8 9 6 ▁- ▁ 9 0 2   M Hz ▁and ▁ 9 3 5 ▁- ▁ 9 4 1   M Hz ▁Rece ive : ▁ 9 3 5 ▁- ▁ 9 4 1   M Hz ▁ ▁The ▁rece ivers ▁on ▁many ▁of ▁these ▁modern ▁ 8 0 0   M Hz ▁rad ios ▁can ▁be ▁easily ▁modified ▁to ▁receive ▁higher ▁than ▁ 8 7 0   M Hz , ▁to ▁about ▁ 9 0 4   M Hz ▁with ▁good ▁sens itivity . ▁In ▁addition , ▁the ▁transmit ters ▁on ▁many ▁of ▁the ▁a for ement ioned ▁ 9 0 0   M Hz ▁rad ios ▁can ▁be ▁easily ▁modified ▁to ▁transmit ▁lower ▁than ▁ 9 3 5   M Hz , ▁to ▁about ▁ 9 2 6   M Hz ▁with ▁acceptable ▁power ▁output . ▁With ▁this ▁in ▁mind , ▁many ▁am ateurs ▁have ▁opt ed ▁to ▁set ▁up ▁repe aters ▁with ▁- 2 5   M Hz ▁spl its ▁using ▁modified ▁ 8 0 0   M Hz ▁rad ios ▁as ▁rece ivers ▁and ▁modified ▁ 9 0 0   M Hz ▁rad ios ▁as ▁transmit ters . ▁ ▁A ▁number ▁of ▁resources ▁are ▁available ▁for ▁am ateurs ▁to ▁build ▁repe aters ▁that ▁can ▁be ▁used ▁on ▁the ▁ 3 3   cm ▁band . ▁ ▁Resources ▁are ▁also ▁available ▁via ▁several ▁e - mail ▁discussion ▁groups ▁( such ▁as ▁the ▁Y ahoo ▁Gr oups : ▁" AR 9 0 2 M Hz " ▁and ▁" 9