Transponder calibration check
Thread Starter
Join Date: Apr 2011
Location: Victoria
Posts: 750
Likes: 0
Received 0 Likes
on
0 Posts
Transponder calibration check
Looking for a technician to check calibration of my Auster's Microair transponder.
North of Divide in Victoria would be good.
Thank you
Kaz
North of Divide in Victoria would be good.
Thank you
Kaz
It's a pity you have to have a Microair actually checked as it has a built in testing system that actually shows you what it's transmitting out....
But... your encoder could be screwed.. but wait there's more.... the altitude output doesn't actually have to be checked these days... or so my avionics guy told me.
But... your encoder could be screwed.. but wait there's more.... the altitude output doesn't actually have to be checked these days... or so my avionics guy told me.
Join Date: Jan 2012
Location: Mascot
Posts: 27
Likes: 0
Received 0 Likes
on
0 Posts
Check AWB 34-013 Issue : 4 (10 December 2013)
With the introduction of Mode S Transponder checks seem to have been made more rigorous.
No new installations of Mode C units are allowed, so people should plan on Mode S/ADSB upgrades.
With the introduction of Mode S Transponder checks seem to have been made more rigorous.
No new installations of Mode C units are allowed, so people should plan on Mode S/ADSB upgrades.
Join Date: Jul 2006
Location: Idlewild Peake
Posts: 132
Likes: 0
Received 0 Likes
on
0 Posts
It's a pity you have to have a Microair actually checked as it has a built in testing system that actually shows you what it's transmitting out....
But... your encoder could be screwed.. but wait there's more.... the altitude output doesn't actually have to be checked these days... or so my avionics guy told me.
But... your encoder could be screwed.. but wait there's more.... the altitude output doesn't actually have to be checked these days... or so my avionics guy told me.
Join Date: Sep 2003
Location: Back too the hot bits again
Posts: 78
Likes: 0
Received 0 Likes
on
0 Posts
I thought the encoder was checked under CAO 100.5 every two years,
I also understand that you can still fit a new mode c transponder to an aircraft registered before Feb 2014, spend a bit more and get mode s makes more sense
I also understand that you can still fit a new mode c transponder to an aircraft registered before Feb 2014, spend a bit more and get mode s makes more sense
Join Date: Apr 2008
Location: Australia
Age: 51
Posts: 931
Likes: 0
Received 0 Likes
on
0 Posts
I also understand that you can still fit a new mode c transponder to an aircraft registered before Feb 2014, spend a bit more and get mode s makes more sense
You can fit a NEW mode C transponder to an aircraft registered before Feb 2014, provided the aircraft was already equipped.
I.e you can REPLACE an existing unit with a new unit (not sure if it must be same make and model). You cannot, do an initial install regardless of registration date.
???????????????
I am with you on this. The encoder is not required to be checked which makes me wonder if you really need a transponder check at all. ATC will tell you if your altitude transmission is incorrect just as they will tell you of any other transponder fault. Same as a VHF radio fault.
The transponder test requirements are in CAO 100.5 Appendix 1 Para 14, this is the old AD/RAD/47 for non Part 42 aircraft, AD/RAD/47 still applies to Part 42 aircraft as the transponder tests weren't included in the Part 42 MOS.
As far as replacing a Mode C transponder - the key word is "installation".
Removing an unserviceable KT76A and replacing it with a serviceable or even brand new (if you could find one) KT76A is legal, you are not modifying the "installation" only replacing a component.
You can't pull out the KT76A and put in Narco Mode C.
This is covered in CAO 20.18 Para 9E - any aircraft built on or after 6 Feb 2014 or has it's transponder installation replaced or modified after Feb 6 2014 - the installation being the whole system
DJ?
....
....
