KALO, which signed on the air July 9, 1999, is one of six stations in Honolulu that air religious programming, the other five being KWHE, KAAH-TV, KWBN, KKAI and KUPU. KALO's allocation channel, like that of KWBN and PBS outlet KHET, is reserved for non-commercial educational use, and as such, the station depends on viewer donations for support.
On January 15, 2009, KALO became channel 38 digital when the digital transition was completed.[3]
On April 13, 2017, the FCC announced that KALO was relocated to RF channel 18[4] on June 21, 2019[5] as a result of the broadcast incentive auction.[6]