On Sun, 17 Feb 2008 13:44:05 -0800 (PST), Swoozie Pellegrino
wrote:

Try the Half Sloper if you could.
It is quarter wave wire suspended between balcony and run at about 45 deg
down to a tree or whatever. There is a good chance you will end up with 50
ohm impedance and can be fed directly with a coax, shield connected to metal
railing or door frame and center wire to the antenna. Trim to frequency.

1. After I wire up the antenna & coax as described above,
can I do my trimming to frequency by using only the radio's
SWR meter, or do I need an external tuner at the wire?

Cut the wire long, and trim by small increments. If you are still
trimming well after it is obviously shorter than a quarter wave,
further trimming might find resonance, but you could be bucking up
against unknowns (this is not likely to be big problem however).

2. This radio can output 100W on HF. Can't this setup
with a 10m length of 26-gauge magnet wire handle
this?

And more.

3. I may need to run up to 30' of coax. What type should
I buy?

Common radio shack stuff will work fine. You can spend more,
certainly, but if your antenna is tuned, no one will be able to tell
the difference at the far end between hardline and RG156 (you won't
find that at RS, probably, but there is a lot of RG8X).

However, it you can put up one wire for one band (no tuner? THAT is
odd) you can as easily put up three, four or five as a fan sloper (or
dipole, or monopole...) and not have to worry about SWR for one band
or several. It takes only slightly more construction ingenuity and
effort, but perhaps it may be too much visual exposure that draws the
unwanted eye (which, I suppose, is why you are using magnet wire in
the first place).

73's
Richard Clark, KB7QHC