• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

996 and 396 ?

Status
Not open for further replies.

wbigcount

Member
Premium Subscriber
Joined
May 15, 2003
Messages
748
Location
Kansas City
This may be a stupid question but when you program a Motorola Type II SmartZone system that has Analog and APCO-25, do you make the system 800 standard or P-25. thanks
 

aka_ramon

Member
Joined
Jul 4, 2003
Messages
25
This is a very common question that causes lots and lots of confusion.

The choice comes down to the format of the control channel, not whether the voice signals being transmitted are analog or IMBE encoded.

If the radio system is a Motorola system using a 3600 or 4800bps control channel, it's "standard". If the radio system has a 9600bps control channel that conforms to the APCO-25 Common Air Interface (CAI) standard, it's P-25.

Systems that use either of these control channel types can have BOTH analog and digital IMBE encoded (A.K.A. P-25) audio.

Ramon
 
Status
Not open for further replies.
Top