[160m] Receiver Front End Saver Question

[Thomas Giella KN4LF]

Tom,
  Thanks for the response. The loop will be single band for 160 meters. I meant to say 15 feet, 25 feet was a typo. I'm using RG-8 for the feedline.
I figured that elevating the loop some would assist in the loop being more responsive to lower angle signals. Is this line of thinking incorrect?

73,
Thomas F. Giella, KN4LF
Retired Space & Atmospheric Weather Forecaster
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 33.6397 N 82 09 52.4052 W
kn4lf at arrl.net

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  ----- Original Message ----- 
  From: Tom Rauch 
  To: Thomas Giella KN4LF ; a Yaesu E-Group ; a 160 QTH e-List ; a FT-1000MP eGroup ; a 1000MP QTH e-List 
  Sent: Wednesday, November 10, 2004 1:33 PM
  Subject: Re: [160m] Receiver Front End Saver Question


  But now I have purchased the 8 foot diameter outdoor 160
  meter coaxial magnetic loop antenna made by KC2TX for
  receiving plus the KD9SV 160 meter preamplifier. I'm on 1/4
  acreville and the loop will be mounted on a push up pole at
  25 feet and unfortunately within 100 feet of the 160 meter
  inverted L transmitting up to 1000 watts PEP. I now wonder
  if I'm increasing the danger of damaging the front end of
  the V Field and should I put a front end saver device in
  line like the one KD9SV also makes?!>>>

  I glanced at that page and I hope you are not building a
  two-band loop. A small loop like that has very low impedance
  off resonance. The last thing I'd  do is parallel connect
  small loops tuned to different bands, since the loop for one
  band would effectively short the other band out.

  Single band would be OK, but without a matching system you
  might want to consider placing the preamp at the loop.

  Assuming your cables are good the first thing to go by a
  large magin will be the preamp. The KD9SV preamp saturates
  at low signal levels, and will be the protection for the
  radio. Any "saver" should go between the preamp and the
  loop. The FT1000 Field would be fine, unless you had an open
  shield someplace.

  Why do you want to have the loop up 25 feet?

  73 Tom



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