Maybe someone can enlighten me

[KJ3N]

Can anyone figure out what this guy expected, other than a miracle?

http://www.eham.net/ehamforum/smf/index.php/topic,100680.0.html

[KG4NEL]

It looks sort of like the bait I used to use to catch squid as a kid on Martha's Vineyard.

I'd chuck it in the water and see what bites.

[NA4BH]

You should tell him to try a fractal vertical antenna. Probably work as good as the one he has now. :lol:

[N8YX]

Can anyone decipher the following?








The flat dipole configuration would be best for gain side-to-side but the SWR would be above 1.5 to 1 because of impedance around 70 ohms. It would not be good for QSOs with stations with vertical antennas.

[W3WN]

Can anyone figure out what this guy expected, other than a miracle?

http://www.eham.net/ehamforum/smf/index.php/topic,100680.0.html
Well, let me put it this way...

40 years ago, he'd have bought a Gotham vertical. Ya know what I mean?

[W3WN]

Can anyone decipher the following?
The flat dipole configuration would be best for gain side-to-side but the SWR would be above 1.5 to 1 because of impedance around 70 ohms. It would not be good for QSOs with stations with vertical antennas.
(a) Gain off the sides of the antenna is better when it is configured as a linear dipole, not an inverted V
(b) SWR in the above configuration will be higher because a linear dipole has a characteristic impedance at the center feed-poin of 70-75 ohms, whereas an inverted V has a characteristic impedance of 50 - 52 ohms.
(c) Because the flat dipole is radiating in the horizontal plane, thus horizontal polarization, it won't work well when communicating with stations running vertical polarization.
(c1) Whomever wrote (c) above is full of male bovine animal waste byproduct.

[KJ3N]

Well, let me put it this way...

40 years ago, he'd have bought a Gotham vertical. Ya know what I mean?

No, I don't. That's quite a bit before I got into ham radio. Please elucidate.

[WØTKX]

LOL, the Gotham Vertical. (https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCAQFjAA&url=http%3A%2F%2Fwww.w8ji.com%2Fgotham.htm&ei=kUarVJ2dLNGhyATH44KoAw&usg=AFQjCNH-qc1e-4KRcrX1HNg_fsB7mPTXYQ&sig2=wqeVmw-vQs87k30z3tnFaQ)

http://www.cpinternet.com/~rickb/gothamv80_files/image002.jpg

[KJ3N]

Antenna ads from the 50s and 60s? Boy, some of you are really old farts. :neener:

I imagine that the CHA-250B is the modern equivalent of the Gotham.

[kb2vxa]

And second cousin to the bat wing dipole.

[W3WN]

Antenna ads from the 50s and 60s? Boy, some of you are really old farts. :neener:

I imagine that the CHA-250B is the modern equivalent of the Gotham.Reread the ad. Glowing testimonial about this "miracle" antenna from K6INI, right?

Guess who owned Gotham Verticals?

...

The basic concept of the GV wasn't bad... an vertical with a loading coil. Of course, it would have helped if it was actually resonant, and if the buyer knew that he/she had to lay down a few radials. Oh, and that it was thin, cheap aluminum that was prone to breaking in high winds... and not so high winds... want to know how I know that?


No Jim, I guess you don't get it. But that's ok. Now GTFOML, kid...

[WØTKX]

:snicker: