[Elecraft] [Elecraft_K3] New from Elecraft: KPA1500 amplifier with built-in ATU, separate power supply
Clay Autery
cautery at montac.com
Fri Apr 21 13:13:37 EDT 2017
Ease up for a minute.... Look at it my way. I KNOW I am gonna need an
external tuner with massive capability to do the same thing I am doing
now.... only one tuner on the commercial market will tune my 80m loop
at 1500W the way the K3s can.
I didn't WANT an onboard tuner... I consider the price point fair for
an amp only. It would cost me roughly that much to build one from a
true kit, boards, or schematic... (Looking forward to it).
Tuning full range, full-power, from 160-6m, from more than 3:1 gets
expensive, big, and heavy in a hurry....
MOST folks don't need/want a tuner like that, especially if it takes
more money out their pocket.
Consider the on-board tuner a bonus extra... and if so inclined send up
a prayer the FCC approval is rapidly forthcoming. :-)
73,
______________________
Clay Autery, KY5G
On 4/21/2017 7:56 AM, Wes Stewart 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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