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

[David Bunte]

Wes -

Excellent points. One of the locals has very fine antennas, but really
appreciates the fact that his PW-1 can make the SWR look a 'bit' better. At
my QTH, and TUNER, is absolutely necessary... but that is because I have
only one antenna, and it is usable without a tuner on only one band. The
internal tuners in most rigs can't handle it... the tuner in my K3, or my
KAT500, are perfect on most bands. But a 30' vertical is a HUGE challenge
for ANY tuner on 160... and many can't handle it on 80.

Dave - K9FN

On Fri, 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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