That's a 200MHz spacing at a 4400MHz working frequency. For some sort of physical filter this stuff tends to work in terms of percentages. That is only somethin

That's a 200MHz spacing at a 4400MHz working frequency. For some sort of physical filter this stuff tends to work in terms of percentages. That is only something like 5%. So pretty close. Normally you have lots of space to waste at higher frequencies for guard bands and you can allocate compatible uses for next door bands. Still, when you get a powerful transmitter right next door there are often problems. The previous tenants of that spectrum (C band satellite downlinks) used to have a problem with interference from radar altimeters. So I suppose there is some sort of karmic process here where the service that used to cause interference is now the service that is getting hit with interference.