Page 14 of the document says:
At this point in time Vertex Standard believes the C4FM (4-level FSK) FDMA or TDMA are the most suitable selections for Amateur radio applications. In early 2012, we will release a C4FM (4-level FSK) FDMA Handy-Talky and a Mobile transceiver into the Amateur radio market. After our initial introduction, we plan to introduce a C4FM (4-level FSK) TDMA (2 slots) or TDMA Handy and Mobile transceiver into the Amateur market.
This led to speculation that we would see a Yaesu DMR
or APCO 25
radio at the Dayton Hamvention. The topic was hotly debated in various online forums, with the prevailing theory being that it would be a DMR radio to play and compete with Motorola’s MOTOTRBO
™ radios. It now seems that the initial introduction is the FT-1D
, a dualband handheld that just does analog FM and a plain C4FM digital format (no DMR or APCO 25 protocol). This blog has the product brochure
for the FT-1D. (Click on “Page 1″ and “Page 2″ links.)
The general reaction from the ham radio community is WTF, over? I don’t know why anyone would buy a radio to use with digital C4FM modulation. This digital mode is incompatible with D-STAR, DMR and APCO 25…the most common digital formats on the VHF/UHF ham bands. The quote listed above indicates that there will be more coming from Yaesu later in the year, that includes TDMA. This could be DMR but who knows?
- 73, Bob K0NR