Well, if it reads open or shorted then its probably bad. If the blue smoke
came out its probably bad also. If you punched a hole in the insulation or
partially melted it down so that it is weakened but not dead then who knows
unless you tear it apart.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> -----Original Message-----
> From: Richard Hill [mailto:rehill@ix.netcom.com]
> Sent: Sunday, December 07, 2008 00:58
> To: k1ttt@arrl.net; towertalk@contesting.com
> Subject: RE: [TowerTalk] Testing a Balun
>
> I understand that this tells the balun ratio, but does it also indicate
> that
> it is working properly? Other than tearing a balun apart, I've wondered
> how
> to tell whether I'd killed one with high voltage or too much power.
>
> Rich
> NU6T
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com]On Behalf Of David Robbins
> K1TTT
> Sent: Saturday, December 06, 2008 8:02 AM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Testing a Balun
>
>
> Hook the 259b to the coax/unbalanced side, and hook a 50 ohm non-inductive
> resistor across the balanced terminals. Read the impedance on the 259b
> and
> that will tell you the transformation... if it reads 50 ohms its 1:1, if
> it
> reads 25 ohms its 2:1, etc.
>
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt@arrl.net
> web: http://www.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
>
>
> > -----Original Message-----
> > From: towertalk-bounces@contesting.com [mailto:towertalk-
> > bounces@contesting.com] On Behalf Of KC2PCR
> > Sent: Saturday, December 06, 2008 15:52
> > To: towertalk@contesting.com
> > Subject: [TowerTalk] Testing a Balun
> >
> > Hello & Happy Holidays to All!
> >
> >
> >
> > I would be interested to know what the procedure would be to perform a
> > test
> > on a balanced to un-balanced transformer (balun) like the Unadilla W2AU
> to
> > determine It's value and also if its working properly. IE: values= 1:1 ,
> > 4:1
> > , 9:1 etc.
> >
> > I have a 259B analyzer and a bench style muli-meter as available test
> > equipment, and would obtain whatever else may be needed.
> >
> > My apologies in advance for a poor understanding in the area of antenna
> > current & impedance, it isn't from a lack of trying ;)
> >
> > Thanks & 73
> >
> > Doug - kc2pcr
> >
> > Oneida Lake, NY
> >
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> _______________________________________________
>
>
>
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