The first repeater on Gontyniec Hill was built in 1996. This is the FM cross-band 145.787.5 (-600 kHz) / 439.500 MHz; Tone: 233.6 Hz (2m & 70cm). In year 2002, APRS digipeater was added as SR3TK-15. After successful tests, APRS digi got own call sign SR3DGT. Finally, SR3TK is for cross-band repeater and SR3TK-1 for APRS Weather Station.