I have read conflicting reccomendations about feeding this with 450 ohm
ladder. 300, ohm twin lead or using coax with a balun.
Are the any resons to pick/or not use any othe the above systems? Also my
tuner is an MFJ 941-D and the rig is a Kenwood
TS680S. At some point I will upgrade the rig. Should I look for a better,
moderately priced, tuner to help as intend to work
as many bands a I am able. I will of course be playinhg with building and
testing may homebrew antenna in the future.IOW
is my tuner a POS or is it passable for the time being.
TIA
Lou KE6LZS

Lou W wrote:

I have read conflicting reccomendations about feeding this with 450 ohm
ladder. 300, ohm twin lead or using coax with a balun.
Are the any resons to pick/or not use any othe the above systems? Also my
tuner is an MFJ 941-D and the rig is a Kenwood
TS680S. At some point I will upgrade the rig. Should I look for a better,
moderately priced, tuner to help as intend to work
as many bands a I am able. I will of course be playinhg with building and
testing may homebrew antenna in the future.IOW
is my tuner a POS or is it passable for the time being.
TIA
Lou KE6LZS

An 80M inverted V will work just fine on all bands using your 941D. There
is nothing wrong with the rig. The difference between expensive 450 ladder
line and the cheapest 300 twin lead will be insignificant. I ran my
inverted V for 13 years using cheapo twin lead and never had a problem
with dust, rain, or anything that the naysayers can come up with. If you
use coax and a balun you will only be good for 80M.

Hope this helps...

Irv VE6BP
--
--------------------------------------
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Beating it with diet and exercise!
297/215/210 (to be revised lower)
58"/43"(!)/44" (already lower too!)
--------------------------------------
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--------------------
Irv Finkleman,
Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP
Calgary, Alberta, Canada

On Wed, 22 Sep 2004 01:10:35 GMT, Irv Finkleman
wrote:

Lou W wrote:

I have read conflicting reccomendations about feeding this with 450 ohm
ladder. 300, ohm twin lead or using coax with a balun.
Are the any resons to pick/or not use any othe the above systems? Also my
tuner is an MFJ 941-D and the rig is a Kenwood
TS680S. At some point I will upgrade the rig. Should I look for a better,
moderately priced, tuner to help as intend to work
as many bands a I am able. I will of course be playinhg with building and
testing may homebrew antenna in the future.IOW
is my tuner a POS or is it passable for the time being.
TIA
Lou KE6LZS

An 80M inverted V will work just fine on all bands using your 941D. There
is nothing wrong with the rig. The difference between expensive 450 ladder
line and the cheapest 300 twin lead will be insignificant.

In the States, it's getting hard to find 300-ohm twinlead anymore.
450-ohm line might be his only choice for a balanced transmission
line.

bob
k5qwg

I ran my
inverted V for 13 years using cheapo twin lead and never had a problem
with dust, rain, or anything that the naysayers can come up with. If you
use coax and a balun you will only be good for 80M.

Hope this helps...

Irv VE6BP

I agree with Irv, I used 300 ohm tv line availabe at Radio Shack, Home
Depot and Menards for 25 years, on an 80 meter dipole. I used several
different tuners WITHOUT a Balun and fed the line directly. You can even put
a couple of short leads on a PL259 and splice it to the Twin line if the
only output your tuner has is an SO239.

For your next tuner, watch Ebay and buy a Johnson Matchbox for under $100.
They will match most loads you are likely to encounter, and are designed for
Balanced line.

I presently use some home made 450 line on a 60 meter (90 foot end to end)
dipole, as that is what fits between my trees. I modified my Matchbox to
make it load all bands with the 90 foot dipole, but you can get the same
effect by changing feed line length if you have "problem bands".

Reg Edwards, program Dipole3 will let you calculate the difference in losses
between the 300 and the 450 line using the actual hieght and length of your
dipole.

http://www.btinternet.com/~g4fgq.regp/

KA9CAR