"Dave Oldridge" wrote in message
9...
"Dave" wrote in
:

Anyone have any idea as to the probable performance characteristics of
two whip 40" whip antennas mounted approx. six inches apart, and used
for receiving shortwave, primarily between 6 MHz and 12 MHz? Would
they be more receptive to a signal approaching f/b, as opposed to s/s?
Just wondering... Hoping someone can offer some advice as to whether
they would be in any way directional.

If they are simply in parallel, they would not have much directivity. But
if one were to be phase-inverted with respect the other, there would be a
strong null along the bisector of the line joining them.

The gain at 9mhz is on the order of -30dbi, though so you will need a good
receiver or even a preamp.


--
Dave Oldridge+
ICQ 1800667

Aha! A strong (or deep) null! That's actually what I'm looking for. So,
what would I look up to start learning how to set one up as phase-inverted?
I have a copy of Joe Carr's Antenna Handbook (think that's the title), would
it have anything on such a setup, do you think? What would I look for in
the ARRL Antenna Handbook? Does this type of setup have a name to search on?

And yes, compared to my 110' longwire, the signal is miniscule. But I'm
working on that.

Thank you so much, Dave, for this input. Now I have some idea as to what I
am looking for, (I *think*).

Much appreciated.

Dave Beane