On Sun, Sep 15, 2024 at 10:15 AM, Sandy wrote:
Very simple. 1:1 is the max safe SWR. I use a 4 state tuner to get nearly there and then fine tune while broadcasting until the SWR indicator on the QMX reads a perfect 1:1.
I use the same tuner and have an MFJ.? I suspect I may have some issues with both that I have not yet had the time to look into further.? I also have a Rigexperts antenna analyzer, but I can't always get all the way to a 1:1.? My 4SQRP seems to make my SWR on 20M worse.? I think I can get it less that 2:1, but I finally put the analyzer on my antenna clean (no tuner) and am about 1.2:1 so I figure that is okay.
?
As I have said several times, I know 1:1 is best.? My QDX and my QMX+ (when built) are both for 9V for what that may matter.? And I can check my SWR several ways, but just wanted to know how far off of 1:1 was redlining.? So far the only answer I got was 1.5:1 should be okay.? Would like to know if 2:1 is okay (knowing that it is NOT optimal).? Just want to avoid having to replace finals... but may have to just play till I blow a set.
?
Bob
KG5GTE
