[Elecraft] [OT] High SWR on 20 and 40

[Brian Alsop]

Of course two tuners doubles the tuner losses.  Tuner losses amount to 
10 to 15% per tuner, sometimes higher.  If you're not folding back power 
after the first tuner does its match and it's under about 1.8, don't 
bother.  There is nothing real to be gained.

If you need both tuners, the real need is for a better matched antenna 
or a single tuner with a wider matching range.

73 de Brian/K3KO


Don Wilhelm wrote:
> Dave and all,
> 
> Are you aware that you can use both tuners "in tandem"?  You can set the 
> manual tuner quickly for a close match and then let the internal tuner 
> refine the match.
> 
> For instance, you have an antenna that is difficult to match, but you 
> already have a list of setting for a close match (less than 3:1) on the 
> manual tuner for that antenna - just turn to those settings and then let 
> the KX1, K1, K2, K3 tuner clean up for a very ow SWR.
> 
> 73,
> Don W3FPR
> 
>> The bottom line for me is that the KX1 ATU is useful, but not very wide 
>> ranging.  It may work better on some other types of antennas.  I'm glad I 
>> have it, but some situations probably require an outboard unit that is more 
>> versatile.  Since I use balanced feedline type antennas a lot when I am 
>> portable, I usually have an outboard tuner for that reason.  I really like 
>> "Z" match tuners for QRP use.  The NorCal BLT is a good one too.
>>
>> Dave W7AQK
>>   
>>
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