Summation Research offers a variety of standard and custom board level modems and communications processing products for use in OEM telemetry and general communications applications. SRI’s products are typically used in Supervisory Control and Data Acquisition (SCADA), railroad telemetry and communications, and Automatic Vehicle Location (AVL), and Unmanned Aerial Vehicle (UAV) or Remotely Piloted Vehicle (RPV) applications. The engineering staff at SRI brings a wide range of experience to bear on solving unique communications needs.

GMSK Modems

Designed for integration with a variety of RF transceivers, the MD-4040 GMSK Digital Modem Module provides cost effective communications capability for licensed and non-licensed narrow-band data applications.

The MD-4040 utilizes advanced transmission processing and protocols resulting in a very reliable and flexible solution for SCADA networks, telemetry, data link transceivers, and other wireless data applications. The unit handles all of the data communications management tasks providing a robust, reliable link. Problems such as multi-path, fading, interference, intermodulation, and other issues that commonly corrupt links can be detected and transparently corrected with the powerful RF-LinkNet protocol.

The MD-4040 also provides sophisticated networking capabilities such as data broadcast and radio addressability. Each unit can also serve as a repeater, allowing wide coverage areas and mesh networking capabilities.

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For applications requiring simple modem capabilities Summation Research also supplies the MD-4030 GMSK modem module. This unit is ideal for point-to-point links not needing the advanced link management and data processing capabilities of the MD-4040.

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Advanced Signal Processing DSP/FPGA Solutions

The UCP-4000 Universal Communications Processor is a latest-generation Digital Signal Processing solution for high-speed, multi-function communications requirements. With fully programmable digital logic, the product can be utilized to solve a wide variety of communications applications, including encoding, modulation, demodulation, clock recovery, and data decoding/processing.

A set of off-the-shelf user-loadable software elements allows the as-delivered product to be configured for either a versatile encoding vector modulation system, or a multi-waveform demodulating/decoding processor. Modulation formats supported for either transmit or receive functions include:

.  Analog – PM, AM, or FM
.  Digital – PM, ASK, FSK, or PSK (B, Q, OQ, AQ, or UQ)
.  Complex Waveforms – PM/PSK, FM/FSK, AM/FSK/PM …

Analog bandwidths of up to 40 MHz and digital data rates from 50 bps to 20 Mbps are supported. Transmit processing supports spectral purity rivaling expensive analog solutions. Receive processing performance for typical waveforms is within 1 dB of theoretical.

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Custom Signal Processing Solutions

SRI board-level products can support custom processing algorithms, supporting such features as spread-spectrum, alternate coding algorithms, complex modulation formats, and so forth. SRI technical staff has the experience, knowledge base, and development tools required to address even the most unique and complex of end-user requirements.

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