This is Dynon's new ADS-B In Solution. At McMinnville, we beat up on the Dynon rep a bit because their ADS-B IN was only on 978 MHZ (UAT) and their ADS-B OUT was via a trig Mode S Transponder on 1090 MHZ (1090-ES). With their previous solution two planes equipped with identical Dynon units wouldn't see each other via ADS-B unless they were within range of an ADS-B tower so it could rebroadcast their signals back out to both planes. That's a bit of a useless configuration out west where ADS-B towers can be sparse and mountains often times block the signals. With a dual band receiver, the two planes would see each others signals, so will have a more accurate and more reliable picture of the traffic around them. Even the lowest cost receivers (Stratux for example) are usually dual band. ADS-B Out is independent from ADS-B In and is the expensive part of the equation with the cost being driven by the FAA Mandate for a WAAS III GPS (which in my hmble opinion carries very little value). There is no ADS-B requirement before 2020, and then only if you plan to fly in airspace where it is mandated. For those flying with Mode-C transponders, the guys with ADS-B In & Out are often times have you displayed on their GPS anyway, although the position and reliability of the Mode C traffic can be a bit sketchy. Traffic mapping reliability of ADS-B vs Mode-C: The ADS-B Out signals typically broadcast roughly once a second. ADS-B units that receive the traffic data directly from other ADS-B units typically get updated once a second, so get a very accurate picture of traffic locations. Mode C transponders are typically interrogated by radar and reply once every 5 - 10 seconds. If the signal reaches the radar site, the data has to be processed, then sent out to the ADS-B Tower, which is usually not co-located with the Radar, then the data is rebroadcast back out via TIS-B signal broadcast from the ADS-B Tower. I find that the ADS-B towers go silent quite often, and mode C traffic at best, updates usually at 15 - 30 second intervals when the traffic, radar and ADS-B towers are all in reasonably close proximity. But many times the Mode-C traffic just pops up on the screen occasionally, then disappears again as the updates between the radar and the ADS-B tower, then the rebroadcasts out from the tower are so slow that the traffic snapshot times out and the traffic disappears off the screen again. The one comment I have made, and heard from many others flying with ADS-B is that they never knew how much traffic was around them until it was displayed on their screen. Nothing wrong with flying without ADS-B. It's only a tool you can choose to use or not in most of the airspace out there. I have flown coast to coast completely electronics free, and have flown coast to coast with all the latest goodies. No question it's easier flying with all the goodies, but there is something pure about flying cross country with out all the electronic stuff. -Jeff Scott Los Alamos, NM
Sent: Friday, March 24, 2017 at 1:07 PM From: "Paul Visk via KRnet" <[email protected]> To: KRnet <[email protected]> Cc: "Paul Visk" <[email protected]> Subject: Re: KR> Dynon Duel Band ADS-B Todd, No. This receiver is part of the Skyview system . Pete, here's the link to their preflight brief http://preflight.dynonavionics.com/2017/03/dynons-new-dual-band-ads-b-traffic-and.html?utm_source=feedburner&utm_medium=email&utm_campaign=Feed:+DynonPreflightBrief+(Dynon+Preflight+Brief)&m=1 Paul Visk Belleville Il. 618-406-4705 Is this a complete product to meet the upcoming ADS-B requirement, that I can install in my KR2S inexpensively Todd Thelin In a message dated 3/24/2017 11:07:16 A.M. Pacific Daylight Time, [email protected] writes: Just got an email from Dynon. They now have a dual band a ADS-B receiver. I guess we talk some sence into Kirk at the McMinnville gathering. _ _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to [email protected]
