Can Tenna

[Ed Kotkiewicz]

Steve and Anne Ray wrote:

> 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?

EK> Go read the Service Bulletin secion on Dale Wentz's site and you will find that after
many years of being submerged in oil, some of the resistors may have broken down due to a
leak path.

Ed

>
>
> 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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