06/06/20 15:01:49 UTC
264.625 MHz
WINTER HAVEN, FL
Shark flt working Avon with 650 rounds of 20 mike mike
 
06/06/20 14:42:26 UTC
264.625 MHz
WINTER HAVEN, FL
Mako 11 possible "gun hang up" rtb to give shark flt room
 
06/05/20 15:01:20 UTC
226.300 MHz
,
BISON 51 flight to refuel COBRA 01 (Viper Common Frequency)
 
06/04/20 19:58:30 UTC
343.700 MHz
SHAWNEE MISSION, KS
SPIRIT02
 
06/04/20 13:55:59 UTC
135.700 MHz
,
Boston (ZBW). ROCK 41 flight conducting random refueling on AR212. (ADSB shows callsign as ROMA82, KC-10, 79-1949). Handoff to 134.950.
 

05/20/20 22:45:29 UTC
322.300 MHz
2x prev unk freqs KGSO-PIEDMONT TRIAD INTL-05/071 - COM REMOTE TRANS/REC 243.0, 269.225, 284.6, 290.325, 322.3, 327.075 U/S. 26 MAY 09:00 2020 UNTIL 26 MAY 14:00 2020. CREATED: 19 MAY 09:00 2020 -AJ
 
05/20/20 16:25:54 UTC
70.400 MHz
A2A, 2x helo pilots: "...just bee-boppin' around the Uwharries" "...target on the dam then run through some (?)D-P-M-R's(?)...following the river" "we're at 550AGL..yup we're 780" discussing last altimeter setting "that was hours ago tho, at Simmons" rx'd central Uwharries, PL 151.4. 1955-2015ish, local time. 5/13/2020 -AJ
 
05/19/20 19:38:09 UTC
322.300 MHz
2x prev unk freqs KGSO-PIEDMONT TRIAD INTL-05/071 - COM REMOTE TRANS/REC 243.0, 269.225, 284.6, 290.325, 322.3, 327.075 U/S. 26 MAY 09:00 2020 UNTIL 26 MAY 14:00 2020. CREATED: 19 MAY 09:00 2020 -AJ
 
05/19/20 19:36:54 UTC
284.600 MHz
2x prev unk freqs KGSO-PIEDMONT TRIAD INTL-05/071 - COM REMOTE TRANS/REC 243.0, 269.225, 284.6, 290.325, 322.3, 327.075 U/S. 26 MAY 09:00 2020 UNTIL 26 MAY 14:00 2020. CREATED: 19 MAY 09:00 2020 -AJ
 
05/15/20 19:22:10 UTC
50.125 MHz
Helos in Uwharrie vic "291.9" "try them again and then we'll RTB" "head back to point 227, pick up (?gimlin?)" "it's a good thing out PAX brought parachutes, we'll just drop em off here and call it good" (??i dunno what that means??) "ascend to 100 feet" "14,16, are you gonna drop (?sticks?) 192,193 and go straight to 194?" "gonna go straight to 195". Associated w/ comms heard on 69.425FM and possibly 38.725FM as well. 5/14/2020 approx 1837+h -AJ
 
05/15/20 15:03:39 UTC
50.125 MHz
Helos in Uwharrie vic "291.9" "try them again and then we'll RTB" "head back to point 227, pick up (?gimlin?)" "it's a good thing out PAX brought parachutes, we'll just drop em off here and call it good" (??i dunno what that means??) "ascend to 100 feet" "14,16, are you gonna drop (?sticks?) 192,193 and go straight to 194?" "gonna go straight to 195". Associated w/ comms heard on 69.425FM and possibly 38.725FM as well. 5/14/2020 approx 1837+h -AJ
 
05/15/20 14:53:45 UTC
69.425 MHz
ARMY 20327 attempts to contact KVUJ twr (was closed) then on 69.425FM a report of no contact & someone should try UHF. This followed by "291.9" (KVUJ UHF) being called out on 50.125FM by a different party. Repeat of failed contact on VHF by female pilot (heard earlier on 69.425FM) IDing as ARMY 20273. Considering valley location, good Rx. 5/14/2020 approx 1830+h -AJ
 


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How to Make Use of ADS-B Mode-S Data

I recently conducted a poll of MilAir listeners asking them if they use mode=s data in their hobby. There were a few votes from people stating they weren't sure how to use mode-s data or what it was all about.

