[Elecraft] [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply

[Jim Miller]

Wes

Can you describe your affected antennas?

73

Jim ab3cv

On Apr 21, 2017, at 8:56 AM, Wes Stewart <wes_n7ws at triconet.org> wrote:

A couple of points.

If you believe that an SWR of >3 necessarily degrades the efficiency of an antenna, you are simply wrong.

If the "tuner" components have to be derated to this extent then perhaps it should be called a line flattener rather than a tuner because a lot of guys are still going to need a tuner.



> On 4/21/2017 4:34 AM, john at kk9a.com wrote:
> The KPA1500 tuner range is fine. If your antennas have >3:1 SWR you need
> to do some work outside. It will help your signal much more than the amp.
> Even when I operated the RTTY Roundup in January after an ice storm my
> antennas were within this amplifiers SWR range.
> 
> John KK9A
> 
> from: Wes Stewartn7ws
> Fri Apr 21 01:18:59 EDT 2017
> ]
> Not enough full power tuner range.
> 

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