Digital Private Mobile Radio (dPMR)

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Digital Private Mobile Radio (dPMR)
DPMR.jpg
Frequencies 446.1 MHzMegaHertz (MHz) 10^6 Hz446,100,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
446,100 kHzKiloHertz (kHz) 10^3 Hz
,446.2 MHzMegaHertz (MHz) 10^6 Hz446,200,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
446,200 kHzKiloHertz (kHz) 10^3 Hz
,149.01875 MHzMegaHertz (MHz) 10^6 Hz149,018,750 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
149,018.75 kHzKiloHertz (kHz) 10^3 Hz
,149.11875 MHzMegaHertz (MHz) 10^6 Hz149,118,750 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
149,118.75 kHzKiloHertz (kHz) 10^3 Hz
149,018.75 kHzKiloHertz (kHz) 10^3 Hz
149.019 MHzMegaHertz (MHz) 10^6 Hz
446,200 kHzKiloHertz (kHz) 10^3 Hz
446.2 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 149.019 MHzMegaHertz (MHz) 10^6 Hz149,018,750 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
149,018.75 kHzKiloHertz (kHz) 10^3 Hz
- 446.2 MHzMegaHertz (MHz) 10^6 Hz446,200,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
446,200 kHzKiloHertz (kHz) 10^3 Hz
Mode NFMNarrowband Frequency Modulation
Modulation 4FSK
ACF Frame: 80 msmilliseconds (.001 of a second). Superframe: 320 msmilliseconds (.001 of a second)
Bandwidth 6.25 kHzKiloHertz (kHz) 10^3 Hz6,250 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.00625 MHzMegaHertz (MHz) 10^6 Hz
6.25 kHzKiloHertz (kHz) 10^3 Hz
0.00625 MHzMegaHertz (MHz) 10^6 Hz
6.25 kHzKiloHertz (kHz) 10^3 Hz
0.00625 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description dPMR is an open, non-proprietary trunked radio standard developed by ETSIEuropean Telecommunications Standards Institute. An independent, not-for-profit, standardization organization in the telecommunications industry in Europe, developing global telecommunications standards., published under ETSIEuropean Telecommunications Standards Institute. An independent, not-for-profit, standardization organization in the telecommunications industry in Europe, developing global telecommunications standards. TS 102 658. Supports both data and digital voice transmission.
I/Q Raw Recording Download file
Audio Sample
dPMR is an open, non-proprietary trunked radio standard developed by ETSIEuropean Telecommunications Standards Institute. An independent, not-for-profit, standardization organization in the telecommunications industry in Europe, developing global telecommunications standards., published under ETSIEuropean Telecommunications Standards Institute. An independent, not-for-profit, standardization organization in the telecommunications industry in Europe, developing global telecommunications standards. TS 102 658. Supports both data and digital voice transmission.


Characteristics[edit]

dPMR uses FDMAFrequency Division Multiple Access of 6.25 kHzKiloHertz (kHz) 10^3 Hz bandwidth with a raw data rate of 4800 bpsBits per second (bps) (user data rate: 3600 bpsBits per second (bps)). dPMR uses 4FSK at 2400 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.. The dibits are mapped to +/-1050 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). and +/-350 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). from the center frequency.

Because the emission mask is so tight, two 6.25 kHzKiloHertz (kHz) 10^3 Hz dPMR signals can be used next to each other within a 12.5 kHzKiloHertz (kHz) 10^3 Hz channel without causing interference to each other or adjacent channels


Frequencies[edit]

dPMR446 radios are licence-free products for use in the 446.1–446.2 MHzMegaHertz (MHz) 10^6 Hz band within Europe.


dPMR446 Channel Frequency (MHzMegaHertz (MHz) 10^6 Hz)
1 446.103125
2 446.109375
3 446.115625
4 446.121875
5 446.128125
6 446.134375
7 446.140625
8 446.146875
9 446.153125
10 446.159375
11 446.165625
12 446.171875
13 446.178125
14 446.184375
15 446.190625
16 446.196875

Decoding Software[edit]

Additional Links[edit]

Additional Images[edit]