Rolling Code Inversion On PD Frequency..

[btritch]

There's a frequency here in Arkansas in one of the counties, It's a sheriff's department in Izard County, Now it says in the DB that they use "ROLLING CODE INVERSION" on all of thier conversations and transmissions, However, I heard this department from Paragould Arkansas Earlier in the day which is three counties over and heard every word, It wasn't scrambled at all... Rolling code inversion does mean scrambled conversation right? If so, Why could I Hear it, Why was it not scrambled? Can anyone explain?

 

[brandon]

It's possible they stopped using it and the database had not been updated yet.

 

[btritch]

That's true, That had crossed my mind, I caught them bleeding over on one my local channels while mobile this afternoon, I'm going to enter them here and listen, I should be able to get them...And confirm and update DB if necessary.. I thought Rolling Code Inversion meant scrambled... Thanks..

 

[fineshot1]

I am sure they do not use it all the time. They probably have it programed into there radios so they can use it only when called for - another words all they probably need to do is hit a button or switch and they are in scramble mode. Just an educated guess...

 

[btritch]

That's what I was thinking... I'm going to monitor and see..

 

[Grog]

Here's one link with a little info.

http://www.policeone.com/police-pro...pt-White-Paper-Scrambling-Technical-Overview/


And a company who sells many boards for various radios.

http://www.midians.com/html/products.asp?cat=Rolling+Code+Voice+Scramblers

 

[CDS-INC]

not trying to highjack this post, but there are times when i was living in buffalo, and the pd would be doing their normal dispatching and then a unit would cut in with encryption and transmit, but no one say's anything back to that unit and the dispatcher doesn't recognize that the unit is transmitting.
Could that be a Data transmission?

 

[Grog]

It could be, but if it was data how would you be sure it was encrypted or just unencrypted data.


Also, there are many times a unit could say something that does not need any reply.