SPIRIT Offers Reliable Data Communication with New HF Data Modem

10/22/2003 - SPIRIT (www.spiritdsp.com), the biggest eXpressDSP software house in Europe (Texas Instruments processor sales data 2001), has expanded its modem product line into the wireless field with a new HF data modem.

Since invention of radio by Markoni and Popov, HF is the most widely used band for long distance communication. HF communications are growing at the moment despite all-around implementation of cellular and satellite communication systems. HF radio is the only way of achieving global communication coverage without using expensive land and satellite infrastructure. HF communication still remains fail-safe means for communicating in high latitudes, including communication with mobile objects, e.g. for tracking airplanes on their routes.

Since SPIRIT specializes in developing mathematically intensive software for telecommunications, such important and complex technology field as HF communications couldn't be ignored. SPIRIT's HF modem provides reliable, fast and cost-effective data communication over HF radio links at rates from 75 up to 4800 bps, using standard serial-tone waveforms compliant to MIL-STD-188-110A. Suitable both for tactical and civil applications, it can be used in any area with poor or absent wireline telecom infrastructure such as maritime, long-haul or tactical digital communications.

The modem provides an outstanding level of performance and flexibility for data voice transmission applications. The design combines digital signal processing and forward-error-code correction technology to combat the anomalies of HF ionospheric propagation. Powerful equalization technique combined with smart tracking systems provide reliable operation on HF channels with high fade rates and large multipath delay spread. Using turbo principles allows to achieve ultimate performance and very fast tracking. SPIRIT's HF modem is a perfect choice for handheld and manpack radios with low stability and high P.A.E. of transmitter. It works in presence of big nonlinear distortions, withstands to interference and jams.

"It's worth to notice that besides reliability and global coverage, our HF solution is extremely cost-effective. All you need for successful development of your HF device is TI C5xx chip and SPIRIT software package integrated in it, which allows you to avoid a lot of accompanying hardware expenses", - says Andrew Sviridenko, founding CEO of SPIRIT. "By integrating this HF solution directly in your hardware you can make your HF device more cost-effective and reduce your time-to-market".

SPIRIT's MIL-STD-188-110A HF modem is available on TI C5xx and PC; porting to other RISC/DSP platforms is done on request.

SPIRIT (www.spiritdsp.com) is a prominent supplier of high-quality DSP software products, including VoIP, FoIP, speaker ID, speech processing, telephony, GPS, MP3, video compression, and more. SPIRIT's flexible licensing model includes cost efficient product customization to specific clients' needs. SPIRIT communication software works within hardware solutions from clients including Atmel, Furuno, JRC, NEC, Nortel Networks, Panasonic, Philips, Samsung, Siemens, Tadiran, Texas Instruments, and Toshiba among others. Since 2001, Texas Instruments is shipping SPIRIT's software bundled with TI C54CST processor.

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