http://n5pa.com/swpc-solarcycleapprogression.php) is no longer being provided? (or being provided elsewhere?) NOAA has rece
Thanks Carl and Steve. Useful suggestions there, if they really have dumped the graph of monthly Ap. Nick At least they corrected the vertical axis of the 10.7 cm solar flux plot - it used to say sun
Your "loop ground" made me recall the US military "surface wire ground", Chris, which was (is?) used for mobile applications, and is often configured as a loop of wire, held down by metallic stakes,
http://durenberger.com/wp-content/uploads/2019/11/BEVERAGE-ANTENNAS-IN-THE-DESERT.pptx presented at an International Radio Club of America conference a couple of years ago used a Cat-5 antenna as bot
You might also check: https://www.ircaonline.org/editor_upload/File/TIS_2020.pdf IRCA is a MW DXers' club with a number of people who actively try to receive these flea power stations. 73 Nick VE7DXR