New PAW / OGN station seems to be deaf to FLARM?

[Kevin W]

Hi

I have setup a brand new PAW / OGN station.  Pi 2 + Bridge + NESDR Dongle + follow the instructions for a fresh install of the combined PAW & OGN software.

It is called EGBKE and it is East of EGBK!

It can see Pilot Aware traffic (well my PAW box on the other side of the room anyway), but it hasn't seen any FLARM traffic all afternoon, despite some in the vicinity and being picked up by stations much further away.

I tried a reboot, I tried an update  (http://pilotaware.lode.co.uk/downloads/OGN/README.update), but no change.

I show up on all the OGN maps, but sometimes as Blue, not Green - which I think suggests a software version issue?  I can see my PAW box being uploaded to the OGN network.

Any ideas?

Thanks very much
Kev

8080:

Code: [Select]

RTLSDR OGN RF processor 0.2.6.RPI-GPU/Mar 31 2017

System
Host name ognpaw
Configuration file path+name /home/pi/rtlsdr-ogn-0.2.6/rtlsdr-ogn-paw.conf
Local time 16:35:39
Software 0.2.6.RPI-GPU
CPU load 0.0/0.2/0.4
RAM [free/total] 593.3/970.5 MB
CPU temperature +50.3 ℃
NTP UTC time 16:35:39
NTP est. error 25.6 ms
NTP freq. corr. -2.35 ppm
RTL-SDR device #0
Name Generic RTL2832U OEM
Tuner type R820T
Manufacturer Realtek
Product RTL2838UHIDIR
Serial 00000001
Center frequency 868.303 MHz
Sample rate 1.000 MHz
Frequency correction +0.6 ppm
Life Time 96.7% ppm
RTL Xtal 28.800000 MHz
Tuner Xtal 28.800000 MHz
RF
RF.FreqPlan 1: Europe/Africa
RF.Device 0
RF.SampleRate 1.0 MHz
RF.FreqCorr +0 ppm
RF.FreqRaster 28125 Hz
RF.OffsetTuning 0
Fine calib. FreqCorr +0.6 ppm
RF.PulseFilter.Threshold 0
RF.PulseFilter duty 0.0 ppm
RF.OGN.GainMode 1
RF.OGN.Gain 60.0 dB
RF.OGN.StartTime 0.375 sec
RF.OGN.SensTime 0.850 sec
RF.OGN.SaveRawData 0 sec
RF.GSM.CenterFreq 937.0 MHz
RF.GSM.Gain 35.0 dB
RF.GSM.SensTime 0.250 sec

8081:

Code: [Select]

RTLSDR OGN demodulator and decoder 0.2.6.RPI-GPU/Mar 31 2017

System
Host name ognpaw
Configuration file path+name /home/pi/rtlsdr-ogn-0.2.6/rtlsdr-ogn-paw.conf
Local time 16:36:32
Software RTLSDR-OGN 0.2.6.RPI-GPU
CPU load 0.6/0.3/0.4
RAM [free/total] 592.0/970.5 MB
CPU temperature +50.8 ℃
NTP UTC time 16:36:32
NTP est. error 25.6 ms
NTP freq. corr. -2.35 ppm
Position
Position.Latitude +52.32274 deg
Position.Longitude -000.70622 deg
Position.Altitude 92 m
Position.GeoidSepar +48 m
RF
RF.FreqPlan 1: Europe/Africa
RF input noise +0.6 dB
Demodulator
Demodulator.DetectSNR 10.0 dB
Demodulator.PipeName ogn-rf.fifo
Demodulator.ScanMargin 20.0 kHz
Traffic rates [visible/all]
Aircrafts received over last 12 hours 0/ 0
Aircrafts received over last hour 0/ 0
Aircrafts received over last minute 0/ 0
Positions received over last minute 0/ 0
APRS
APRS.Server[0] -> aprs.glidernet.org:14580
  connected to 85.188.1.173:14580
  connected for 00h38
  KiloBytes sent/received 1/9
APRS.Call EGBKE
APRS.Icon I&
APRS.FilterRange 0.0 km
APRS.Beacon.Interval 300 sec
APRS.Status.Interval 300 sec
APRS.MaxBitError 16 bit
APRS.HighResolution 1
APRS.SAR 1
APRS.PositionInterval 20 sec
APRS.MaxDistError 20 m
APRS.ReportDelay 5 sec
DDB
DDB.RefreshInterval 0
DDB.UseAsWhitelist 0

