VK5ZEA
Member
Hi Everybody,
I'm trying to get my head around some of the digital systems used in the professional comms sector. I'm going to ask some stupid questions.
P25 is quite easy to understand, Phase 1 and 2...I've had direct exposure to P25 and inter-manufacturer operability with conventional encrypted comms.
DMR (Digital Mobile Radio) - I believe Mototrbo is a DMR "variant". Are all DMR based radios compatible with each other? Can a Mototrbo radio talk to a Hytera? Can a Hytera radio use a Mototrbo repeater?
DMR Association | World Leading Professional Digital Mobile Radio
NXDN... of which Icom and Kenwood have radios... IDAS and Nexedge respectively. Are these two "variations" of NXDN compatible with each other?
NXDN(TM)-Forum SITE
dPMR - Icom are now promoting dPMR IDAS radios with a new FR5100/FR6100 repeaters too? Are they abandoning their NXDN IDAS customer base? A NXDN IDAS radio is not compatible with a dPMR IDAS radio...
Welcome to the dPMR Association, Narrowband 6.25Khz FDMA Digital Private Mobile Radio
Why do manufacturers of digital radios seems to "modify" a protocol/system and give them their own names? Shouldn't a DMR radio be a DMR radio? Is each manufacturers implementation of the standard different enough to stop interoperability between brands?
I find it confusing that NXDN has been "rebranded" by Icom and Kenwood... I know it's a sales thing... but why not promote compatibility?
*EDIT* I found this web page from 2010. It seems that NXDN and dPMR are joining forces... I presume this will eventually obsolete existing Icom and Kenwood NXDN radios.
http://www.icom.co.jp/world/news/100215_2/
Regards,
Michael.
VK5ZEA
I'm trying to get my head around some of the digital systems used in the professional comms sector. I'm going to ask some stupid questions.
P25 is quite easy to understand, Phase 1 and 2...I've had direct exposure to P25 and inter-manufacturer operability with conventional encrypted comms.
DMR (Digital Mobile Radio) - I believe Mototrbo is a DMR "variant". Are all DMR based radios compatible with each other? Can a Mototrbo radio talk to a Hytera? Can a Hytera radio use a Mototrbo repeater?
DMR Association | World Leading Professional Digital Mobile Radio
NXDN... of which Icom and Kenwood have radios... IDAS and Nexedge respectively. Are these two "variations" of NXDN compatible with each other?
NXDN(TM)-Forum SITE
dPMR - Icom are now promoting dPMR IDAS radios with a new FR5100/FR6100 repeaters too? Are they abandoning their NXDN IDAS customer base? A NXDN IDAS radio is not compatible with a dPMR IDAS radio...
Welcome to the dPMR Association, Narrowband 6.25Khz FDMA Digital Private Mobile Radio
Why do manufacturers of digital radios seems to "modify" a protocol/system and give them their own names? Shouldn't a DMR radio be a DMR radio? Is each manufacturers implementation of the standard different enough to stop interoperability between brands?
I find it confusing that NXDN has been "rebranded" by Icom and Kenwood... I know it's a sales thing... but why not promote compatibility?
*EDIT* I found this web page from 2010. It seems that NXDN and dPMR are joining forces... I presume this will eventually obsolete existing Icom and Kenwood NXDN radios.
http://www.icom.co.jp/world/news/100215_2/
Regards,
Michael.
VK5ZEA
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