[TenTec] Ford vehicle RF noise.

[Bill Harris]

Besides tailpipe grounding,  we grounded the engine hood on both sides. We even went as far as a shielded ignition.  Also, coaxial by-pass capacitors on the 12 volt generator. (this is a few years back)  The alternator can be troublesome as well.  Installed grounding devices that went in the axel hub caps and  injected a powder that prevented static build up in the tires.  Ohoo yeah,,,ground straps between the chassis and frame (each side).  All this to get the noise floor down for operation on the 40mHz FM band.  I would expect the vehicles of today are noiser with all the computers on board.
Gud Luck.

Carry-on
BillHarris w7kxb
  ----- Original Message ----- 
  From: Duane Calvin<mailto:ac5aa1 at gmail.com> 
  To: wb2vuf at arrl.net<mailto:wb2vuf at arrl.net> ; 'Discussion of Ten-Tec Equipment'<mailto:tentec at contesting.com> 
  Sent: Sunday, September 30, 2007 6:55 PM
  Subject: Re: [TenTec] For Sale: Ten Tec Argonaut V


  Ford has stopped doing this as a TSP?  It worked great on my 2002 F-150 (for
  the fuel pump  noise, anyway).  Took the overall noise from S9+20 down to
  S9.  Grounding the tailpipe took the noise down to S6.  A few things I've
  tried after that haven't helped much.  Mostly ignition noise left now.

  Duane


  Duane Calvin, AC5AA
  Austin, Texas
  www.ac5aa.com<http://www.ac5aa.com/>  
   
  -----Original Message-----
  From: tentec-bounces at contesting.com<mailto:tentec-bounces at contesting.com> [mailto:tentec-bounces at contesting.com]
  On Behalf Of Bwana Bob
  Sent: Sunday, September 30, 2007 8:35 PM
  To: Discussion of Ten-Tec Equipment
  Subject: Re: [TenTec] For Sale: Ten Tec Argonaut V

  The Ford fuel pump RFI filter produces mixed results and requires 
  dropping the tank because the filter is installed right at the pump. A 
  better way (IMHO) is to cut into the pump wiring at the nearest 
  connector (about 2 feet from the tank) and installing coaxial type 
  feedthrough capacitors. You can find more info at 
  http//www.4x4central.com in the ham radio forum.

  73,

  Bob WB2VUF