Now, there has been debate over the order of the frequencies, but I can confirm the above are correct. I was listening to Radio Repair last night, and they said that the sprinkler system was having trouble and staying locked on Channel 5. I checked and found the sprinkler system on 508.0875 MHz, which the above listing states is Channel 5. The only question that I have is, where does 508.1625 MHz go in that list?