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Thread: Show / Describe your FR24 hardware

  1. #21
    Purser
    Join Date
    Mar 2015
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    Mojave Desert, USA
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    133
    I'm wondering if the antenna is a bit too low behind the wifi grid antenna.
    I think it's more a function of that pesky mountain range to the Southwest, between me and the ocean. However, I regularly get 320+ NM in the other 3 directions so all is good for now.
    F-KDAG1

  2. #22
    Team FR24 Mike's Avatar
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    Feb 2010
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    Sweden
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    Quote Originally Posted by Patrick Reeves View Post
    FR24 feeder here.
    Thanks for the pictures. Very nice installation!

  3. #23
    Flight attendant
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    Oct 2015
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    Antas, Almeria, Spain
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    [QUOTE=Patrick Reeves;68367]FR24 feeder here. I doubled the length of the ethernet net/router cable provided by FR which allowed me to locate the box next to an exterior wall near the outside antenna:

    Went to extra lengths to make sure the GPS antenna had a full view of the sky:
    Standard issue FR24 1090 MHZ ant. ~20 ft above ground:[QUOTE]

    Patrick, I like your way of thinking as CAT5/6 for 10/100Mb cable can be run over far greater lengths without loss than the Antenna Cable.

    In addition, if the FR24 Receiver was mast mounted in a weather proof box, you could use 3 AWG DC Cable up to 30 meters to operate the receiver on the mast at the required 5VDC 1AMP with only 1% loss.

    This would also enable you to create a flat platform on the mast to mount the FR24 GPS receiver....

    The cost savings over having to extend the antenna cable, add a pre-amp, DC Injector etc. is significant.

    Demon (Newbie)

  4. #24
    Flight attendant
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    Oct 2015
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    Antas, Almeria, Spain
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    83

    New Mast (Stage 1)

    Finally got around to erecting first stage of the new mast at 5 meters, will test over next day or two to examine results, if need be, I still have another 4m length of mast to make it 9 metres if I need to raise it a bit further.

    In the images, the lower of the two boxes, the FR24 Receiver is in the top box. I decided to separate them to reduce heat in each box, they will also be sprayed white as here in Antas the sun can get very hot, even over the winter months... if heat does become an issue, I will get a PC Fan, fit it in the box with the receiver and power it from the USB Ext Port.

    I have run 20 metres of Power Cable and 20 metres of Cat5e Cable from my apartment up onto the roof as this solution means no loss of data in the Cat5e cable from receiver to box and the power is Mains Voltage allowing me to install more equipment such as another receiver or amplifier etc.


  5. #25
    Flight attendant
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    Oct 2015
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    Antas, Almeria, Spain
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    83
    I finally got the good weather and the time to install the additional 4mtr of Mast, so now at 9mtrs (29ft), the GPS receiver now mounted on one of the brackets to give better view of the sky.

    Overall it has NOT extended the reach by that much distance in those areas where mountains are located between 100-300km from my location, however over the last 24hrs monitoring it does appear to be getting more 'positions' reported in all directions. I have uploaded a map of the 'reach' from Virtual Radar with a legend for clarity.

    New 9m Mast.jpg
    If life is a stage, most of us are unrehearsed...!

  6. #26
    Passenger mdfavionics's Avatar
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    Dec 2015
    Location
    Kingwood, Texas
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    19
    My install at work.

    http://rotate.aero/forum/gns-5890-ad...b-receiver#151

    A vid about my install at the house is also on the page.

    T-KIAH6 and T-KIAH9

  7. #27
    Purser Responder's Avatar
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    Jun 2010
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    T-EGBB16
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    This is my current setup without a Filter or Pre-Amp. Although, once HAB Supplies has new stock of their SAW Filter and Pre-Amp (hopefully tomorrow Feb 1st) I shall be adding that and will add another image of the comparison of my receiving range.

