Proper modualtion for digital TRS

[W2SJW]

Guys,

Everyone that owns a modern Uniden scanner knows the requisite boost in audio that occurs when you set a conventional channel or TRS to NFM instead of FM (along with other things going on in the background that UPMan has alluded to).

My question is a simple one - what modulation setting should I be using to optimize the decoding of true P25 systems & mix-mode Moto Type-II systems that run almost 100% in digital?

I can't remember if in the past people spoke of always putting a digital system to FM, regardless of weather or not the system was on narrowband frequencies (ie - 502.250 instead of 502.2375, etc...).

 

[jnewell]

Did this get answered elsewhere?

 

[W2SJW]

I found a bunch of things related to the 396T that said ASTRO systems should be left at 'FM' for proper decoding.

I would assume that the new decoder in the XT would warrant a re-examination of this, but until then, I set my digital systems in the XT as 'FM' instead of 'AUTO'...