T model has 6000 channel memory
XT model has 25000 channel memory 3x times the memory
Rumor is XT firmware area memory is larger too.
What XT has T does not see following
Support for P25 Conventional channels that include NAC and TGID user differentiation (P25 One-Frequency Trunk)
EDACS ESK support
Control Channel Data Output – allows the analysis of control channel data without the need to perform invasive modifications to the scanner Now supported in UniTrunker version 1.0.0.10 or newer.
Close Call Temporary Store (last 10 hits)
Fire Tone Out Search - built-in frequency counter displays the received tones.
Multi-color display backlight
Multi-Site support
NAC decoding
Ability to flag a channel as Digital, Analog, or All
Temporary Lockout
System / Channel Number Tagging - provides rapid access to a specific system or channel.
Individual channel volume offset
Intermediate Frequency Exchange - changes the IF used for a selected frequency to help avoid image and other mixer-product interference on a frequency.
Key Safe Mode - lets you hand the scanner to a novice user and prevent programming from being modified.
Private Systems - lets you flag a system so that it cannot be read out of the scanner or modified.
Priority ID Scan on trunked systems
Preemptive Priority on Motorola analog systems
Quick-Access Search Keys
Negative Channel dropout delay (forced resume)