WitrynaThe Secode IMTS mobile telephone was the drawer unit shown below, with a rather large external signaling and supervisory unit in its own separate box, and a standard Secode "MJ" control head. As mentioned, very few were made, as the independents did not choose them in the end, other than a small number of "trial" units. http://www.wb6nvh.com/MTSfiles/Carphone4.htm
A brief history of 1G mobile communication technology
Witryna2 paź 2014 · Blue Box - IMTS "Improved Mobile Telephone Service" Modes - YouTube I added two additional modes that could be used to spoof the pre-cellular IMTS "Improved Mobile … The Improved Mobile Telephone Service (IMTS) was a pre-cellular VHF/UHF radio system which linked to the public telephone network. IMTS was the radiotelephone equivalent of land dial phone service. Introduced in 1964, it replaced Mobile Telephone Service (MTS) and improved on most MTS systems by offering direct-dial rather than connections through a live operator, and full … daily happiness blog
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Witryna21 maj 2015 · phone booth in the lobby. To call in, you'd dial 0, ask for the mobile operator in Dover NH, then ask the operator for JS8-3445. (The phone had a dial but my recollection is that they never... WitrynaParallel to Improved Mobile Telephone Service (IMTS) in the US until the rollout of cellular AMPS systems, a competing mobile telephone technology was called Radio … WitrynaMOTOROLA 1970's IMTS EQUIPMENT PULSAR I: In approximately 1971, Motorola introduced a new fully solid state VHF IMTS telephone called the "Pulsar," which replaced the 1963 vintage TLD-1100 and TLD-1220 "MJ" sets. The Pulsar was built in a housing which appears similar to the conventional Mocom 70 style daily happiness chemicals