APRS beacon:
EGBKE>APRS:/163511h5219.36NI00042.37W&/A=000302

APRS status:
EGBKE>APRS:>163511h v0.2.6.RPI-GPU CPU:0.2 RAM:593.5/970.5MB NTP:25.6ms/-2.4ppm +50.3C 0/0Acfts[1h] RF:+0+0.6ppm/+0.25dB

8082:

Code: [Select]

Version 20170916 : Date 2017-09-18 16:36:58 : Station PWEGBKE
P3I Packets OK=1217 NG=68
ICAO Type Dist(KM) Alt(FT) Uplink
401292 PAW 0.00 288 -


[Ben Smith]

Kevin,
Sorry if this seems obvious, but a number of OGN builders have mistakenly ended up buying antenna cables with RP-SMA connectors, the end with the screwed sleeve needs to have a pin in the centre, the RP ones have a hole, they screw together fine but you get no antenna connection.
If this is the case a simple work-around is to snip off a bit of resistor lead or similar wire and use it as a makeshift centre pin.
Looking at your gain your RF noise and CPU load should be quite a lot higher if there was any signal.
The other possibility is a faulty SDR
Ben.

[Keithvinning]

Kev
What OGN antenna are you using
Did it pass all the adjustment tests in the config program
Can send a screenshot

Keith

[Kevin W]

Hi Keith / Ben, Thanks for the replies.

Yes using SMA, not RP-SMA connectors that include the pin (never any silly questions!).

Tried 2 antennas, I had it on a Diamond X50 collinear that is outside on a pole on the chimney most of the afternoon and gets me pretty good range Rx on 1090mhz for ADSB.  This evening I have switched it over to the 868.3 9dbi collinear that I am 'looking after' for you Keith, but in the loft rather than outside.  Obviously little to no FLARM traffic around this evening so will leave it on that antenna for tomorrow.

Stopping the software and doing a GSM scan now looks ok to my untrained eye:

Code: [Select]

Frequency = 920.000MHz..960.200MHz 2.000MHz step, 20 scans
Sampling rate    =    2000000Hz =    2.000MHz
0.250sec per scan
FFT: 1024 bins, 1953.1Hz/bin, 0.256ms/slide
Found Rafael Micro R820T tuner
Exact sample rate is: 2000000.052982 Hz
RTLSDR::Open(0,940100000,2000000) => Generic RTL2832U OEM,  940.100 MHz, 2.000 Msps
RTLSDR::Gain[29] =  +0.0  +0.9  +1.4  +2.7  +3.7  +7.7  +8.7 +12.5 +14.4 +15.7 +16.6 +19.7 +20.7 +22.9 +25.4 +28.0 +29.7 +32.8 +33.8 +36.4 +37.2 +38.6 +40.2 +42.1 +43.4 +43.9 +44.5 +48.0 +49.6 [dB]
Open(0, 940100000, 2000000) OK
Tuner crystal correction set to 0 ppm
Tuner gain set to 20.0 dB (device reports 20.0 dB)

