Drug Enforcement Frequencies 
                                                   

  2808.5   X-ray Alpha                 14443.0   Yankee Foxtrot
  4500.0   Zulu Alpha                 *14686.0   Papa
  4991.0   X-ray Bravo                *14690.0   Golf
  5058.5   X-ray Charlie               15443.0   Sierra One Three
 *5277.0   Alpha                       15867.0   Zulu Echo         (6)
  5527.0                               15953.5   X-ray Foxtrot
  5571.0   Yankee Bravo                15964.0   Victor Delta
 *5841.0   Bravo                       16141.0   HORNET 4
  6870.0                               16300.0   Possible Sierra ?
  7300.0   Charlie                     16348.0
  7527.0   Zulu Bravo (1)              17171.0   Sierra Hotel(?)
  7582.0                               17301.0   Sierra Zero Eight
  7657.0   Foxtrot                     17312.0   Delta Zero Seven  (#)
  7778.5   X-ray Delta                 17443.0   Tango Echo        (#)
  8912.5   Yankee Charlie (2)          17601.0   X-ray Golf
  9238.5   X-Ray Echo                  17952.0                     (+)
 *9497.0   Delta                      *18171.0   Sierra India
  9802.0   Zulu Charlie                18283.0
 10242.0   Tango Alpha (3)             18594.0   Victor Charlie    (7)
 11073.5                              *18666.0   Hotel
*11076.0   Echo                        19015.0   Sierra Zero Seven
 11246.0                               19131.0   Sierra Juliet
 11288.0   Yankee Delta                20890.0                     (8)
 11408.0   Victor Golf                 23214.0                     (9)
 11494.0   Victor Foxtrot (4)          23343.0   Tango Hotel       (#)
 12138.5                              *23402.5   Romeo
 12215.0   Sierra Two Nine            *23675.0   India
 12222.0   Zulu Delta                  24120.0   Sierra Zero Three
 13312.0   Yankee Echo    (+)          25350.0                    (10)
 13907.0                  (5)          25410.0   Sierra Zero Two
*14350.0   Lima                        26600.0   Sierra Zero One


* denotes Atlas frequencies.

SLINGSHOT - Combined USCG/USCS Interdiction Center, Miami, FL.
            Acts as the nominal command and control for all anti-drug
            airborne tracking/surveillance and seaborne interdiction
            operations in the southeast US, Bahamas and the Caribbean.

OCEANSIDE 300 - USCS/USCG-Blue Lightning Operations Center, Miami.
                Coordinates routine stop/searches of small pleasure craft
                in the coastal SE USA and Bahamas (carried out by a fleet
                of USCS boats).

HAMMER - USCS/USCG command and control center, Riverside, CA.

PANTHER - The only DEA station normally heard on Customs Service frequencies.

ATLAS - Rockwell-Collins Comm facility, Cedar Rapids, IA, which acts as a
        "switchboard" for the DEA. It is NOT a DEA Comm station. Atlas 
        also provides services for elements of the US Military. Almost all
        Atlas comms are of a routine administrative nature (Air guard, phone
        patches, etc.). Actual DEA operational comms are in secure modes and on
        frequencies (unknown) other than used by Atlas or Customs.

NUMBERS in parentheses are:

 US Customs Service primary COTHERN (Customs Over The Horizon Enforcement 
 Radio Net) channels.  The COTHERN system is a digital controlled scanning 
 system, units send a control blurp of data every so often on each channel 
 for propagation test and ID, and when a unit wants another unit online,
 sends a digital selcal on each channel until it finds a response of
 good quality.  The units then stop scan on that channel and begin
 USB voice comms.  If they want to scramble, a TDM (Time Division 
 Multiplex) scramble is used.

 You will be able to tell if there are units receivable on a channel
 that you are listening to by hearing the "buzzing" sort of data beeps
 that the units send occasionally regardless of whether there are voice
 comms going on.  When a communication is finished, you'll hear the units
 say they are "going back to scan".

 [Thanks to Skip Sanders (N6IMN) for the info on the COTHERN freqs.]

(+) Indicates frequencies which carry periodic data bursts which differ 
    from those heard on the COTHERN frequencies.

The frequencies in the X-ray designator sequence are (according to the 
Grove Shortwave Directory [4th ed.]) assigned to the FBI for a RTTY/USB 
network using tone encoded squelch. I assume the frequencies are either 
"on loan" or have been reassigned to the USCS.



AMBUSH - A military base, possibly in Puerto Rico.

CONDOR - Military base somewhere farther south of AMBUSH.

ANGRY WARRIOR - Possibly March AFB, CA.

VIEWFINDER 2 - Howard AFB, Panama.

(#) Indicates frequencies heard carrying morale phone patches.

Comms between CONDOR and ANGRY WARRIOR are regularly heard on 14443.0
(Yankee Foxtrot).

Comms between ANGRY WARRIOR and VIEWFINDER 2 are regularly heard on the
Sierra Zero X, Sierra One X, and Sierra Two X series of frequencies.

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