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Re: [Amps] transformers

To: "Gary Schafer" <garyschafer@comcast.net>
Subject: Re: [Amps] transformers
From: "m.ford" <k1ern@pioneerwireless.net>
Date: Mon, 17 Jul 2006 22:51:47 -0400
List-post: <mailto:amps@contesting.com>
----- Original Message ----- 
From: "Gary Schafer" <garyschafer@comcast.net>
To: "'m.ford'" <k1ern@pioneerwireless.net>
Cc: <amps@contesting.com>
Sent: Monday, July 17, 2006 9:37 PM
Subject: RE: [Amps] transformers


> 
> 
>> -----Original Message-----
>> From: m.ford [mailto:k1ern@pioneerwireless.net]
>> Sent: Monday, July 17, 2006 12:47 PM
>> To: Gary Schafer
>> Cc: amps@contesting.com
>> Subject: Re: [Amps] transformers
>> 
>> 
>> ----- Original Message -----
>> From: "Gary Schafer" <garyschafer@comcast.net>
>> To: "'m.ford'" <k1ern@pioneerwireless.net>; "'Tom W8JI'" <w8ji@w8ji.com>
>> Cc: <amps@contesting.com>
>> Sent: Monday, July 17, 2006 11:16 AM
>> Subject: RE: [Amps] transformers
>> 
>> 
>> >
>> >
>> >> As for PEP. I always felt it was a  marketing term. Never bothered with
>> it
>> >> and from the lengthy discussion here I have learned nothing new.
>> >
>> > How else would you measure SSB power if not PEP?
>> >
>> > 73
>> > Gary  K4FMX
>> >
>> >
>> Hi Gary. Define the term "SSB power".
>> 
>> Mike k1ern
> 
> That's my question Mike.
> 
> Rephrased; how would you rate the power output of an SSB transmitter? What
> units would you express the output power in?
> 
> 73
> Gary  K4FMX
> 
>
Watts come to mind.

 I think what you are trying to ask is how would I measure
the total power emitted from a transmitter that is modulated by single sideband 
voice.
Two ways come to mind. First I would use a spectrum analyzer and crank up the
persistance then measure the area under the curve. The rest is math.  But now 
you have to assume a bandwidth.

The second way would be to actually calculate and sum the area under each 
envelope of each tone
produced and do it in real time.  Oh, and while we are splitting hairs, don't 
forget the carrier
suppression. A lot of ssb I hear, isn't.

As I recall, the  advent of PEP brought us cross needle peak reading power 
meters. 
I think an artificial horizon indicator would  yield more useable results.

Mike  k1ern


> 
> 
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