ASTRO Digital XTS 3500 radios are available in three basic models.
Table 1 ASTRO XTS 3500 Basic Features
Feature Model I Model II Model III
Display None LCD LCD
4 lines/ 4 lines/
12characters per line 12characters per line
Keypad None 3X2 button 3X6 button
Channel Capability 48 255 255
Dialing from Prestored List No Yes Yes
Programmable Softkeys No Yes Yes
The ASTRO Digital XTS 3500 radio utilizes Motorola's revolutionaryFLASHport technology. FLASHport makes it possible to add software thatdrives the radio's capabilities both at the time of purchase and later on.Previously, changing a radio's features and capabilities meant signiﬁcantmodiﬁcations, or buying a new radio. But now, similar to how a computer canbe loaded with different software, the radio's features and capabilities can be upgraded with FLASHport software.