curious,
what is vdl tdma mode 3 type modulation..word is aircraft my use it for voice..
is it like the old am airband, you switch to a frequency and you ger ATF/TOWER is it siple to use???
thanks
VDL TDMA DIGITAL???
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VDL TDMA DIGITAL???
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Dan562
- Posts: 533
- Joined: Mon Aug 23, 2004 7:30 pm
- What radios do you own?: Kenwood, Yaesu, ICOM, Motorola
Here's an article published back on September 1, 2000, regarding VDL TDMA Mode 3 Digital Links for aviation use. TDMA uses Time Slots for Voice and/or Data and the British Standard is 0 to 23 which equals 24 Total Time Slots.
Referencing /\/\ iDEN more commonly knowm as Nextel, the Direct Connect Dispatch Voice Traffic uses 2 TS and the Telephone Interconnect similar to Cellular Telephone Calls uses 3 TS which provides better recovered voice audio. The use of more Time Slots allows the digital signaling to handle a faster traffic rate but limits the access of users on a given RF Channel.
http://www.aviationtoday.com/cgi/av/sho ... lobal1.htm
Referencing /\/\ iDEN more commonly knowm as Nextel, the Direct Connect Dispatch Voice Traffic uses 2 TS and the Telephone Interconnect similar to Cellular Telephone Calls uses 3 TS which provides better recovered voice audio. The use of more Time Slots allows the digital signaling to handle a faster traffic rate but limits the access of users on a given RF Channel.
http://www.aviationtoday.com/cgi/av/sho ... lobal1.htm