935.200MHz:   -0.8dB:  +0.41  +0.17 [ppm]
935.400MHz:   +3.2dB:  +0.57  +0.54  +0.60  +0.54  +0.68  +0.57 [ppm]
935.800MHz:   +6.1dB:  +0.57  +0.72  +0.74  +0.60  +0.62 [ppm]
936.000MHz:   +5.0dB:  +0.41  +0.58  +0.57  +1.04  +0.51 [ppm]
936.200MHz:   +3.3dB:  -0.56  -0.41  -0.35  -0.41  -0.44 [ppm]
936.600MHz:   +6.4dB:  -0.34  -0.39  -0.36  -0.37  -0.40 [ppm]
937.000MHz:  +18.6dB:  -0.39  -0.36  -0.35  -0.36  -0.36 [ppm]
937.200MHz:  +11.0dB:  -0.39  -0.38  -0.41  -0.35  -0.43 [ppm]
937.600MHz:  +16.4dB:  -0.31  -0.34  -0.35  -0.27  -0.33  -0.33 [ppm]
938.000MHz:   +0.1dB:  +0.50  -0.30  -0.25  -0.47 [ppm]
938.600MHz:  +10.1dB:  -0.35  -0.39  -0.36  -0.34  -0.32 [ppm]
938.800MHz:   +7.9dB:  -0.27  -0.35  -0.39  -0.38  -0.30  -0.36 [ppm]
939.000MHz:   +7.3dB:  -0.31  -0.36  -0.36  -0.42  -0.44 [ppm]
939.400MHz:   +0.3dB:  -0.57  -0.37  -0.46  -0.14  -0.30 [ppm]
939.600MHz:   +8.0dB:  -0.26  -0.30  -0.25  -0.32  -0.27  -0.30 [ppm]
952.400MHz:   +1.2dB:  +0.38  +0.60  +0.33  +0.81 [ppm]
955.200MHz:   +3.4dB:  -0.29  -0.24  -0.35  -0.37  -0.37  -0.33 [ppm]
955.400MHz:   +5.9dB:  -0.30  -0.40  -0.34  -0.38  -0.29 [ppm]
955.600MHz:   -1.4dB:  -0.18  +0.07 [ppm]
955.800MHz:   +1.5dB:  -0.74  -0.47 [ppm]
956.000MHz:  +13.8dB:  -0.27  -0.27  -0.25  -0.24  -0.25  -0.25 [ppm]
956.400MHz:   +7.4dB:  -0.38  -0.52  -0.47  -0.38  -0.35  -0.40 [ppm]
956.800MHz:   -0.5dB:  -0.23  -0.22  -0.28  -0.36  -0.37 [ppm]
957.000MHz:   +4.2dB:  -0.55  -0.35  -0.35  -0.23  -0.38 [ppm]
957.400MHz:   +0.8dB:  -0.15  -0.28  -0.24 [ppm]
958.000MHz:   +5.7dB:  -0.25  -0.31  -0.30  -0.29  -0.30  -0.22 [ppm]
958.200MHz:   +8.1dB:  +0.55  +0.57  +0.52  +0.54  +0.54 [ppm]
958.400MHz:   +1.2dB:  +0.44  +0.90  +0.40  +0.48 [ppm]
958.600MHz:   +5.3dB:  +0.93  +0.63  +0.66  +0.62  +0.62 [ppm]
959.000MHz:  +20.1dB:  +0.63  +0.60  +0.58  +0.59  +0.61  +0.58 [ppm]
959.400MHz:   +4.2dB:  +0.62  +0.54  +0.73  +0.71  +0.74 [ppm]
959.600MHz:   +7.9dB:  +0.66  +0.57  +0.62  +0.58  +0.66 [ppm]
Receiver Xtal correction = 0-0.150 =  -0.150 (0.299) ppm [79]
Note: when the receiver warms up the Xtal may drift 5-10ppm

Turning the gain right down still picks up some signals:

Code: [Select]

