Re: [TenTec] Hercules II anomaly?

["Mike Brown" <k9mi@sbcglobal.net>]

Rick, is the 20m antenna closer to the shack then the other antennas?

73, Mike K9MI


> ----- Original Message ----- 
> From: "Rick Williams" <rick.williams@telus.net>
> To: <tentec@contesting.com>
> Sent: Monday, February 06, 2006 5:14 PM
> Subject: [TenTec] Hercules II anomaly?
>
>
> > Well I have a new one?  I have recently noticed a discrepancy between the
> > SWR measured by my Orion (internal tuner disabled) and by my LDG DWM-4
> > wattmeter.  I've checked the LDG meter with my Bird and all seems okay.
> > So
> > I've tried to isolate the problem.
> >
> > The problem disappears when I take the Hercules II out of the circuit. 
> > My
> > problem occurs on 20 metres with the rig showing an SWR of about 2.5 : 1
> > and
> > the external meter about 1.4 : 1.  When I remove the Herc input and 
> > output
> > coaxes from the amp and connect them together with an Amphenol barrel
> > connector both meters read an SWR of about 1.4 : 1?  With power, control
> > and
> > keying loop cables removed the problem still exists.
> >
> > Of course all of this is happening with the Herc off and the only
> > components
> > I can see in the circuit are the input relay - K1 and the vacuum relay.
> > Both are unenergized and normally closed with a DC resistance of less 
> > than
> > 0.5 ohms.  I have checked 80 metres, 17 metres and 15 metres and the
> > problem
> > does not occur there.  It seems confined to 20?
> >
> > Thoughts appreciated.  Thanks.
> >
> > 73,
> >
> > Rick
> > VE7TK
> >
> > Website:  http://www3.telus.net/ve7tk
> >
> >
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