[Mobile-Portable] Re: Question about HF mobile - SWR "Sensitivity"

[Gary Pearce KN4AQ]

At 06:10 PM 7/12/2007, you wrote:
>Ok guys another question about this mobile setup of mine.
>
>I put the 706 in low power and Swr is flat, I bump it up to medium or high
>power and swr's go abt 2.3:1...
>
>Why do they do that on high power?
>
>73,
>Brian

I have the same experience with my 706.  Here's why...

You'll notice that the 706 lacks the "sensitivity" control found on most 
external SWR meters.  The meter is not designed to operate at low power. 
The manual says that when measuring SWR, "Confirm that the output power is 
over 30 W." (page 38).  So the meter is not giving you an accurate reading 
at low power.  Your SWR is really about 2.3:1.

73,
Gary KN4AQ



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Gary Pearce KN4AQ
508 Spencer Crest Ct.
Cary, NC 27513
kn4aq at arvidnews.com
919-380-9944
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