I'm confused by the references to equipment "Class 1" on the Dynon website and the disparity with FAA information on ADS-B equipment. Specifically, the Dynon product page states:
"U.S. ADS-B OUT Compliance Information: The FAA ADS-B "final rule" only allows the higher power Class 1 transponder to be used as an ADS-B Out transmit device for ADS-B Out mandate compliance on or after 2020."
I couldn't find any reference to a "Class 1" in either the final rule or TSO-C166b. The final rule states that a Mode-S ES transponder must have minimum power of 125 Watts and:
"Aircraft operating in airspace designated for ADS–B Out, but outside of Class A airspace, must have equipment installed that meets the antenna and output power requirements of either:
(i) Class A1, A1S, A2, A3, B1S, or B1 as defined in TSO–C166b; or
(ii) Class A1H, A1S, A2, A3, B1S, or B1 equipment as defined in TSO–C154c, Universal Access Transceiver (UAT)
Automatic Dependent Surveillance–Broadcast (ADS–B) Equipment Operating on the Frequency of 978 MHz."
TSO-C166b states the transmitter could be Class A (A1, A1S, A2, A3) or Class B (B1S, or B1) as defined in RTCA/DO-260B.
The copy of RTCA/DO-260B I found lists A1, A1S, A2, B1, and B1S all having 125Watts minimum transmit power. Class A3 is 200Watts.
Since the Trig TT21 and SV-XPNDR-262 have 130 Watts per both companies websites...why don't they comply? Where is "Class 1" referenced by the FAA? What am I missing?
"U.S. ADS-B OUT Compliance Information: The FAA ADS-B "final rule" only allows the higher power Class 1 transponder to be used as an ADS-B Out transmit device for ADS-B Out mandate compliance on or after 2020."
I couldn't find any reference to a "Class 1" in either the final rule or TSO-C166b. The final rule states that a Mode-S ES transponder must have minimum power of 125 Watts and:
"Aircraft operating in airspace designated for ADS–B Out, but outside of Class A airspace, must have equipment installed that meets the antenna and output power requirements of either:
(i) Class A1, A1S, A2, A3, B1S, or B1 as defined in TSO–C166b; or
(ii) Class A1H, A1S, A2, A3, B1S, or B1 equipment as defined in TSO–C154c, Universal Access Transceiver (UAT)
Automatic Dependent Surveillance–Broadcast (ADS–B) Equipment Operating on the Frequency of 978 MHz."
TSO-C166b states the transmitter could be Class A (A1, A1S, A2, A3) or Class B (B1S, or B1) as defined in RTCA/DO-260B.
The copy of RTCA/DO-260B I found lists A1, A1S, A2, B1, and B1S all having 125Watts minimum transmit power. Class A3 is 200Watts.
Since the Trig TT21 and SV-XPNDR-262 have 130 Watts per both companies websites...why don't they comply? Where is "Class 1" referenced by the FAA? What am I missing?