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Subject:
From:
John Miller <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Wed, 14 May 2008 19:58:05 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (136 lines)
No good, you need a counter poise for that antenna, you'll need to add a 
radial or a few.
----- Original Message ----- 
From: "Mark" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, May 14, 2008 6:59 PM
Subject: Re: Coax Brade Breaks


> Hi John,
>     the antenna is grounded to earth. So, I am thinking this may help some
> what. I would like to put a resonate ground radial on the antenna too.
>
> God bless,
> Mark
> ----- Original Message ----- 
> From: "John Miller" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, May 14, 2008 2:16 PM
> Subject: Re: Coax Brade Breaks
>
>
>> Are you running just 1, or are they in a dipole configuration? If just
>> one,
>> that's why, they need a ground plain of some sore, be it the dipole
>> adapter
>> so you have 2 of them in the form of a dipole, or  how ever you'd like to
>> do
>> it, radials, if you have nothing on that shield side of the antenna,
>> that's
>> why it works that way and with out that shield connected, you're probably
>> causing RFI all over the place. You need to run that either on a tripod,
>> the
>> dipole adapter, there has to be something on the shield side of the coax,
>> and if you're just going to 1 of that antenna, it's only using the center
>> conductor. From what you describe, I'd say that explains why the swr is
>> that
>> way, with out that shield, you're very likely causing a ton of RFI to
>> TV's,
>> phones, what ever.
>> ----- Original Message ----- 
>> From: "Mark" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Wednesday, May 14, 2008 4:12 PM
>> Subject: Re: Coax Brade Breaks
>>
>>
>>> Hi John,
>>>     I am running a mobile whip similar to a ham stick. except the SWR's
>>> are
>>> about half of what I could get on the ham stick. They are even better 
>>> now
>>> that I put a break in the coax braid.  O I should mention that I am 
>>> using
>>> a
>>> 75 meter whip.
>>>
>>> God bless,
>>> Mark
>>> ----- Original Message ----- 
>>> From: "John Miller" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Wednesday, May 14, 2008 12:17 PM
>>> Subject: Re: Coax Brade Breaks
>>>
>>>
>>>> What kind of antenna?
>>>> ----- Original Message ----- 
>>>> From: "Mark" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Wednesday, May 14, 2008 2:42 PM
>>>> Subject: Re: Coax Brade Breaks
>>>>
>>>>
>>>>> Hi
>>>>>     Well, I am not sure of the efficiency factor but the power level 
>>>>> on
>>>>> the
>>>>> watt meter jumped and the SWR dropped. So, I wonder if I concentrated
>>>>> on
>>>>> building an efficient ground system for the antenna, if this is a work
>>>>> able
>>>>> system for the long term?
>>>>>
>>>>> God bless,
>>>>> Mark
>>>>> ----- Original Message ----- 
>>>>> From: "John Miller" <[log in to unmask]>
>>>>> To: <[log in to unmask]>
>>>>> Sent: Tuesday, May 13, 2008 6:51 PM
>>>>> Subject: Re: Coax Brade Breaks
>>>>>
>>>>>
>>>>>> probably either A, the soldering job wasn't all that good, the
>>>>>> connection
>>>>>> at
>>>>>> the antenna is broke, or it finds your ground a better substitute for
>>>>>> the
>>>>>> shield side of the antenna.
>>>>>> ----- Original Message ----- 
>>>>>> From: "Mark" <[log in to unmask]>
>>>>>> To: <[log in to unmask]>
>>>>>> Sent: Tuesday, May 13, 2008 8:18 PM
>>>>>> Subject: Coax Brade Breaks
>>>>>>
>>>>>>
>>>>>>> Hi
>>>>>>>     Some where years ago I heard about bead breaks in the ground
>>>>>>> braid
>>>>>>> =
>>>>>>> of coax. It had some thing to do with reducing RFI.=20
>>>>>>>     Jumping to the present, I was getting a 3 to 1 SWR on my HF =
>>>>>>> antenna. So, just for kicks I attached only the center conductor of
>>>>>>> the
>>>>>>> =
>>>>>>> coax to the center pin of a PL259. I made sure the coax braid did 
>>>>>>> not
>>>>>>> =
>>>>>>> touch the shield of the PL259. I ran a SWR check and found my SWR 
>>>>>>> was
>>>>>>> =
>>>>>>> now at 1.7 to 1. My question is what happened? Why did this appear 
>>>>>>> to
>>>>>>> =
>>>>>>> have such a wonderful affect on my antenna system?
>>>>>>>
>>>>>>> God bless,
>>>>>>> Mark
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
> 

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