I apologize if this has been asked before, but I can’t seem to find any information (Well, I found some, but it’s conflicting)
I’m planning on putting together an ADS-B monitoring station. It will be based on a Raspberry Pi, which is going to be outdoors in an approved weather-resistant box, so it can be as near to the antenna as possible. The antenna will be on a tall pole, so there will still be about 15-20 feet of coax.
My plan is to use the blue dongle to monitor 1090 mhz transmissions. As I understand that should work at least as well as the orange one with the external filter. (Correct me if I am wrong on that. If I’m better off using the external filter, then I’ll do that instead)
I plan on eventually adding 978 mhz monitoring, using the orange dongle, but right now I’m just looking to get going with regular 1090 mhz ADS-B.
The dongle has an integrated amplifier, but I noticed that there are some low noise amplifiers that could potentially be added. Here is one:
I think Nooelec makes one as well.
I want to get the best performance possible, but since the dongle already has an amplifier in it, I don’t want to overdrive it either.
I’m located near the shore in Connecticut, and I’ve played around a bit with an RTL-SDR dongle to see how well I could do receiving ADS-B. My location seems to be a very good one. I have mostly water between myself and New York City, and I’ve been able to pull in flights from North of Cape Cod and inland all the way up to the Quebec area. However, doing so requires a lot of playing around with the gain, and I can’t really consistently get the whole area covered.
So would it be worth investing in an amplifier like the one I linked?
If I did, I’d want to put it as close to the antenna as possible. I could quite easily mount a water tight box right at the antenna.