"gudmundur" wrote in message
...
I do sound work at horse shows, and would like to provide my audio source
to vehicles parked at the show. I have a real nice 100 milliwatt input
1.6mhz transmitter which shows about 60 milliwatts of output at 50 ohms.

I would like to build a transmitting antenna that would be 4 feet in
length
and having the 3/8 24 thread at the bottom so I can fasten it into my
hamstick
mag mount base.


The best range has been reported using a Part 15 antenna mounted high and
in the clear on a metal structure--20 feet of water pipe will do. Do a web
search
for "part 15 am antenna" and you will get a lot of hits.

Now, the problem with part 15 is the interpretation. Some field engineers
will
argue that the loading inductor wire length should be counted against
against
the three meter total length permitted for the antenna and "ground lead".
The
six foot "ground lead" is also subject to interpretation... If you look at
some
of the better commercial units, they use a shielded loading coil, with a
110
inch or so whip.

Pete