Exclusive vs. Shared Channels
The issue of exclusive channels is the most critical item in the design and implementation of advanced radio systems. From a legal standpoint, all trunking formats in use today (except for SmartTrunk and Capacity Plus) requires the use of exclusive frequencies to...
Radio Interference From Multiple Users On The Same Channel
When one radio user is transmitting on a radio channel, another radio user can use the radio channel if they are in different areas where there is no coverage overlap. Each radio user can use the radio without any interference to the other radio user. What happens...
Methods of Data Transport
Different types of data require a different type of network implementation. The discussion in this article is based upon GPS data, but there are many other types of data that are sent over radio and cellular systems. Each type of data is handled best by one...
Signaling Methods for Radio Systems
Explore the evolution of radio signaling methods, from burst tones and CTCSS to advanced digital paging and remote control standards.
Controlling Antenna Site Interference
Antenna site interference is a problem that has plagued the Land Mobile Radio communications business since the inception of two-way radio. There are techniques for operating a clean antenna site so that each radio operates with little to no interference from each other at the site. When properly implemented, these techniques can also reduce or eliminate interference from other radio sites.