On May 24, 9:44*am, Mike the Strike wrote:
One issue that hasn't been discussed much is what happens when a
glider flies cross-country between different TRACON jurisdictions. *We
have three possibilities in Arizona - 0400 (Tucson) 1200 (Phoenix) and
1201 (New Mexico and some other surrounding locations). *I have flown
in all three with my home 0400 code and no-one appears to have
noticed.

I suspect if you chose any random 4-digit number, no-one would notice
either.

It's definitely time for some uniformity, at least if anyone is
watching!

Mike

Do they not notice because you are not talking to them to find out?
Hence the reason for a national code.

04xx series codes are for TRACONs to use locally with no impact to the
national system.
Picking a random 4 digit code, you might pick the same code assigned
to IFR traffic in the local area and his tracking data block could get
attached to your radar plot and that would not be good for the other
aircraft or ATC.

Joshua Approach, Edwards AFB and China Lake NAS, had problems with the
0440 codes flying south from Reno into their airspace and to Joshua,
0440 meant something else.

T