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 4FSK4-Level Frequency Shift Keying
ACFAutoCorrelation Function 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 4FSK4-Level Frequency Shift Keying 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]