if you have no antenna tuner, you're right, but if you have an external
tuner, it needs to be between the tuner and the amp so you can tune the
antenna though again, once tuned, sometimes it's fun to put it on the output
of the tuner just to see what's coming out of it, but I'd leave it between
the amp and tuner, which is where mine is.
----- Original Message -----
From: "Steve Dresser" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, October 20, 2009 5:13 PM
Subject: Re: Amplifiers and SWR.
> Rick,
>
> Actually, your TW-1 should go between the output of the amplifier and the
> antenna so you can see how much power your amp is putting out. When your
> amp isn't being used, the meter will measure the output power of the
> radio.
>
> Steve
>
> ----- Original Message -----
> From: "Rick" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, October 20, 2009 12:46
> Subject: Re: Amplifiers and SWR.
>
>
>> Hi John.
>> The TW-1 is between the amp and the tuner.
>> The radio is A Kenwood TS-430S, and the amp is A Heathkit SB-220.
>> I have the original manual to the amp, and according to the notes the guy
>> that built it, the amp was put on the air on May 5th 1976.
>> I have a Kenwood AT-250 auto tuner I can put between the radio and amp if
>> you think that would help.\Thanks again for your help, and 7 3.
>> ----- Original Message -----
>> From: "John Miller" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Tuesday, October 20, 2009 12:32 PM
>> Subject: Re: Amplifiers and SWR.
>>
>>
>>> The amp should have no effect on swr, where is your TW1 in line? I'm
>>> wondering if something's off inside the amp and maybe the input
>>> impedance
>>> is
>>> off, if the radio has an auto tuner, you can use that for a quick fix
>>> for
>>> that, but will want to fix it right eventually. I've heard of that
>>> happening
>>> with older amps.
>>> ----- Original Message -----
>>> From: "Rick" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Tuesday, October 20, 2009 12:24 PM
>>> Subject: Amplifiers and SWR.
>>>
>>>
>>>> Hi list.
>>>> Using my TW-1 and MFJ versa tuner, I set my SWR as low as I can get it.
>>>> Say 1.01 to 1 on 20 meters. Then I tune the amp.
>>>> After tuning the amp I check my SWR again, and it's up to say 2.4 to 1.
>>>> Is this normal, and should I readjust the SWR again with the amp on?
>>>> Thanks in advance, and 7 3.
>>
|
