Telesend (Broadcast Only) Modifier

[Jinumon]

Hey all,

So I'm presently designing a species for a sci-fi setting, one that is naturally telepathic and which communicates primarily through the Telesend advantage. That said, I want to model their telepathy in the sense that it is "spoken aloud," that is to say, that they can "speak" more loudly or quietly, but that anyone of their own kind that is close enough will pick up what they're putting out there.

Broadcast (+50%) is a modifier available for the Telecommunication advantage, but how much would "Broadcast Only" be worth, with an inability to pinpoint target recipients?

My initial thought is -50%, as you're essentially removing the base function of the advantage (-100%) but adding in "Broadcast" (+50%). I've already significantly reduced the range to the Size/Speed/Range Table modifier rather than long range and limited it to their own species only.

Thoughts? Thanks ya'll.

Jinumon