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Second Wind Offers CDMA Cellular Remote Collection of Wind Resource
Assessment Data for its Nomad 2 Data Logger
 21
July 2004 — Second Wind Inc., an award winning provider of wind data software and hardware solutions, announced today the availability of CDMA cellular remote data collection for its Nomad 2 wind data logger. CDMA is the most common digital cellular network in North America. With a CDMA modem installed in the Nomad 2 data logger, a user can call in to the logger and view live data at the site, download data and site information, and change data collection parameters.
The CDMA network is quickly expanding to more rural locations where only AMPS (analog) service was previously available. Because of the CDMA modem's lower power requirements and faster transfer rates, the data transfer process is much more efficient. CDMA is also less expensive than AMPS because less airtime is being used. AMPS services are being reduced in locations where CDMA is coming online, and data logger users report that it is becoming difficult to even obtain an AMPS account.
"The CDMA option for the Nomad 2 makes setting up remote communications much easier for our customers," said Walter Sass, president of Second Wind Inc. "CDMA technology is an efficient and relatively inexpensive method of collecting wind resource assessment data and ensuring that the sensors on the meteorological tower are still functioning properly, preventing significant data loss."
With a CDMA modem, data can be e-mailed from the Nomad 2 data logger without the need for a subscription ISP account, using QNC (Quick Network Connect) and the Second Wind mail server. QNC is a standard feature of CDMA service, and allows the modem to connect directly to the Internet, instead of dialing an independent Internet Service Provider (ISP).
CDMA (Code Division Multiple Access) digital cellular networks are available in the Americas, Asia, and Australia and operate in the 850 and 1900 MHz frequencies. Data transmission rates are up to 14,400 bits per second, 5 to 10 times faster than the AMPS (analog) network; downloading a typical data file from the Nomad 2 data logger only takes a couple of minutes. The CDMA modem is a low-power device and can be left on to receive calls for 24 hours a day with a solar charging system.
The CDMA Package from Second Wind Inc. costs $970 USD and includes a CDMA modem, 850/1900 MHz antenna, 5 Watt solar panel, solar charge regulator, and 12V 7.2 Amp-hour rechargeable battery. The modem, regulator, and battery come preinstalled, and the antenna and solar panel are easily mounted onto the Nomad 2 enclosure. All items are also available singly from Second Wind Inc. Additional accessories are supplied by Second Wind Inc. Discounts are available for large volumes.
About Second Wind Inc.
Founded in 1980, Second Wind Inc. advances the use of wind data to make wind energy more profitable for owners, painless for operators and practical for consumers. Key products include: Nomad® data logger and tower systems; Triton® sodar systems; SkyServe® satellite wind data service and Phaser® power transducers. Second Wind is headquartered in Somerville, Massachusetts, USA, and is privately held. For more information on the Triton sonic wind profiler or SkyServe satellite wind data service and Second Wind's other products, visit www.secondwind.com.
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