How to Create A Professional RF Coverage Map with Radio Mobile Online Ever wondered how to visualize the RF coverage of a potential repeater site or the simplex range from your home station? Whether you’re testing a new antenna setup, planning a repeater installation, or simply curious about your station’s …
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We here at VA3XPR receive messages from hams all over the world and we greatly appreciate all of your feedback and stories relating to this wonderful hobby we call ham radio. Recently, we received a message from John Yaldwyn, ZL4JY of Waikanae, New Zealand regarding their impressive DMR range tests …
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The Motorola SL300 is one of the latest additions to Motorola’s MOTOTRBO line of DMR radios. This unit is slim and light weight, making it ultraportable and a great shirt pocket radio for the ham that only needs a limited number of channels and limited battery life or low …
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On October 29th, ham radio DMR reached an important milestone by adding its 10,000th user ID, making it one of the fastest growing digital modes within the ham radio community. DMR, which is short for Digital Mobile Radio, is a published standard for digital voice communications by the the European …
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So what is the maximum range that one can achieve with DMR? There has been much discussion about this on the on-line forums, since there is a physical limit as to how far two DMR stations can communicate with one another, given that DMR is based upon the Time Division …
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With competition heating up in the DMR market, RCA removes the covers from its new PRODIGI™ line of value priced DMR radios, featuring a weatherproof design and an industry leading 4-year warranty. On July 30th, RCA Communication Systems announced the launch of its new PRODIGI™ line of value priced DMR …
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Interested in learning more about DMR, but would like to talk to someone first? Have a new DMR radio and want to learn more about using it? Then join us for a coffee (or a cola) and lots of DMR conversation during DMR Newbies Night! We’ll have lots of DMR …
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On June 9th, the US Federal Communications Commission, commonly known as the FCC, officially approved the use of Time Division Multiple Access (TDMA), the modulation type used by Digital Mobile Radio (DMR), for ham radio use. In FCC Decision FCC 14-74 issued on June 9, 2014, the FCC outlined its …
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Saturday May 18th was a joyous day for several hams that visited the DMR-MARC booth at Dayton Hamvention 2014, as they each walked away with a brand new DMR radio. Visitors to the DMR-MARC booth were invited to enter the draw for four Motorola MOTOTRBO CM300d and CM200d mobile DMR …
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On April 18th, DMR-MARC, announced the launch of a new DMR development environment called the “DMR Sandbox” for anyone wishing to develop new features or applications specifically for ham radio DMR use. This is an important step for DMR-MARC and the ham radio DMR community as a whole, as it …
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VA3XPR Exploring the World of Digital Ham Radio