This is a new one to me. Anyone have insight into what may be causing this issue?
Current KDEN ATIS message as of posting….
DEN DEP INFO P 0053Z. 30006KT 8SM BKN025 OVC080 01/M01 A3026 (THREE ZERO TWO SIX). HAZUS WX INFO FOR CO, KS, NE, WY AVBL FM FLT SVC. DEPG RWY25, RUNWAY 3 4 LEFT. ACFT MUST READ BACK ASSIGNED HDG OR FIRST WPT WITH TAKE OFF CLNC. RWY 35L CONDITION CODE 5 5 5 AT 1935Z, RWY 35R CONDITION CODE 5 5 5 AT 1935Z. BA ADZYS IN EFCT. NOTAMS... BFF OTS. BIRD ACTIVITY VICINITY ARPT. GPS, TRANSPONDER, ADS-B ANOMALIES REPORTED IN THE DENVER AREA. ...ADVS YOU HAVE INFO P.
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Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
Some airport workers put GPS jammers into their vehicles so they don’t get in trouble with the airport authority fir speeding.
Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
zeke wrote:Some airport workers put GPS jammers into their vehicles so they don’t get in trouble with the airport authority fir speeding.
And so do others. But there is also an arrival NOTAM and this is effecting transponders and ADS-B.
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- 32andBelow
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Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
There’s lot of Air Force bases in Colorado might be some jamming in an exercise
Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
32andBelow wrote:There’s lot of Air Force bases in Colorado might be some jamming in an exercise
I experienced a TPMS malfuctioning during my summer trip via Colorado. Tire sensors couldn't communicate with TPMS computer because of high level radio waves in certain areas (for e.g Colo Springs). It sounds like a fairy tale but believe me, I am certified radio technician and I know what I am talking about.
Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
gabik001 wrote:32andBelow wrote:There’s lot of Air Force bases in Colorado might be some jamming in an exercise
I experienced a TPMS malfuctioning during my summer trip via Colorado. Tire sensors couldn't communicate with TPMS computer because of high level radio waves in certain areas (for e.g Colo Springs). It sounds like a fairy tale but believe me, I am certified radio technician and I know what I am talking about.
Weird. Maybe that doesn’t happen to us COS locals.
Jam proof tires ftw!
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- 32andBelow
- Posts: 6189
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Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
gabik001 wrote:32andBelow wrote:There’s lot of Air Force bases in Colorado might be some jamming in an exercise
I experienced a TPMS malfuctioning during my summer trip via Colorado. Tire sensors couldn't communicate with TPMS computer because of high level radio waves in certain areas (for e.g Colo Springs). It sounds like a fairy tale but believe me, I am certified radio technician and I know what I am talking about.
GPS jamming during exercises is def a thing
Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
Normal causes of GPS jamming wouldn't explain transponder issues...
Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
GPS and ADS-B use fairly separate frequencies, so either there are two jammers (intentionally or not, malfunctioning devices can create strong interference too) or a very broadband jamming device. The military does have such devices. The USAF next generation low band jammer has a broad range from 500-2000 MHz, encompassing both ADS-B and GPS.
That said, civilian GPS jammers are surprisingly common. I would consider it more likely that the two issues are unrelated. Somebody in the vicinity probably ordered a GPS jammer on AliExpress and something else just happens to be affecting ADSB.
That said, civilian GPS jammers are surprisingly common. I would consider it more likely that the two issues are unrelated. Somebody in the vicinity probably ordered a GPS jammer on AliExpress and something else just happens to be affecting ADSB.
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- ilovepabst
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Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
GPS UNREL INCLUDING WAAS, GBAS, AND ADS-B
MAY NOT BE AVBL WI A 50 NM RADIUS CENTERED AT 394900N
1044000W OR ALL QUADRANTS OF THE DEN VOR. FROM SFC - UP TO
FL400.
22JAN22/0500 01FEB22/0500 KZDV A0022/22
MAY NOT BE AVBL WI A 50 NM RADIUS CENTERED AT 394900N
1044000W OR ALL QUADRANTS OF THE DEN VOR. FROM SFC - UP TO
FL400.
22JAN22/0500 01FEB22/0500 KZDV A0022/22
Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
Spacepope wrote:gabik001 wrote:32andBelow wrote:There’s lot of Air Force bases in Colorado might be some jamming in an exercise
I experienced a TPMS malfuctioning during my summer trip via Colorado. Tire sensors couldn't communicate with TPMS computer because of high level radio waves in certain areas (for e.g Colo Springs). It sounds like a fairy tale but believe me, I am certified radio technician and I know what I am talking about.
Weird. Maybe that doesn’t happen to us COS locals.
Jam proof tires ftw!
It happened once by AF Academy Airfield but maybe it was coincidence. Actually Toyota has only one TPMS computer antenna for all sensors (installed behind center console) so very strong signals can interfere. Some TPMS systems has 4 separate antennas installed in the quarter panels so antennas are very close to the sensors.
Re: KDEN GPS, Transponder, ADS-B Anomalies 1/21/2022
Sounds like another USAF jamming test. I've been a victim of this once - right over LAX. They are obnoxious. You can actually call on Guard to tell them to stop.
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