Federal Harris County (TX)
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Contents
Itinerant Frequencies
166.5625 M 192.8 PL Department of Agriculture Wildlife Services - distributing rabies vaccine from helicopters in Fort Bend County area 9/17/2013 168.3500 M 100 NAC Department of Health and Human Services Secretary protective detail 173.8750 R 94.8 PL US Capitol Police "Travel 3" (Giffords detail at Hermann TIRR)
Unidentified Frequencies
Unidentified federal frequencies monitored in Harris County, Texas:
VHF-High
141.6125 FFF NAC encrypted? 162.2375 M CSQ analog, CC hit around the Eastex and 610, informal conversation, mobile-to-mobile chit chat on freeways in downtown Houston 162.7125 M? Marshals? P25? 162.7875 M 839 NAC Marshals? encrypted 162.7875 M 864 NAC Marshals? encrypted 162.9625 M CSQ chit chat 163.1000 M 101 NAC voice, encrypted 163.1125 M 496 NAC Federal Air Marshals/TSA VIPR? clear voice 163.2 M 839 NAC Marshals? encrypted 163.6500 052 NAC ICE? P25 encrypted (heard during FBI fugitive search in Fort Bend County area) 163.7000 M 164 NAC ICE? clear voice, encrypted 163.7000 M 206.5 PL voice 163.7125 M 103.5 PL "tac" car-to-car (USFS or NIFC?) 163.7375 M? 100 NAC encrypted 163.8125 M 864 NAC Marshals? encrypted 164.4500 M 151.4 PL car-to-car talk 164.7375 M 293 NAC surveillance? 165.0250 M CSQ heard during Hurricane Gustav 165.0750 M? 293 NAC Marshals? encrypted 165.6375 M 100.0 PL voice 165.6875 M 100.0 PL CBP new Net input? 165.6875 M 001 NAC Secret Service? encrypted 165.8250 M 060 NAC ICE? (used during NCAA Final Four 2011) 166.4750 M 100.0 PL voice 166.4875 M 100.0 PL CBP new Net input? 166.5875 M 100.0 PL CBP new Net input? 166.6250 M 250.3 PL voice 166.7375 M 314 NAC CBP? voice 167.0875 M? 68F NAC NTIA LE-1/LE-A digital?, key-up, not encrypted 167.2125 EMWIN Data? 167.4000 M? 293 NAC voice 167.6750 M 293 NAC Marshals? encrypted 167.7250 M 103.5 PL voice, car-to-car 168.0375 M 308 NAC CBP? 168.2625 R? 301 NAC CBP D-Net? 168.6125 M very weak/broken voice 168.7000 M CSQ National Incident Radio Support Cache (NIRSC) Command 1? - analog voice and DES, surveillance 169.2500 I? 293 NAC FAA input? 169.3250 I? 293 NAC FAA input? 169.6375 data bursts, P25? 170.2625 R? 293 NAC encrypted 170.7250 M analog simplex voice during Hurricane Gustav 170.8000 M 293 NAC Marshals? encrypted 171.0250 R IFLOWS/Harris County Flood Alert System - League City repeater output, unconfirmed 171.2000 M DOE? NEST? - brief analog voice (NCAA Final Four 2011), also P25 or intermod? 171.3125 trunked control channel? very weak in Houston during good conditions 171.6125 M 864 NAC Marshals? 172.7000 I? 293 NAC encrypted, correlated with 170.2625 activity 172.9000 R CSQ somewhere near IAH airport 172.9000 R? 046 NAC mostly encrypted 172.9500 R? 293 NAC FAA? 173.0500 S? telemetry at Hobby Airport? - chirping sound data 173.1625 R? P25? 173.5250 M? 1C3 NAC encrypted, maybe US Capitol Police travel channel 173.7125 M? 293 NAC clear voice, aircraft? 173.8750 M? 1D3 NAC encrypted, maybe US Capitol Police travel channel 173.8875 M? ATFE Tactical 6? - P25 encrypted
Presumed Obsolete
163.1000 M DES 164.5500 M OCDETF? DES 167.5125 M? FBI? DES? 167.5125 R? 167.9 PL FBI? lots of key-ups with weak signal (same time as 173.025), feedback/squeaking, weak voice 167.5375 M FBI? DES 168.3500 M DES, analog voice 168.8625 M OCDETF? DES 168.9250 R 167.9 PL reported in MT Fed Files 170.0250 R? 167.9 PL FBI? weak, open mic/keyed-up dead air/static 170.8750 S CSQ FDC Houston - Prisoner Transportation between Court and Federal Detention Center (mobiles transmit 127.3 PL) 171.1750 R 167.9 PL FBI? near IAH airport, open mic/keyed-up dead air (this may be obsolete, now P25) 173.0250 R? 167.9 PL FBI? lots of key-ups with weak signal (same time as 167.5125), DES 173.1000 R? 167.9 PL FBI? open mic dead air, DES
The Organized Crime Drug Enforcement Task Force (OCDETF) is a multi-agency federal task force (commonly associated with the FBI although many other agencies participate). The DES frequencies above initially remained in use after the FBI's conversion to P25 in the Houston area but have since gone silent.
UHF
406.1750 293 NAC encrypted 407.1250 293 NAC key-up (not encrypted) 410.0125 R? 293 NAC weak/broken voice in Houston 410.2000 M 293 NAC weak/broken voice in Houston 411.7875 M? 293 NAC Coast Guard? keyed-up for 3 seconds with a high pitch tone (NCAA Final Four 2011) 412.4375 206.5 PL constant dead carrier around UH Clear Lake/JSC area 413.9625 M? 201 NAC Federal Protective Service? voice 414.5625 M 168 NAC USPS OIG? encrypted 414.5625 M 169 NAC USPS OIG? encrypted 414.7500 M 169 NAC USPS OIG? encrypted
Presumed Obsolete
406.3750 R 114 DPL USPS Houston (Downtown) Processing and Distribution Center - Maintenance 410.2000 M 114 DPL USPS Houston (Downtown) Processing and Distribution Center - Maintenance Input 412.7000 R 125 DPL USPS Houston (Downtown) Processing and Distribution Center - Operations 413.1000 M 293 NAC DOS Diplomatic Security Service - Agent 3/Passport Agency Office (encryption used) 413.1250 M 293 NAC DOS Diplomatic Security Service - Agent 4 (encryption used) 413.8375 M 0F0 NAC DOS Diplomatic Security Service - Agent 2 (encryption used) 417.7000 M 125 DPL USPS Houston (Downtown) Processing and Distribution Center - Operations Input
Federal Aviation
Bases
- Army National Guard (Apache helicopters) - Ellington International Airport (Houston)
- Army Reserve (Apache helicopters) - Lone Star Executive Airport (Conroe)
- CBP - Lone Star Executive Airport (Conroe) - 1003 General Thomas Kelly Blvd.
- Coast Guard - Ellington International Airport (Houston)
- DEA - Lone Star Executive Airport (Conroe) - 10318 Dorbandt Drive source source source
- FBI - West Houston Airport (Houston) - identified via monitoring
- ICE - Contract repatriation flights operate to/from Bush Intercontinental Airport but there is no formal base there
- Marshals Service - JPATS flights operate to/from Ellington Airport but there is no formal base there
- NASA - Ellington International Airport (Houston)
CBP Aircraft
The following CBP aircraft have been noted operating the Houston region.
- N192A - helicopter
- N2734K - jet
- N5204G - helicopter
- N6001L - jet
- N810AM - helicopter
- N8142G - single engine turboprop
- N9085U - twin engine turboprop
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