[BC] power output formula

[Robert Meuser]

The biggest difference between the MW 50, MW 10 and MW 5 is really the 
size of the components. In all three units the PA floats and is in 
series with the modulator switching tube. The biggest difference is that 
in the MW 50 the RF section which includes both the PA and the driver 
ends up being in a large floating box that consumes one full cabinet. In 
the MW 10 and 5 the PA is in the same cabinet as the modulator it is 
simply in an insulated socket with blocking capacitors on both the input 
and the output. This greatly reduces the size of the overall unit. MW1 
was a solid state TX with totally different technology.

R



boydsirboyd at aol.com wrote:

> thanks for the answer and the formula, i was the one having a time with a MW50 harris transmitter here in south carolina. but it's up and running just fine. now to fix the kintronics switching unit.
> one other thing, since i got this one up and running so good, what are the main differences between the MW50,,,MW10,, MW5,, and the MW1 harris rigs? except the output power. i know the cabinets of the MW10 and the MW5 are half the size of this baby, but the MW1 is one cabinet correct?
> 
> bill
>    
> -----Original Message-----
> From: dhultsman5 at aol.com
> To: broadcast at radiolists.net
> Sent: Thu, 22 Feb 2007 7:10 PM
> Subject: Re: [BC] power output formula
> 
>  P=I squared R,   Where P= Power,  I =  Common Point Current in Amps,   R=  RF 
>resistance with zero reactance at frequency. 
>Also rember you have a loss factor for DA Common Points.  The method of 
>calculating this has been changed so you need to check the R & R.  for 1-5 kW.  
>and 10-thru 50 kW.
>
> 
>Dave Hultsman
>Continental Electronics .
>Birmingham, AL
>Tel Toll Free (888) 822-1078
>Fax (205) 822-6441
> 
> 
>-----Original Message-----
>From: boydsirboyd at aol.com
>To: broadcast at radiolists.net
>Sent: Thu, 22 Feb 2007 6:00 PM
>Subject: [BC] power output formula
>
>
>  ok i need the basic formula to do a power output conformation.
> 
> common point meter is 32 amps and the load is 50 ohms to the phaser cabinet.
> 
> bill 
>  
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