Ctek maintains a list of links to external sources of information that are important to our products or applications. We cannot guarantee the timeliness or accuracy of the information found at these links.
CDMA Development Group - The global organization for CDMA wireless communications
CTIA - International Association for Wireless Telecommunications
FCC - US Government Agency responsible for certification, spectrum policy, tariffs, regs, etc.
GSM World - The global organization for GSM, UMTS, and WCDMA
Global SID Assignments - Courtesy Mountain Wireless
Ohm's Law Calculator - Useful for designing or adapting sensor installations