[2.1.8] no ingame hint about radar circuit network features

[sczsne]

[expected] the item description, factoriopedia, or tips and tricks interfaces explain that radar can be used to transmit signals over distance without wire
[actual] no mention of the mechanic anywhere ingame
[reproduction] look at the item description for radars or their factoriopedia entry
fail to learn about radar circuit features

most mechanics in factorio are either explicitly explained or arise from experimentation, but i think that this feature isn't as likely to be discovered because it's a bit of a leap in logic that radars would be useful this way, given their primary function, so it'd be best to make note of it for players who haven't heard about it through patch notes or word of mouth

[valneq]

Sorry, but this is the description of a feature request. This is not a bug report.

[boskid]

There is a circuit button when you open a radar, i will count this as good enough clue.