The former head of the New York State Police aviation unit has been charged with grand larceny for selling a state-owned Garmin 496 GPS to a fellow trooper. Retired Maj. Robert Kreppein is accused of selling the unit for $1,600 in 2008. Kreppein retired in July after media reports surfaced that he was being investigated for allegedly approving civilian flights on state police helicopters.
The FAA issued an amended supplemental type certificate for the VoiceFlight Systems VFS101, adding new units to the company’s approvals for voice command of Garmin GNS navigators. The amendment adds the GNS430W and 530W, allowing pilots to use speech command instead of knobs to control a wider variety of Garmin navigators.
The GPS industry’s failure to comply with the Department of Defense’s receiver filtering standards is the root cause of potential interference issues involving LightSquared’s proposed broadband wireless network, the company has told the FCC.
Low-powered incoming GPS signals are allocated 1559-1610 MHz in the L-Band radio spectrum. The neighboring spectrum–from 1525-1559 Mhz–is allocated to other, equally low-powered, incoming satellite signals, such as Sky Terra’s. GPS receivers are open to signals above the blue line shown, but filter out signals below it, and require modification to accept Glonass.
Accord Technology’s NexNav mini GPS Waas Class Beta-1 sensor has been recognized by the FAA as meeting requirements outlined in Advisory Circular 20-165. The 20-165 requirements cover accuracy and other parameters that GPS sensors will need to meet standards for ADS-B operations. The FAA will require mandatory equipage with ADS-B out systems beginning in 2020.
Avidyne signaled that it is joining the trend toward avionics with touchscreen controls by launching its IFD540 FMS/GPS/navcom system at EAA Airventure in Oshkosh, Wis., yesterday.
With fresh evidence that LightSquared’s proposed wireless broadband network will cause widespread interference to GPS signal reception, principals of the industry Coalition to Save Our GPS went on the offensive today in a media conference call.
The ongoing controversy about whether LightSquared’s proposed network of 40,000 powerful ground-based stations transmitting high-speed Internet across the nation would interfere with adjacent GPS frequencies became more intense last month.
Following extensive reports of GPS interference, LightSquared announced last week that it would vacate its L-Band frequency adjacent to GPS and move to one further away to greatly reduce, but not eliminate, interference with satnav signals.
A study released by the Save Our GPS Coalition warns of “serious repercussions for the U.S. economy” if LightSquared is allowed to broadcast 4G broadband signals that cause interference with GPS. According to the study, more than 3.3 million U.S.