Federal Harris County (TX)
From The RadioReference Wiki
164.7375 M 293 NAC Border Patrol Tactical 1 - surveillance? 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 federal frequencies monitored in Harris County, Texas:
141.6125 FFF NAC encrypted? 162.1625 293 NAC encrypted 162.2125 R 136.5 PL VAMC in Louisiana? - 9xx units, south gate radio room building 7, something at north central high school, emergency work order, loading dock 162.2125 M 192.8 PL truck to truck 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? 293 NAC Marshals? P25? 162.7750 M? A1A NAC EPA? encrypted 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 163.1000 M 293 NAC oversize load escort, did the radar make it through 163.2000 M 839 NAC Marshals? encrypted 163.3625 M 146.2 PL VAMC (skip from out of area)? - headquarters, 45 radio check for the VA 163.4375 M 241.8 PL voice 163.4750 M 179.9 PL spanish 163.6500 052 NAC ICE? P25 encrypted (heard during FBI fugitive search in Fort Bend County area) 163.7000 M 206.5 PL voice 163.7125 M 103.5 PL "tac" car-to-car (USFS or NIFC?) 163.7125 M 114.8 PL car-to-car 163.7375 M? 100 NAC encrypted 163.8125 M 864 NAC Marshals? encrypted 164.2625 I? 604 NAC Strategic Petroleum Reserve? Input? 164.4500 M 151.4 PL car-to-car talk 164.4500 M 293 NAC EPA? car-to-car 164.6000 M 293 NAC Marshals? encrypted 165.0250 M CSQ heard during Hurricane Gustav 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 165.7625 F Medium-intensity Approach Lighting System with Runway Alignment Indicator Lights (MALSR)? - data bursts 165.8250 M 060 NAC ICE? (used during NCAA Final Four 2011) 166.4750 M 100.0 PL voice 166.5375 M 658 NAC ATFE? encrypted (Net 8) 166.5875 M 100.0 PL CBP new Net input? 166.5875 M 317 NAC CBP new D-Net input? 166.6000 M 032 DPL voice 166.6250 M 250.3 PL voice 166.7375 M 314 NAC CBP? voice 166.7875 M 754 DPL voice with Canadian accent, truck to truck 166.8625 M 001 NAC encrypted 167.2125 EMWIN Data? (continuous data 24/7) 167.4000 M? 293 NAC voice 167.6750 M 293 NAC Marshals? encrypted 167.7250 M 103.5 PL voice, car-to-car 167.8750 R? 504 NAC Strategic Petroleum Reserve? 167.9750 R 501 NAC Strategic Petroleum Reserve? 168.0375 M 301 NAC CBP? encrypted 168.0750 M 110.9 PL voice car-to-car 168.0875 M 315 NAC CBP? 168.2625 R? 301 NAC CBP D-Net? 168.2750 M 123.0 PL voice car-to-car 168.4500 R? 402 NAC Strategic Petroleum Reserve? - encrypted 168.4500 R? 502 NAC Strategic Petroleum Reserve? - encrypted 168.5000 M CSQ voice car-to-car 168.6125 M very weak/broken voice 168.7000 M CSQ National Incident Radio Support Cache (NIRSC) Command 1? - analog voice and DES, surveillance 169.1375 290 NAC encrypted 169.2500 I? 293 NAC FAA input? 169.3250 I? 293 NAC FAA input? 169.4125 M? 316 NAC CBP? 169.6375 R? 167 NAC FBI? (ducting) 169.6375 R 301 NAC CBP/Border Patrol? (ducting) 170.2625 R? 293 NAC encrypted 170.7250 M analog simplex voice during Hurricane Gustav 170.7875 R? 452 NAC DHSNET? encrypted (Super Bowl 2017) 170.8000 M 293 NAC Marshals? encrypted 171.0250 R IFLOWS/Harris County Flood Alert System - League City repeater output, unconfirmed 171.2000 M 293 NAC DOE NEST? encrypted 171.3125 trunked control channel? very weak in Houston during good conditions 171.6125 M 864 NAC Marshals? 172.2250 M 100.0 PL voice 172.7000 I? 293 NAC encrypted, correlated with 170.2625 activity 172.9000 R CSQ somewhere near IAH airport 172.9500 R? 293 NAC FAA? 173.0500 S? telemetry at Hobby Airport? - chirping sound data 173.0500 M? 293 NAC encrypted 173.1625 R? data bursts 173.5250 M? 1C3 NAC encrypted, maybe US Capitol Police travel channel 173.7125 M? 293 NAC clear voice, aircraft? (coast guard or military?) 173.8750 M? 1D3 NAC encrypted, maybe US Capitol Police travel channel
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) 171.2000 M DOE? NEST? - brief analog voice (NCAA Final Four 2011), also P25 or intermod? 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.
406.1750 293 NAC encrypted 407.1250 293 NAC key-up (not encrypted) 409.0500 M? 293 NAC radio check 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 414.5625 M 168 NAC USPS OIG? encrypted 414.5625 M 169 NAC USPS OIG? encrypted 414.7500 M 169 NAC USPS OIG? encrypted
406.3750 R 114 DPL USPS Houston (Downtown) Processing and Distribution Center - Maintenance 409.2750 R 156.7 PL USPS North Houston Processing and Distribution Center - Operations 410.2000 M 114 DPL USPS Houston (Downtown) Processing and Distribution Center - Maintenance Input 410.3250 R 156.7 PL USPS North Houston Processing and Distribution Center - Maintenance (has phone patch) 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
- Air National Guard (RC-26B) - Ellington International Airport (Houston)
- Army National Guard (Apache helicopters, Lakota 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 - Hooks Airport (Houston), formerly West Houston Airport (Houston) prior to Hurricane Harvey - 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)
The following CBP aircraft have been noted operating the Houston region.