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[aprssig] D700 vs Prius

Jim jim at stuckinthemud.org
Wed Mar 28 21:57:35 UTC 2007


I didn't think there were any production cars that had steer-by-wire
systems?

Virtually everything else yes, but my understanding was that the primary
braking and steering still had to be essentially mechanical, assisted
perhaps, but still work if the rest of the car dies.

IIRC Car manufacturers now have to do specific RF tests and make the results
available on demand via the dealers, so you know what it's been tested and
guaranteed for, so long as the equipment is installed as per their
instructions.



Jim

-----Original Message-----
From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of Amateur Radio WB8NUT
Sent: 28 March 2007 22:30
To: TAPR APRS Mailing List
Subject: Re: [aprssig] D700 vs Prius

Wow, I had no idea those Japanese cars had drive by wire and not a
conventional steering system. That would scare the heck out of me.  
Can't stand to fly in jets with just fly by wire systems. I like the hybrids
myself.

If you're concerned about RF getting into the computers on the car, what if
you have one and are driving next to some guy with a high power HF station
in his car on the way to Dayton? You not only have to worry about your own
transmitter, but also someone else - or what about getting close to a
commercial transmitter?

Duffy
www.wb8nut.com

TGatje at aol.com wrote:
> Greetings,
>  
> I am relatively new to this list but have seen some discussion of 
> installation of Kenwood TM-D700As in various vehicles.
>  
> For a new wrinkle (for me) I want to install the radio in a Toyota 
> Prius. It, of course, has some issues.
>  
> First, it has a relatively small capacity 12VDC battery. This battery 
> basically runs the control system and computers. All the heavy lifting 
> is done by the 200VDC battery. Therefore I believe I won't be able to 
> let the system run continuously when the vehicle is parked.
>  
> Second, the Prius is basically a "drive by wire" vehicle, heavy on 
> computers and such. I'm worried that the presence of a transmitter in 
> the car may cause some malfunction. The last comment of the Experience 
> center was that unapproved modifications may void the warranty!
> Contact with the dealer and the "Toyota Customer Experience Center" 
> have not been any help. I believe someone on this list mentioned 
> seeing a bulletin saying transmitters in Priuses are okay up to about 
> 100 watts but I've not been able to find anyone at Toyota to verify that.
>  
> Third, suggestions on wire routing, power tap locations, etc would be 
> appreciated.
>  
> Does anyone have any experience installing a D700 in a Prius? Or have 
> any advice on how to minimize problems? If you've seen their bulletin 
> on installed transmitters, please let me know where to find it.
>  
> I receive this list in the digest mode so answers from me may be slow. 
> You can also contact me direct at:
> TGatje at aol.com <mailto:TGatje at aol.com>
>  
> Thanks for any assistance
>  
> Tam
> AA0LY
>
>
>
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