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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Mon Jun 20, 2016 6:35 pm 
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abcd567 - FlightAware user avatar

Joined: Sat Feb 15, 2014 3:08 am
Posts: 2036
Location: Toronto CYYZ
I second bob k6rtm. Thank you Flightaware Staff.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Tue Jun 21, 2016 5:10 am 
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triggers - FlightAware user avatar

Joined: Sun Dec 21, 2014 2:37 pm
Posts: 244
Location: Oxfordshire, UK
Thirded :wink:


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Tue Jun 21, 2016 8:57 am 
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zeek70706 - FlightAware user avatar

Joined: Wed Apr 23, 2008 6:00 am
Posts: 70
Location: Baton Rouge KBTR
don308 wrote:
jonhawkes2030 wrote:
Let me see.
1. Free receivers to areas that don't have good coverage.
2. $90/month access account to FA services if you provide them data.
3. Pretty good fault finding from FA and the community.
4. Subsidised/cost price Receiver Dongles for about $US17.

Seems fine to me.


Free receivers to areas without good coverage doesn't help me cover my costs of the raspberry pi, the sdr receiver, the solar panel, the battery, the solar charge controller, the antenna, the mounting bracket, the PVC tube to house it all in, the 12v to USB power adaptor, my isp bill and my time in managing it.

90 dollar a month access account. What does that do for me? I don't think I've ever used any of its benefits.

Yes, good tech support.

Subsidized cost for receiver? Mine was all of 19.00 dollars when I bought it for another project.

Raspberry pi with sdram card and case, wifi dongle, 70.00 dollars,. 30 watt solar panel, 55.00 dollars. 5 amp Lipo battery, 35.00, 3amp solar charge controller, 8.00 dollars, sdr rcvr, 19.00 dollars, 12v to USB adaptor 12.00 dollars, USB cable, 4.00 dollars, PVC tube with caps and mounting brackets 15.00 dollars, ISP 45.00 dollars a month. Antenna and antenna cable, 6.00 dollars
My time building and learning, free because it was a fun learning experience.

That comes up to around 224.00 dollars not including my ISP rate.

Not that I'm not in the game here. I've been providing free data to FA and only FA for over 6 months now.

I just think it should be recognized that all of us are giving FA free data at our expense and they sell that data.
I understand the antenna has a cost attached to it. But so does everything that we the providers give them.

D.


This is a voluntary hobby. Voluntary.

Everyone knows what it costs and are in direct control of what they spend.

There are no big secrets here as far as I know. I don't understand the point of your rant.

Try telling Wal Mart how much it costs you to visit their store. See where it gets you.

I enjoy building antennas and experimenting with the equipment. I'm waiting for the newest FA antenna to get back in stock and I've been trying to decide how to hook it up and how much to spend. It's voluntary and I like it.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Tue Jun 21, 2016 9:16 am 
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joelwiley - FlightAware user avatar

Joined: Mon Mar 12, 2012 7:46 pm
Posts: 858
If one is concerned with costs, one can peruse the thread ostensibly finding a cheaper platform.
Hobbies by definition are time and resource consumers.
ads-b-flight-tracking-f21/orange-pi-pc-a-15-alternative-to-rpi-2-so-far-so-good-t36356.html
:wink:


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Thu Jul 07, 2016 11:13 pm 
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antonov124 - FlightAware user avatar

Joined: Tue Nov 24, 2015 5:12 am
Posts: 105
Location: EDDC
how it looks from inside this antenna?
a simple wire?


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Jul 08, 2016 4:04 am 
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abcd567 - FlightAware user avatar

Joined: Sat Feb 15, 2014 3:08 am
Posts: 2036
Location: Toronto CYYZ
antonov124 wrote:
how it looks from inside this antenna?
a simple wire?

Yes, it is a wire, but NOT A SIMPLE WIRE.

It is wire collinear, with a phasing coil between upper & lower straight sections, and a decoupling sleeve at feed point.
Looks very simple and easy DIY stuff, but nearly impossible to tune by a hobbyist without proper test equipment & technical know-how.

Tuning is the main bottleneck for all DIY collinears:
Coaxial Collinear.
Wire Collinears with Coils.
Wire Collinears with hairpins (stubs).

photo courtesy david.baker

Image
http://i.imgur.com/spG8CYc.jpg


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Mon Jul 11, 2016 3:34 pm 
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antonov124 - FlightAware user avatar

Joined: Tue Nov 24, 2015 5:12 am
Posts: 105
Location: EDDC
thx for the Info


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Tue Jul 12, 2016 3:39 pm 
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toverfield - FlightAware user avatar

Joined: Fri Jun 03, 2011 5:30 pm
Posts: 82
Location: Lake Travis, TX
photo courtesy david.baker

http://i.imgur.com/spG8CYc.jpg

I would like to see a similar photo of the 49" FA antenna.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Sun Jul 17, 2016 2:05 pm 
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ExCalbr - FlightAware user avatar

Joined: Wed Nov 23, 2005 2:00 pm
Posts: 595
caius wrote:
Double check that the N connectors are 50 Ohm and not 75 Ohm - The 75 Ohm version has a thinner pin and may not connect properly if you plug it into a 50 Ohms socket.

