Receiver desense testing by Karl Shoemaker, AK2O
Due to the inability of certain people to communicate properly and understand all the aspects of site testing this page was created to read, compare notes and build on for the benefit of all. Human communication, comprehension and understanding problems is beyond the scope of this document, however the reader should keep these problems in mind when dealing with site issues and interfacing with other companies and government Agencies. Misunderstandings, bogus readings, log entries, technician and management diagnostics and plan of actions for problem solving are commonly mis-directed with considerable time and expense wasted in the wrong direction of efforts. This can lead to the general desensitation (pun intended) and poor attitude of the workforce in most any private company or government in the technical (repair) field around this country. Fortunately, there still is a handful of technicians that care to understand what the problem is and the proper way to solve, or at least, reduce the symptoms to an acceptable figure. If you are reading this it's most like you are in one of the latter. This is a good thing.
2. It makes you part of a worldwide community
3. The opportunity to help neighbors by providing public service and emergency communications
4. Some of the nicest people you'll ever meet
5. Some of the smartest people you'll ever meet
6. Some of the most interesting people you'll ever meet
7. Some of the most generous people you'll ever meet (along with some of the cheapest!)
8. Lifelong friendships
9. Friends around the world (including those you haven't met yet)
10. The opportunity to go interesting places you might not otherwise go to
What is a Repeater?
In the world of modern communication there is an ever increasing need for providing higher outreach. The traditional portable radios offer limited coverage area. However, a dedicated transceiver can help us achieve the requisite coverage.
A repeater is essentially a communication device which acts as a link between two radio operators to cover a large area. If you need a large coverage area like your 50,000 acre ranch, city, county or even an entire state, a repeater system comes in handy.
How it Works?
It is a two-way radio frequency communication system which receives a frequency from portable two-way radios, and re-transmits it at another frequency in real-time, albeit at a higher wattage than typical portable radios. This mechanism allows repeaters to broadcast to a much wider reception spectrum. Since it is capable of both transmitting and receiving at the same time, it is also called a ‘Transceiver’.
ROIP Radio over Internet Protocol (RoIP) is a two-way communication method which involves trans-reception of radio communication signals over internet protocol (IP). Cost effective and power efficient, RoIP essentially leverages the same communication principles as that of VoIP but requires...