Radarspotting

Hex Codes and Registrations => Miscodes => Topic started by: flyoverfred on November 03, 2020, 04:18:26 AM

Title: 7C1673
Post by: flyoverfred on November 03, 2020, 04:18:26 AM
PA31 N628HA is somehow pinging the above OZ code (VH-EPX) when it should be A834A5 !! It has no Australian history so no real explanation !
Title: Re: 7C1673
Post by: s92driver on November 03, 2020, 07:58:15 AM
Perhaps it's been fitted with a Transponder that was once in VH-EPX and the technician didn't change the DIP switches.  Once intalled, it's generally not possible to change the code without removing it again.
Title: Re: 7C1673
Post by: flyoverfred on November 03, 2020, 04:03:58 PM
Quote from: s92driver on November 03, 2020, 07:58:15 AM
Perhaps it's been fitted with a Transponder that was once in VH-EPX and the technician didn't change the DIP switches.  Once intalled, it's generally not possible to change the code without removing it again.

I don't know of they are a standard fit but VH-EPX was a helicopter and the other is a PA31
Title: Re: 7C1673
Post by: Ospreyv22 on November 04, 2020, 07:47:03 PM
Interestingly enough, but 71C673 should be on a P68C c/n 513/c VH-EPX with the Reg being used the 3rd time around,
Don't know if that's added to any confusion over the Hex Code or helped.

Regards

Ian
Title: Re: 7C1673
Post by: IanH on November 04, 2020, 08:22:16 PM
Looking at the two hexcodes in binary format, there does not seem to be any overlap.

Other miscodes are usually just a 0/1 interchanged (perhaps a couple of times).

The differences between these two would have to be a random setting of the switches to give the wrong hexcode.

Simplest to believe a box moved to another aircraft.