SP-2.4 2.4 GHz. Spread Spectrum Modem

Data Sheets

 

The SP-2.4 is a 2.4 GHz frequency-hopping spread-spectrum communications transceiver. Systems supporting serial communication can now use the SP-2.4 for reliable wireless point to point communication over distances of 20 miles and further. 

A pair of SP-2.4s provides a practical and reliable alternative to using traditional analog phone-line modems or "null-modem" serial cable (RS-232) connections for data communications between serial communications equipment. Moreover, wireless data communications using the SP-2.4 means you will benefit from: greater flexibility and freedom to relocate serial communications equipment; reduced cabling hassles; eliminated requirement for access to wire-based transfer media such as telephone lines; no ongoing access fees; and, the ability to communicate through walls, floors and many other obstacles. 

Applications: SCADA ,Telemetry, Vehicle Data/Tracking ,Traffic Control,

Utilities/MeteringDisplay Signs,Many More

 

The SP-2.4's versatility makes it the ideal solution for applications ranging from office-productivity to industrial data acquisition. The SP-2.4 is optimized for effective point-to-point communication, while also providing basic point-to-multipoint capability.  For most point-to-multipoint applications, the feature-rich SP-2.4 is the preferable choice

 

  • Transmission within a public license-exempt band of the radio spectrum (this means that the SP-2.4 can be used without access fees such as those incurred by cellular airtime) 
  • DB9 RS-232 serial I/O data port with hardware flow control (allowing the SP-2.4 to interface with virtually any communications device with an asynchronous RS-232 port such as a computer) 
  • Supports point-to-point and point-to-multipoint operation with user-configurable addressing 
  • User-configurable encryption key maximizes security and privacy of communications 
  • Twenty different user-selectable pseudo-random hopping patterns to offer the possibility of separately operating multiple networks while providing security, reliability and high tolerance to interference 
  • Built-in CRC-16 error detection and auto re-transmit to provide accurate and reliable data 
  • Ordering options for the SP-2.4 include a user-friendly terminal interface; or, an industry-standard AT command line interface 
  • Year 2000 compliant 
  • FCC (Federal Communications Commission) and IC (Industry Canada) approved
  • Used Internationally as a licensed free radio
  Technical Specifications
Data Interface  Asynchronous RS-232, 9-pin female D-sub
Signals  Sig. Gnd, TX, RX, DCD, DSR, DTR, RTS, CTS
User Interface  Terminal interface or AT command line interface
Bandwidth/Data Rate  2400 - 115,200 bps, uncompressed half-duplex 
Communications Range  22 miles line-of-sight or more
Memory  Non-volatile configuration memory
Operating Modes  Point-to-Point, Point-to-Multipoint
Power Requirements  9-30 VDC, 1 Amp
Power Consumption  490 mA (Max) at 1W transmit, 200 mA receive (12VDc input) 
Frequency   (North American Version) 2.400 - 2.4835 GHz
System Gain  135 dB
Sensitivity  -105 dBm
Output Power  1mW, 10mW, 100mW, 1W (user-configurable)
Spreading Code  Frequency Hopping
Hopping Patterns  45 pseudo-random, user selectable
Error Detection  CRC-16 with auto-retransmit
Enclosure Material  Milled aluminum, black baked powder coat finish
Dimensions (WxDxH)  Encl: 3.72" x 4.25" x 1.72" (95 x 108 x 44mm)
Antenna Connector  Reverse gender TNC
Weight  Approx. 420 grams
Operating Environment  Temperature: -40 to +65°C; Humidity: 5 to 95% non-condensing
Approvals  FCC, IC