Intuitively, without actually modeling the array you converted to, the heavy radiation is near the dipole feedpoint. In the sideways V configuration the horizontal placement of the radiation was "fuz
Has to be a real one. If you want it to be powerful it has to be the only card you have from a rare country only manned once in the last twenty years that you haven't shown ARRL yet. And it will be d
There is something that happens to rookie cops a lot. Every driver is a closet speeder, if you can catch them. Everyone sitting in a parked car at night is up to no good, etc, etc... It has to do wit
In GENERAL, of course, I have NO argument with your statement of PRINCIPLE, nor have I posted such. But "shadowing" as used by various posters in this thread is an obsolete term that does not intuiti
I'm at work, so don't have my diagrams to look at, but I seem to recall that the 40N series DE has an inductor at the center for impedance matching, so it really ISN'T a split dipole. The conundrum y
I'm going to use a prop pitch to do that. (C31 & 340N). -- Guy Olinger, K2AV Apex, NC, USA I will run the C-31. primarily for sloping is pretty yagi from about 22' of I have rotor, have gain than tho
To all of you going nuts trying to figure out [or defend your perception of] the difference between a quad and a yagi... The most important set of dB's is in the mind of the contester. I remember a s
Tells me a LOT about that particular TH6, or it's feedline, or... -- 73, Guy Olinger, K2AV Apex, NC, USA 15 height... particularly good a very most the S1-S3, It was -- FAQ on WWW: http://www.contest
Absolutely. Just remember not to rivet the pieces. Don't bother with the goop. Push one rivet from each set of holes through the innermost hole, and wrap black tape around the element to hold the riv
There are other benefits besides pattern deterioration: Without the balun, something like 1/3 of our power can head back down the feedline shield as longitudinal current into our shack. This is usual
My Ace Hardware guy never heard of a stake driver. You got a brand/model number so I can have him look it up? Thanks & 73, Guy -- Guy Olinger, K2AV Apex, NC, USA And it think your Plus does for $15 c
A 60 foot boom you say? If you can put it up with a crane or a helicopter. And if you have a prop pitch to rotate it. Even then, have you ever seen a tower wind up underneath an antenna before it sta
The example you quote, C19 and 340N, is probably an exception that proves the rule. In general I agree with W8JI's assessment. These two antennas, though, carry time spent in *developing* an independ
You realize, of course, that you can buy those two antennas on the same boom, the C39XRN. The 40m driven element is between the 10 m reflector and the 15 meter reflector. 40m reflector is way out bac
It will also make a pooling place for water if the conduit does not run downhill away from the house. Not everybody can use conduit. The bend also makes it real hard to add content to it later on, be
In general these problems are very complex, requiring the kind of solutions below, on a very individual basis. Modeling everything, including tower, guys, etc in a vicinity, will allow you do an effe
Sure, you are compensating for a distance in the open with a piece of coax with that has the same velocity factor on the bands in question. It does assume that you are not using 1/4 wave matching sec
Would not be 1500 watts into the blocking filter. That would mean that no energy was radiated and all your transmitted power was being channeled (somehow) into the other band's elements. You would ha
Wouldn't it be easier to put a large cap between the bottom of the unun and ground, for DC blocking purposes? One of these 1400 pf, 15 amp caps? --. .-.. 73, Guy Guy Olinger, K2AV k2av@contesting.com
NOT a good idea to use water pipe as an elevated ground. What you have done with the water pipe is spread the RF through the house. It probably radiates a good deal. Sink a ground rod(s) outside as c