Hello, a recent newbie to the ADSB hobby and have been educating myself about all facets of aircraft tracking. While I have read so many posts on antennas, their designs, placement etc., it is tough to get a sense on who is using what and where is it placed. If you search the Forum for “antenna”, over 1,300 messages come up!
As a professional market research executive by day I thought to myself, why not start by asking the Forum members the basics: which antenna they use, where it is placed – and see what they say. I have never used the “Poll” functionality before, so I apologize if I mess things up. There are limitations to the Poll functionality so I figured I would start with these basic questions.
Basically I would like to quantify:
Which type of antenna you use (a list of common variants is provided); and
The location whether indoors, attic or outdoors.
The Poll allows two responses, so please answer** once **for the antenna using (if you use more than one, please only select one) and a second for the location (either Indoors, Attic or Outdoors). Please note the Poll cannot differentiate between one response for the type of antenna and one for location – versus incorrectly inputting two antenna responses.
If you have another setup (multiple antennas, multiple locations for a single feeder, etc.) or any other interesting comments on your antenna design or placement, I think you may be able to post a Reply with that additional info.
If this proves interesting, perhaps we can expand this for more insight. For example, the exact antenna location (in the room, against the window, in the yard, estimated height of antenna, first floor, second floor, etc.), your estimate of antenna clear visibility, amplified vs. non amplified setup, etc to help better understand the coverage collected and maybe help one another out. 
Thanks for participating!
Brian
*FYI - I currently am using a DIY 1/4 ground plane S0239 spider with 4 arrays, single vertical whip mounted on northern facing roof eave approximately 22’ off the ground. There is a 25’ RG6QS coax feed from the antenna using a PL259 connector to a male F connector which plugs into a F female coax to male MCX pigtail then into the dongle. No amplification at this time. It is resting on top of 2 feet of 3/4" pvc pipe, but only has clear visibility to a guestimate of say 80% of the horizon/sky due to impediments of the roof pitch, nearby houses, etc. However, this current setup is double the performance of the stock whip antenna which previously was just sitting on my window sill. *
Best of luck with the poll.