Frequency = 920.000MHz..960.200MHz 2.000MHz step, 20 scans
Sampling rate    =    2000000Hz =    2.000MHz
0.250sec per scan
FFT: 1024 bins, 1953.1Hz/bin, 0.256ms/slide
Found Rafael Micro R820T tuner
Exact sample rate is: 2000000.052982 Hz
RTLSDR::Open(0,940100000,2000000) => Generic RTL2832U OEM,  940.100 MHz, 2.000 Msps
RTLSDR::Gain[29] =  +0.0  +0.9  +1.4  +2.7  +3.7  +7.7  +8.7 +12.5 +14.4 +15.7 +16.6 +19.7 +20.7 +22.9 +25.4 +28.0 +29.7 +32.8 +33.8 +36.4 +37.2 +38.6 +40.2 +42.1 +43.4 +43.9 +44.5 +48.0 +49.6 [dB]
Open(0, 940100000, 2000000) OK
Tuner crystal correction set to 0 ppm
Tuner gain set to 20.0 dB (device reports 20.0 dB)

935.200MHz:   -0.8dB:  +0.41  +0.17 [ppm]
935.400MHz:   +3.2dB:  +0.57  +0.54  +0.60  +0.54  +0.68  +0.57 [ppm]
935.800MHz:   +6.1dB:  +0.57  +0.72  +0.74  +0.60  +0.62 [ppm]
936.000MHz:   +5.0dB:  +0.41  +0.58  +0.57  +1.04  +0.51 [ppm]
936.200MHz:   +3.3dB:  -0.56  -0.41  -0.35  -0.41  -0.44 [ppm]
936.600MHz:   +6.4dB:  -0.34  -0.39  -0.36  -0.37  -0.40 [ppm]
937.000MHz:  +18.6dB:  -0.39  -0.36  -0.35  -0.36  -0.36 [ppm]
937.200MHz:  +11.0dB:  -0.39  -0.38  -0.41  -0.35  -0.43 [ppm]
937.600MHz:  +16.4dB:  -0.31  -0.34  -0.35  -0.27  -0.33  -0.33 [ppm]
938.000MHz:   +0.1dB:  +0.50  -0.30  -0.25  -0.47 [ppm]
938.600MHz:  +10.1dB:  -0.35  -0.39  -0.36  -0.34  -0.32 [ppm]
938.800MHz:   +7.9dB:  -0.27  -0.35  -0.39  -0.38  -0.30  -0.36 [ppm]
939.000MHz:   +7.3dB:  -0.31  -0.36  -0.36  -0.42  -0.44 [ppm]
939.400MHz:   +0.3dB:  -0.57  -0.37  -0.46  -0.14  -0.30 [ppm]
939.600MHz:   +8.0dB:  -0.26  -0.30  -0.25  -0.32  -0.27  -0.30 [ppm]
952.400MHz:   +1.2dB:  +0.38  +0.60  +0.33  +0.81 [ppm]
955.200MHz:   +3.4dB:  -0.29  -0.24  -0.35  -0.37  -0.37  -0.33 [ppm]
955.400MHz:   +5.9dB:  -0.30  -0.40  -0.34  -0.38  -0.29 [ppm]
955.600MHz:   -1.4dB:  -0.18  +0.07 [ppm]
955.800MHz:   +1.5dB:  -0.74  -0.47 [ppm]
956.000MHz:  +13.8dB:  -0.27  -0.27  -0.25  -0.24  -0.25  -0.25 [ppm]
956.400MHz:   +7.4dB:  -0.38  -0.52  -0.47  -0.38  -0.35  -0.40 [ppm]
956.800MHz:   -0.5dB:  -0.23  -0.22  -0.28  -0.36  -0.37 [ppm]
957.000MHz:   +4.2dB:  -0.55  -0.35  -0.35  -0.23  -0.38 [ppm]
957.400MHz:   +0.8dB:  -0.15  -0.28  -0.24 [ppm]
958.000MHz:   +5.7dB:  -0.25  -0.31  -0.30  -0.29  -0.30  -0.22 [ppm]
958.200MHz:   +8.1dB:  +0.55  +0.57  +0.52  +0.54  +0.54 [ppm]
958.400MHz:   +1.2dB:  +0.44  +0.90  +0.40  +0.48 [ppm]
958.600MHz:   +5.3dB:  +0.93  +0.63  +0.66  +0.62  +0.62 [ppm]
959.000MHz:  +20.1dB:  +0.63  +0.60  +0.58  +0.59  +0.61  +0.58 [ppm]
959.400MHz:   +4.2dB:  +0.62  +0.54  +0.73  +0.71  +0.74 [ppm]
959.600MHz:   +7.9dB:  +0.66  +0.57  +0.62  +0.58  +0.66 [ppm]
Receiver Xtal correction = 0-0.150 =  -0.150 (0.299) ppm [79]
Note: when the receiver warms up the Xtal may drift 5-10ppm

