Federal Harris County (TX)

Unidentified federal frequencies monitored in Harris County, Texas:

VHF-High

163.1    M           DES
163.7    M  206.5 PL voice
163.8125 M           P25 encrypted
164.55   M           OCDETF? DES
165.025  M     CSQ   heard during Hurricane Gustav
166.4625 M     CSQ   Federal Common (analog unencrypted and DES encryption)
167.5125 M?          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           DES
168.35   M           DES, analog voice
168.8625 M           OCDETF? DES
168.975  M?          DES?
169.6375             data bursts
170.025  R? 167.9 PL FBI? weak, open mic/keyed-up dead air/static
170.725  M           analog simplex voice during Hurricane Gustav
170.8    M?          P25
171.175  R  167.9 PL FBI? weak, open mic/keyed-up dead air
173.025  R? 167.9 PL FBI? lots of key-ups with weak signal (same time as 167.5125), DES
173.1    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 remain in use after the FBI's conversion to P25 in the Houston area. These frequencies may be used by OCDETF because they may be maintained for compatibility with other agencies on VHF-high that have not yet converted to P25 (e.g., CBP/ICE). Some of these frequencies are also reported as nationwide FBI frequencies.

UHF

414.5625 M?  168 NAC encrypted
416.1    M   293 NAC

Related Links

• Harris County Federal Frequencies - confirmed frequencies