[SBE] Antenna I.D.

[Dan Rapak]

Guys,

Thanks to all who replied to my antenna question. After disassembling the antenna, cleaning the oxidation and fabricating a new tuning stub the antenna has been retuned and we were able to get down to a 1:1.1 SWR. Should be in service in the next few days.

Thanks again,
Dan Rapak

  ----- Original Message ----- 
  From: Lotus Engineering 
  To: sbe member discussion mail list 
  Sent: Wednesday, October 26, 2011 11:27 AM
  Subject: Re: [SBE] Antenna I.D.


  Dan,

                  I don't remember the manufacturer, but the antenna is familiar.  I think I even have one out in the garage. Several years ago, Civil Air Patrol bought several of these.  They are functionally just like a Ringo only physically different.  There is nothing sacred about the ring, It's just a method of matching.  The antenna you describe should have an adjustable tap connected to the coax feed point  to the  bottom loop for matching.  Tune up would be similar to the Ringo Ranger.  I don't remember it being any different from the Ringo in performance.

                  Good luck.

  Bill

   

  Bill Croghan CPBE WBØKSW

  Chief Engineer, 

  KOMP/KXPT/KENO/KBAD/KWWN/KWID

  Lotus Broadcasting, Las Vegas, NV




   

  From: sbe-bounces at sbe.org [mailto:sbe-bounces at sbe.org] On Behalf Of Dan Rapak
  Sent: Tuesday, October 25, 2011 6:20 PM
  To: SBE Broadcast Group
  Subject: [SBE] Antenna I.D.

   

  To the Group:

   

  I'm looking for some help in identifying an antenna. I recently received a 161 MHz RPB base antenna that was removed from a tower after many years of service. The antenna is generally in good shape and should still be serviceable. There are no identifying labels on the antenna.

   

  The best way to describe it is that it resembles a commercial version of a Ringo, except that where a Ringo has a closed loop stub near the middle and a ring at the bottom, this antenna has a closed loop stub at the bottom as well.

   

  Is anyone familiar with this antenna? Could you point me to a manufacturer / model?

   

  Thanks,

  Dan Rapak



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