CREATE TABLE table_67920 ("Program" CLOB, "Frequency MHz" FLOAT, "ERP kW" FLOAT, "Polarisation" CLOB, "Antenna Diagram around  ( ND )  / directional  ( D ) " CLOB)

What is the average MHz Frequency of radio rezonans?
SELECT AVG("Frequency MHz") FROM table_67920 WHERE "Program" = 'radio rezonans'
SELECT AVG("Frequency MHz") FROM "table_67920" WHERE "Program" = 'radio rezonans'