I filed the bug ER-4907 and DE has resolved this for upcoming SZ 3.5 GA release, and possibly
a patch for SZ 3.4.1.
20Mhz, 40Mhz, 80Mhz wide channels are supported, however, the decision is made not to include
channel 132 for Ukraine, so 40Mhz and 80Mhz wide channels cannot overlap 132, 136, 140, 144.
Channel plan includes: 36,40,44,48,52,56,60,64,100,104,108,112,116,120,124,128,149,153,157,161,165.
Regulated Power: 18dBm channels 36 - 48
23dBm channels 52 - 64
20dBm channels 112 - 165
VHT20 channels: 36,40,44,48,52,56,60,100,104,108,112,116,120,124,128,149,153,157,161,165
VHT40 channels: 36,40,44,52,56,60,100,104,108,112,116,120,124,149,153,157,161
VHT80 channels: 36,40,44,48,52,56,60,64,100,104,108,112,116,120,124,128,149,153,157,161