KL7UW
HF TOPICS 




 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 



  Update for March - 2010

  An Elecraft K3/10 10w HF transceiver has been ordered that will replace using the FT-847
  on HF bands.  A CCI 300w HF solid-state linear amplifier kit will be built.  It should run
  at 200w with the drive available from the K3/10.  Hopefully, the CCI linear will also 
  operate on 6m (with some modification).  The CCI linear will also drive the Swan
  linear for running 600w 160m - 20m.

  I operate using either an 80-40m dipole or the TH3-mk4 Tri-band yagi (20-15-10m).  
  On November 25, 2008 the second 50-foot Tower was raised supporting my Tri-band yagi and 
  the 80-40m inverted vee dipole and a 30m sloper diplole.
 
  I occasionally operate on 20m PSK-31 and check into the 14.345 MHz weekend EME Net at
  1700 utc.   On 80m I occasionally check into Nets on 3.933 MHz:
    

  • the Motley Group on week nights at 2100 local time.
    • 

  • the Swap-N-Shop Net on Saturday mornings at 1000 local time.

 
  I have a Swan Mk-III commercial linear that covers 2-16 MHz using a pair of 3-400z for
  1000w input on SSB.  The Swan HV power supply does double-duty providing power for
  my 50 and 144 MHz amplifiers.
 
  Examining the layout of towers at the new QTH, they are well situated to support a 
  130 foot horizontal wire at 40-50 feet above ground.  This provides the opportunity to
  put up an 80 meter Half-Square antenna beaming toward 145 degrees (West Coast USA) and
  325 degrees to Asia.
 
  The HF Tower can support the inverted vee at right angles to the Half-square.  More 
  detail about the HF Tower can be seen on the Six Meter Page.
 
  Photos of tower project:
  Photo-1, Photo-2, Photo-3, Photo-4, Photo-5, Photo-6, Photo-7, Photo-8, Photo-9  
 

  New J-Pole for 6m/10m Installed
 
  A combination J-Pole vertical antenna has been set up to permit working 6m FM stations and on 10m FM.
  Go to the J-Pole page
  


 
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