On the basestation main menu, select SYSTEM/INFO   the third line down show a long string of zeros (the line that starts with “Carriers”)This is the info you need.It is also on the beltpack main menu in VIEW STATUS (an "i' in a hexagon)/RF Carrier Mask (two candle looking things) Please note the Carriers are depicted Hexadecimal so BIT 0 is the right most digit of the Carrier value found on the SYSTEM -> INFO screen on the base station. Carriers BIT 00000003E0 = BITS 5 to 9 which translates to Frequencies 5 to 9          or            1920-1930            (US / CAN)Carriers BIT 0000007FE0 = BITS 5 to 14 which translates to Frequencies 5 to 14     or            1910-1930            (LATIN/SOUTH AMERICA)Carriers BIT 03FF000000 = BITS 23 to 32 which translates to Frequencies 23 to 32 or            1880-1900            (EUR) BIT          FREQUENCY0              1937.0881              1935.3602              1933.6323              1931.9044              1930.1765              1928.4486              1926.7207              1924.9928              1923.2649              1921.53610           1919.80811           1918.08012           1916.35213           1914.62414           1912.89615           1911.16816           1909.44017           1907.71218           1905.98419           1904.25620           1902.52821           1900.80022           1899.07223           1897.34424           1895.61625           1893.88826           1892.16027           1890.43228           1888.70429           1886.97630           1885.24831           1883.52032           1881.792