    6dB Collinear Antenna from Bulgaria placed 30ft high.
    Antenna.jpg

    9mtrs of WF100 Cable From Antenna into Dongle and Dongle direct into Raspi2 Mod B. A PC Fan can be seen behind in which I switch on once Dongle temp has exceeded 30 degrees celcius. A wired temp sensor is taped to the rear of the Dongle :-)
    Raspi2B_1.jpg

    This is a screen shot of VRS with Range Rings at 25nm increments up to 200nm.
    VRS Display 31_01_2016.png

    This is a screen shot of VRS Altitude Range at 25nm increments up to 200nm.
    VRS Range 31_01_2016.jpg
    T-EGBB16

    Hardware: NooElec DVB-T2 Dongle, Raspi Pi2 Mod B, 6dB Collinear Antenna, Nevis Pre-Amp & 1090mhz SAW Filter, 9mtrs WF100 Cable and 28ft Mast.
    Software: Rasbain Jessie Lite, FR24 Feeder, Dump1090mutab and VRS.
    Stats for Mar 18, 2016. Uptime:100%. Aircraft seen:2,012. Positions Reported:486,817. Maximum Distance:243nm (Stats provided by FR24)

  8. #28
    Passenger bjd's Avatar
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    Aug 2015
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    EHDR / EHLW
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    I just started feeding to FR24 today (T-EHLW33). I've been feeding to other sites already for a while.
    My setup is an old dell laptop with usb dvb-t dongle and a simple antenna folded from a piece of electrical wire.
    Everything is mounted indoors on the attic, which is sadly limiting the range somewhat, but I still quite decent I think.

    2016-02-08-220213_2560x1440_scrot.png

    The red spot is the direction of Amsterdam Schiphol airport.

  9. #29
    Flight attendant
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    Jan 2015
    Location
    F-SMZO2, Paramaribo, Suriname
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    79

    F-SMZO2

    Receiver(s)
    FR24 receiver

    Antenna(s)
    FR24 supplied 1090 MHz

    Software
    Virtual Radar Server
    ADSB Scope
    ModeSMixer

    Range
    FR24 Receiver range from VRS with Range Rings at 25nm increments up to 225nm.


    The gap to the west is caused by my neighbors two story house with a large roof (almost a whole floor in height )
    The gap to the north-west is from a park with tall palm trees across the street.
    As there is no east-west traffic in range of the feeder there is a nice gap towards the south.

    FR24 Receiver range from VRS with Altitude Range at 25nm increments up to 225nm.


    Setup



    The galvanized steel pipe is 0.47m (1ft 6") above ground level.
    The FR24 antenna base is at at 10.6m (34ft 9") above ground level while the other antennas are at 5m (16ft 4") above ground level.

    The FR24 coax cable is just long enough to reach the top of my window where the feeder is located so that's why I could not put the antenna any higher.

    I plan on moving the PlaneFinder and FligtAware antennas to the top and change the construction resulting in a height of 13.5m (44ft 3") above ground level for the antennas. But it's going to take a lot of planning and work.
    Last edited by GitseBase; 2016-02-14 at 23:53. Reason: gap is NW and not NE

  10. #30
    Flight attendant
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    Jan 2015
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    F-SMZO2, Paramaribo, Suriname
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    79
    Quote Originally Posted by Sam26K View Post
    Nice setup and looks like amazing coverage. Have you considered lightening strikes? You should have a good path to ground with the top aluminum section just in case. Also, you might want to use something more substantial than the plastic cable ties in case of a lightening hit.
    BTW, what is your altitude above sea level?
    Coverage is good but it can be better

    We don't have issues with lightning here but it's an item on my list for the new construction to investigate. For the new setup I will have all the equipment housed inside an enclosure that is attached to the pole. From the house I wil run a cable for power and an Ethernet cable.

    The FR24 GPS that is about 3 meters above the ground shows a reading of -24.8m AMSL
    According to Google Earth the elevation is 7 m


    Quote Originally Posted by Windsurfmaniac View Post
    Don't you were told that no man should serve two masters?! What to say about three?!

    Don't you mean one of the gaps is to northwest?

    The Fr24 antenna is pretty high and you want all of them higher. Don't you have problems with winds and lightining strikes?

    LOL, there will be a position for a 4th :P

    Correct, it's NW and not NE. Changed that.

    Winds will be a problem. The aluminium pipe is smaller in diameter and thus flexibel. When the winds are strong it swings (mainly due to the cables that run to the house) and that's why I plan to attach guy wires.


    Quote Originally Posted by Sam26K View Post
    Actually, the most curious gap is directly to the south inline with the airport. What is going on with that?
    The gap to the south is a result of the flight paths combined with my maximum range. As I stated there is east-west traffic over the southern part of the country.
    In may of last year there were 3 aircraft flying all over the country for meteorological research so I hope they'll return this year.

    Below an indication of the flight paths. (Click for larger image)
    Last edited by GitseBase; 2016-02-15 at 00:33. Reason: Reaction to Sam26K

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