New antenna, how to determine if better


#1

Hey guys- I just setup a new antenna for my PiAware. What’s the best way to determine if it is working better than the previous antenna other than giving it a few days and see if it reports more positions/aircrafts?

Thanks in advance!
Jeff


#2

Virtual Radar Server virtualradarserver.co.uk/ will provide coverage maps from your data. I’m sure there are others.


#3

As mentioned VirtualRadar will create a polar plot of the coverage that will look like this:
http://i.imgur.com/NzVkvDWl.png

You might need to use the old antenna in order to generate a comparison one. If not git it a full week (traffic varies by day of the week) and check your positions reported and the aircraft seen.

Sam


#4

Ok…I assume installing this on the Pi is cool and won’t cause any issues?


#5

I run it from a different computer that reads the dump1090 information remotely.


#6

Mine runs on the PC that runs Planeplotter SMU service. Found two trees that are just off my property with it.


#7

What settings are you using? I have it installed on a Windows computer and am trying to connect to the Pi. It says connected, but the number of messages never increments.


#8

On the Pi:
(this is from running piaware-status)
dump1090 is listening for connections on port 30005.
faup1090 is listening for connections on port 10001.
faup1090 is connected to port 30005
piaware is connected to port 10001.
piaware is connected to FlightAware.
dump1090 is producing data on port 30005.
dump1090 is producing data on port 10001.

On the PP instance:
Options:
Mode-S/ADS-B RTL>RPi+Dump1090
UDP/IP data from Net
Allow MLATS
Raw Data for MLATS
UDP/IP local port 9742
Output Data
Log Mode-s (.log)
Log Mode-S (.bin)
TCP/IP Server
Enable IP 30005

Hope this helps


#9

Alright, I got it working after a lot of trial and error. It ended up being port 30003 for me. I also setup a port forward so that I can watch the interface while I’m at work, pretty cool! I assume it takes a few days or a week before the polar plot appears? Thanks for the help guys, much appreciated!

Jeff


#10

It builds as each plane passes - for me I get a plot all-round within about 30 minutes, but it continues to build over a much longer period.

the thing to remember is though planes travel in air corridors - the traffic may select which corridor is most fuel efficient based weather conditions and wind direction.

was it on this thread that someone suggested go heywhatsthat.com/ put in your true location and true antenna height, select ‘in the air’ and get a plot of the maximum range for aircraft say at 40000 feet. This will take ground topology into account, and will give some indication of what is actually achievable (with no tall buildings around)


#11

How do you get VirtualRadar to generate that polar plot? I’ve dug through the app and docs and see where to reset the plot but not where to view.


#12

Haha, glad I’m not the only one. I can’t figure that out either!


#13

You need to make sure that there is a receiver location associated with the receiver.

  1. http://www.virtualradarserver.co.uk/Documentation/WebServer/ReceiverLocations.aspx
  2. http://www.virtualradarserver.co.uk/Documentation/WebServer/ReceiversOptions.aspx

Once that is done you will have the option of receiver range in the menu at the map.


#14

yup… all that done… no item in the menu of the web page… hmmm


#15

I also just configured that and am not seeing anything for it.


#16

Can you see a blue dot where your receiver is?


#17

Sure can! If it would help, I can send you a link to the page. I have a port forward setup so I can get to it outside of my home network.


#18

Sure that would help.


#19

PM Sent.


#20

Can you sen me a screenshot of the location setting that includes the latitude and longitude in it.

I had the same problem and was the negative (-) part of the coordinates. The best thing to do is remove the location, create a fresh one with another nanme and verify the coordinates are correct.