[1.11] CommNet Constellation v1.5.7 [10 January 2021] - Beta 4 of CNC+CNM for KSP 1.12.2! in Add-on Releases Posted August 14 Is ist possible that the game doesn't care about frequencies when determining the ranges? It seems to me it handels that aspect as if all antennas contribute to all frequencies. Here is my little test: - 1. Groundstation (the only one) KSC at freq. 1 - 2. Vessel 1 on runway with RA-2 at freq. 1 and communotron 16 at freq. 0 - 3. Vessel 2 28Mm up in orbit with communotron 16 at freq 0 Result: a connection. That looks like the RA-2 is helping the communotron "a fair bit".