Image

The top ones are 75 Ohm, the bottom 50.


This probably should be a pinned post (no pun intended). I just received an SMA to N cable, and the connector seems to be a 75 ohm connector, going by your picture. I ordered the product because of the high rating and indication the cable was a low-noise cable. Unfortunately, it did not specify resistance of the connector. I found an alternative that specifies 50 ohms, so I just ordered it. But now I need to wait for another delivery. Interestingly, the 50 ohm one was cheaper.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Wed Aug 24, 2016 5:26 pm 
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sjacket99 - FlightAware user avatar

Joined: Thu Nov 13, 2014 11:53 am
Posts: 467
I ordered the FlightAware antenna on July 12, 2015. I was having issues last month with not picking very little to no planes up on it. After doing some troubleshooting to make sure it wasn't my Pi or dongle or a cable issue. I was just able to get a ladder to remove the antenna from my roof. I turn the antenna upside down and water came dropping out of the black cap that is on it.

I didn't know if this had a warranty or not? Can FA answer this?

Thanks,

sjacket99.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Wed Aug 24, 2016 6:35 pm 
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eprn - FlightAware user avatar

Joined: Sat Jan 16, 2010 1:00 pm
Posts: 32
zeek70706 wrote:
don308 wrote:
jonhawkes2030 wrote:
Let me see.
1. Free receivers to areas that don't have good coverage.
2. $90/month access account to FA services if you provide them data.
3. Pretty good fault finding from FA and the community.
4. Subsidised/cost price Receiver Dongles for about $US17.

Seems fine to me.


Free receivers to areas without good coverage doesn't help me cover my costs of the raspberry pi, the sdr receiver, the solar panel, the battery, the solar charge controller, the antenna, the mounting bracket, the PVC tube to house it all in, the 12v to USB power adaptor, my isp bill and my time in managing it.

90 dollar a month access account. What does that do for me? I don't think I've ever used any of its benefits.

Yes, good tech support.

Subsidized cost for receiver? Mine was all of 19.00 dollars when I bought it for another project.

Raspberry pi with sdram card and case, wifi dongle, 70.00 dollars,. 30 watt solar panel, 55.00 dollars. 5 amp Lipo battery, 35.00, 3amp solar charge controller, 8.00 dollars, sdr rcvr, 19.00 dollars, 12v to USB adaptor 12.00 dollars, USB cable, 4.00 dollars, PVC tube with caps and mounting brackets 15.00 dollars, ISP 45.00 dollars a month. Antenna and antenna cable, 6.00 dollars
My time building and learning, free because it was a fun learning experience.

That comes up to around 224.00 dollars not including my ISP rate.

Not that I'm not in the game here. I've been providing free data to FA and only FA for over 6 months now.

I just think it should be recognized that all of us are giving FA free data at our expense and they sell that data.
I understand the antenna has a cost attached to it. But so does everything that we the providers give them.

D.


This is a voluntary hobby. Voluntary.

Everyone knows what it costs and are in direct control of what they spend.

There are no big secrets here as far as I know. I don't understand the point of your rant.

Try telling Wal Mart how much it costs you to visit their store. See where it gets you.

I enjoy building antennas and experimenting with the equipment. I'm waiting for the newest FA antenna to get back in stock and I've been trying to decide how to hook it up and how much to spend. It's voluntary and I like it.




Must agree on the voluntary aspect of participation. Maybe it is not a great analogy -baseball and other sports fans invest large amounts of their personal time and wealth supporting teams which have private owners (and highly paid players). It is just something that we want to do. As an amateur radio operator, who is mostly inactive, participation in FlightAware provides some fulfillment. Also, there is a public service element. I do believe that we are making air travel better and safer for everyone.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Thu Aug 25, 2016 10:56 am 
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ericcarlson - FlightAware user avatar

Joined: Sun Jan 01, 2006 5:00 pm
Posts: 138
sjacket99, we'll follow-up with you directly about a replacement antenna. Thanks.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Thu Aug 25, 2016 12:03 pm 
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sjacket99 - FlightAware user avatar

Joined: Thu Nov 13, 2014 11:53 am
Posts: 467
ericcarlson wrote:
sjacket99, we'll follow-up with you directly about a replacement antenna. Thanks.



Thanks.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 11:39 am 
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Frazpo - FlightAware user avatar

Joined: Tue Feb 17, 2015 7:51 pm
Posts: 158
sjacket99 wrote:
I ordered the FlightAware antenna on July 12, 2015. I was having issues last month with not picking very little to no planes up on it. After doing some troubleshooting to make sure it wasn't my Pi or dongle or a cable issue. I was just able to get a ladder to remove the antenna from my roof. I turn the antenna upside down and water came dropping out of the black cap that is on it.

I didn't know if this had a warranty or not? Can FA answer this?

Thanks,

sjacket99.


I just confirmed this also. After a rain it is failing. I confirmed it just now with another antenna. However I cannot see any water coming out.
There are some hairline cracks in the sealant near the bottom where the fiberglass connects to the metal. Ideas??

