Hy folks,
I share data to FR24 with the ID T-EDDW6. My coverage is almost bad due to a bad location. Never mind due to good redundancy of the FR24-sharers in my area and so I cover traffic 24/7 below 2000ft of EDDW. Sorry for not sharing ground-traffic, 'cause my flat is on the wrong side of the airport and I'm not high enough. Sometimes I put my equipment into my car and sharing from better locations.
So far, now the interesting question:
Has anybody build a radar-antenna of maybe this http://www.thiecom.de/index.php?sid=...archparam=1090 or a Yagi? Actually I'm on holiday and have the idea to make a radar-antenna.
On tuesday I migrate my receiver from my old barebone-XP-PC to my new Raspberry Pi without serious problems, so I'm looking for new challenges.
Given is:
2 messages a second of position from Mode-S!
Maybe 30 degree beam width.
So I calculate 10 rpm for such radar, to have all 6 seconds a message from an aircraft. To avoid the edges of the beam width by periodic messages, the radar should rotate a little bit slower.
Problem is:
Slip rings for HF seems to be expensive. http://www.schleifring.de/coaxial-slip-rings/
But you can install a Raspberry Pi as backpack of the antenna and get the data over WIFI. Then the slip ring must only deliver the 5V DC, maybe buffered with an accumulator.
If you have the place on rooftop, a small tent could be a radom for the installation.
Have I something forget?
regards
martin
I share data to FR24 with the ID T-EDDW6. My coverage is almost bad due to a bad location. Never mind due to good redundancy of the FR24-sharers in my area and so I cover traffic 24/7 below 2000ft of EDDW. Sorry for not sharing ground-traffic, 'cause my flat is on the wrong side of the airport and I'm not high enough. Sometimes I put my equipment into my car and sharing from better locations.
So far, now the interesting question:
Has anybody build a radar-antenna of maybe this http://www.thiecom.de/index.php?sid=...archparam=1090 or a Yagi? Actually I'm on holiday and have the idea to make a radar-antenna.
On tuesday I migrate my receiver from my old barebone-XP-PC to my new Raspberry Pi without serious problems, so I'm looking for new challenges.
Given is:
2 messages a second of position from Mode-S!
Maybe 30 degree beam width.
So I calculate 10 rpm for such radar, to have all 6 seconds a message from an aircraft. To avoid the edges of the beam width by periodic messages, the radar should rotate a little bit slower.
Problem is:
Slip rings for HF seems to be expensive. http://www.schleifring.de/coaxial-slip-rings/
But you can install a Raspberry Pi as backpack of the antenna and get the data over WIFI. Then the slip ring must only deliver the 5V DC, maybe buffered with an accumulator.
If you have the place on rooftop, a small tent could be a radom for the installation.
Have I something forget?
regards
martin