Nah, I read it wrong.
Bob, K4TAX
Sent from my iPhone
> On Nov 2, 2017, at 1:25 PM, Gordon LaPoint <gordon.lapo...@gmail.com> wrote:
>
> I must be missing something here. I don't see where the original poster had
> anything to do with a tuner between the K3 and the KPA1500. He wanted to
> hook his P3 TX monitor input to the output of the KPA1500 amp, before the amp
> tuner. Or maybe I misunderstood the original post.
> Gordon - N1MGO
>
>> On 11/02/2017 02:20 PM, Bob McGraw K4TAX wrote:
>> Most authorities I read and follow strongly suggest one NOT use a tuner
>> between the radio and the amp.
>>
>> This "old wives tail" goes back to the time many to most early tube type
>> grounded grid amps did not have a tuned input. Seems that hams today choose
>> to believe and practice old and outdated methodology {largely because
>> someone said so} as opposed to learning and using current and correct
>> methods.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>>
>>> On 11/2/2017 1:14 PM, RIchard Williams via Elecraft wrote:
>>> James,
>>> Am not sure why you need a tuner between the radio and the amp in the first
>>> place?? As of now, I have my K3S or K3 driving a Alpha 9500. I never have
>>> used the tuner in either when driving the amp? I assume the KPA9500 will
>>> have a 52 ohm input, and you would not need a tuner.
>>> Dick, K8ZTT
>>>
>>> From: James Wilson <w4rk...@gmail.com>
>>> To: Elecraft <elecraft@mailman.qth.net>
>>> Sent: Thursday, November 2, 2017 11:54 AM
>>> Subject: [Elecraft] KPA1500 with P3 Transmit Monitor
>>> Looking at a draft of the KPA1500 amplifier, it appears
>>> that the only place to install a TxMon or Wattmeter coupler
>>> is at the - output - of the built-in tuner.
>>>
>>> At that point, it will always show the SWR of the
>>> coax feedline, not the SWR that the amplifier "sees" as
>>> adjusted by the built-in tuner.
>>>
>>> Or, is there a coupler built-in inside the KPA1500 ?
>>>
>>> What am I missing?
>>>
>>> Jim - W4RKS
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>>
>>
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>
> --
> Gordon - N1MGO
>
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