Halton edacs, which one?

[johndh]

radio referance says System Type: EDACS Networked Standard for Halton.My 246t has three different edac systems to choose from narrow, wide and S.C.A.T. which one do I use for their system?

 

[mikewazowski]

Easiest thing to do is to program in the system 3 times using each type then see what works.

However, to save you a few minutes, try Wide.

 

[Jay911]

IIRC I picked this one up when I hung out in Pearson for a few hours the other day. I seem to recall it was EDACS Wide (which is 'standard').

SCAT/SCT is a Single Channel (Autonomous) Trunking system, i.e. one frequency only.

Mike, do you know if a "narrow" system sounds any different, or is it just dependent on frequency allocation (narrow banding)?

 

[mikewazowski]

From what I remember, EDACS narrow is a 4800 baud control channel vs a 9600 baud control channel for wide.

I believe that 900Mhz was always narrowband so 4800baud is more prevalent there. I'm guessing the 9600baud control channel format wouldn't fit in the required bandwidth.

Hence, the voice channels on a 4800baud system are probably narrowband as well.

 

[DaveH]

Any system on 850MHz is assured to be wide (regular) EDACS. Narrow is 4.8k
versus 9.6k and sounds different thought I've never heard a narrow system
myself (they are said to exist on 900MHz due to bandwidth limitations).

Check out the two diifferent sounds here:

http://www.kb9ukd.com/digital/

Dave