Chronology of call letters WPSW

• Date: ...June 30, 1927-June 30, 1928...
• Frequency:
  • 1480 khz (...June 30, 1927...)
  • 1450 khz (...June 30, 1928...)
• Location:
  • Philadelphia, Pennsylvania (...June 30, 1927-June 30, 1928...)
• Owner of license:
  • Philadelphia School of Wireless Telegraphy (J. C. Van Horn) (...June 30, 1927-June 30, 1928...)