Turning the gain up does give the odd inconsistency:

939.800MHz:  +12.8dB: +157.07 +164.81 [ppm]
958.800MHz:  +21.4dB: -15.26 -12.18 -12.31 -16.32 [ppm]

Code: [Select]

Frequency = 920.000MHz..960.200MHz 2.000MHz step, 20 scans
Sampling rate    =    2000000Hz =    2.000MHz
0.250sec per scan
FFT: 1024 bins, 1953.1Hz/bin, 0.256ms/slide
Found Rafael Micro R820T tuner
Exact sample rate is: 2000000.052982 Hz
RTLSDR::Open(0,940100000,2000000) => Generic RTL2832U OEM,  940.100 MHz, 2.000 Msps
RTLSDR::Gain[29] =  +0.0  +0.9  +1.4  +2.7  +3.7  +7.7  +8.7 +12.5 +14.4 +15.7 +16.6 +19.7 +20.7 +22.9 +25.4 +28.0 +29.7 +32.8 +33.8 +36.4 +37.2 +38.6 +40.2 +42.1 +43.4 +43.9 +44.5 +48.0 +49.6 [dB]
Open(0, 940100000, 2000000) OK
Tuner crystal correction set to 0 ppm
Tuner gain set to 50.0 dB (device reports 50.0 dB)

