NX-800 UHF Digital & FM Mobile Radio - NEXEDGE KENWOOD
Showing posts with label NXDN NexEdge WorldWide Amateur Radio Talkgroups. Show all posts
Showing posts with label NXDN NexEdge WorldWide Amateur Radio Talkgroups. Show all posts
NXDN: A brief overview
NXDN is a very narrowband protocol employing 6.25/12.5 KHz FDMA technology
(It is generally accepted that 12.5 kHz channel spacing is narrowband as per the FCC mandate.)
(More on this later in The history of NXDN™).
NXDN™ is the result of a joint technical alliance between Icom Incorporated and JVC KENWOOD Corporation. At the beginning, the main goals of this collaboration were to provide a low complexity digital two-way radio protocol that satisfied the FCC narrowbanding mandate at the initially proposed deadline of 2005, be a future-proof protocol that would still be viable even when 12.5 kHz spectrum became full and to offer an alternative “de-facto” standard to the Land Mobile Radio (LMR) industry that allowed the development of digital radio products without the
NXDN™ is the result of a joint technical alliance between Icom Incorporated and JVC KENWOOD Corporation. At the beginning, the main goals of this collaboration were to provide a low complexity digital two-way radio protocol that satisfied the FCC narrowbanding mandate at the initially proposed deadline of 2005, be a future-proof protocol that would still be viable even when 12.5 kHz spectrum became full and to offer an alternative “de-facto” standard to the Land Mobile Radio (LMR) industry that allowed the development of digital radio products without the
Advantages of DMR versus dPMR / NXDN / NEXEDGE
Advantages of DMR versus dPMR / NXDN / NEXEDGE
What is dPMR?
- dPMR is an ETSI standardised minimal cost digital radio solution.
- dPMR standards (TS102 490 and TS102 658) were published in 2007 – after DMR. There are 2 tiers specified – Tier 2, modes 2 & 3 are relevant to professional users.
- dPMR operates in 6.25kHz channels. Tier2, Mode2 is conventional; Tier2, Mode3 is trunked.
- NXDN is based on dPMR but is incompatible with it. NexEdge is also derived from dPMR.
What is DMR ?
- DMR is an ETSI standardized low cost, low complexity, professional digital radio solution designed to migrate analog FM radio users to digital.
- DMR standards (ETSI TS102 361) were published in 2005. There are 3 ‘Tiers’ specified – Tier II and Tier III are of interest to professional users.
Worldwide NXDN Network NET Schedule
Worldwide NXDN Network NET Schedule
Talkgroup# 65000
Day of the month : *** Weekly ***
Day of the week : Saturday
UTC Time :: 17:00
Eastern : 12:00
Mountain time : 10:00
Pacific time : 9:00
NXDN NexEdge Toronto,Ontario CANADA has NO network connect. About 5 local users are now active.
Talkgroup# 65000
Day of the month : *** Weekly ***
Day of the week : Saturday
UTC Time :: 17:00
Eastern : 12:00
Mountain time : 10:00
Pacific time : 9:00
NXDN NexEdge Toronto,Ontario CANADA has NO network connect. About 5 local users are now active.
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