Anyone Have Plans for Dual Band Beam 2m/70cm?
 

Does anyone have plans for constructing a 2 meter/ 70 cm Dual band Beam? Any
help would be appreciated.

Thanks in advance
Joe Roske
KD8CAP

my plan would be to construct a 2m beam, then construct a 70cm beam, and
just mount them near each other.

"jroske" wrote in message
...
Does anyone have plans for constructing a 2 meter/ 70 cm Dual band Beam?
Any help would be appreciated.

Thanks in advance
Joe Roske
KD8CAP

There ia a small program thatmakes it very simple to build a lpda antenne
that works on two harmonic bands.
I think it was LPDA.exe and was made by a german Ham.


"jroske" schreef in bericht
...
Does anyone have plans for constructing a 2 meter/ 70 cm Dual band Beam?
Any
help would be appreciated.

Thanks in advance
Joe Roske
KD8CAP

"jroske" wrote in message
...
Does anyone have plans for constructing a 2 meter/ 70 cm Dual band Beam?
Any
help would be appreciated.

I've seen a quad set up for dual bands.
The elements for the 70 cm band are so small, they don'r interefere with the
2m band

"Hal Rosser" wrote in message
...

"jroske" wrote in message
...
Does anyone have plans for constructing a 2 meter/ 70 cm Dual band Beam?
Any
help would be appreciated.

I've seen a quad set up for dual bands.
The elements for the 70 cm band are so small, they don'r interefere with
the
2m band

How about the 2M elements being seen by the 70cM elements- close to
resonant at 3 wavelengths circumference?

Dale W4OP

Hal Rosser wrote:
The elements for the 70 cm band are so small, they don'r interefere with the
2m band

But the opposite may not be true since 444/3=148.
--
73, Cecil http://www.qsl.net/w5dxp

On Tue, 11 Oct 2005 01:21:01 GMT, Cecil Moore wrotF:

Hal Rosser wrote:
The elements for the 70 cm band are so small, they don'r interefere with the
2m band

But the opposite may not be true since 444/3=148.

L.B. Cebik has an article on a dual band quad. He uses element
placement to reduce interaction between the 2m and 70 cm elements.
http://www.cebik.com/vhf/satq.html

Mike M wrote:
"L.B. Cebik has an article on a dual band quad. He uses slement
placement to reduce interaction between the 2m and 70cm elements."

Sure. Mount the elements for one band at right angles to those for the
second band.

Best regards, Richard Harrison, KB5WZI

Try this link for ideas. http://www.cushcraft.com/support/pdf/a27010s.pdf

Phil, KB2HQ

"Richard Harrison" wrote in message
...
Mike M wrote:
"L.B. Cebik has an article on a dual band quad. He uses slement
placement to reduce interaction between the 2m and 70cm elements."

Sure. Mount the elements for one band at right angles to those for the
second band.

Best regards, Richard Harrison, KB5WZI