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  • Originally posted by Jarod View Post
    Interesting about F-EHKD1, there are no tall buildings north of my location that are higher where i am planning on putting another receiver.
    Or move the current with your permission, about 90 meters tall.

    Well there are two: and they are radio masts, that begs a question: Would a FR24 receiver work in a radio mast with kilowatts of FM/DVB-T/DAB/UMTS and more transmitters?
    We can provide a filter if there is a transmitter nearby destroying the reception.

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    • Originally posted by Mike View Post
      We can provide a filter if there is a receiver nearby destroying the reception.
      But have you (tested) any FR24 receivers in big radio masts?

      Comment


      • Originally posted by Jarod View Post
        Use the REG or TYPE of the aircraft as you do in Europe?
        Not sure what you mean. In Europe most MLAT flights transmit a callsign that we can match on. In USA we can match on REG in same cases if we get it in advance. In Brazil we have neither of these two.

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        • http://www.flightradar24.com/NASTY1/2e90b93 F16 via MLAT
          http://x264.nl/dump/nasty1-2014-03-17-f16-mlat.jpg

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          • Originally posted by Mike View Post
            Not sure what you mean. In Europe most MLAT flights transmit a callsign that we can match on. In USA we can match on REG in same cases if we get it in advance. In Brazil we have neither of these two.
            TYPE:
            http://www.flightradar24.com/GLF4/2e8df7c
            http://www.flightradar24.com/C550/2e90ba3
            http://www.flightradar24.com/C56X/2e90ac2

            As for callsign/reg, do you use BDS2,0 as well?
            "When VRS reads a callsign from what might be a BDS2,0 message it marks it as "suspect" and puts an asterisk against it on the display. Once a callsign is read from an ADS-B message it throws the BDS2,0 callsign away and only uses the ADS-B one from that point onwards, even if more BSD2,0 messages are received." ( http://www.virtualradarserver.co.uk/...ngOptions.aspx )

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            • Originally posted by Jarod View Post
              TYPE:
              http://www.flightradar24.com/GLF4/2e8df7c
              http://www.flightradar24.com/C550/2e90ba3
              http://www.flightradar24.com/C56X/2e90ac2

              As for callsign/reg, do you use BDS2,0 as well?
              "When VRS reads a callsign from what might be a BDS2,0 message it marks it as "suspect" and puts an asterisk against it on the display. Once a callsign is read from an ADS-B message it throws the BDS2,0 callsign away and only uses the ADS-B one from that point onwards, even if more BSD2,0 messages are received." ( http://www.virtualradarserver.co.uk/...ngOptions.aspx )
              Not sure what TYPE has to do with a route. If and aircraft transmit Hex: ABC123 we can match it as TYPE A319 in our aircraft database. But I don't understand how we can get the route from TYPE A319?

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              • Originally posted by Mike View Post
                Not sure what TYPE has to do with a route. If and aircraft transmit Hex: ABC123 we can match it as TYPE A319 in our aircraft database. But I don't understand how we can get the route from TYPE A319?
                True about route, but i forgot to mention all the unknown tags.... that seems rather... annoying. Of course no hex or callsign no route.

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                • Originally posted by Jarod View Post
                  But have you (tested) any FR24 receivers in big radio masts?
                  Yes.

                  https://twitter.com/Lanzaroteradar/s...82680477515776

                  Comment


                  • Cool!

                    We have some masts like these in The Netherlands: http://radio-tv-nederland.nl/mast8/lopik-toren.jpg (355m)
                    Only i guess we are going to need two receivers, each to cover 180 degrees on each side; http://www.radio-tv-nederland.nl/mas...dvbt-fm931.jpg

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                    • Originally posted by Jarod View Post
                      Cool!

                      We have some masts like these in The Netherlands: http://radio-tv-nederland.nl/mast8/lopik-toren.jpg (355m)
                      Only i guess we are going to need two receivers, each to cover 180 degrees on each side; http://www.radio-tv-nederland.nl/mas...dvbt-fm931.jpg
                      well maybe you should start applying and see whether it gets approved?

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                      • Originally posted by North Borneo Radar View Post
                        well maybe you should start applying and see whether it gets approved?
                        That's no issue, first will be doing some tests once the Airspy is released. Will bring that and a laptop into some towers and do some testing.
                        So hopefully more about that in a couple of months.

                        Comment


                        • Originally posted by Jarod View Post
                          That's no issue, first will be doing some tests once the Airspy is released. Will bring that and a laptop into some towers and do some testing.
                          So hopefully more about that in a couple of months.
                          Oh? Not a FR24 receiver for MLAT? I was under the impression you were going to get another FR24 receiver(s). Ah right the Airspy, interesting. Keep us updated then. cheers.

                          Comment


                          • Originally posted by North Borneo Radar View Post
                            Oh? Not a FR24 receiver for MLAT? I was under the impression you were going to get another FR24 receiver(s). Ah right the Airspy, interesting. Keep us updated then. cheers.
                            Of course the only goal is MLAT, but you can't simple grab a FR24 from the shelve to do some testing.
                            And access to these towers is highly restricted these days, so it all has to be planned and asked for.

                            I have tons of locations, but i have no idea how far the people of FR24 want to go.

                            I am personally very interested in getting MLAT to work for helicopters going from land to the north sea oil rigs and ships. But they fly very low, so any receiver on land should be on very high locations. For example in Ijmuiden, The Netherlands, there are 180 meter high chimneys about 4KM from the sea shore. http://x264.nl/nuonvelsen.jpg
                            When permission is granted, first testing to get WiFi there is required, but that should be no issues under 30 km line of sight. Options to think of enough, just need to do testing testing and more testing.

                            Comment


                            • MLAT4 is working in Brazil!

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                              • Originally posted by daniales View Post
                                MLAT4 is working in Brazil!
                                Nice! At least show registration instead of 'unknown'!

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