[DeTomaso] Speedhut versus Autometer gauges help

Fri Jan 18 18:41:09 EST 2013

It sounds like Speedhut has great customer service, but my experience with Autometer is similar.  I called them once to ask what MAP sensor I could use with one of their gauges, and they asked for my address and sent me one without asking any questions.  

I like some of their gauges better than similar Autometer gauges, but have had terrible experience with Stewart Warner customer service.  Kind of non-existent.

Ken

________________________________
From: Boyd Casey <boyd411 at gmail.com>
To: Gray Gregory <rgg at gregorycook.com> 
Cc: Charles McCall <charlesmccall at gmail.com>; "detomaso at poca.com" <detomaso at poca.com>; "michael at michaelshortt.com" <michael at michaelshortt.com>; Ed Mendez <edducati at mac.com> 
Sent: Friday, January 18, 2013 3:30 PM
Subject: Re: [DeTomaso] Speedhut versus Autometer gauges help

Dan,
Considering your background I should have known  you would have the inside
scoop on GPS!
Boyd

On Fri, Jan 18, 2013 at 6:09 PM, Gray Gregory <rgg at gregorycook.com> wrote:

> The GPS units used to run the auto steering in big farm tractors are very
> accurate (to about 4" or less) but they do cost considerably more than
> automotive units.
>
> Gray
>
> -----Original Message-----
> From: detomaso-bounces at poca.com [mailto:detomaso-bounces at poca.com] On
> Behalf Of gow2 at rc-tech.net
> Sent: Friday, January 18, 2013 4:23 PM
> To: Boyd Casey
> Cc: Charles McCall; detomaso at poca.com; michael at michaelshortt.com; Ed
> Mendez
> Subject: Re: [DeTomaso] Speedhut versus Autometer gauges help
>
> There are a couple different reasons for Aircraft GPS being more
> expensive. One is they typically require more satellites to confirm
> navigation. They also notify you of accepted navigation levels because of
> available satellites and due to messages satellite give out about their
> integrity.
>
> Anything not aviation just takes the signal they get and say here it is.
>
> Also, Aviation is certified to a high degree of scrutiny and lower
> production then other GPS marketed for the general use. It means a high
> price but not necessarily a better unit.
>
> GPS tracking is not that hard. Cheap devices doing computations will be no
> less accurate then expensive devices. They all read the same signal.
>
> As far as the sat moving, it is not about the movement of the sat
> refference. That is minor or slow to the point it has no effect on the
> accuracy of speed; only that the map is off.
>
>
>
>
> > As  I said , I knew  a certain degree a certain degree of locational
> > information was intentionally erronious. The speed information may
> > have been urban legend or perhaps the unit in question was not  new
> > enough or the GPS  being used was  a portable aviation unit. They make
> > portable pilot  GPS thigh mounted  units that need to be able to meet
> > the speed and altitude limits of aircraft the are intended to be used
> > in. I believe the articcle I read refered to Automotive GPS units. The
> > air craftgps devices are considerabelly more expensive. I picked up my
> > last Tom Tom for $99 bucks. The gist of this article was "build a
> > cruise  missle for  $1000 (or something along those lines.  I first
> > read this article years ago and the last thing I remember about the
> > whole subject the Government ( New Zealand or Austrailia) put the
> > Kalashnikov on the whole thing. I believe they approached the author
> > and warned him about " actions that were contrary to the "national
> > security interests" and or the risk of being kidnapped by Al Queda or
> > Iran etc. So that was that. Just now I searched and found this link.
> >
> > http://www.aardvark.co.nz/pjet/cruise.shtml
> >
> > On Friday, January 18, 2013, Ed Mendez wrote:
> >
> >> I appreciate the feedback on these gauges. The seam better than
> >> Autometer then. So thanks.
> >>
