I've made several post regarding ADSB's in the past and how they work. I sometimes get questions about antenna placement and whether or not I get good reception.
I don't profess to be any kind of guru on this, but my system works great.
I have a SkyRadar D2 ADSB receiver for both 978 and 1090 bands. I used the provided whip antenna's for a while and they worked great, but looked bad just placed on the glare shield.
You can see them in this photo, one on either side of the G-Meter.
I decided to mount permanent transponder antenna's and see how they worked.
I called Stein and told him what I wanted to do and he sent me a couple of these transponder sticks.
http://www.steinair.com/storedetail.cfm?productid=42
I also needed to get from the back of the D2, which uses the SMA connectors. Stein sells converters that take the SMA to BNC. Not the cheapest way, but really works well and easy. Used BNC's on RG400 to both antenna's.
I mounted the two monopole antennas on the fairing between the left wing and the fuse bottom. No, I didn't measure wave lengths or anything, I just drilled where they would fit and put them in. Works good, lasts a long time. The single monopole in the background is my transponder antennae.
Like I said, I'm not an antennae guru and I'm sure someone will chime in here and say don't do it this way, but hey, it works great for me. No interference with anything that I can notice. I get ADSB signals on the ground if a station is anywhere near by and at my home base in Dahlonega, I get stations climbing through 800 feet. Have seen as many as 12 stations on the EFIS.
I also use the Trig TT31 Transponder with the WAAS GPS fed from my GTN650, so I have full in/out ADSB. I can't believe how many airplanes are flying around me all the time!
I don't profess to be any kind of guru on this, but my system works great.
I have a SkyRadar D2 ADSB receiver for both 978 and 1090 bands. I used the provided whip antenna's for a while and they worked great, but looked bad just placed on the glare shield.
You can see them in this photo, one on either side of the G-Meter.
I decided to mount permanent transponder antenna's and see how they worked.
I called Stein and told him what I wanted to do and he sent me a couple of these transponder sticks.
http://www.steinair.com/storedetail.cfm?productid=42
I also needed to get from the back of the D2, which uses the SMA connectors. Stein sells converters that take the SMA to BNC. Not the cheapest way, but really works well and easy. Used BNC's on RG400 to both antenna's.
I mounted the two monopole antennas on the fairing between the left wing and the fuse bottom. No, I didn't measure wave lengths or anything, I just drilled where they would fit and put them in. Works good, lasts a long time. The single monopole in the background is my transponder antennae.
Like I said, I'm not an antennae guru and I'm sure someone will chime in here and say don't do it this way, but hey, it works great for me. No interference with anything that I can notice. I get ADSB signals on the ground if a station is anywhere near by and at my home base in Dahlonega, I get stations climbing through 800 feet. Have seen as many as 12 stations on the EFIS.
I also use the Trig TT31 Transponder with the WAAS GPS fed from my GTN650, so I have full in/out ADSB. I can't believe how many airplanes are flying around me all the time!
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