Documentation

Squared_Modem. Evaluation kit

Additional products

• Squared_Link. SDR platform

Software

• SDR_Surfer. Software

Squared_Modem. Evaluation kit

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Overview

Evaluation kit includes Squared_Link, RF board and motherboard in mezzanine. It can be used as standalone solution.

Features

• Duplexing mode: TDD.
• Bandwidth: 1-20 MHz (smoothly variable).
• Modulation: BPSK; QPSK; 8QAM; 16QAM; 64QAM; 256QAM.
• FEC: LDPC.
• Maintaining coding rates: 1/2; 2/3; 3/4; 5/6.
• Spread spectrum mode features:
• maximal spreading factor: any even number in range from 2 to 106;
• SNR (BER=10^-6, spreading factor 106): -17 dB;
• maximal signal search duration: 1 sec.
• MIMO features:
• number of antennas: 2;
• working modes: SISO, SIMO, MISO, MIMO;
• space time code in MISO and MIMO modes: Alamouti code.
• Carrier frequency range: 1910-2500 MHz.
• Maximal TX output power:
• normal mode: +16.5 dBm;
• low power mode: +14.5 dBm.
• RX sensitivity depends on bandwidth, modulation, FEC rate and LNA performance (see Squared_Modem. Brief description).
• Information bandwidth depends on bandwidth, modulation and FEC rate (see Squared_Modem. Brief description).
• Interfaces:
• universal: Ethernet 100 BASE-T;
• control: USB 2.0;
• debug: UART, JTAG (internal connectors of motherbaord).
• Connectors:
• Ethernet RJ45;
• USB micro-B;
• antenna connectors 2xSMA;
• power connector: barrel type (internal diameter 2 mm, external diameter 5.5 mm).
• Power: 7-15 V.
• Available hardware versions:
• 5CEBA5 FPGA (only SISO mode with bandwidth up to 12 MHz);
• 5CEBA7 FPGA (SISO, SIMO, MISO);
• 5CEBA9 FPGA (SISO, SIMO, MISO, MIMO).
• Power consumption (bandwidth 12 MHz, 5CEBA7 FPGA):
• full TX: 3.0 W (1TX); 4.5 W (2TX); 2.3 W (1TX, low power); 3.1 W (2TX, low power);
• full RX: 2.3 W (1RX); 2.7 W (2RX).
• Physical dimensions: 88x63.5x30 mm.