08/04/21 00:33:13 UTC
343.250 MHz
CLINTWOOD, VA
Mid-air re-fueling training
 
08/02/21 19:29:41 UTC
238.1000 MHz
CAPE MAY, NJ
BOBCAT 1 checking in with Giant Killer
 
08/02/21 18:50:13 UTC
346.525 MHz
WHEELING, IL
BISON1 checking w/ Phoenix for entry to Oshkosh, WI
 
08/02/21 16:51:18 UTC
276.500 MHz
CLINTWOOD, VA
Mid-air re-fueling training
 
08/02/21 15:31:17 UTC
343.250 MHz
CLINTWOOD, VA
Mid-air re-fueling training
 

07/26/21 15:43:59 UTC
140.150 MHz
NOTAM for KMEB LAURINBURG-MAXTON 07/006 - SVC TEMPO TWR LOCAL CTL 122.8, GCA CTL 140.15. 30 JUL 12:00 2021 UNTIL 30 JUL 16:00 2021. CREATED: 26 JUL 12:55 2021. 1 of 3 covering July26-30. -AJ
 
07/07/21 16:21:19 UTC
40.775 MHz
M0483/21 - AERODROME SOUTHEAST RAMP – 82ND CAB CONDUCTING FARP OPS FOR PARTICIPATING AIRCRAFT ONLY. OPERATIONAL FREQ FM 40.775. PILOTS USE CAUTION ENTERING AND EXITING THE FARP. 06 JUL 19:59 2021 UNTIL 01 OCT 21:00 2021. CREATED: 06 JUL 19:59 2021 -AJ
 
06/09/21 17:50:56 UTC
299.30 MHz
Couple of FA-18's from Beaufort Marine Corp Air Station or better known as BMCAS
 
06/03/21 19:38:53 UTC
260.725 MHz
Copy we are inbound at this time
 
05/31/21 16:08:14 UTC
69.425 MHz
Third party report of frequency being in use in vic of Concord NC approx 1700h. 2x UH-60M, 07-20035 (AE47E5) and 07-20063 (AE47FC) seen in the area of KJQF on ADSBexchange just prior to the 2021 Coca-Cola 600. Prev noted in use by demo team helos, one being VIPER188 at 2019 Coca-Cola 600. 5/30/2021 -AJ
 
05/12/21 23:25:24 UTC
123 700 MHz
gulfport
 
05/05/21 17:10:14 UTC
376.025 MHz
EPIC41 to OMEGA18 (OMEGA DZ normal callsign for KVUJ DZ). Talking as if doing an airdrop, which would normally be at KVUJ. ADSBexchange flight track for 00-0183 (AE08E3) shows a racetrack over Rockwell NC vic. Unknown activities between approx 18-1900 ish 5/4/2021 -AJ
 


HAVEQUICK Military Radio System:
What it Is and What It's Not

HQ, HAVE QUICK are other names the HAVEQUICK Frequency Hopping system is referred to as.


In this article I hope to give you a better understanding on what the Military HAVEQUICK radio system is, how it works, and what it's not.

It is important to remember that HAVEQUICK is NOT a form nor was intended to be a form of encryption. Many HAVEQUICK transmissions are voice analog and in the clear. Yes, encryption can be used. However the HAVEQUICK radio system was not developed with the intent of being an encryption system. I have personally heard some HAVEQUICK encrypted comms on the scanner however most of the HAVEQUICK transmission were in the clear and you could usually make out a word or two during the transmission.

HAVEQUICK is a frequency hopping system is used as an anti-jamming communication system. Basically the HAVEQUICK system uses a series of 16 UHF AM (225-380 MHz) radio frequencies. During a radio transmission a computer in the aircraft rapidly switches the transmission between the 16 pre-set frequencies, both the length and order of frequency selection are "random" and are based on very precise timing. The the transmitter and receiver must be "in-sync" as to the timing of each frequency switch or the received signal will be broken.

The perfered method of frequency switch timing is via a GPS receiver attached to the HAVEQUICK radio. However GPS is not always a perfect method. GPS signals can be blocked during various maneuvers a jet figher is performing during a dog-fight. GPS signal can also be blocked by another aircraft above, blocking line-of-site to the GPS satelittes. Due to these possiblities HAVEQUICK radios have other methods of getting a "timing-tick" signal.

In the absence of GPS equipment, a Time Signal Set (TSS) can pass Time-Of-Day (TOD) over-the-air to any HAVEQUICK radio. These TSS's are normally installed at Air Force bases or on large surface vessels.

Another method of sending TOD information to a HAVEQUICK radio is from an AWACS or JSTARS aircraft. These aircraft have onboard rubidium oscillators that can pass an accurate TOD signal to any HAVEQUICK radio. I have personally heard these TOD signals, below is a YouTube video I made of such a signal.

Video of Actual TOD Timing Signal from an AWACS during Exercises in Florida


When you are searching the Military Air Band (225-380 MHz) and your scanner stops on what seems like a transmission that was the length of a word or two, that was probably a HAVEQUICK transmission. The table below outlines the HAVEQUICK frequenices. These frequencies are what are known as the "Frequency Managed Training Net".

FMT-Net for Continental United States
Channel DesignationFrequency (AM)
Preset Channel 20:235.050 MHz
Preset Channel 19:225.150 MHz
Preset Channel 18:252.925 MHz
Preset Channel 17:239.950 MHz
Preset Channel 16:271.950 MHz
Preset Channel 15:267.850 MHz
Preset Channel 14:262.450 MHz
Preset Channel 13:257.250 MHz
Preset Channel 12:314.450 MHz
Preset Channel 11:308.750 MHz
Preset Channel 10:303.275 MHz
Preset Channel 9:298.650 MHz
Preset Channel 8:293.550 MHz
Preset Channel 7:289.050 MHz
Preset Channel 6:284.150 MHz
Preset Channel 5:279.750 MHz
TOD AWACS/JSTARS signal 287.450 MHz



I have personally heard HAVEQUICK comms on all of the above frequencies except for 298.650. That could simply be that over the years my searching scanner just never was at the right place at the right time.

The above frequencies maintain a 4 MHz minimum separation and have been standardized for continental United States FMT-Nets. These frequencies are in the order in which they will be used for training by the Tactical Air Command.

You may ask why Preset Channels 0 - 4 do not exist in the above table. I do not know the answer to that question, but I do have some thoughts. There are 2 different types of nets, FMT-Nets as outlined here and are used for training in the CONUS. Then there are T-Nets. I believe the empty channels deal with allowing open memory in the HAVEQUICK radios to allow for the coded "Word-of-the-Day" which are used in T-Nets. Just a thought.

I had always know a little about what HAVEQUICK was and how it functioned. However until doing some research I didn't know the HAVEQUICK frequency order until I found an online non-classified document. Now with this information I am going to try and scan HAVEQUICK and hear the entire transmission. My first thought is to enter the above frequencies into a bank, in the order as listed above without any delay. Next time there are HAVEQUICK transmissions in Florida I hope to learn more.

I hope you've enjoyed this article.