Coast Guard rescue vessel Woodrush had left the Duluth port but it took 21 hours to arrive on scene. (Listen to more of these radio transmissions here.) The U.S.Systems built for low size, weight, and power consumption (SWaP) and industry standards like SOSA are dominating. RF and microwave designers take-on the cluttered spectrum.If you live near a major city, chances are good your local airport also uses UHF frequencies in addition to the usual civil air ones. For an example, see the Trunked Radio Systems (MD) article. Any data on military trunk systems is linked in the 'Trunked Radio Systems' page linked on each state's page in our Collaboration Gateway.
