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#1
November 17th 05, 06:56 PM
posted to rec.aviation.piloting
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Transponder problem...
Stubby wrote:
The explanation I received years ago was your transponder replies with 12 bits of switch settings (4 switches with 3 bits each) and one more that reflects the IDENT button. The twelve data bits (which are either the transponder code or the encoded altittude) are always sent along with a beginning and ending framing pulse. The SPIP is sent 4.35 microseconds after the last framing pulse only when identing. 
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#2
November 21st 05, 03:04 AM
posted to rec.aviation.piloting
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Transponder problem...
Well....
Operational check today.. xponder working fine, Ident working properly Hopefully the whole thing certed next week Ah.. joys of aircraft ownership... Flew 3 hrs today...smooth air, working trip, 2 hrs flying instead of 5 hrs driving...Cher on the CD player.... Makes working on the weekend almost fun! Dave On Thu, 17 Nov 2005 13:56:49 -0500, Ron Natalie wrote: Stubby wrote: The explanation I received years ago was your transponder replies with 12 bits of switch settings (4 switches with 3 bits each) and one more that reflects the IDENT button. The twelve data bits (which are either the transponder code or the encoded altittude) are always sent along with a beginning and ending framing pulse. The SPIP is sent 4.35 microseconds after the last framing pulse only when identing.
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