[Boatanchors] Using a SG-230 tuner on AM

Carl km1h at jeremy.mv.com
Wed Aug 12 18:21:54 EDT 2009


Who the hell is talking about running an amp into the SGC??

Get back on track please.

All I want is to use it without blowing up and that means the AF-67 which 
runs around 45-50W out in Class C AM which places it at 180-200W PEP. It 
wont be the same as the 2x 250TH or 4 x 813 plated modulated amps and big 
antennas but at least I can talk to the locals.

Carl
KM1H


----- Original Message ----- 
From: "rbethman" <rbethman at comcast.net>
To: "Carl" <km1h at jeremy.mv.com>
Cc: <boatanchors at mailman.qth.net>; "Gary Schafer" <garyschafer at comcast.net>; 
"'D C *Mac* Macdonald'" <k2gkk at hotmail.com>
Sent: Wednesday, August 12, 2009 5:10 PM
Subject: Re: [Boatanchors] Using a SG-230 tuner on AM


> Carl, Even at 80W CCS, it won't take the carrier that I get running the 
> DX-60 through the LK-500ZB resting carrier of 300Watts or better.  You 
> WILL fry the SG-230 using an amp after the DX-60 and before the SG-230 if 
> that's what it handles.
>
> Bob - N0DGN
>
> Carl wrote:
>> For starters the CCS rating is 80W dead carrier.
>>
>> Carl
>>
>>
>> ----- Original Message ----- From: "rbethman" <rbethman at comcast.net>
>> To: "Carl" <km1h at jeremy.mv.com>
>> Cc: <boatanchors at mailman.qth.net>; "Gary Schafer" 
>> <garyschafer at comcast.net>; "'D C *Mac* Macdonald'" <k2gkk at hotmail.com>
>> Sent: Wednesday, August 12, 2009 4:45 PM
>> Subject: Re: [Boatanchors] Using a SG-230 tuner on AM
>>
>>
>>> Carl,
>>>
>>> The DX-60 itself WILL run through the SG-230 perfectly well.  The 230 
>>> can handle 40W continuous duty.  If you amplify it - THEN it is too much 
>>> for the tuner once again.  As a normal GG amp like 2 500Zs will be a 
>>> resting carrier above what the SG-230 will deal with.
>>>
>>> The screen modulated, especially the DX-60 with its single 6146, is NOT 
>>> a 6dB increase in output.  I've never dealt with an AF-67 so have NO 
>>> comment there!
>>>
>>> Won't talk what I do NOT know!
>>>
>>> Okay?
>>>
>>> Bob - N0DGN
>>>
> <SNIP> 



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