Topband: impedance of 3/8 radiator and question on matching

[Charlie Cunningham]

Hi, Carsten

You might try it with just a series C into the 3/8 wave on 80m. The VSWR may
not be that bad!  Then you could always add a 4:1 balun or transformer if
needed.

73,
Charlie, K4OTV

-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Carsten
Esch
Sent: Sunday, October 20, 2013 9:35 AM
To: topband at contesting.com
Subject: Topband: impedance of 3/8 radiator and question on matching

Hi,

I am playing with a 3/8 radiator for 80m (to the time being fed against 
40 radials of each 40m length).
What is the impedance I should expect from a 3/8 radiator?

My plan was to use it as a 3/8 on 80m and match it for you on 160m too 
(until we will put a Gamma match on our 60m tower).

Here is what I measured with my AIM today:
https://www.dropbox.com/s/48sp1703lnaiyu1/3%3A8_Test.bmp

(and here the actual *.SCN file):
https://www.dropbox.com/s/ql17wcsk2rpqj1o/3%3A8_Test.scn

Any advise on matching would be welcome ;-)

Thanks!

Carsten, DL6LAU


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Topband Reflector