Amps
[Top] [All Lists]

[AMPS] More L-net/Series to Parallel questions

To: <amps@contesting.com>
Subject: [AMPS] More L-net/Series to Parallel questions
From: Peter_Chadwick@mitel.com (Peter Chadwick)
Date: Wed, 17 Feb 1999 16:07:40 -0000
Jon says:

> don't understand how the bandwidth is narrower as you say.  

Bandwidth on 10m. I set up the Smith Chart with the 4600 ohms as the load,
and looked in from the 50 ohm end. On 10m, the 2:1 SWR  Bandwidth for any
particular setting of the L's and C's was less with the series inductance
than without. I assumed about 12 pF for Cstray + Ctube , which may be too
small, and if you go for a Cstray = Ctube of say 18pF, there might be a
different answer.



        73

        Peter G3RZP





--
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


<Prev in Thread] Current Thread [Next in Thread>