Integrated Digital Enhanced Network (iDEN)

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Integrated Digital Enhanced Network (iDEN)
IDEN image.jpg
Frequencies 806 MHzMegaHertz (MHz) 10^6 Hz806,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
806,000 kHzKiloHertz (kHz) 10^3 Hz
,824 MHzMegaHertz (MHz) 10^6 Hz824,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
824,000 kHzKiloHertz (kHz) 10^3 Hz
,851 MHzMegaHertz (MHz) 10^6 Hz851,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
851,000 kHzKiloHertz (kHz) 10^3 Hz
,869 MHzMegaHertz (MHz) 10^6 Hz869,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
869,000 kHzKiloHertz (kHz) 10^3 Hz
806,000 kHzKiloHertz (kHz) 10^3 Hz
806 MHzMegaHertz (MHz) 10^6 Hz
869,000 kHzKiloHertz (kHz) 10^3 Hz
869 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 806 MHzMegaHertz (MHz) 10^6 Hz806,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
806,000 kHzKiloHertz (kHz) 10^3 Hz
- 869 MHzMegaHertz (MHz) 10^6 Hz869,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
869,000 kHzKiloHertz (kHz) 10^3 Hz
Mode NFMNarrowband Frequency Modulation
Modulation QAMQuadrature Amplitude Modulation,TDMATime Division Multiple Access
ACFAutoCorrelation Function
Bandwidth 18.5 kHzKiloHertz (kHz) 10^3 Hz18,500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.0185 MHzMegaHertz (MHz) 10^6 Hz
18.5 kHzKiloHertz (kHz) 10^3 Hz
0.0185 MHzMegaHertz (MHz) 10^6 Hz
18.5 kHzKiloHertz (kHz) 10^3 Hz
0.0185 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description iDEN is a TDMATime Division Multiple Access-based digital wireless standard developed by Motorola. It is a type of trunked radio with cellular phone benefits.
I/Q Raw Recording Download file
Audio Sample
iDEN is a TDMATime Division Multiple Access-based digital wireless standard designed to work in special frequencies originally designated for analog Specialized Mobile Radio (SMR) networks. It is a type of trunked radio with cellular phone benefits. iDEN was invented by Motorola, who remains the primary manufacturer of iDEN devices. iDEN is considered to be a ESMR (Enhanced Specialized Mobile Radio) network. iDEN uses TDMATime Division Multiple Access with QAMQuadrature Amplitude Modulation Modulation for data.

The iDEN system uses M16-QAMQuadrature Amplitude Modulation modulation, a Motorola proprietary digital format utilizing M16-QAMQuadrature Amplitude Modulation modulation on four subcarriers. This format involves both amplitude and phase modulation.

Each main signal is divided into 4 sub-channels. Each sub-channel is about 4.5 kHzKiloHertz (kHz) 10^3 Hz wide. The entire channel's operating bandwidth is 25kHz, although the signal itself takes only 18.5 kHzKiloHertz (kHz) 10^3 Hz.

Samples[edit]

Here are each of the subchannels (From left to right):

Channel 1 Channel 2
Channel 3 Channel 4

Each is slightly different.


Additional Samples[edit]

USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) full signal:

USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) single channel:

Frequencies[edit]

In the United States, iDEN is allocated 806 MHzMegaHertz (MHz) 10^6 Hz - 824 MHzMegaHertz (MHz) 10^6 Hz and 851 MHzMegaHertz (MHz) 10^6 Hz - 869 MHzMegaHertz (MHz) 10^6 Hz.

Consolidated Edison in New York City uses iDEN for trunked radio. Their frequencies can be found here.

Additional Links[edit]

Additional Images[edit]