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Monroy ATD 200/300

 
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recapen(at)earthlink.net
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PostPosted: Fri Feb 15, 2019 10:58 am    Post subject: Monroy ATD 200/300 Reply with quote

Folks,

Thinking out loud and seeking opinions....

I have a Monroy ATD-200 in my panel which has not been working - getting ready to remove it. Monroy has a newer model out so the upgrade option to fill the panel space is still there...

I also have ADS-B in and out installed and displaying on my 430W and MX-20 devices.

Since both the ATD series and the ADS-B depend on everyone else having and using their transponders, the ATD will miss transponder-less aircraft and the ADS-B will only tell you what the ground radar is reporting - if you are in range of a ground transmitter station. For transponder equipped and on aircraft the ATD series will still fill the gap when you are flying at a lower altitudes and either ADS-B doesn't see you or you are out of range of a ground station.

Is this worth getting repaired/replaced? Or will ADS-B get better at lower altitudes?

Thoughts please!

Thanks,
Ralph


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gyoung



Joined: 09 Jan 2006
Posts: 209
Location: Republic of Texas

PostPosted: Fri Feb 15, 2019 4:54 pm    Post subject: Monroy ATD 200/300 Reply with quote

Assuming your ADSB-IN is dual channel (both 978 & 1090mhz) you will get all plane-to-plane broadcasts regardless of altitude. As more folks get ADSB-OUT there will be fewer holes (transponder-only) to be filled in by the ground station broadcast. My home base is under a Class B Mode C veil so, in theory, everyone with a transponder will be broadcasting ADSB-OUT this time next year. Nothing is perfect and you still need to see and avoid.

Greg Young

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recapen(at)earthlink.net
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PostPosted: Sat Feb 16, 2019 7:38 am    Post subject: Monroy ATD 200/300 Reply with quote

Thanks Greg!

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