Frequencies using on WGC:

122.20 MHz - Main Contest frequency - Call sign “Ostrów Radio” - Main frequency for ALL CLASSES (for all airport operations at the contest site including marshalling, launch, finish, landing, return to tie down).    122.70 MHz - Alternate frequency (for advising start gate opening, official announcements and for gaggle safety).

    Class Frequencies. One frequence for each class (5.3.1.b):
    125.075 MHz - club class
    127.025 MHz - standard class
    128.575 MHz - 15 m class

Other active Frequency from Poland (some of them are on the map)

129.625 MHz/ 126.125 MHz/ 120.225 MHz/ 135.675 MHz/ 124.700 MHz/ 124.950 MHz/ 132.125 MHz/ 120.450 MHz/ 124.325 MHz/

112.700/ 114.500/ 114.200/ 116.100 / 114.600/ 114.800/ 112.800/ 117.300/ 115.800/ 113.850/ 116.200/ 114.700/ 115.100/ 117.700/ 114.750/ 111.050/ 112.200/ 116.600/ 113.450/ 111.650/ 114.900/ 110.650/

131.000/ 132.425/ 126.750/ 121.175/ 128.250/ 121.750/ 122.750/ 119.650/ 127.275 /118.100/ 121.075/ 135.400/ 123.250/ 126.125/ 121.025/ 129.025/ 121.750/ 129.250/ 136.425/ 125.350/ 133,075/ 124.225/ 125.200/ 123.000/ 126.575/ 133.075/ 136.250/ 135.425/ 134.000/ 119.850/ 129.025/ 119.975/ 129.675/ 119.000/ 122.050/ 126.025/ 126.800/ 121.250/ 125.175/ 127.500/ 118.025/ 128.800/ 125.050/ 129.375/ 118.300/ 121.900/ 127.225/ 120.250/ 118.750

122.100/ 122.300/ 122.400/ 122.500/ 122.600 122.800/ 122.900
129,675/ 119,000/ 128,025/ 123.000/ 125,000/ 119,150