[50mhz] RFI and car computer

[n_griggs at bellsouth.net]

Depending on the vehicle manufacturer, the engine computer as well as the transmission, antilock brake,  airbag and the cruise control computer are located in different places.  The engine computer on Chevy's is usually on the passenger side, Ford on the drivers side for vans and trucks - passenger side for cars.  Early model Ford vans it is on the drivers side under the hood.

Neal  KC4YCM
-------------- Original message from "Chris Boone" <cboone at earthlink.net>: -------------- 


> John, ANY car in the last 20 yrs or so has a CPU and an EPROM or EEPROM that 
> sets engine performance, etc. My 89 S10 Blazer did and it DID NOT like 20mtr 
> SSB (I think the inside was a good cavity resonator for that band...none of 
> the other bands had problems but any signal on 20 out of the mobile would 
> KILL the engine dead in its tracks!) 
> 35watts on 6 should NOT cause any issues if you mount the antenna in proper 
> place that doesn't overload the CPU (The engine CPU box is USUALLY on the 
> right side of the passenger compartment next to the firewall.) I run 100w 
> 6FM in my 99 Blazer with a cowl mounted antenna on the DRIVER or left side 
> of the hood...never any problems! 
> 
> Chris 
> WB5ITT 
> 
> -----Original Message----- 
> From: 50mhz-bounces at mailman.qth.net [mailto:50mhz-bounces at mailman.qth.net] 
> On Behalf Of John AA5JG 
> Sent: Saturday, July 05, 2008 10:49 AM 
> To: ft100 at yahoogroups.com; yaesu at mailman.qth.net; icom at mailman.qth.net; 
> 50mhz at mailman.qth.net; vhfcontesting at contesting.com; 6meter at yahoogroups.com 
> Cc: nn9k at arrl.net 
> Subject: [50mhz] RFI and car computer 
> 
> We just bought a new (to us) 2007 Chrysler Town and Country Minivan. The 
> salesman went over the fact that the van has a computer in it a couple of 
> times. Has anyone had problems with their rig affecting the on-board 
> vehicle computer? This is not the on-star or GPS computer, just the run 
> which runs the vehicle. I would be mainly going mobile on 6m at around 35 
> watts or so on SSB and CW. 
> 
> 73s John AA5JG 
> 
> 
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