Would people find this useful, or is a single channel sufficient?
sufficiant : maybe .. with several mods we have lots of signals, and thus we might be able to convert signals if there are conflicts, although that easily results in a big mess.
useful: "more is better" :-)
i was recently testing something and wanted to see in my base the status of two outposts. it was only 3 or 4 signals, but i had to first install converters since both outposts of course had the same signals. there might also be a wire that transmits the number of items in a chest, and i can't think of an easy way to convert so many potential signals for avoiding conflicts. multiplexing is no solution since that would require fast response and increase lag a lot.
the suggestion of 23john sounds nice and would have enabled me to easily setup the same signals from a lot of outposts or a lot of chests by putting them on channels A-Z, 0-9, etc
as far as i could see, the "low range" is 3000 (that's almost 100 chunks), and for most people that's probably already bigger than their base including a few outposts. there is also no optical indicator for the range (difficult or impossible to do with huge ranges).
thus i wouldn't mind getting more tiers, and the range being rounded to entire chunks, similar to radar, 2^n chunks range for MKn poles, eg MK0 = current chunk only, MK1 = 2 chunks range (current and neighboring = total 3 x 3), max MK4, MK5 or MK6 = 32 chunks range (total 63 x 63) = 2016 x 2016 tiles, followed by MK99 = no range limit. that would enable me to have separate areas for single outposts, and MK99 to connect everything.