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Old August 22nd 08, 08:04 PM posted to rec.radio.amateur.equipment
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Default G5RV

I made a balun for this antenna according to the manufactures
instructions and I still have high swr. HELP. I do get good signal
reports though. The ladder line is only verticle for almost 12ft and
then drapes off the roof. Best way it could be installed right now.
Using a kenwood ts440s with auto tuner. No luck on ten meter yet!!!
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Old August 24th 08, 08:25 AM posted to rec.radio.amateur.equipment
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Default G5RV

On Aug 23, 10:57 am, "Ralph Mowery"
wrote:
"Dick" wrote in message

...



On Fri, 22 Aug 2008 11:04:46 -0700 (PDT), wrote:


I made a balun for this antenna according to the manufactures
instructions and I still have high swr. HELP. I do get good signal
reports though. The ladder line is only verticle for almost 12ft and
then drapes off the roof. Best way it could be installed right now.
Using a kenwood ts440s with auto tuner. No luck on ten meter yet!!!


I have found that only a couple of bands can be tuned with the
built-in tuner. For the rest you will need an external tuner that can
handle SWR's greater than 3:1.


With the current sunspot cycle, you would be lucky to make a ten-meter
contact (other than locals) with a 6-element beam, let alone a G5RV.


Dick - W6CCD


I don't think much of the G5RV, but that is a personal opinion without ever
having one up. I do use an OCF antenna with all its problems. Mainly for
80 and 40 meters.

Ten meters has been opening up some and I have made a few contacts on it. I
am not much of a 10 meter operator. I do have a triband beam up and it is
much beter than the OCF for the bands it is cut for , but I have heard many
10 meter stations and beacons over the last month. I have even made a few 6
meter contacts out of the local area.


I did make a contact from N Ohio to Idaho with reptty good results
running around 35W on 40 meter the other night. Thanks for the input
though!!!
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Old August 26th 08, 05:51 AM posted to rec.radio.amateur.equipment
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Default G5RV

On Aug 25, 10:20 pm, Mike Coslo wrote:
wrote :

I did make a contact from N Ohio to Idaho with reptty good results
running around 35W on 40 meter the other night. Thanks for the input
though!!!


Did you get your problem solved? A few questions here. Where is the balun
located, and what type is it?

Internal tuners tend to correct up to only 3:1 or so. There is a good
chance that you will still need an outboard tuner. Something like a MFJ 949
would probably do the. If you do use that, you can probably take the balun
of the radio end, (if that is where it is at) and run the ladder line
directly to the tuner.

- 73 de Mike N3LI -


The balun is at the feedpoint. It is constructed as per mauf specs.
4" pvc with ten turns of the coax around it, secured with zip ties.
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Old September 6th 08, 05:15 PM posted to rec.radio.amateur.equipment
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Default G5RV

On Aug 26, 9:53 am, Dick wrote:
On Mon, 25 Aug 2008 20:51:28 -0700 (PDT), wrote:
On Aug 25, 10:20 pm, Mike Coslo wrote:
wrote :


I did make a contact from N Ohio to Idaho with reptty good results
running around 35W on 40 meter the other night. Thanks for the input
though!!!


Did you get your problem solved? A few questions here. Where is the balun
located, and what type is it?


Internal tuners tend to correct up to only 3:1 or so. There is a good
chance that you will still need an outboard tuner. Something like a MFJ 949
would probably do the. If you do use that, you can probably take the balun
of the radio end, (if that is where it is at) and run the ladder line
directly to the tuner.


- 73 de Mike N3LI -


The balun is at the feedpoint. It is constructed as per mauf specs.
4" pvc with ten turns of the coax around it, secured with zip ties.


Here is a good article regarding feeding the G5RV. You will note in
it that Louis Varney (G5RV) in his later writings, did not recommend
the use of a balun. I have used the G5RV for many years without a
balun with fairly good success. Here is the article -http://www.vk1od.net/G5RV/index.htm

Dick - W6CCD
** Posted fromhttp://www.teranews.com**


Correct about "NO Balun" on Lou Varney's design but the writer is
using a coaxial choke, nothing more.
A G5RV antenna has varing success because of installation conditions &
was only designed as a 20 meter antenna.
If you're lucky, it will work on various bands but the feedline should
come away as close to 90 degrees from the antenna feedpoint & AWAY
FROM ALL METAL OBJECTS like gutters, fences, etc!

I decided against a G5RV because of room & height.
I made up a 66' dipole, fed at center with 450 window/ladder line.
That line comes up to & under the eave of the house to a homebrew 4:1
balun which I found on the WWW. I feed that with RG-8 to a NYE tuner
for all bands including 80 meters.
The tuner is quite resetable & easily adjusted, I am very pleased with
it & its only 20' high:-)
GL.......
Rich
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