M1
Post Code and Country Multipliers. The multiplier for a band is the sum of the number of different DXCC countries and UK post code areas worked on that band.
M2
QTH Locator Multiplier. The multiplier for a band is the sum of the number of different large locator squares (e.g. JO01,IO91 etc.) worked on that band
M3
Post Code, Country and QTH Locator Multiplier. The multiplier for a band is the sum of the number of different DXCC countries, U.K. post code areas, and large QTH locator squares (e.g. JO01,IO91 etc.) worked on that band.
M4
Country and QTH Locator Multiplier. The multiplier for a band is the sum of the number of different DXCC countries, and large QTH locator squares (e.g. JO01,IO91 etc.) worked on that band