When programming a public safety scanner, Do the frequencies within each bank have to be placed in order?

And if so, and they are not placed in order ... Is there negative outcome and what is it?

When programming a public safety scanner, Do the frequencies within each bank have to be placed in order?
It's not necessary to put them in order. Due to the high speed of todays equipment there is such a tiny amount of difference in how quickly the radio receiver can switch between bands and frequencies. Personally I organize my scanning by type. It might be all the Aircraft (including ground communication in non airband); all the Fire (including pager, vehicle to vehicle, mobile to mobile) etc...

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