: [Elecraft] 6 meter beam - OT
Gary wrote:
I find I have a place for a 6 meter beam. I don't have one but would like
o make one if feasible. Does anyone know of good plans for a 6 meter
eam that would be realistic to make?
As someone else noted, G0KSC has a whole bunch of interesting designs on his
web
Gary wrote:
I find I have a place for a 6 meter beam. I don't have one but would like
to make one if feasible. Does anyone know of good plans for a 6 meter
beam that would be realistic to make?
As someone else noted, G0KSC has a whole bunch of interesting designs on his
web site but I especially
I find I have a place for a 6 meter beam. I don't have one but would
like to make one if feasible. Does anyone know of good plans for a 6
meter beam that would be realistic to make?
Might as well use the 6M ability of the K3
Thanks,
Gary
KA1J
Hi Gary.
DK7ZB (http://www.qsl.net/dk7zb/start1.htm) has a lot of good designs.
I recently discovered the new promising design of G0KSC
(http://www.g0ksc.co.uk/) and I plan to change my DK7ZB yagis to the
design og G0KSC.
Vy 73 de Svend, OZ7UV
Gary wrote:
I find I have a place for a 6 meter
Hi Gary,
What length of boom would be practical for you?
In Canada I used homebrewed yagis on 6m from 1956 onwards, singles and
stacked, which were not difficult to build, and if I still have the
construction detail for the 6 el yagis on 24ft booms I could send it to you,
if 24ft is not too
Hello Gary,
Welcome to the Magic Band! The K3 is a GREAT radio for 6m! You can compare
some
of the most popular 6m antennas on my web page here:
http://www.bigskyspaces.com/w7gj/6mTable.htm
Hams all around the world have had very good success and repeatability building
50
ohm yagis
://www.cebik.com/content/a10/vhf/66.html.
GL 73,
Lenny W2BVH
- Original Message -
From: Gary Smith g...@ka1j.com
To: elecraft@mailman.qth.net
Sent: Thursday, March 18, 2010 2:18:45 AM GMT -05:00 US/Canada Eastern
Subject: [Elecraft] 6 meter beam - OT
I find I have a place for a 6 meter beam
If you're looking for a relatively compact six meter beam antenna, consider a
three element quad.
Dimensions are available at http://www2.mmae.ucf.edu/~ssd/ham/quadcalc.html,
which has a Java calculator for various quads, based on formulae developed by
the legendary antenna guru, L. B. Cebik,
Lew Phelps K6LMP wrote If you're looking for a relatively compact six
meter beam antenna, consider a three element quad.
Or a four element, see my web pages for the dimensions of a portable 4
element quad http://www.astromag.co.uk/quad/
It might not be what you want, but
Hello Gary,
Just be careful comparing information you receive from different sources! That
is
why we put together the VE7BQH comparison table, with all antennas listed in
FREE
SPACE GAIN COMPARED TO A DIPOLE (DBD). Gain figures look unbelievably good
when an
antenna gain in dBi is
Great construction notes, Dave!
However, I don't see the advantage of the longer boom and fourth element
required with your design. With the 3 element design I described, free space
gain (as modeled with cocoaNEC) is virtually the same as your four element
design, while boom length is only
OK, point well taken. I was comparing dBi (isotropic antenna) to dBd (dipole),
and that is not appropriate. However, the gain figures I quoted are free space
calculations.
To correct the comparison, the free space difference is 2.15 dB
(reference:
For comparison, a 2 element quad, with a boom length of
about one meter, has only 7.07 dB gain, and although the
four element quad gives you an additional 0.8 dB gain with
the additional element, it comes at a high price -- the
boom is almost 30 feet long!
For a Yagi to achieve gain
Wow, many great replies!
I am going to make an antenna for 6M, just seems like the right thing
to do. I am somewhat height challenged as the house is a one story
and the rotor is on a roof mount. Realistic height is probably 25-30'
tops to the top of the rotor. On the other hand, the house is
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