Ok I just got the list of freaq.i understand it's digital but I just got the freaq. Used present like 855.6875.i have a list.will they work with the 93? I don't understand the hex and dec thing.
Dec & hex are just two ways of saying the same thing (think English & Spanish). Dec is decimal (base 10) which is what we learn as children (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ...). Hex is more computer like way of counting (base 16) which they teach in computer classes (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, A, B, C, D, E, F, 10,...). Say that the talkgroup is number 15 decimal, it will be talkgroup F in hex. Nearly all scanners use Decimal, while most commercial radios use hex. Just pick the one designed for your radio.
Now that that is out of the way, there's a question you're not asking, but is pretty important here. I know that since you're saying you understand the frequency, but not the dec/hex thing. This indicates that the system in question is a trunking system (
http://wiki.radioreference.com/index.php/Trunking). It used to be that radio channels were designed to use only a single frequency (e.g. dispatch was on 123.456 MHz while SWAT was on 123.678 MHz). If they needed a new channel, they had to find an available frequency (something that's often no available anymore), license that frequency, buy new base station equipment, find space on their tower for a new antenna, run new coax, etc., etc., etc. This could take months, if not years to accomplish.
They now have computerized radios and systems that take a bank of frequencies and share them with all of the channels an agency may have (perhaps 100s of channels using only a dozen or so pairs of frequencies). When they need to add a new channel, they simply program the new talkgroup into the system, program it into the necessary radios, and off they go. This may take just a few hours. The frequencies won't change, but the talkgroups (that dec/hex thing) will act like channels in the radio. When a radio on talkgroup 9 starts to transmit, it sends a command to the system which assigns talkgroup 9 to a repeater frequency, tells all radios that use talkgroup to switch to that frequency and they talk away. When they're done talking, the system releases that frequency from that talkgroup number and another one is free to use it.
