John,

Of course there are  dipoles  that are multi-band resonant such as Alpha 
delta, Hy Power, etc.  And the bands not  resonant can be tuned  with the 
tuner  with results no worse than your G5RV.  Of course this is where you 
learn the shortcomings of your internal tuner.

BTW Good luck with the new rig.  had mine over 6 years  and I've been very 
happy with it.

73, Steve KW3A
----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, December 27, 2007 10:51 PM
Subject: Re: more G5RV stuff


>I prefer them too but unfortunately can't put them up here though where I'm
> daily checking in to a couple nets on 40 meters, I very well may stick up 
> a
> 40 meter dipole. It won't be all that high because of nothing to tie it 
> off
> to, but I think if I run it along 1 path I'm looking at, I should be in
> great shape.
> ----- Original Message ----- 
> From: "Steve Forst" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, December 27, 2007 10:05 PM
> Subject: Re: more G5RV stuff
>
>
>> Tom,
>>
>> First, good news on the  power supply.  Sounds like no problem.
>> I think your G5RV sounds typical.   Following is a link  to a site with
>> some
>> computer modeling of the G5RV.  If I'm following this correctly, the 
>> first
>> batch of numbers shows swr's for all bands for a 102 ft. long dipole fed
>> with coax, or 300 ohm  twin lead, or 450 ohm ladder line.   Some of the
>> numbers are pretty high as you would expect.
>>
>> Then comes a batch of numbers showing  that same  dipole fed with coax,
>> but
>> with a 300 ohm section (typical G5rv).   You can see how the numbers
>> change,
>> and the examples you gave seem to  be in this ballpark.
>>
>> The G5RV is what it is, and while I used one  in the '80's, I  prefer 
>> coax
>> fed resonant  dipoles.  To each his own.
>>
>> Here is the link:
>>
>> http://www.qsl.net/k2hq/g5rv.htm
>>
>>
>> 73, Steve KW3A
>>
>> ----- Original Message ----- 
>> From: "T Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, December 27, 2007 9:09 PM
>> Subject: more G5RV stuff
>>
>>
>>> Hi, all.
>>>
>>> Can someone tell me what an acceptable SWR picture would be for a
>>> 102-foot
>>> G5RV antenna?
>>>
>>> I re-oriented my G5RV antenna today, by making the ladder-line run 
>>> pretty
>>> much vertically from the antenna feed-point at the top of my 35-foot
>>> tower,
>>> to the coax that then goes into my shack from the base of the tower.  I
>>> checked the connections between the ladder-line and the coax feedline,
>>> and
>>> they still seem to be good.
>>>
>>> My SWR's are a bit better, and the auto-tuners on both my IC746 and
>>> Kenwood
>>> TS480 now tune the antenna on 40 meters (which I couldn't say before),
>>> but
>>> the SWR's still seem quite high to me.
>>>
>>> On 40 meters, I get an SWR anywhere from about 5 to 1 down to about 4 to
>>> 1.
>>>
>>> The antenna has its best SWR readings on 20 meters, which you'd expect,
>>> but
>>> even here, I can't get the SWR to go much below about 1.8 to 1 in the
>>> center
>>> of the band.
>>>
>>> Again, at least now, the auto-tuners in both of my HF rigs will tune the
>>> antenna, but I'm wondering whether it's even safe or wise to use the
>>> antenna
>>> under these conditions.
>>>
>>> 73 from Tom Behler:  KB8TYJ
>>>
>>>
>>>
>>
>
>
>