[HCARC] Curious question

Gary and Arlene Johnson qltfnish at omniglobal.net
Sun Aug 26 13:26:47 EDT 2012


This is just one of those questions that come out of an overactive mind.  Kerry had said something about a dipole being different as it passes over a driveway with concrete matting in it - Mind goes into gear and comes up with a What IF.  Happens to me a lot - too much time on my hands I guess.  I agree, I do need to get on the air.  Will be picking up the club radio from Harvey this week as soon as a second set of antenna mast poles comes in from Ebay.  Then I can fly a G5RV antenna I have that I got for $5 at an Estate sale and get on the air.  I have a new set of 6 volt Golf Cart batteries to power it with and a solar panel set to recharge the batteries.  The batteries have 220 amp hour storage so should be good for Solar as well as radio.  I so need to learn how to solder to connect coax to the window line on the G5RV.  I can solder copper pipe with the best of them, but a torch might be a little bit hot for the coax.  Where is the best place to get lead solder and a soldering iron locally - Home Depot / Gibson's ????  How powerful a solding gun / iron will I need??

New radio should be here by Mid-Sept.  I have a mfj-949E tuner that should work.

Gary J
N5"BAA"
  ----- Original Message ----- 
  From: Bob Richie 
  To: Gary and Arlene Johnson 
  Cc: HCARC Reflector 
  Sent: Sunday, August 26, 2012 11:43 AM
  Subject: Re: [HCARC] Curious question


  There are designs for running "radials" under dipoles. Try it and see. My guess is you will get more results by adjusting the RF gain. I have a vertical and a dipole and sometimes switch back and forth between the two then select the one that give best results at the time. I built a dipole that was fed with coax and worked five bands with it one day a couple of years ago. Any working transceiver with any antenna will work better than no receiver and no antenna. The real goal of ham radio is to get on the air. You'll never have a perfect station so just get started. You will get a bigger thrill out of having someone come back to your CQ on any antenna than just talking about minor tweaks to systems that are not perfect.

  Bob
  K5YB
  Kerrville, TX 78028


------------------------------------------------------------------------------
  From: Gary and Arlene Johnson <qltfnish at omniglobal.net>
  To: hcarc at mailman.qth.net 
  Sent: Sunday, August 26, 2012 11:00 AM
  Subject: [HCARC] Curious question


  "Typically they are not even 
  symetrical: one end will be higher than the other, one end may be near a 
  building or in trees, paret of the dipole may run over a driveway which has 
  steel mat buried in the concrete, etc.  The typical dipole as installed by 
  hams is not balanced.  Many of the dipoles I've seen are not even in a 
  straight line."

  A curious question about Dipole antennas from the above portion of a question on Baluns/Ununs:    What would happen if one were to run concrete reinforcement mat that is 8 feet wide and 20 feet long under the entire length of a dipole that was cut for 40 or 80 or 20 meters suspended approx 40 feet above the ground??  The mat could be layed either with the 8 foot or the 20 foot perpendicular to the antenna.

  Gary J
  N5"BAA"


  ______________________________________________________________
  HCARC mailing list
  Home: http://mailman.qth.net/mailman/listinfo/hcarc
  Help: http://mailman.qth.net/mmfaq.htm
  Post: mailto:HCARC at mailman.qth.net

  This list hosted by: http://www.qsl.net
  Please help support this email list: http://www.qsl.net/donate.html




More information about the HCARC mailing list