On Thu, 20 Nov 1997 07:17:51 +0000 w8jitom@postoffice.worldnet.att.net
writes:
>> From: Peter Chadwick <Peter.Chadwick@gpsemi.com>
>
>> Isn't the Bird slug the same? There's mutual inductance between the
>> centre of the coax line and the slug, and similarly there's
>capacitance
>> between the line and the slug.
>
>Exactly the same. I can't think of how to make one that isn't the
>same.
>
>The all respond to the SUM of line voltage and current. Within the
>published accuracy of the meter (+ or - 5% of FS anywhere on the
>scale), all you need do is subtract reflected from forward power to
>establish the true power.
>73, Tom W8JI
Tom or others:
Has anyone converted a 50 Ohm Bird slug to 75 Ohm use? Bird used to sell
a 75 Ohm version of the 43 but has discontinued it.
I realize the line section is also designed for 50 Ohms but was just
wondering what the possibilities are.
Tnx Carl KM1H
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|