Geraniotis, Evaggelos A.Exact expressions for the probabilities P (I,m-l1k) of I correct packet receptions and m-l erroneous ones, out of total k packets contending in a slot, are presented for the case of frequency- hopped spread-spectrum random-access slotted networks employing random frequency hopping pattems. These expressions are difficult to evaluate numerically for values of m > 3. However, our numerical analysis indicates that under light traffic conditions these probability values are very close to the ones provided by the independent receiver operation assumption, under which, the distribution of multireception obeys the binomial law.en-USTechnical Report