The DXers world varies by country but 20-30KHz is about it. Go to the big playpen up higher for gossiping Ah, we're back to that old saw -- don't muck with 'dem DX chasers!!! OK, I've learned my less
A 175' run of 5 Slinkys will have about the same directivity as a 550' or so Beverage, a bit better SNR and still enough signal to not need a preamp most of the time. Its still a Beverage. Statement
Far from clever, the typical QRPer has crappy antennas on any band and are mostly just an annoyance on 160 after dark. OTOH Ive QRP DXCC from 160-10M but the antennas did most of the work. Im also up
While I would never buy anything from DXE that I can do a whole lot cheaper Ive been running voltage down runs of CATV hardline up to 750' for Beverage switching for up to 22 years with no such probl
I have found that the cascaded 800Hz mechanical filters in my 75A4 to have less ringing and IMD induced noise than a TS-940 or 950SD with any of the 250, 400, or 500Hz selections. Rather than reducin
One of the best receivers made for noisy bands is the RCA designed pre WW2 USN RAK/RAL pair. Regen design with 2 TRF stages and a rather unique audio AVC/Limiter and excellent audio selectivity for C
The Ranger is a perfect rig to drive a linear; a SB-220 is fine at 250W out on AM as long as youre not longwinded. When Im not running one of the big Class C amps I use a LK-500ZC at 350W and drive w
surrounded by 100+ other units making electronic noise and the poor owner is trying to hear something on his $59 allband Chinese toy. Carl KM1H _______________________________________________ UR RST
Long before everyone was an expert on ferrites and grounding in the early 80's I had 100' of 25G with a 10 to 20M Christmas tree of PV-4 yagis plus a 220 vertical on top for simplex voice and another
I agree that the opportunity is there if you can convince the other end to start early. Carl KM1H _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
That East-West problem is almost a daily occurance over here with EU and especially with a vertical. Ive had relatively decent results with a 180' high dipole until the angles shift to favor the vert
Since there is no need to run any cables inside the tower I wouldnt worry about it. As long as there is good RF contact between sections it should work well from 160 to wherever you want as many have
That chart is about as obsolete as a 6V automotive electrical system. The problem with Sevick and others is they do a test in their own back yard with a minimum of test equipment and then rush to see
can never pay too much attention to the ground system.....If you dont want to waste time get an antenna analyzer which will quickly tell you when you have reached the optimum point. And I'll keep re
There have been several reports of established AM stations that the FCC gave permission to replace a decayed or destroyed inground radial system with elevated radials or an elevated mesh/radial arran
Ive copied US BCB stations as far inland as Chicago in the far eastern Meditaranean. Id be curious what the propagation mode was and if sky wave how many hops? I also regularly hear the LF BCB statio
While another theory holds that at a common grayline on some paths it is more likely that a high angle lobe enters a duct of some kind and exits at the far end _______________________________________
The BCB stations migrated from 1/2 and 5/8 wave antennas, diamond shaped towers, and mountain tops by the early to mid 30's as they started to understand how things worked...or didnt. Carl KM1H _____
Narrow it due to it being a bit less ground dependent plus the high Q of the capacitor. Carl KM1H _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
At the prior QTH the shunt fed tower with a 4 el 10-20M Christmas tree was resonant at 1520KHz and worked "gangbusters". While this was only around 107* vs 90* I see no reason that a bit taller would