I'm not real knowledgeable about these, they were just cut over to a new system and were fully functional when removed. I have the full setup from a 12 site system from 4 post cabinets to manuals, I will sell a piece or the whole setup. 40 4post racks full of equipment and 3 racks with comparators. Located in Central Ohio and can transpoert. The item "Motorola AstroTac Astro Tac 9600 Quantar APCO 25 Comparator T6507A" is in sale since Wednesday, October 5, 2016.This item is in the category "Business & Industrial\Facility Maintenance & Safety\Surveillance & Alarm Equipment\Two-Way Radios". The seller is "devous1" and is located in Lancaster, Ohio. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Qatar, Croatia, Bahamas.