The Phase Shifting Field Award Series (PSFA) has been devised by the European PSK Club on 12th December, 2010 for two-way PSK contacts with various Grid Fields, based on the Maidenhead Grid System. There are 324 Grid Fields, 10-degree latitude by 20-degree longitude rectangles lettered AA through RR, covering the entire world.

Every Grid Field can be worked on 9 (nine) different HF bands (160, 80, 40, 30, 20, 17, 15, 12, and 10 m), and on 6 (six) different PSK modes (BPSK31, BPSK63, BPSK125, QPSK31, QPSK63, and QPSK125). As a result, every Grid Field can be represented 9 x 6 = 54 times (max) in band-mode combinations when applying for the award. The maximum practically unachievable score is 324 x 54 = 17496 field-band-mode combinations.

PSFA 500, PSFA 1000, PSFA 1500, and PSFA 2000 awards may be claimed by any licensed radio amateur, club station or DMS/SWL eligible under the EPC Awards General Rules who can produce evidence of having contacted (monitored) 500, 1000, 1500, and 2000 different field-band-mode combinations respectively. Please make sure that the «GRIDSQUARE» field in your ADIF log contains the Maidenhead Grid Square for each contacted station. This is a mandatory requirement which will enable the manager's software to check your application correctly. This award series has no time or date restrictions.