Squawk 7777 --24/7? x2

[marcdeklerk]

hi there, my RB have been displaying the codes 7777 (2 aircraft) for the last month 24/7. The hex codes are 006552 and 006553.
The only info given in RB is the Mode S code and squawk, no other info.I phoned my local airport's radar controller (FAJS) and he reported nothing on radar? If I disconnect my external antenna the aircraft dissapears, as a result I dont think it's my RB. However using the supplied antenna on a hill nearby, they are back and also coded 006551 and 006554 ? (4 aircraft) or rather transmitters?

I live in a vally 5nm north of FAJS and have coverage 100ft agl from takeoff and landing aircraft.

can someone maby explain this?

Regards
Marc

[tarbat]

Squawk 7777 is allocated to SSR Transponder Trials according to my list of squawk codes.  So probably some sort of local testing being carried out.

[marcdeklerk]

I guess no.. thanks

[RodBearden]

Hi Marc

Good to see some returns on the network from you today - hope it continues!

Rod

[Terry]

Hi Mark,
            I don`t  if you have this Squawk (7003) but i had an alert today and low and behold abvout 30 secs later over came the Red Arrows(its their transit code).Nice to see on the RB,but even better,or a bonus when they shoot past at about 2000ft.Just popped those codes into Airframes.Org and they both come back as from Mozambique,no aircraft details, just their country of origin.
                                     Regards Terry.