L/S-Band continous-mode spread-spectrum transceiver

com1918 block diagram


KEY FEATURES
  • L/S-band modem connect two IP networks over wireless, satellite or cable DSSS link. (for burst-mode see COM-1931)
    • Direct-Sequence Spread-Spectrum (DSSS) modulation. Programmable chip rate, up to 40 Mchips/s
    • Nominal frequency of operation: 950 – 2175 MHz for direct connection to external LNB or BUC. Customization to other frequency bands is possible.
    • Acquisition: < 1 second for most configuration cases.
    • Large frequency acquisition range: (chip_rate / 256)
    • Spreading codes: Gold, Maximal length, Barker, GPS C/A
    • Symbol rate: practical range from chip_rate/2047 to chip_rate/3. Maximum processing gain: 33 dB. Spreading factor: 3 to 2047
    • Convolutional or Turbo code error correction
    • Built-in IP router with gigabit Ethernet LAN port
    • Aluminum enclosure with rubberized end caps. L x W x H: 168.5mm x 138.96 mm x 40.98 mm.
    • Supply voltage: 18 - 36VDC with reverse voltage and surge protection. 5.6V min when no supplying external LNB power.
    • Frequency reference: internal TCXO or input for an external, higher-stability 10 MHz frequency reference
    • Built-in tools: PRBS-11 pseudo-random test sequence, BER tester, AWGN generator, internal loopback mode
    ComScope-enabled: key internal signals can be captured in real-time and displayed on the host computer

    COM-1918
    Other L/S-band transceivers
    COM-1902: L/S-band burst-mode PSK transceiver
    COM-1905: L/S-band continuous-mode PSK transceiver
    COM-1931: L/S-band burst-mode spreads-spectrum transceiver
    All
    Documentation
    Specifications (694 KB)
    Schematics
    Purchase Online
    $1250 COM-1918