At the apartment when I had one up, I think the coil was about 8 inches,
somewhere between 6 and 8, I was told anywhere from 6 to 10 works and I
believe I split the difference.
----- Original Message -----
From: "Tom Behler" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, August 26, 2012 2:39 PM
Subject: Re: G5RV Update: Good News!
> John:
>
> The piece of coax from the ladder line is only about a foot and a half
> long.
> I certainly can do the ten turns of coax with the chunks of coax that I
> have, or the solid piece that I am considering purchasing. One question
> is
> what diameter the coil should be. I have heard 6 inches, but perhaps
> others
> have different recommendations.
>
> 73 from Tom Behler: KB8TYJ
>
> ----- Original Message -----
> From: "John Miller" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Sunday, August 26, 2012 12:21 PM
> Subject: Re: G5RV Update: Good News!
>
>
>> Do you have the usually recommended 10 turns where the coax meets the
>> twin
>> lead? That might help you tune the rest of 40. I really think all that
>> extra
>> coax if there is a lot will hurt, not help you but if you really think it
>> helps, 1 peace is always better than a few put together.
>> ----- Original Message -----
>> From: "Tom Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Sunday, August 26, 2012 11:20 AM
>> Subject: G5RV Update: Good News!
>>
>>
>>> Hi, all.
>>>
>>> Well, I have some good news on the RV G5RV front this morning.
>>>
>>> Yesterday, I did a bunch of checking on feed lines, etc., and since all
>>> looked ok from a continuity stand-point, I took the leap and put the
>>> G5RV
>>> up
>>> again. This time, it is in some trees, and pretty much in the clear
>>> from
>>> nearby RV's and other metal structures. The center is not that
>>> high--probably only about 20 feet, and the ends are probably about 20
>>> feet
>>> high as well. The ladder line comes down at about a 45-degree angle to
>>> the
>>> feed line connection point in a tree just to the back of my RV at about
>>> head
>>> level. The antenna orientation is northwest to southeast. I lashed
>>> together about 50 feet of coax jumpers that I had lying around to add to
>>> the
>>> 15 or 20 feet of coax that runs from the antenna connector on the back
>>> corner of the RV, to my operating position inside.
>>>
>>> I found that the antenna tunes, using the auto-tuner on the TS480, on
>>> 10,
>>> 15, 20, the upper half of 40, and the lower half of 80. At one point, I
>>> actually got it to tune on the lower end of 40, but after doing some
>>> other
>>> things, have not been able to replicate that condition.
>>>
>>> The antenna does seem to get out. I worked a bunch of stations for the
>>> Kansas QSO Party on 20, and probably jus as many for the Ohio QSO Party
>>> on
>>> 40. In fact, I worked one station right after Steve (KW3A) worked them.
>>> On
>>> 20 meters, I also worked into Europe both on SSB and CW. The signal
>>> reports
>>> I got were good, for the most part.
>>>
>>> So, now, I am in tweaking mode. Do you guys have any ideas for getting
>>> the
>>> antenna to tune on the lower part of 40 meters? I have seriously
>>> thought
>>> of
>>> purchasing a nice solid 50-foot chunk of RG8X coax, and putting that in
>>> the
>>> feed line system, in hopes that it might do better than the
>>> lashed-together
>>> arrangement that I currently have.
>>>
>>> One specific question I also have is this--where do I put the excess
>>> coax?
>>> Do I put it outside near the RV antenna connection, or inside the shack
>>> at
>>> the transmitter--or, doesn't it matter?
>>>
>>> I won't be out at the RV next week-end for Labor Day, because the XYL
>>> and
>>> I
>>> will be traveling to Missouri to visit our son and his family, but I
>>> will
>>> be
>>> out there the week-end after that, and hopefully, for the remaining
>>> week-endss in September before they close down the camp ground.
>>>
>>> Any thoughts or suggestions for improving the performance of this
>>> antenna
>>> would be appreciated.
>>>
>>> 73 from Tom Behler: KB8TYJ
>>
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