GPS Outfitters GPS Reradiation Presentation IRAC 10/28/2005

GPS Outfitters Exclusive Authorized Distributor for San Jose Navigation Reradiation Products SJNs’ appointed agent for all reradiation and regulation matters in the US Supplier of aftermarket GPS Accessories

RA46 Vortech Overview 3 part, low power L-1 GPS reradiator External amplified antenna Power/RF Cable Sealed, non-adjustable RF Transmitter

RA46 Vortech Application Designed to provide GPS signals in environments where a clear view of the sky is not possible Low Power Level does not compete with free atmosphere GPS signal Designed for maximum effective range of 5 meters

RA46 Vortech GPS Re-Radiator RF Parameters Re-radiator ant. 3m from horn ant. (EMCO 3115, G = 26 dB), cable connected (1.9 dB loss) to HP 8546A EMI receiver (50 Ohm input impedance). –Signal: 1.1 dBμV, or dBm input to EMI receiver –Accounting horn gain, cable loss & 3m path attenuation RA46 EIRP = dBm RA46 power at 30 m = -150 dBm, 10 dB below new regulation limits

RA46 is an Ultra Low Power Device RA46 EIRP of dBm is equivalent to 0.01 nano-milli-Watts. This power level is a factor of 100 billion below the 1 milli-Watt power level where transmitters are candidates for non-licensed applications. RA46 typically operates within less than one meter of the GPS receiver being assisted RA46 is a non-threat to any nearby GPS receivers or other communications devices

RA46 Very Low Power Section states –Spurious Emissions Only in 1.44 to 1.62 GHz spectrum (GPS L1 region) at 500 μV/m at 3 m equivalent to -71 dBm. RA46 EIRP of dBm is 39 dB below the spurious emissions limit

Worst-Case Interference Issues Sealed, non-adjustable transmitter with limited range and power level below acceptable spurious emission limits Potential for multipath confusion at GPS receiver, most have algorithms to correct Result would likely only be accuracy error of less than 30 feet

Safety Benefits Allows GPS equipment to stay locked on inside a vehicle, protecting military users inside APCs, Tanks, and Humvees Prevents vehicles from getting lost due to poor GPS performance in urban areas or lack of sky view Improves response time to emergency situations and keeps tracking information current and correct

Commerce Benefits Allows users to use existing GPS equipment without external antenna capability instead of more expensive models Cost efficient alternative to ‘smart antenna’ solutions in PC applications Allows use of existing GPS board already purchased

Convenience Benefits Temporary or fixed installation Wireless transmission to GPS device No Power or RF cabling to existing GPS device allows quick removal and continuous satellite lock when leaving vehicle No need to add or configure USB or Serial GPS hardware in PC applications

Regulatory Issues RA 46 Vortech power level is low enough to fall within current guidelines, but does operate on restricted frequency Request an Equipment Waiver based on tested and approved power level to preserve existing restriction guidelines and limit/control usage to government and commercial entities Registration requirement/experimental license for all purchasers to contact users in the future

Equipment Waiver GPS Outfitters will submit samples to FCC or Certified Test Lab to confirm power and bandwidth specifications GPS Outfitters will limit sales to military, government, and commercial customers and restrict sales to general public and maintain customer database Waiver is revocable upon determination of harmful interference from future RF devices