Definitely interested. Preferably as an Admiral (not the top one though), or a Colonial Governer if earlier people get all of them.
I see what you're getting at (and Sheb's comment below yours) but I'm having a hard time visualizing how that would work in-game. I'm very open to the suggestion (especially because it allows for things like "radio boats" that are purpose-built for fleet communications) but I need someone to give me a detailed explanation.
I think what he is saying is, you pick an arbitrary EM strength for transmissions to be treated as an emission of. Then, you go to the tab on the system map which lets you check sensor ranges, and use it to see at what range sensors of that strength can detect the signals. Since, without a EM sensor, most ships and PDCs will have a base EM detection value of 1, you will need dedicated ships with strong EM passives to pick up transmissions at long range. Planets with DSTs could potentially pick up signals at very long ranges, but buoys would have short detection ranges, and so would need to be close to the target.
For example, suppose you have a destroyer on patrol in a system, and transmissions have the arbitrary EM signature of
X. If it spots something and wants to alert a planetary colony, it will have to close to at least the range where the DSTs on the planet could detect an EM emission of
X strength. However, if the planet wants to contact the destroyer and have it come dock, the destroyer will have to be close enough that
its passives could detect an emission of strength
X at the planet's location. Meaning, unless the destroyer has some massive sensors, a courier would need to be sent out with the recall orders, or the message would need to wait until the destroyer came close to the planet or any relay that has been set up.
One problem with this is it would make transponders into either a huge pain or a huge handwave; I would say just make the handwave.