923.800MHz:  +14.1dB:  +0.73  +0.65  +0.67  +0.69  +0.79 [ppm]
935.200MHz:  +18.5dB:  +0.49  +0.46  +0.54  +0.51  +0.47 [ppm]
935.400MHz:  +24.9dB:  +0.64  +0.63  +0.62  +0.62  +0.64  +0.62 [ppm]
935.600MHz:  +17.5dB:  +0.71  +0.73  +0.77  +0.81  +0.68  +0.73 [ppm]
935.800MHz:  +27.4dB:  +0.68  +0.69  +0.65  +0.63  +0.67 [ppm]
936.000MHz:  +27.2dB:  +0.63  +0.82  +0.57  +0.62  +0.69 [ppm]
936.200MHz:  +24.5dB:  -0.40  -0.37  -0.36  -0.34  -0.34 [ppm]
936.600MHz:  +28.3dB:  -0.31  -0.32  -0.31  -0.34  -0.35 [ppm]
937.000MHz:  +41.0dB:  -0.33  -0.34  -0.35  -0.33  -0.34  -0.34 [ppm]
937.200MHz:  +33.2dB:  -0.27  -0.28  -0.28  -0.25  -0.26 [ppm]
937.600MHz:  +38.7dB:  -0.28  -0.28  -0.28  -0.27  -0.28 [ppm]
938.000MHz:  +21.0dB:  -0.17  -0.38 [ppm]
938.400MHz:  +15.9dB:  +0.26  -0.85 [ppm]
938.600MHz:  +32.2dB:  -0.39  -0.36  -0.32  -0.37  -0.37 [ppm]
938.800MHz:  +31.0dB:  -0.31  -0.32  -0.30  -0.32  -0.31 [ppm]
939.000MHz:  +28.6dB:  -0.32  -0.33  -0.33  -0.24  -0.28 [ppm]
939.400MHz:  +20.6dB:  -0.39  -0.26  -0.51  -0.46  -0.31  -0.42 [ppm]
939.600MHz:  +30.9dB:  -0.26  -0.29  -0.27  -0.28  -0.27 [ppm]
939.800MHz:  +12.8dB: +157.07 +164.81 [ppm]
952.400MHz:  +18.5dB:  +0.55  +0.58  +0.58  +0.53  +0.50  +0.55 [ppm]
955.200MHz:  +23.2dB:  -0.29  -0.26  -0.31  -0.29  -0.24 [ppm]
955.400MHz:  +26.9dB:  -0.29  -0.23  -0.24  -0.30  -0.27 [ppm]
955.600MHz:  +15.3dB:  -0.32  -0.64  -0.44  -0.33  -0.12 [ppm]
955.800MHz:  +20.7dB:  -0.76  -0.75  -0.92  -0.55 [ppm]
956.000MHz:  +35.2dB:  -0.28  -0.24  -0.24  -0.25  -0.24 [ppm]
956.400MHz:  +28.2dB:  -0.26  -0.21  -0.33  -0.31  -0.27 [ppm]
956.800MHz:  +17.7dB:  -0.44  -0.32  -0.28  -0.26  -0.32 [ppm]
957.000MHz:  +24.8dB:  -0.28  -0.31  -0.25  -0.24  -0.31  -0.27 [ppm]
957.400MHz:  +19.4dB:  -0.21  -0.41  -0.30  -0.26  -0.08  -0.27 [ppm]
957.600MHz:  +14.3dB:  -0.12  -0.17 [ppm]
957.800MHz:  +14.1dB:  -0.72  -0.09 [ppm]
958.000MHz:  +26.4dB:  -0.18  -0.25  -0.25  -0.23  -0.21 [ppm]
958.200MHz:  +28.8dB:  +0.57  +0.59  +0.58  +0.57  +0.59 [ppm]
958.400MHz:  +21.0dB:  +0.61  +0.63  +0.40  +0.57  +0.70 [ppm]
958.600MHz:  +26.1dB:  +0.56  +0.59  +0.66  +0.66  +0.64  +0.59 [ppm]
958.800MHz:  +21.4dB: -15.26 -12.18 -12.31 -16.32 [ppm]
959.000MHz:  +41.6dB:  +0.67  +0.64  +0.64  +0.65  +0.64 [ppm]
959.400MHz:  +25.5dB:  +0.71  +0.70  +0.68  +0.69  +0.79  +0.63 [ppm]
959.600MHz:  +29.2dB:  +0.68  +0.67  +0.70  +0.67  +0.70 [ppm]
959.800MHz:  +16.4dB:  +0.79  +0.52  +0.55 [ppm]
Receiver Xtal correction = 0-0.015 =  -0.015 (0.372) ppm [96]
Warning: measurements appear inconsistent:
please retry with better initial estimate or with lower gain to reduce distortions
Note: when the receiver warms up the Xtal may drift 5-10ppm


[Kevin W]

Looking at your gain your RF noise and CPU load should be quite a lot higher if there was any signal.

Not sure what was connected when I did those pastes in the first pic, but now, the external X50 gives me about +3.0db of RF Input Noise, the loft 868.3 9dbi gives me +6.0db of RF Input Noise.

Cheers
Kev

[Admin]

Hi Kev

Looks like the quality of reception is very low power
you did pick up some gliders today, here are your traces

http://flarmrange.onglide.com/#EGBKE,max,all,52.3227_-0.7062,11,#00990000:#009900ff,circles;

Compare this to everybody today overlapping your receiver
http://flarmrange.onglide.com/#,max,today,52.340533_-0.734696,10,#00990000:#009900ff,circles;

And the same for PilotAware reception
http://flarmrange.onglide.com/#PWEGBKE,max,today,52.3227_-0.7062,10,#00990000:#009900ff,circles;

Versus everybody
http://flarmrange.onglide.com/#PW%,max,today,52.3227_-0.7062,10,#00990000:#009900ff,circles;

Could be many reasons, Antenna location, cabling ...

