Service manual

Guide to ASTRO™ Digital Radios
XTS 4000™
Supposedly, this is an SP product developed for a federal agency. The design mimics an iDEN™
phone, and offers very discrete operation when compared to a bulky ASTRO™ or ASTRO25™ portable.
Figure 8.1 An illustration of the XTS 4000™, taken from an FCC document.
At the time of its release, the XTS 4000™ was only available in VHF. It supports encryption
(unknown if Type 1 is supported) and all trunking features. It programs with the ASTRO25™ portable
programming software.