Is it safe to get rid of older radar installations once you roll out Hyperwave Decoders?
I've built Hyperwave Decoders in 5 of my 6 bases, with near-global coverage. I thought I read somewhere that you no longer really need Large and Small radar facilities once that's in place, so I dismantled most of them to regain space. But I noticed a couple new alien bases spawn this month, which were detected by my Hawkeye (one Hybrid Embassy, and another Alien Colony). I didn't used too get much in the way of bases spawning before, certainly not two at once. Am I'm missing some UFO's due to lack of the older radars? Or was it probably just a coincidence?