Ron,
It's mainly a matter of convenience, or maybe you only
have enough feed line for one feed line.
Depending on 'how' you use the connected-together antennas,
only for use on the intended bands they are cut for, or as
multiband antennas, it might be simpler to use seperate feed
lines for each.
As for the 'best' way of connecting two or more antennas
for use on a single feed line, attach them to whatever you're
using for a center insulator, the second antenna just like the
first one. There are a number of 'mechanical' ways of doing
that and the 'best' is which ever is easiest for you (or how
ever you know how to do it). As you'd expect, the connections
should be strong enough, light weight enough, and sort of
'pretty' enough to satisfy the antenna's requirements and any
'significant other' that's around (wife, neighbors, landlord,
etc.).
Using seperate feed lines and an antenna switch makes the
process of tuning the antennas a bit 'easier', probably won't
take as long. Which ~may~ be the only difference depending on
how/where you erect the antennas.
Of course, using antennas that are high, widely seperated,
and
fed seperately is always nice! If you have the room, the
required
feed lines, a switch, the time to do it, and so on (I wish!)...
'Doc

On Fri, 21 May 2004 10:53:23 -0500, 'Doc wrote:

Ron,
It's mainly a matter of convenience, or maybe you only
have enough feed line for one feed line.
Depending on 'how' you use the connected-together antennas,
only for use on the intended bands they are cut for, or as
multiband antennas, it might be simpler to use seperate feed
lines for each.
As for the 'best' way of connecting two or more antennas
for use on a single feed line, attach them to whatever you're
using for a center insulator, the second antenna just like the
first one. There are a number of 'mechanical' ways of doing
that and the 'best' is which ever is easiest for you (or how
ever you know how to do it). As you'd expect, the connections
should be strong enough, light weight enough, and sort of
'pretty' enough to satisfy the antenna's requirements and any
'significant other' that's around (wife, neighbors, landlord,
etc.).

I own the house, we have a 2 acre minimum and my XYL is a ham . . .
KB1FZM :-)

Using seperate feed lines and an antenna switch makes the
process of tuning the antennas a bit 'easier', probably won't
take as long. Which ~may~ be the only difference depending on
how/where you erect the antennas.
Of course, using antennas that are high, widely seperated,
and
fed seperately is always nice! If you have the room, the
required
feed lines, a switch, the time to do it, and so on (I wish!)...
'Doc

I have the space but my lot is heavily treed. That is the way we like
it, so I would rather not cut any trees. The antennas will cross each
other, so it will benefit me if I can tie them together at the center.
My 40 m antenna didn't survive the winter.

Thank, Ron W1WBV

What u r describing is a "multi dipole".

I have used combo 75 and 160 fed with same RG58 and had no problems.

73 de Jack, K9CUN

On 21 May 2004 23:45:36 GMT, (JDer8745) wrote:

What u r describing is a "multi dipole".

I have used combo 75 and 160 fed with same RG58 and had no problems.

73 de Jack, K9CUN

Yeah, I suppose that would be the same as a multi-band dipole. I guess
I just assumed there would be an impedance mismatch if I did that.

73's

Ron, W1WBV

Yes I forgot to add that each antenna was 1/2 wave long.

Jack