Terminal Doppler Weather Radar (TDWR) Site

 doppler radar, weather radar

FAA run Terminal Doppler Weather Radar (TDWR) Site, located just off of Samuels Mill Court, Leesburg, VA. TDWRs are Doppler weather radar systems strategically positioned near 47 major airports to detect wind shear and microbursts associated with thunder storms, to increase the safety of aircrafts landing and departing from airports.
TDWR frequencies (5.60-5.65 GHz are shared with Unlicensed National Information Infrastructure (UNII) band frequencies (5.47-5.725 GHz) which are used by many Wireless ISPs and other outdoor wireless network operators. As a result, it is essential that systems and policies are effective in mitigating interference issues. To comply with FCC rules, If you ARE within 22 miles of a TDWR, you are required to avoid any frequency within +/- 30 MHz of the frequency of the TDWR device.

Frequency: 5605 MHz
Terrain elevation: 361 ft MSL
Antenna: 113 ft above terrain