W3APL is the amateur radio club station of the Johns Hopkins University Applied Physics Laboratory in Laurel, MD. The club operates six simultaneous beacon transmitters at the APL site. Beacon transmitters are keyed using a common keyer. Beacons are on 28.296 MHz, 50.064 MHz, 144.296 MHz, 432.317 MHz, 903.056 MHz and 1296.060 MHz. For more information about APL see the JHU/APL site. Look for us on Echolink or on 147.585 simplex.