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I Read something interesting in the Specialist Handbook about keyfobs

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Old Aug 5, 2015 | 04:21 PM
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Default I Read something interesting in the Specialist Handbook about keyfobs

From page 61 of the "Crossfire Specialist" PDF.


The transmitter output signal includes a rolling code that changes in an indecipherable manner every time a button on the transmitter is presses. The receiver is synchronized with a valid transmitter to accept signals with a new code, but not a previous code. However, if the transmitter unlock button is pressed repeatedly while out of range of the receiver, synchronization may have to be restored.


SO, to sum up, don't hammer away on your keyfob buttons!
 
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Old Aug 5, 2015 | 06:47 PM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

It keeps track of both fobs ? I usually grab the same one & only occasonally the other.

ps URL please of the .pdf
 
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Old Aug 5, 2015 | 09:29 PM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

I got the PDF from this forum, I'll look where it was.
 
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Old Aug 5, 2015 | 10:05 PM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

https://www.crossfireforum.org/forum...ollection.html
 
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Old Aug 6, 2015 | 12:30 AM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

I had read that when I was doing research on the DRBIII program..
 
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Old Sep 3, 2015 | 11:13 AM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

Originally Posted by pioneer4x4
From page 61 of the "Crossfire Specialist" PDF.
Crossfire Specialist? I can find no such listing.
You mean the "Student Reference Book".
The quotation you give starts on page 60.

This is a handy book as it explains more of the facts rather than how to take one out and replace the part.
They are not available now, they have sold them all. I have two, I am saving it along with other spares, they are better than the stock market.
The other book no longer available is the "Convertible and Supercharger Engine Update", I have one of them. Nice book.
 

Last edited by onehundred80; Sep 3, 2015 at 11:15 AM.
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Old Sep 5, 2015 | 08:52 AM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

Originally Posted by onehundred80
Crossfire Specialist? I can find no such listing.
You mean the "Student Reference Book".
The quotation you give starts on page 60.

This is a handy book as it explains more of the facts rather than how to take one out and replace the part.
They are not available now, they have sold them all. I have two, I am saving it along with other spares, they are better than the stock market.
The other book no longer available is the "Convertible and Supercharger Engine Update", I have one of them. Nice book.
It is a nice book you tried to help me find one once been looking ever since. if anybody has an extra for sale p.m. me please .
 
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Old Sep 5, 2015 | 05:51 PM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

Originally Posted by pioneer4x4
From page 61 of the "Crossfire Specialist" PDF.


The transmitter output signal includes a rolling code that changes in an indecipherable manner every time a button on the transmitter is presses. The receiver is synchronized with a valid transmitter to accept signals with a new code, but not a previous code. However, if the transmitter unlock button is pressed repeatedly while out of range of the receiver, synchronization may have to be restored.


SO, to sum up, don't hammer away on your keyfob buttons!
Rolling code, yup part of the locking part of the remotes...

RKE Analysis

and here figure 2.3
http://www.atmel.com/Images/Atmel-26...ation-Note.pdf
 
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Old Sep 5, 2015 | 05:59 PM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

Originally Posted by Padgett
It keeps track of both fobs ? I usually grab the same one & only occasonally the other.

ps URL please of the .pdf
Some systems will take the first push on that unused FOB near the car again and not act upon it but use that push to re-sync it since it has been away for too many pushes.
 
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Old Sep 5, 2015 | 06:02 PM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

Originally Posted by pioneer4x4
From page 61 of the "Crossfire Specialist" PDF.


The transmitter output signal includes a rolling code that changes in an indecipherable manner every time a button on the transmitter is presses. The receiver is synchronized with a valid transmitter to accept signals with a new code, but not a previous code. However, if the transmitter unlock button is pressed repeatedly while out of range of the receiver, synchronization may have to be restored.


SO, to sum up, don't hammer away on your keyfob buttons!
I read one type of RKE system would take over 270 pushes to get past the need to re-learn the remote again.
 
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Old Sep 5, 2015 | 06:03 PM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

Originally Posted by onehundred80

The other book no longer available is the "Convertible and Supercharger Engine Update", I have one of them. Nice book.
And your never gunna scan it for us are you?
 
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Old Aug 1, 2018 | 09:58 AM
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Default Re: I Read something interesting in the Specialist Handbook about keyfobs

I always try to find smth weird in surrounding! But the only thing that I found is in essays of my students, that's why I propose to write paperworks professionally, I advice you to read more about my recommendations.Don't waste your time on that thing that you even don't need.
 
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