I'm very new to this. Since last week I've fiddled a bit around with NooElec RTL and a NooElec Inside Antenna (put it out on the balcony, only place to go to the outside) and was somewhat impressed. So I've bought an AirNav 1090 outside antenna and put it on the same place, but hardly got no aircrafts with it. What am I doing wrong? Or is the antenna faulty? Reviews are good with this antenna, spot is absolutely the same - and the only one I can get on outside.
Using dump1090-fa, Feeding ADSBExchange, RB, FR, FA with it.
#New Antenna, loss of range
tulip dune
tulip dune
https://globe.adsbexchange.com/?feed=oEQ6fge_Rcum
That’s my feed.
Saw that many of you playing with gain but really do not know how to do that.
And do not know if it is the correct way I did with dump1090-fa. Really hoping to get some help from people doing that with heart.
pallid oracle
support is going to be a bit limited here, as you're not using ADSBx hardware nor software. I can't advise how to adjust gain (other other diagnostic methods) when I'm not familiar with your software installation. You could switch to the ADSBx pi image and still feed FA and FR24 (but maybe not RB easily).
tulip dune
Thought, that it would be a good idea to use a dump1090 software where all Feeds could be docked-on, so there is no system preferred.
Found that Gain-Thing now and tried a bit, but that doesn't change anything. I really think, the antenna is not okay as the small indoor antenna gets much more on the outside than the new one 🙂
pallid oracle
yeah, it might be a bad antenna. I can't think of any reason for it to perform worse than the NooElec one, unless it's something obscure like bias-T enabled and affecting one antenna but not the other, but that seems unlikely (you'd probably know if you had enabled it too)
tulip dune
Ouff. I really can't remember that I have enabled bias-T. Is there a way how I can look for it or disable it?
Thanks for helping me here!!
pallid oracle
again, I don't know anything about the software that you have installed .... but I'd guess you would know if you had enabled it
tulip dune
Yes, I think you're right. Try to get an exchange of the antenna now and hope, this solves the problem. Thx 🙂
autumn temple
I'm very new to this. Since last week I've fiddled a bit around with NooElec RTL...
The Airnav antenna has 30' of cable attached - that will cause signal losses. You really need an LNA (either built into the SDR or standalone) to make that perform. There are plenty of antenna options without an attached cable so you can use any cable you want so as to minimise losses (ie the shortest length of the best quality coax you feel like paying for).
pallid oracle
hmm, not sure that that should make a dramatic difference
LNA is always recommended for 1090 anyway, though - I was going to mention it, but didn't want to confuse things with the antenna comparison
glad raptor
The problem isn’t the 30’ of cable attached, it’s the kind of cable attached, looks like RG-58 which has massive loss in the GHz frequency range.
tulip dune
The good thing is: I have my money back for this.
ornate sleet
The Airnav antenna has 30' of cable attached - that will cause signal losses. Y...
yah definitely get a decent lna preferably with a filter built in. if that nooelec has bias t put it right next to the antenna and power it via bias t
will make all the difference in the world having an lna with that much coax
as commguy said if its rg58 though thats a lot of loss I would look for lmr400. Probably can get 30ft for $50
autumn temple
yah definitely get a decent lna preferably with a filter built in. if that nooe...
LMR400 is too hard to work with bend radius wise for most domestic situations. LMR240 is much easier to route and manage and is fine up to ~33'.
ornate sleet
LMR400 is too hard to work with bend radius wise for most domestic situations. ...
Thats true, if its outside lmr400 all the way its not that bad but if its inside at all or really tight bends your right lmr240 is much more flexible