> >> Can someone tell me the size of the factory tach and speed? 5" 4", etc.
> >>
> >> Ed
> >>
> >>
> >> On 18/01/2013, at 12:30 PM, Roland Jaeckel <pantera874 at t-online.de>
> >> wrote:
> >>
> >> > Brake down and speed up and see then, how fast it follows. We tried
> >> > it
> >> on track and it couldn't show the speed at any time right.
> >> > In town, the same situation.
> >> >
> >> > --------------------------------------------------
> >> > From: "Charles McCall" <charlesmccall at gmail.com>
> >> > Sent: Friday, January 18, 2013 8:23 PM
> >> > To: "'Boyd Casey'" <boyd411 at gmail.com>; "'Roland Jaeckel'" <
> >> pantera874 at t-online.de>
> >> > Cc: <michael at michaelshortt.com>; "'Ed Mendez'" <edducati at mac.com>;
> >> > <
> >> detomaso at poca.com>
> >> > Subject: RE: [DeTomaso] Speedhut versus Autometer gauges help
> >> >
> >> >> I turned an early-generation GPS receiver on once on a commercial
> >> airplane
> >> >> flight and it read perfectly well at 600mph so I think that the
> >> maximum
> >> >> speed thing is urban legend.
> >> >>
> >> >> The rest is true - a certain amount of error is built in for
> >> >> security reasons. But I think that is more related to exact
> >> >> location than your
> >> speed.
> >> >>
> >> >>
> >> >> On an open highway with no tall buildings, I get a fairly stable
> >> >> gps
> >> speed
> >> >> on my TomTom and believe it to be more accurate than the stock
> >> >> speedo
> >> >>
> >> >> Charles McCall
> >> >> Raising Pantera Awareness Across Europe
> >> >> 1985 DeTomaso Pantera #9375
> >> >> http://www.poca.com/index.php/gallery/?g2_itemId=2323
> >> >>
> >> >>
> >> >> -----Original Message-----
> >> >> From: detomaso-bounces at poca.com [mailto:detomaso-bounces at poca.com]
> >> >> On
> >> Behalf
> >> >> Of Boyd Casey
> >> >> Sent: viernes, 18 de enero de 2013 20:16
> >> >> To: Roland Jaeckel
> >> >> Cc: michael at michaelshortt.com; Ed Mendez; detomaso at poca.com
> >> >> Subject: Re: [DeTomaso] Speedhut versus Autometer gauges help
> >> >>
> >> >> GPS units have the ability to be incredibly accurate, that's down
> >> >> to millimeters and micro seconds. The problem is this these levels
> >> >> of
> >> accuracy
> >> >> are limited to miltary GPS units. Civilian GPS units are forced by
> >> legal
> >> >> statute to build in varying degrees of error. The governments that
> >> enforce
> >> >> theses regulations are trying to prevent GPS units from being used
> >> >> by terrorist groups .
> >> >> I don't know the particulars but I was told that GPS units
> >> >> designed
> >> for
> >> >> automotive or marine use are also set up so they can't be used in
> >> anything
> >> >> traveling over a particular speed ( like 200 mph). This is
> >> >> supposed
> >> to
> >> >> prevent their use in a home made cruise missel . A few year ago a
> >> >> guy
> >> in
> >> >> New Zeland was offering plans on popular mechanics  to build a
> >> >> cruise missel power erred by a ram jet that was supposed to be
> >> >> able to be constructed with all "off the shelf components,GPS,
> computer, etc"
> >> With
> >> a
> >> >> substantial range and a high speed ( like 500 mph).
> >> >>
> >> >> So you can blame all the errors in GPS  on the government and the
> >> >> terrorists. On a brighter note I had heard that the government
> >> >> had recently lowered  the required degree of error built in on GPS
> units.
> >> >>
> >> >> Boyd
> >> >>
> >> >>
> >> >> On Friday, January 18, 2013, Roland Jaeckel wrote:
> >> >>
> >> >>> In town, they are zero accurate. If they don't have contact to
> >> >>> all satelites, they can't notice, that youre driving thrue a turn.
> >> >>> Whatch for it in town and anywhere while changing speed quickly.
> >> They
> >> >> can't
> >> >>> follow as quick as a convetionel speedo can. They work for a
> >> >>> boat,
> >> but
> >> >> that
> >> >>> is way slower in changing speeds.
> >> >
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