Naval Air Station Patuxent River (NHK) St. Mary's County (MD)

General Information

• Global Security.org-Patuxent River
• US Naval Test Pilot School About USNTPS
  • About USNTPS History

Frequencies

NAS PATUXENT RIVER (KNHK) AIR TRAFFIC CONTROL

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
120.05000	APPROACH		03/19/07
120.60000	GROUND		03/19/07
121.00000	APPROACH/DEPARTURE CONTROL		03/19/07
123.70000	TOWER		03/19/07
127.95000	APPROACH		03/19/07
133.90000	WASHINGTON CENTER		03/19/07
135.02500	APPROACH		03/19/07
135.20000	CLEARANCE DELIVERY		03/19/07
250.300000	APPROACH/DEPARTURE CONTROL		03/19/07
250.850000	APPROACH		03/19/07
276.200000	ATIS		03/19/07
281.400000	WASHINGTON CENTER		03/19/07
281.800000	APPROACH		03/19/07
301.2000000	APPROACH		03/19/07
314.000000	APPROACH		03/19/07
318.800000	APPROACH		03/19/07
336.400000	GROUND		03/19/07
340.200000	TOWER		03/19/07
343.650000	TOWER		03/19/07
348.000000	APPROACH		03/19/07
356.200000	METRO		03/19/07
362.600000	APPROACH		03/19/07
384.400000	CLEARANCE DELIVERY		03/19/07

WEBSTER FIELD

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
126.200000	TOWER		03/19/07
140.100000	TOWER/GROUND	VEHICLE TRAFFIC	03/19/07
358.000000	TOWER		03/19/07

FM

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
138.975000	TOWER/GROUND	VEHICLE TRAFFIC	03/19/07
139.500000	PUBLIC WORKS	TRANSPORTATION	03/19/07
139.525000	VX-23	LINE/MAINT	03/19/07
140.037500	MASTER AT ARMS		03/19/07
143.725000	FUEL FARM		03/19/07
151.715000	UNIVERSAL REFUELING		03/19/07
451.800000	IAP		03/19/07

TRUNK

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
406.350000	TRUNK		03/19/07
410.150000	TRUNK		03/19/07
411.325000	TRUNK		03/19/07
412.050000	TRUNK		03/19/07
412.750000	TRUNK		03/19/07

ADVISORY/BAY WATCH/ECHO CONTROL/SHADETREE

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
305.200000	ADVISORY		03/19/07
119.275000	ADVISORY/BAY WATCH	CHECK-IN	03/19/07
256.500000	ADVISORY/BAY WATCH	DISCRETE	03/20/07
270.800000	ADVISORY/BAY WATCH	BTN 9	03/20/07
354.800000	ADVISORY/BAY WATCH	BTN 8	03/20/07
369.900000	ADVISORY/BAY WATCH	CHECK-IN/DISCRETE	03/20/07
262.950000	ADVISORY/BAY WATCH/ECHO CONTROL		03/20/07
264.550000	ADVISORY/BAY WATCH/ECHO CONTROL	DISCRETE	03/20/07
268.850000	ADVISORY/BAY WATCH/ECHO CONTROL/SHADETREE	DISCRETE	03/21/07
291.150000	ADVISORY/BAY WATCH/ECHO CONTROL	DISCRETE	03/20/07
310.550000	ADVISORY/BAY WATCH/ECHO CONTROL	DISCRETE	03/20/07
320.450000	ADVISORY/BAY WATCH/ECHO CONTROL	DISCRETE	03/20/07

BASE OPS/ MAINT

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
236.300000	HX-21	BASE OPS/MAINT	03/20/07
249.650000	V-22 OSPREY	BASE OPS/MAINT	03/20/07
250.700000	VX-23	BASE OPS/MAINT	03/20/07
264.150000	USN TPS	BASE OPS/MAINT	03/20/07
285.200000	VX-20	BASE OPS/MAINT	03/20/07
282.800000	SAR	BASE OPS/MAINT	03/20/07
302.550000	BASE OPS		03/20/07
310.150000	VQ-4	MAINT	03/20/07
337.900000	NRL FSD	BASE OPS/MAINT	03/20/07
341.100000	VX-1	BASE OPS/MAINT	03/20/07

GLOBAL HAWK

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
123.275000	GLOBAL HAWK		03/20/07
142.775000	GLOBAL HAWK		03/20/07
254.025000	GLOBAL HAWK		03/20/07

MISC

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
123.525000	NAVY AIR REFUELING		03/20/07
225.000000	VX-1	INTERFLIGHT	03/20/07
387.900000	FCLP		03/20/07

RTPS

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
235.725000	RTPS		03/20/07
277.000000	RTPS		03/20/07
289.800000	RTPS		03/20/07
299.400000	RTPS		03/20/07
315.500000	RTPS		03/20/07
338.150000	RTPS		03/20/07
350.900000	RTPS		03/20/07
363.350000	RTPS		03/20/07
376.800000	RTPS		03/20/07
382.950000	RTPS		03/20/07
392.675000	RTPS		03/20/07
225.025000	RTPS-HTMC	HOT MIC TO CHASE	03/20/07
249.950000	RTPS-HTMC	HOT MIC TO CHASE	03/20/07
251.450000	RTPS-HTMC	HOT MIC TO CHASE	03/20/07
309.025000	RTPS-HTMC	HOT MIC TO CHASE	03/20/07
325.000000	RTPS-HTMC	HOT MIC TO CHASE	03/20/07
342.025000	RTPS-HTMC	HOT MIC TO CHASE	03/20/07

UNCONFIRMED

FREQUENCY	USE	ADDITIONAL INFORMATION	CONFIRMED
123.350000	UNKNOWN		03/21/07
138.600000	UNKNOWN		03/21/07
138.625000	?usn tps?		03/21/07
138.725000	?LINE/MAINT?		03/21/07
140.750000	?LINE/MAINT?		03/21/07
140.925000	?LINE/MAINT?		03/21/07
142.075000	?GROUND ELECTRONICS MAINT?		03/21/07
250.100000	UNKNOWN		03/21/07
272.400000	ROMEO		03/21/07
313.700000	?WATERBUG LAB/POSSUM HOLLOW?		03/21/07
382.700000	UNKNOWN		03/21/07
383.700000	?SAIL?		03/21/07

Real Time Telemetry Processing System (RTPS)

The freqs identified as RTPS are freqs that are assigned to the Real-Time Telemetry Processing System (RTPS) at PAX River, MD. Many sources (lists) of freqs for PAX have these freqs identified as belonging to a particular Aircraft Flight Test Program. That is not necessarily the case. These freqs are assigned by RTPS as needed. If a test aircraft flies on a regular basis, then they may very well keep the same freq for a long period of time making it appear that the freq has been permanently assigned to that particular test bed. But if that test program/aircraft goes down for a mod, goes away for off base testing, or any other reason it may not fly for a while, When it returns to flight status RTPS may very well have someone else using the old freq and give another freq to the returning aircraft/program. It has been observed in the past that 2 different flight test programs have used the same freq on a given day.

RadioReference Database Entries

• Naval Air Station Patuxent River, MD
• Pax River NAS Trunk system

Related Links

• Naval Air Warfare Center Aircraft Division
• Naval Test Wing Atlantic
  • Flight Test and Evaluation
  • Rotary Wing Aircraft Test Squadron
• Naval Force Aircraft Test Squadron Web Page
• Air Test and Evaluation Squadron One
• World Aero Data-Patuxent River NAS