dainom89 wrote: Im new to scanning, and ive seen this DEC HEX Mode Display Description 16368 3ff A TriSvcs Announce All-Calls - Fire/Police/EMS-Wide 17040 429 A B9 COMMAND Tri-Services Command 17072 42b A B10 COMMAND Tri-Services Command What is it that the "DEC" & "HEX" mean? and how to i get to those frequencies that have these numbers and such thanks
While most scannists use Decimal to identify talkgroups on Motorola systems some use Hex. Hex is used on the subscribers radios programming and often when you see Hex listings they came from a system radio. Hex is also extensively used in some software applications such as Trunker.
If you are just programming a scanner then you could probably just ignore any references to Hex. On EDACS systems you need to decide whether to use Decimal or AFS. This decision is a little more difficult as some lists only use on or the other while radios often have both. (Personally I prefer decimal, it is easier to deal with...)
Understanding the relationship of Hex and Decimal as well as Binary and the AFS format derived from Binary one can understand how several formats of trunked system numbers were derived. It can also help you decide which format(s) you want to use in your personal lists.
A couple quick questions would be why the analog Motorola systems always seem to be divisible by 16, or how did they come up with AFS for EDACS?
I wrote an extensive treatise about Hex, Dec, AFS and Binary back when I did a website for the BC780 and ScannerMaster. I think they are still accessible at http://www.bc780xlt.com/moreinfo.htm and http://www.bc780xlt.com/faq.htm
A chart that lists the various formats (Decimal, Hex, AFS and Binary) is at http://www.bc780xlt.com/hex.txt. (Be advised that these sites have not been maintained in some time so some information may be dated.)