Narrative:

ZJX put us on a vector to deviate east of a line of thunderstorms that stretched southwest to northeast through northern florida and georgia. Numerous aircraft were deviating east of the line. Center gave us a radar vector of 215 degrees, then told us to squawk 7700. As we were on a vector, we followed his instructions. Other aircraft were also told to squawk 7700. We were clear of the WX on the east side of the line. We were concerned when the controller told us and the other aircraft to squawk transponder code 7700, that he may have vectored us into a military restr area. We followed his radar vectors of a 215 degree heading and we squawked 7700 when he told us and other aircraft to do so.

Related reports:

Google
 

Original NASA ASRS Text

Title: ZJX CTLR INSTRUCTED ACFT DEVIATING AROUND A TSTM NEAR A MIL RESTR AREA TO SQUAWK 7700 EMER.

Narrative: ZJX PUT US ON A VECTOR TO DEVIATE E OF A LINE OF TSTMS THAT STRETCHED SW TO NE THROUGH NORTHERN FLORIDA AND GEORGIA. NUMEROUS ACFT WERE DEVIATING E OF THE LINE. CTR GAVE US A RADAR VECTOR OF 215 DEGS, THEN TOLD US TO SQUAWK 7700. AS WE WERE ON A VECTOR, WE FOLLOWED HIS INSTRUCTIONS. OTHER ACFT WERE ALSO TOLD TO SQUAWK 7700. WE WERE CLR OF THE WX ON THE E SIDE OF THE LINE. WE WERE CONCERNED WHEN THE CTLR TOLD US AND THE OTHER ACFT TO SQUAWK XPONDER CODE 7700, THAT HE MAY HAVE VECTORED US INTO A MIL RESTR AREA. WE FOLLOWED HIS RADAR VECTORS OF A 215 DEG HDG AND WE SQUAWKED 7700 WHEN HE TOLD US AND OTHER ACFT TO DO SO.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.