- Mar 9, 2006
Looks like those "type 2 toroids", referenced in that article posted by LooseCannon, are pretty inexpensive.
Frys Electronics has them for just over a couple of bucks, a piece.
That signal sniffing trick was pretty spiffy, too.
Thanks I see that is a good price, So does the circle just go over the wire close to my fuel pump, just tie it there? Sorry for the dumb questions, just never seen one before
You can improve the signal to noise ratio by using better coaxial cable also for better receive. I've seen 1db of loss in just a couple feet of similar cable.Thanks for the reply. To answer the few questions, it's 102" S.S. Whip. I used new rg8x coax 18' long with 4 point hand soldered pl259's. My coax is attached between the frame and the fuel pumps so it my help to move to the outside of the frame so the frame blocks the coax? I think all my grounds test great , it's the pumps because I have two tanks with a pump in each and I have noticed the when selected one pump emit more noise than the other. And by doing the turn key on and hear the pump build pressure for 1 sec. had the noise until pump stops.
well it sounds to me like a bunch of ferrite is in your future.
here is a kit that might help: http://www.ebay.com/itm/stardrift-1...299064?hash=item237f578b38:g:TTQAAOSwTuJYu2dt
my recommendation would be to buy a roll of stranded copper DC power cord like this:
and to wrap a couple of turns through five of the beads all in a row and then put crimp on connectors on either end.
make up two of these assemblies.
then go under the truck, find the power wires going to the fuel pumps (power and ground) and cut them as close to the fuel pumps as is feasible.
then crimp on mating connectors, slide some heat shrink tubing over the wires for water protection, and crimp in your new filters.
there is another option also.
check out this mount: http://www.ebay.com/itm/FireStik-SS...844476?hash=item41b83c767c:g:Gn4AAOSwXeJYG6VN
if you chose to use this mount, your antenna would be higher up on the vehicle, your coax could run through the bed instead of under the truck, and you would have the shielding of the bed itself between the antenna and the fuel pumps.
best of luck, and just as a tip for every mobile operator out there, a set of these placed right at the feedpoint of your antenna will improve your performance and really clean up common mode issues: http://www.ebay.com/itm/Snap-On-1-1...497277?hash=item20f9d5e1fd:g:RqAAAOSwrklVVVyV
honestly it's one of the best improvements you can make to your mobile system IMO.