Yep, you are right, I always use the rigs tuner with the amp, turn the
amp on and hit tune on the radio. I don't have an external tuner, so
that would change things, as we discussed a while back. The first amp I
ran was grounded grid and no tuned input. The heath kit sb 200 and
yaesu 2100 did have tuned inputs on each band.
73
Butch Bussen
wa0vjr
open Node 3148
Las Vegas
On Tue, 30 Nov 2010, Howard
Traxler wrote:
> 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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