I only use my amp on one band for the most part so I tuned it once, and just
double check it once a month and it's good.
----- Original Message -----
From: "Rick" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, October 21, 2009 8:28 AM
Subject: Re: Amplifiers and SWR.
> That's why I don't use the amp much, and when I do, I find a clear
> frequency
> to tune up.
>
> ----- Original Message -----
> From: "Steve Forst" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, October 20, 2009 6:10 PM
> Subject: Re: Amplifiers and SWR.
>
>
>> Hi Rick,
>>
>> I would really recommend that you pick up a dummy load that can handle
>> the
>> power from the amp. Tuning up on the air only pisses people off and
>> just
>> makes QRM for others. It can also be helpful in trying to sort out
>> station problems like swr, rfi, and other stuff.
>>
>> I kind of thought it was you that had fluctuating swr on the vertical a
>> few
>> weeks ago. If you took some things out of line and then put them back
>> in
>> line and all seems good now, maybe you can isolate the problem to the
>> things
>> you were messing with. Maybe a loose connection on something that got
>> tightened properly the second time around, or maybe a bad
>> connector
>> or jumper that just happens to be in a good spot right now.
>>
>> Good luck, hope to work you sometime, Steve KW3A
>>
>>
>> ----- Original Message -----
>> From: "Rick" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Tuesday, October 20, 2009 3:21 PM
>> Subject: Re: Amplifiers and SWR.
>>
>>
>>> Hi steve.
>>> Unfortunately I don't have a dummy load yet, so I don't use the amp
>>> much.
>>> Yes the same thing happens on all bands.
>>> Correct again on the antenna problem. smiles
>>> I haven't done anything to the antenna yet, but I'm beginning to think
>>> it's
>>> a jumper coax problem.
>>> I took the manual tuner and amp out of line, and hooked the automatic
>>> tuner
>>> back up.
>>> I ran the auto tuner a week or two, and no problem
>>> Yesterday I removed the auto tuner, and hooked the amp and manual tuner
>>> back
>>> up.
>>> So far, so good.
>>> I plan to change all the jumper coaxes as soon as I get new ones.
>>> ----- Original Message -----
>>> From: "Steve Forst" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Tuesday, October 20, 2009 1:00 PM
>>> Subject: Re: Amplifiers and SWR.
>>>
>>>
>>>> Rick,
>>>>
>>>> This isn't normal. I often see the opposite: Maybe a 1.4 swr on a
>>>> band
>>>> at
>>>> low power and see it drop a few points at high power. Does it happen
>>>> on
>>>> all bands? Same result into a dummy load? Did it just start doing
>>>> this?
>>>>
>>>> I may have you confused with someone else, but didn't you have a
>>>> problem
>>>> with intermittent high swr on a vertical antenna not too long ago? If
>>>> it
>>>> was you, what was the final result and is it the same antenna you have
>>>> problems with now?
>>>>
>>>> Easy thing to do right off is to check all connections in the shack:
>>>> rig,
>>>> meter, tuner, amp, switches, etc.
>>>> 73, Steve KW3A
>>>> ----- 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.
>>>>>
>>>
|
