Think of amateur radio, or ham radio, as an early version of the Internet. Using a worldwide network of radio towers, antennas and transceivers, amateur radio enthusiasts are able to communicate with fellow hobbyists around the globe, sometimes by voice and sometimes by Morse code. Amateur radio is limited by the distance that radio waves can travel. Every 11 years, for example, there's a peak in the number of sunspots produced by the sun, which increases the intensity of something called ionospheric propagation [source: International Solar Terrestrial Physics Program ].
Barry is expected to reach hurricane strength as it makes landfall in Southern Louisiana and spreads those conditions across Southern Mississippi and surrounding areas. We appreciate any and all support from Amateur Operators in the affected area or Amateur Operators with relays into the affected area. WX4NHC will also be on other frequencies and modes as outlined in their announcement below:. This event is good practice for Ham Radio Operators world-wide as well as NWS Staff to become familiar with Amateur Radio communications available during times of severe weather. Due to space and equipment limitations, we will have 2 operators per shift, we cannot be on all frequencies or on every mode at the same time. Coordinator www.
To the user it can be implemented like any other radio network. With RoIP, at least one node of a network is a radio or a radio with an IP interface device connected via IP to other nodes in the radio network. The other nodes can be two-way radios, but could also be dispatch consoles either traditional hardware or modern software on a PC , POTS telephones, softphone applications running on a computer such as Skype phone , PDA , smartphone , or some other communications device accessible over IP. RoIP can be deployed over private networks as well as the public Internet.
I have separated my VOIP and digital voice pages. Therefore some things have moved. Most present day government communication centers that use analog systems happen to have a VOIP based dispatch console. Many remote sites are tied together using over fiber.