[Hammarlund] HQ140 - really *LOW* sensitivity

[Bill Breeden]

Glen,

I read your excellent article some years ago and have used TV baluns with success with coax fed antennas.

Thanks and 73,

Bill - NA5DX

  ----- Original Message ----- 
  From: Glen Zook 
  To: Bill Breeden ; hammarlund at mailman.qth.net 
  Sent: Wednesday, January 16, 2013 2:48 PM
  Subject: Re: [Hammarlund] HQ140 - really *LOW* sensitivity


  Here is the article on using TV baluns to improve receiver sensitivity in the older receivers that were designed for balanced antenna feeds.


  http://k9sth.com/uploads/TV_baluns.pdf



  Suitable baluns are available from Parts Express for well under $1.00.


  http://www.parts-express.com/


  Glen, K9STH


  Website: http://k9sth.com


------------------------------------------------------------------------------
  From: Bill Breeden <breedenwb at cableone.net>
  To: hammarlund at mailman.qth.net 
  Sent: Wednesday, January 16, 2013 12:10 PM
  Subject: Re: [Hammarlund] HQ140 - really *LOW* sensitivity



  Bob,

  Don't know what kind of antenna you are using, but all of the Hammarlunds that I have owned have a balanced antenna input with three terminals on the antenna terminal strip.  The terminal strip on my HQ-145 is marked "A", "A", and "G" from left to right.  If you are using any antenna other than a balanced antenna with a balanced feed line, a short jumper or strap should be used to connect the center "A" and right hand "G" terminals together.  I often use a random single wire antenna on the left "A" terminal and the jumper between the other "A" and "G" makes all the difference.