Digital Wireless Communication MODEM

CWC WW_ISMv1.0

Features

  • A pocket base station and multiservice communications device for IoT
  • Low data rate sub-1GHz multi-channel/user communications
    (50m...1,5km  - NLOS, up to 10km - LOS, 2,15dBi antennas)
  • High data rate 2.4GHz communications, relay data link
    (up to 30km - LOS, 15dBi antennas)

Parameters

Frequency ranges

WorldWide ISM:

  • 389-510 (434) MHz
  • 779-1020 (868) MHz
  • 2400-2483,5 MHz

Baseband/Bandwidth

125 / 250 / 500 / 1000 kHz

RF output power

-10…15 dBm (up to 25mW)

Maximum power of spectrum component

-26…0 dBm

Spreading factor

4096…16

Data rates

CWC Proprietary DSSS (MMBOK / CH-DSSS):

  • 1,9…112,88 kbps  (spreading factor 4096…16)

IEEE Std. 802.15.4g:

  • FSK2 – 50…400 kbps
  • OQPSK – 250…1000 kbps
  • OFDM – 50…2400 kbps 

Network capabilities

  • Up to 6 independent asynchronous links at one frequency;
  • Up to 16 dependent (led by the master) synchronous links at one frequency (optional);
  • Up to 256 devices for one PHY layer key.

UAV links options (optional)

  • Link tailored for MAVLink v1;
  • S.Bus signals receiving (16ch via UART).

Multiple access

CDMA/FDMA

Interfaces

  • USB: Up to 12Mbps
  • UART: 921.6 kbps (57.6...921.6 kbps optional)

Tx/Rx division

Time Division Duplex (Half-Duplex)

Encryption technique  

 

Polyalphabetic at the physical layer

(1024 bit key defines the transmission symbols)

Consumption power

35 / 150 / 220 / 270mA at 5V
(idle / RX.1 / RX.6 / TX)

CWC U/VHF 110-600

Features

  • Asynchronous receiving of spread spectrum signals, no need for external synchronization systems
  • Transmission via parallel encrypted channels, radically complicates cryptanalysis
  • Data rate 8...11 times faster than similar spread spectrum applications
  • Transmission aligned with the speech codec CELP 2400/4800 (Speex)
  • Simultaneous transmission and broadcast of 8x CELP4800 or 16x CELP2400 voice streams
  • Simultaneous operation with 16x modems, connections schedules are not needed
  • Advanced features of construction/deploying of MESH, Ad-Hoc networks
  • Simultaneous operation up to 16x systems with different encryption keys in the same operational area
  • Access methods:
    • Asynchronous CDMA with different access/encryption keys
    • Synchronous CDMA, CSMA / CD-CDMA access with a single access/encryption key

Parameters

Frequency range

110-600 MHz

Baseband

2 MHz

RF output power

-40…0 dBm

Maximum power of spectrum component

-56…-16 dBm

Spreading factor

2048/8192 (2х1024/4096)

Spread spectrum technique

Code Hopping  - Direct Sequence Spread Spectrum (CH-DSSS)

Channel coding/modulation

Multichannel М-ary Biorthogonal Keying

Data rate in one channel

7680/1920 (9600/2400) bps

Multiple access

CDMA/FDMA

Quantity of CDMA channels

16

Tx/Rx division

Time Division Duplex (Half-Duplex)

Encryption technique  

 

Polyalphabetic at the physical layer

(1024 bit key defines the transmission symbols)

Consumption power

0,8 Watt

CWC U/VHF 110-600 Extended

Image

Parameters

Frequency

433.92 MHz

Baseband

2 MHz

RF output power

-10…+30 dBm

Maximum power of spectrum component

-26…+14 dBm

Spreading factor

2048/8192 (2х1024/4096)

Spread spectrum technique

CH-DSSS

Channel coding/modulation

Multichannel М-ary Biorthogonal Keying

Data rate in one channel

7680/1920 (9600/2400) bps

Multiple access

CDMA/FDMA

Quantity of CDMA channels

16

Tx/Rx division

Time Division Duplex (Half-Duplex)

Encryption technique  

 

Polyalphabetic at the physical layer

(1024 bit key defines the transmission symbols)

Consumption power

5 Watt

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