Amps
[Top] [All Lists]

Re: [Amps] High SWR

To: "KB0NLY" <kb0nly@mchsi.com>, <amps@contesting.com>
Subject: Re: [Amps] High SWR
From: "Carl" <km1h@jeremy.mv.com>
Date: Wed, 22 Apr 2009 20:30:41 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Buy an ARRL Antenna Manual

Carl
KM1H


----- Original Message ----- 
From: "KB0NLY" <kb0nly@mchsi.com>
To: <amps@contesting.com>
Sent: Wednesday, April 22, 2009 8:04 PM
Subject: Re: [Amps] High SWR


> Very good point, thanks for mentioning that I never thought about the
> voltage rating of the feedline at the higher SWR.  Can specs be found 
> for
> the various types of coax showing their max voltage?  A chart would be 
> nice.
>
> 73,
>
> Scott
>
>
> ----- Original Message ----- 
> From: "Bill, W6WRT" <dezrat1242@yahoo.com>
> To: <amps@contesting.com>
> Sent: Wednesday, April 22, 2009 6:53 PM
> Subject: Re: [Amps] High SWR
>
>
>> ORIGINAL MESSAGE:
>>
>> On Wed, 22 Apr 2009 17:39:22 -0400, Pete Smith <n4zr@contesting.com>
>> wrote:
>>
>>>, but SWR, per se, is not
>>>something to worry yourself about, so long as the amplifier can match 
>>>the
>>>load.
>>
>> REPLY:
>>
>> I agree up to a point. The main villain with SWR, IMO, isn't loss, it
>> is the excess voltage present on the line. Most coax, even the RG-213
>> size, is rated for only 600 volts. If you have a 2:1 SWR at 1500 
>> watts
>> you are living on the edge already. Go to 3:1 and you have crossed 
>> the
>> line.
>>
>> I won't say it can't be done, but a wise op won't.
>>
>> 73, Bill W6WRT
>> _______________________________________________
>> Amps mailing list
>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>
>
> --------------------------------------------------------------------------------
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.0.238 / Virus Database: 270.12.2/2074 - Release Date: 
> 04/22/09
> 08:49:00
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps 

_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

<Prev in Thread] Current Thread [Next in Thread>