Thx
Lee

[Kevin W]

Thanks Lee,

Yes I saw some of the traffic come through today, and am starting to understand the two different 'receivers' in OGN terms (PW and non PW).

The PAW aerial I am not surprised, at the moment it is just next to me in the study.  The FLARM aerial is a bit more disappointing, being an X50 on a mast - but I guess that's the problem with a non-tuned aerial, with probably getting on for 10m of coax (all be it seriously thick stuff) before the SDR.

I also need to appreciate the difference between ADSB and Flarm traffic - I get 'great' ADSB rx from the X50, but there is a lot more of it, it is broadcast with at least 25 watts, and lots of it is broadcast from a much higher altitude - all very different to FLARM!

Working on plans for getting a PAW and FLARM specific aerial outside above the roof line....

Cheers
Kev

[exfirepro]

Kev,

OK, first thing, although your X50 is 'off frequency' for FLARM traffic, for receive only there shouldn't be a vastly significant difference in performance, though the OGN collinear will obviously be better. My station (PW) Balerno is running in my loft on a 9dBi collinear and receives gliders out to about 80Km (across on the north side of the Edinburgh CTA).

Of more significance is the fact that 1090 MHz signals are significantly stronger than 25 Watts. They generally vary from about 70 Watts for older GA transponders up to 500 Watts at the antenna for Commercial mode S /ADSB, so up to 50,000 times stronger than the 'average' 10mW FLARM transmission.

That still doesn't account for the extreme difference between your PAW/OGN station and all the others around you though, so we need to get to the bottom of what is going on.

First thing is to minimise coax loss by moving the SDR dongle up as near as possible to the antenna and using a USB cable to transfer the data from the SDR down to the Raspberry Pi. If the cable length is 5 metres or more, make sure to use an 'active' USB cable.

It's also worth moving the Raspberry Pi up closer to your antenna location as this will shorten the length of your P3i transmit antenna co-ax, thereby minimising transmission losses. Longer Ethernet cables aren't usually a problem.

It would definitely be worth trying to get your antennas outside, though mine are still running inside my loft with a concrete tiled roof as the station is still primarily 'experimental' and local PAW traffic levels are very low compared to 'down south'.

Hope you get things sorted out.

Regards

Peter

[Kevin W]

Hi All

I am pleased to say my OGN-R station is no longer deaf!   It is far from perfect, but it is now above my 'silver foil insulation' lined loft conversation and just has tiles between it and the outside world.  I am working on getting the aerial outside, but that is harder to do!

A question though, flarmrange.onglide.com seems to be showing both FLARM and PAW traffic that my station has seen, that is not shown on the overall coverage map. 

For example , in the picture below I saw quite a bit of PAW traffic just south of me over Wellingborough:

https://imgur.com/qU8gYNS

but in the overall view it doesn't exist:

https://imgur.com/JXSpxn2


and the same for FLARM, I saw traffic over Wellingborough and to the North of Earls Barton:

https://imgur.com/2cSKpFr

that isnt seen on the full view:

https://imgur.com/WVbH9Rn

For the purposes of these images I have made the normal 'light green' much darker, to make sure it isn't just that it is so light green it can't be seen.

Any ideas?

Cheers
Kev

[Keithvinning]

Are they both reporting for the same timeframe? Just a thought

[Kevin W]

Are they both reporting for the same timeframe? Just a thought

Thanks Keith, they are all set to 'today' in the menu, and all refreshed, so should be?

Cheers
Kev

[exfirepro]

Kev,

Great to see you are now getting significant improvements in reception. In my experience, it takes time for the heat map to build up, depending of course on the density of local PAW and FLARM traffic, even where you are. My own station suffers from a distinct lack of close range traffic due to the Edinburgh CTA being between me and the main gliding area round Portmoak. Just give it time!

Best Regards

Peter