[Antennas] 40m antenna on 10m

[Sam Morgan]

Last night when getting on my local 10m net, I mistakenly tuned up my 40m 
bugcatcher on 10m. I had previously tried to tune the bugcatcher on 20m with 
extremely poor results, signals were attenuated greatly, So I had *assumed* the 
40m antenna was just not going to work on anything above 10mc. It (with a tuner) 
loads and hears well on 30m.

The performance was amazing, signals that were S6 on my Hamstick were S9 +15 on 
the Bugcatcher. This is on 28.360mc. (hamstick is located on the same roof as 
the bugcatcher)

Here is the bugcatcher's info from the ground up. It sits at 20', on a 2nd 
story, flat, tar and gravel roof. There are 16 radials 13 foot long laying on 
the roof. There is a base coil tuning it for 40m. Then a 13 inch tall stalk of 
3/4 inch stainless pipe. On that sits a 6 inch by 6 inch coil, taped about 
midway. Out of the coil extends a 102 inch stainless whip. About 13 inches up 
the whip there is a high sierra top hat, which is made of 6 stingers 2 foot long 
at an angle about 30 degrees off the vertical plane. It's fed with about 80 feet 
of RG-213.

My question, what part of the vertical is actually radiating? The whole thing, 
just what's below the 6x6 inch coil, or everything below the top hat?

What ever it is, I was amazed, it's performance was equal to, or better, than 
signal strengths I use to get on a 5/8 vertical on 11m at a height of 35 feet. 
(I remember the signal strengths on receive from stations located about 10 miles 
out of town and how hard it was to hear them back then) They use to be S3 - S6, 
not S9+. Yes the lake station(s) were using low verticals and about 13 watts 
both times, then and now.
-- 
GB & 73's
KA5OAI
Sam Morgan