The linear loaded KLM 40 and 80M yagis never lived up to their hype. OTOH the little Cushcraft 2el 40 with loading coils plus a capacity hat way out on the elements is a proven winner. Ive sold one o
Bud boxes at Mouser or Hammond which are more expensive. I had Hammonds up for over 20 years and there has never been any moisture ingress. Last year when deciding to go with 2 wire reversibles I bou
Thats interesting Rick. One of the CC engineers wrote in QEX that high Q coils was not desired on their 40M. I dont remember exact details but it should be available thru the ARRL archives. The autho
The Hammonds I have used for over 20 years in the temperature and humidity extremes of NH are the basic 1591S series black ABS. Overkill may sound nice and may even be more covenient to obtain that s
With a sufficiently sized air coil the loss is very low, but with a ferrite toroid the core loss may be substantial. Loss in any form is additive to the ground loss. If forced into the situation Id u
If someone goes to a reputable CATV supplies distributor they will match you up with the correct cable, connectors and tools the first time around. Do not try to buy piecemeal and expect things to ma
Before I knew better, 30+ years ago, I had a 90' tower with 10-20 yagis shunt fed on 160. It was about 40' from the road on the NE thru SW side so many radials were very short and others ranged up to
Can you phase 2 wire reversible Beverages such as the offset close spaced type? Carl KM1H _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
Since the total current is divided into the number of radials you can compute the amount in each. I run 32 elevated all copper radials of #18 and 16 of a random mix and there is very, very, little po
To be brief: At a prior QTH a 100' tower was topped by 4 el 10/15/20 monobanders and shunt fed for 160. I started with 20 radials ranging from 60-130' to fit the property. Performance sucked for chas
Ive tested dozens of CATV splitters over 25 or so years and they range from falling apart as high as 7-8MHZ and many good to 80 but useless at 160. By good I mean at least a 10dB RL (2:1 VSWR) and 20
Did you open up a Cushcraft balun to discover that method? I believe some other companies do similar and Teflon wire is used so it doesnt char as does THNN. Carl KM1H ________________________________
With Sevick you had to wait an edition or two until he made corrections to some of his "assumptions". There was also a series in CQ that were often questionable. There would often be long discussions
Or a couple of relays to select band segment fixed caps. I did that at a prior QTH on 160 using 24VDC new surplus relays from All Electronics. Carl KM1H ______________________________________________
I used 4' x 50' rabbit mesh (2x4") that was welded, then galvanized and then plastic dipped for over 10 years at a prior QTH. It was purchased that way at a garden store. Galvanizing is very easy to
-- Never discount the ability of a low horizontal to do amazing things at times on 160. This not to replace the vertical but to augment it. Wire and a coax switch is cheap. Many on here remember the
Maybe your transceiver. Mine have a seperate receive antenna port as built that can easily be returned to the TX antenna with a toggle switch. The alternative is a high isolation coax relay that only
Having a strong high angle lobe can be a benefit when seperate receiving antennas are used. It keeps locals further away and is a favorite trick of contesters on all bands. With yagis just feed a sma
It doesnt matter what the radiator length is, the maximum FEED current is at the base if its a base fed antenna. Sevick showed decades ago that a very dense field of short radials is superior to less
I guess I havent been getting thru to a couple on here possibly since I wasnt explaining it well enough. Lets start by saying that I never said maximum FEED current and the antennas point of maximum