Radarspotting

Mode-S Software => Virtual Radar Server => Topic started by: tarbat on January 08, 2016, 04:11:21 PM

Title: How to show aircraft at correct position
Post by: tarbat on January 08, 2016, 04:11:21 PM
Just started using Virtual Radar Server, and generally impressed, as it comes closest to display I'm looking for.  The only problem I have is that the aircraft are displayed on the map too far north of their real position.  Take this EasyJet, just departed EGPE, but the aircraft symbol shows about 50 miles north of that on the map.


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Title: Re: How to show aircraft at correct position
Post by: Anmer on January 08, 2016, 04:13:38 PM
The aircraft icon is sitting on top of a stalk line, the bottom of which shows the aircraft location.

There's a VRS option to turn off the stalk.
Title: Re: How to show aircraft at correct position
Post by: tarbat on January 08, 2016, 04:28:19 PM
Thanks, got it.  Much better.  Even better, able to show Planeplotter MLAT'ed aircraft in VRS - excellent.

I have to say that VRS is an excellent bit of software, great for replacing the Planeplotter display, which I've never got on with.
Title: Re: How to show aircraft at correct position
Post by: Graham Bell on January 09, 2016, 03:24:35 PM
Quote from: Anmer on January 08, 2016, 04:13:38 PM
The aircraft icon is sitting on top of a stalk line, the bottom of which shows the aircraft location.

There's a VRS option to turn off the stalk.
Where do I find this option please?
Regards-
G.B.
Title: Re: How to show aircraft at correct position
Post by: tarbat on January 09, 2016, 03:36:04 PM
Quote from: Graham Bell on January 09, 2016, 03:24:35 PMWhere do I find this option please?

On the website - MENU - OPTIONS - AIRCRAFT - untick SHOW ALTITUDE STICK

With some adjustment, you can get a very good display setup in VRS
(http://c2.staticflickr.com/2/1453/24161467822_956c05fc65_c_d.jpg) (http://www.flickr.com/photos/tarbat/24161467822/sizes/o/)
Title: Re: How to show aircraft at correct position
Post by: Anmer on January 09, 2016, 03:42:08 PM
Quote from: tarbat on January 09, 2016, 03:36:04 PM
With some adjustment, you can get a very good display setup in VRS

Configuration might be more accurate  :)
Title: Re: How to show aircraft at correct position
Post by: tarbat on January 09, 2016, 04:09:14 PM
Quote from: Anmer on January 09, 2016, 03:42:08 PMConfiguration might be more accurate  :)

Adjustment and configuration ;)  Whatever it is, this is the closest I've got to an ANRB type display on any software, with some great configuration options that allow me to adjust exactly what I want to see.

(http://c2.staticflickr.com/2/1590/23644659194_b991bdc6f6_d.jpg) (http://www.flickr.com/photos/tarbat/23644659194/sizes/o/)
Title: Re: How to show aircraft at correct position
Post by: Graham Bell on January 09, 2016, 04:14:56 PM
Thank you gentlemen!
Regards-
G.B.
Title: Re: How to show aircraft at correct position
Post by: APO1972 on April 18, 2016, 03:24:52 PM
Hello to all,
Today i observed an error when i tested one RTL dongle with setup : dump1090 --> modesmixer2 --> Basestation(version 1.84) --> VRS. Only
targets on ground , who located only few miles (7 nm) from my roof antenna , showing in wrong position thousands miles away! Over Antlantic Ocean!!!
How can i solve it?
Title: Re: How to show aircraft at correct position
Post by: Anmer on April 18, 2016, 03:27:03 PM
Were the only aircraft in the wrong positions those on the ground?
Title: Re: How to show aircraft at correct position
Post by: APO1972 on April 18, 2016, 04:21:56 PM
Yes the most of ground targets has wrong position.
Title: Re: How to show aircraft at correct position
Post by: Anmer on April 18, 2016, 04:24:24 PM
Can you view the aircraft on Dump1090 without using ModesMixer2, BaseStation and VRS?  If you can, are they in the wrong position too?
Title: Re: How to show aircraft at correct position
Post by: APO1972 on April 18, 2016, 04:59:17 PM
Now i m not home, I' ll check and tell you.As remember on Basestation screen all is in right position. In my mind i have maybe a silly though...maybe my windows country settings for the numbers, affecting VRS program?  You know i m Greek... The use of ","  and "."  are different than US and UK system.
Title: Re: How to show aircraft at correct position
Post by: APO1972 on April 19, 2016, 07:49:34 AM
Good morning , because one picture is more than 1000 words . See the attachments when the usb dongle feeding dump1090.
The first was a landing a/c , on the ground , see the strange constant -50ft altitude then after when speed is 0kts dissapeared.
The second another at parking stand , see the faulty longtitude.
At the third snapshot the same aircraft that the time became airborn so the coordinates as you can see fixed.

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Title: Re: How to show aircraft at correct position
Post by: Anmer on April 19, 2016, 08:01:19 AM
Thanks.

I am guessing that Dump1090 may be decoding On Ground messages incorrectly?  Since only a small percentage of users are close enough to airports to receive On Ground messages, this may have gone unnoticed.

I am aware that there were similar issues with other decoding solutions and we still see crazy aircraft movements on the ground on FR24 for major airports.
Title: Re: How to show aircraft at correct position
Post by: APO1972 on April 19, 2016, 09:01:00 AM
OK thanks too,
i understand , do you know please ,  where to post my last message ?
I mean here in forum or if you know outside to another forum regarding dump1090.
Title: Re: How to show aircraft at correct position
Post by: Anmer on April 19, 2016, 09:18:24 AM
What is your last message?

Dump1090 is open source and there are many forums that cover the topic.
Title: Re: How to show aircraft at correct position
Post by: APO1972 on April 19, 2016, 09:30:35 AM
I mean with the 3 screen snapshots.
Title: Re: How to show aircraft at correct position
Post by: Anmer on April 19, 2016, 09:41:05 AM
Try:

http://forum.virtualradarserver.co.uk/

But you may get more Dump1090 support on the FlightAware forum:

https://discussions.flightaware.com/ads-b-flight-tracking-f21/

Post in the board "ADS-B Flight Tracking"

Oliver Jowett (OBJ) is skilled in Dump1090 and is very active on the forum.

Title: Re: How to show aircraft at correct position
Post by: APO1972 on April 19, 2016, 09:42:06 AM
Many thanks!!! for all!!! if i have news i'll inform you.
Title: Re: How to show aircraft at correct position
Post by: APO1972 on April 19, 2016, 02:58:22 PM
I have good news from Flightaware forum!
It was so simple...i must edit dump1090 .bat file and insert the parameters --lat and --lon with accurate numbers of my antenna position.
That it was ! now all wotking well!
Thanks a lot
:)
Title: Re: How to show aircraft at correct position
Post by: Anmer on April 19, 2016, 03:02:57 PM
Quote from: APO1972 on April 19, 2016, 02:58:22 PM
I have good news from Flightaware forum!

That's great news.  The FlightAware forum is very good for Dump1090 support.

Thanks for letting us know.