Signaling Methods for Radio Systems
There are many different signaling methods for different types of radio systems that have been developed over the years. Each signaling system has its advantages which make the system work well for its designed purpose and has disadvantages which make the...
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.
Conventional Radio
Land mobile radio (LMR) started in the 1930s and has made a lot of progress since that time. Originally all LMR radios were one-way radios, because they could only talk in one direction. The one-way radios would receive a message in the vehicle where a receiver was...
LTR Trunking
A trunked radio system, as defined by the FCC is, “A method of operation in which a number of radio frequency channel pairs are assigned to mobiles and base stations in the system for use as a trunked group.” Trunking is the pooling of radio channels where all users...