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General Content

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What is Radio Spectrum?

Radio spectrum is the part of the electromagnetic spectrum ranging from 1 Hz to 3000 GHz (3 THz). Electromagnetic waves in this frequency range, called radio waves, have become widely used in modern technology, particularly in telecommunication.

The spectrum is divided into...

DOT Onboard Demographics, April FY 2017

This spreadsheet provides onboard statistics for April, FY 2017. Demographics are particularly useful to managers in the workforce planning process.  These data are also used by Congressional staffers and others who have an interest in the size and makeup of the federal workforce, and by...

Onboard Statistics, 2nd Quarter FY 2017

This spreadsheet provides onboard statistics for the second quarter of FY 2017. Demographics are particularly useful to managers in the workforce planning process.  These data are also used by Congressional staffers and others who have an interest in the size and makeup of the federal...

Promotions Statistics, 2nd Quarter FY 2017

This spreadsheet provides promotions statistics for the second quarter of FY 2017. Demographics are particularly useful to managers in the workforce planning process.  These data are also used by Congressional staffers and others who have an interest in the size and makeup of the federal...

Separations Statistics, 2nd Quarter FY 2017

This spreadsheet provides separations statistics for the second quarter of FY 2017. Demographics are particularly useful to managers in the workforce planning process.  These data are also used by Congressional staffers and others who have an interest in the size and makeup of the federal...

Hires Statistics, 2nd Quarter FY 2017

This spreadsheet provides hires statistics for the second quarter of FY 2017. Demographics are particularly useful to managers in the workforce planning process.  These data are also used by Congressional staffers and others who have an interest in the size and makeup of the federal...

What is Positioning, Navigation and Timing (PNT)?

PNT is a combination of three distinct, constituent capabilities:

Positioning, the ability to accurately and precisely determine one's location and orientation two-dimensionally (or three-dimensionally when required) referenced to a standard geodetic system (such as World...

2016 Winter Greeting

As federal employees we are making measurable differences simply by choosing and supporting choices to commute to work using mass transit.

Now, more than ever…

A well-functioning transportation system is critical to America’s economic future and to the quality of our lives....