Hi, Eric:

You are correct except pow is lost at an SWR lower than 2 to 1.  At 1.5 to 
1, loss is 4 percent.  I also posted on this question.

73
Bob
KC3FI

EchoLink Node - 55127
Please visit http://www.wan-leatonks.net.
----- Original Message ----- 
From: "Eric Patterson" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, March 10, 2010 1:10 PM
Subject: Re: What is the highest safe swr?


> Rick and others:
>
> It was my understanding that it is best to have an SWR of 1 to 1.
> However, 1.5 or 2 to 1 is also acceptable.  It was also my understanding
> that if your SWR goes above 2 to 1, you could lose transmitter power or 
> have
> trouble tuning your antenna.  I do not use amplifiers, but I learned about
> SWR when I studied for my technician license back in 1993.  Others on this
> list can let me know if my understanding is correct.  Thanks.
>
> Eric
>
> -----Original Message-----
> From: For blind ham radio operators [mailto:[log in to unmask]]
> On Behalf Of Rick
> Sent: Wednesday, March 10, 2010 7:49 AM
> To: [log in to unmask]
> Subject: What is the highest safe swr?
>
> Hi list.
> What is the highest safe SWR?
> The reason I ask is, when on 20 meters for example, I tune my SWR to 1.0 =
> to 1, I get 700 watts out of my amp.
> When I have an SWR of 2.0 to 1 I get 1000 watts.
> I don't want to hurt anything, so I thought I'd ask here.
> Thanks in advance, 7 3.