Pretty certain it is a moisture issue due to eventually drying out and working again. This was the first time I was able to get on the roof with the laptop and swap antennas to watch it correct with my old antenna before it dried out.

Do you guys have any type of replacement program if I were to send it back?
I have put some sealant on it in hopes of drying out and working again. I am just leaving my homemade antenna up for now.

I noticed that one that failed on the attached post was shippedin July. Mine was just days earlier. Was there a defect happening during this time in production? Mine has done this many times. I had always been troubleshooting hardware in the past. It would eventually start working so I never could confirm why it started working again.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 3:59 pm 
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adragoman - FlightAware user avatar

Joined: Tue Oct 11, 2016 7:28 pm
Posts: 4
Hey everyone,

I'm interested in buying one of this antenna for my Pi setup. I'm kinda new and just started but i feel a lot of enthusiasm and I start thinking might be a good idea to make some improvements. So apart from antenna what other cables do i need in order to connect to a dongle that i use in Pi ? Would be a good idea to buy a filter also provided by FA ?
Thanks !


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 4:25 pm 
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abcd567 - FlightAware user avatar

Joined: Sat Feb 15, 2014 3:08 am
Posts: 2036
Location: Toronto CYYZ
@adragoman
Which dongle do you use? ProStick or generic DVB-T (black / blue) or some other?


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 4:42 pm 
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adragoman - FlightAware user avatar

Joined: Tue Oct 11, 2016 7:28 pm
Posts: 4
Hey,

I'm using a NooElec NESDR Mini 2 blue . :) I guess i cannot get the FA orange one as I can see it's not available in Europe!
That's a pitty...


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 5:20 pm 
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abcd567 - FlightAware user avatar

Joined: Sat Feb 15, 2014 3:08 am
Posts: 2036
Location: Toronto CYYZ
adragoman wrote:
Hey,

I'm using a NooElec NESDR Mini 2 blue . :) I guess i cannot get the FA orange one as I can see it's not available in Europe!
That's a pitty...


This is what I used with my FA antenna feeding generic DVB-T.

Image


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 5:30 pm 
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adragoman - FlightAware user avatar

Joined: Tue Oct 11, 2016 7:28 pm
Posts: 4
thanks! how long its that rg6 coax between antenna and dongle?
I would try to find the components and assemble something like that!


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 5:47 pm 
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abcd567 - FlightAware user avatar

Joined: Sat Feb 15, 2014 3:08 am
Posts: 2036
Location: Toronto CYYZ
adragoman wrote:
thanks! how long its that rg6 coax between antenna and dongle?
I would try to find the components and assemble something like that!


I have only 2 meters, as antenna is inside my apartment (see image 2 below)


Image 1 of 2
Image



Image 2 of 2
Image


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 5:56 pm 
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adragoman - FlightAware user avatar

Joined: Tue Oct 11, 2016 7:28 pm
Posts: 4
cool! Looks good!
thanks a lot for help!


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Fri Oct 14, 2016 6:09 pm 
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abcd567 - FlightAware user avatar

Joined: Sat Feb 15, 2014 3:08 am
Posts: 2036
Location: Toronto CYYZ
adragoman wrote:
cool! Looks good!
thanks a lot for help!

If you plan to purchase ProStick when available, you will need cables for it as shown in sketch nelow. Note that since both the ProStick and Filter have identical connector (SMA-female), same cable will be ok with & without filter.

Also note that although LMR400 cable is shown in sketch, LMR240 will also be ok if your cable length is less than 15 meters.

Image


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Mon Nov 07, 2016 4:11 pm 
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dstreufe - FlightAware user avatar

Joined: Sun Sep 18, 2005 11:00 pm
Posts: 195
Has anyone done a comparison of the 26" FA antenna (the only one now available) to this DPD Productions antenna?

http://www.dpdproductions.com/page_vhf_air.html#adsbout

The DPD antenna is significantly more expensive, and claims 9db, but I'm curious if anyone has an real-world figures.


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Sat Nov 12, 2016 1:04 pm 
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ETSI4 - FlightAware user avatar

Joined: Mon Jul 12, 2010 12:00 am
Posts: 17
Location: ETSI
looks like the 26" FA antenna is sold out in Europe ............................


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 Post subject: Re: New, inexpensive 1090MHz antenna for sale
PostPosted: Sat Nov 12, 2016 3:47 pm 
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jonhawkes2030 - FlightAware user avatar

Joined: Tue Jan 05, 2016 4:15 pm
Posts: 1064
Location: NYC
dstreufe wrote:
Has anyone done a comparison of the 26" FA antenna (the only one now available) to this DPD Productions antenna?

http://www.dpdproductions.com/page_vhf_air.html#adsbout

The DPD antenna is significantly more expensive, and claims 9db, but I'm curious if anyone has an real-world figures.


I use the DPD antenna and love it. I can get 50-250 hits at 200+NM at about 60ft AMSL.
I have used it for over 6 months and can't recall what the difference is. It is too high for me to do it now.
I plan to put the FA dual band antenna outside(not in the attic) in the next week or so. It won't be as high as the DPD antenna as the DPD pole is 14' and the FA pole is 9'.


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