So I thought I'd write a short write-up on what it is and how I use it.

Mode-S data is the data transmitted from the aircraft's transponder on 1090 MHz. There are several different messages that the transponder can transmit. Depending on the message transmitted we can get some useful information such as aircrafts altitude and callsign. If we get enough messages containing altitude, we can then graph the various altitudes reported in the messages. With this graph you can make an educated guess as to what the plane is doing.

Example, if you first see him at 30,000' but 15 minutes later he's at 10,000' AND you have an airport in your general area you can guess he's landing. I see this a lot with E-4B's, either they're going through my coverage area level the entire time, or if he's descending its a good guess he's landing at Patrick AFB. Also I see a lot of tankers as they're climbing out of MacDill AFB, or tankers landing at MacDill.

When I see an E-4B you know its a good time to start checking out the ORDERWIRE freqs. If you see a tanker leveling off around 26,000' or so, that's a good time to start checking your AirRefueling frequencies. When you see an aircraft at an altitude and if you know which ARTCC freq is for that altitude (LOW, HIGH, or ULTRA-HIGH) you can usually find him on that centers frequency.

Other uses are when I see E-3's on mode-s its a good bet they're going to be supporting a military exercise, again its time to start checking activity on known freqs that fighters in your area use during exercises.

If you use my software with the Raspberry Pi computer (see Raspberry Pi / RTL Dongle Mode-S Sharing System), a graph will be generated of not only altitude, but signal strength from the 1090MHz transponders signal. If he's getting stronger generally that means he is flying towards you, weaker he is flying away.

If you live near water and you start seeing Coast Guard aircraft on your mode-s data AND you see them start flying low its a pretty good bet there's an SAR (Search & Rescue) mission happening in your area. Here are some USCG aircraft recently I captured on mode-s: USCG Helo SAR Mission This USCG Helo was involved in an SAR for a missing swimmer from the beach at Daytona Beach. When looking at the altitude graph you see he took off from KDAB after refueling, climbed to 700' to head to the beach where you see he descending to about 100' to fly the search pattern. This went on for 2 days with various USCG Helo's and a C-144

This is just some of the helpful info you can get from mode-s to better you're hobby experience. The more you look at the mode-s data for your area, you'll quickly start seeing patterns which can clue you in on what's happening and where to listen.

Not all, but most aircraft transmit mode-s data, in a few years it will be a requirement. At this time it is very rare to see military fighters on mode-s however it appears that most transports, tankers, the fleet of E-4B's, E-3's, and E-6's are all transmitting on mode-s. In the near future fighters will have to as well in order to make the "NextGen Air Traffic Control System" function.

The aircraft used for Air Foce One / Two as well as other government VIP's can be seen on mode-s. I've seen AF1/2 several times this year.

Another neat feature, if you start seeing RCHxxxT flights (REACH transports with callsigns ending in "T") on mode-s its very likely AF1/2 will be in your area in the next few days as REACHxxxT flights are the presidential advance transport aircraft.

So that is a short write-up on how I use mode-s to help in my listening experience.

If you want to see live mode-s data you can go here: Live Military Aircraft Mode-S Logger this page updates every 15 seconds. I hope to seen start having more mode-s stations feeding this webpage.

If you want get more info on how to receive mode-s data with some very cheap hardware check out the following pages:
Your Own $20 ADS-B Aircraft Radar System
Self-Contained Aircraft Radar System
Raspberry Pi / RTL Dongle Mode-S Sharing System

I hope you've enjoyed this article.