HF WIRE ANTENNAS MADE IN GERMANY
HF WIRE ANTENNASMADE  IN  GERMANY

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Photo:  DJ0IP

RMU-0 for CW

Die-Hard CW Fans may find that the 807-xx resonates too high in the 80m band when using the standard RMU (RMU-S).

 

The "RMU-CW" is currently not available due to component sourcing problems.

 

REMEMBER: 

  • The RMU only shifts resonance on the 80m band. 
  • It does not change any of the higher bands.

 

Work-Around:  "RMU-0"

(Yes, it's just a piece of wire.)

 

Here is what its SWR curve typically looks like:

 

For Comparison:  The 807-HD with Standard RMU (RMU-S):

 

Comments:  If you think the lower SWR will improve your signal in the CW portion of the band, you are kidding yourself.  The 'On-The-Air' performance of the antenna is exactly the same, regardless of whether you use the RMU-S or the RMU-0.  Just use a good efficient matchbox if needed.  However, if you absolutely want lower SWR for the bottom end of the band, use the RMU-0.  (DJ0IP)


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