Great advice. Some time ago, when I was trying to do it, I got fixated on the e4000 and the R820T somehow I was pushed out of my head. But I already have the R820T and I am having fun with time
I'm glad I use it myself sometimes.
I listen to the air band on the wave field of the open dipole and I can listen to it much better than on the box antenna.
Unfortunately NOAA linden. Neither in vertical nor horizontal polarization of the dipole.
I tried to listen to the SP DX RTTY Contest today but on the frequencies available to me either nobody works or the antennas are quite up to ... ;)
As for asd-b, I was playing with the dump1090 program
I use an ubunciak
I do not send to FL so it is one thing for me to decode. In fact, distance is the most effective for me at the moment because I am playing with the antennas.
I saw a mod for rasbery pi on the web that counted the distance to the plane because I did not find this mod anywhere, I had to breed it myself
If anyone is interested, you need to modify the interactiveShowData (void) function
my modification is
This is not done as it should, but it does provide basic functionality in interactiv mode by modifying only in one place easy for anyone to repeat.
The program requires our coordinates to be compiled in, but adding it as a command line parameter would complicate the life of someone who would like to quickly implement this mod.
The box antenna is bad
Fortunately, I had a few of these antennas and changed one by adding counterweights at the bottom.
So the base with the mustache counted on 1090 + the box antenna shortened a bit and we have a GP. But it's best to do this http://sp7pki.iq24.pl/default.asp?grupa=3534&temat=157203
Interestingly, the maximum range greater in the direction I have exposed is in the case of the whip itself, but the added counterweights improve the characteristics because it improves the "visibility" of the planes from the covered side.
I can already see that the weather has a big influence because yesterday evening the maximum distances were up to 230 km and today 170-180 km
In fact, I could give the antennas one floor higher, i.e. to the roof, but on the one hand, I will probably lose what I will lose on a longer antenna cable. And knocks, which is a little bit more, so to switch the antenna to the roof, it would be a little out of my way.
Such a chint fits a standard magnetic stand with a screw thread at the com / lpt / vga port. And so you can do interchangeable "whips"