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.