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Subject:
Re: Looking for a blind friendly antenna tuner?
From:
Howard Traxler <[log in to unmask]>
Reply To:
Howard Traxler <[log in to unmask]>
Date:
Tue, 30 Nov 2010 06:31:01 -0600
Content-Type:
text/plain
Parts/Attachments:
text/plain (61 lines) 
Depending upon the input to the amp, it may still be best to use the 
internal tuner.  As I remember, amps without a tuned input (such as grounded 
grid, input to the cathode, et al) present a rather high SWR to the exciter. 
Hence, the transceiver's internal tuner effectively replaces the tuned input 
to the amp.

The Other Howard, WA9RYF
----- Original Message ----- 
From: "Steve Dresser" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, November 29, 2010 9:48 PM
Subject: Re: Looking for a blind friendly antenna tuner?


> Tom,
>
> The internal tuner would indeed be vaporized if it were actually connected
> to the amplifier's output, but it is not.  Actually, the problem with 
> trying
> to use the internal tuner while running the amplifier is that you would be
> trying to match the output of the radio to the input of the amplifier 
> rather
> than matching it to the antenna.  Even if you were using a linear that 
> only
> generated 100 watts, you'd have to bypass the internal tuner because your
> antenna is no longer directly connected to the radio while the linear is 
> in
> use.
>
> Steve
>
> ----- Original Message ----- 
> From: "tom behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, November 29, 2010 21:16
> Subject: Re: Looking for a blind friendly antenna tuner?
>
>
>>    With all due respect, I agree with what Howard is saying here.
>>
>> I have found the auto-tuner in the TS480 to be very forgiving.
>>
>> I do use a manual tuner as well, but only when using my Ameritron Al811H
>> amplifier, since the auto-tuner in the TS480 would probably be vaporized
>> with the higher power level.
>>
>> 73 from Tom Behler:  KB8TYJ
>>
>> ----- Original Message ----- 
>> From: "Howard Kaufman" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Monday, November 29, 2010 9:14 PM
>> Subject: Re: Looking for a blind friendly antenna tuner?
>>
>>
>> What does a signal to noise ratio have to do with a tuner?
>> The tuner in the 480 will tune anything under 8-1.  They have no idea 
>> what
>> they are talking about!
>>

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