BLIND-HAMS Archives

For blind ham radio operators

BLIND-HAMS@LISTSERV.ICORS.ORG

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
T Behler <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Thu, 27 Dec 2007 22:56:05 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (97 lines)
    Thanks, John.  Maybe I'm just worrying too much here, but I just don't 
want to risk doing any damage to my new TS480.

The characteristics of the G5RV are something I'm still learning about, but 
the antenna modeling charts that Lou sent me helped considerably.

73 from Tom Behler:  KB8TYJ

----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, December 27, 2007 10:47 PM
Subject: Re: more G5RV stuff


> You got it, as long as the tuner in the radio will tune it you're good.
> ----- Original Message ----- 
> From: "T Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, December 27, 2007 10:05 PM
> Subject: Re: more G5RV stuff
>
>
>>    So, John, you're saying that I should feel safe in using the antenna,
>> so
>> long as I tune it with the rig's auto-tuner?
>>
>> What do the others think?
>>
>> I know the G5RV is a compromise antenna at best, so maybe the
>> high-sounding
>> SWR readings aren't a problem, as long at the auto-tuner can still make
>> the
>> radio happy. Am I correct here?
>>
>> 73 from Tom Behler:  KB8TYJ
>>
>> ----- Original Message ----- 
>> From: "John Miller" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, December 27, 2007 9:45 PM
>> Subject: Re: more G5RV stuff
>>
>>
>>> Mine isn't much better, I'd say that's pretty typical.
>>> ----- 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
>>>>
>>>
>>>
>>
>
> 

ATOM RSS1 RSS2