Can Tenna

[Steve and Anne Ray]

Thanks for all the replies I got, from practically everyone I heard from the
resistance had dropped down to around 41 ohms.  One reply said his was at 41
ohms when he built it.   Seeing it is not critical for my apps I am not
going to fix it.    I will use my QRP rigs and QRP dummy loads to verify SWR
between antenna and rig switches.

73,

Steve Ray K4JPN ex K1VKW HW-101, HW-8, SWL 30-40,
Pixie II, NC 38S, OHR 100A 30 M and Heath Kit fan
Warner Robins, Georgia


-----Original Message-----
From: Steve and Anne Ray <sbralr at worldnet.att.net>
To: Heath Users Group <HEATH at LISTSERV.TEMPE.GOV>
Date: Wednesday, July 28, 1999 7:26 PM
Subject: Can Tenna


>I built my Heath Can Tenna about 20 years ago.  Recently I did some
>rerouting of the RF cables with a new Antenna Switch.  I noted the SWR was
>about 1.2 to 1.3 to one with the Can Tenna yet when I used a small QRP
dummy
>load the SWR was flat, the resistance of the QRP dummy load was 51 ohms.  I
>then went on to measure the resistance of the Can Tenna and found it to be
>41 ohms, obviously this was the cause of the 1.2 SWR.  I have never had a
>rig that runs more than 100 Watts so I don't see how I could ever over heat
>it.  Has anyone else run into this where the Can Tenna has changed
>resistance by such a significant percentage?
>
>73,
>
>Steve Ray K4JPN ex K1VKW HW-101, HW-8, SWL 30-40,
>Pixie II, NC 38S, OHR 100A 30 M and Heath Kit fan
>Warner Robins, Georgia
>
>

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