[Amps] SB-1000 tuning question

[KB0NLY]

5:1?  Why even bother running an amp if your SWR is that high.  That's a lot 
of reflected power back into the shack and on your feedline.

I know a guy that runs an amp with a huge antenna mismatch and guys that 
hear me at 100w with a properly tuned antenna can't hear him for crap.  He 
isn't making efficient use of his power.  Run all the power you want, but 
there is no substitute for a good antenna to connect to it.

Scott


----- Original Message ----- 
From: "Carl" <km1h at jeremy.mv.com>
To: "Robert Morris" <robrk at nidhog.net>
Cc: <amps at contesting.com>
Sent: Wednesday, April 22, 2009 1:45 PM
Subject: Re: [Amps] SB-1000 tuning question


> Is that tuned into a dummy load or an antenna of unknown impedance? If
> the latter then its simple to juggle fixed padder values.
>
> Im one who pays little attention to low band VSWR under about 5:1 with
> dipoles in particular and adapt the amps to the antennas.
>
> Carl
> KM1H
>
>
>
> ----- Original Message ----- 
> From: "Robert Morris" <robrk at nidhog.net>
> Cc: <amps at contesting.com>
> Sent: Wednesday, April 22, 2009 1:36 PM
> Subject: Re: [Amps] SB-1000 tuning question
>
>
>>
>>> ----- Original Message ----- 
>>> From: "Van K7VS" <wa7fab at cdsnet.net>
>>> To: <amps at contesting.com>
>>> Sent: Wednesday, April 22, 2009 11:42 AM
>>> Subject: [Amps] SB-1000 tuning question
>>>
>>>
>>>> Can anyone tell me why the SB-1000 does not follow the 80 meter band
>>>> tuning
>>>> range?  Only band it is significantly off on.  When resonance
>>>> achieved on
>>>> the 80/75 meter band the tuning knob is way off to the right of
>>>> where the
>>>> band range is marked off.  I have tried several 3-500Z's and they
>>>> all tune
>>>> up in the same area.  Other bands seem to be ok.  Van, K7VS
>>
>> A very quick look at an AL80b schematic shows some padding caps being
>> switched
>> by the band switch. Can't take the time to trace, right now.
>> Did you blow a cap or band switch?
>>
>> -- 
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