If you are monitoring at home, there may be an alternative way to monitor. You can monitor this system with SDR. When & if you were to use this, you can only hear one radio system at a time.
SDR setups are relatively cheap compared with a digital scanner.
Simply put, if you have the money: SDS-100 or SDS-200 (portable or mobile/base)
Want to go cheaper: BCD325P2 (portable) or BCD996P2 (mobile/base) (**must buy upgrades for DMR and NXDN) So cost is Base Price + $120
Best Value (if you can find one) a used Whistler TRX-1 (portable) with all digital and record capability: $400-500 E-Bay
Best Value: BCD996P2 (used) $375 on E-Bay (still may have to purchase NXDN/DMR keys depending on auction)
Wouldn't recommend: BCD436HP (used) for $300-ish on E-Bay (must buy DMR/NXDN keys depending on auction)
External discone antenna + coax: $50-150 plus $50.
Cheapest solution: SDR from Amazon ($38) RTLSDR V4 using free software (SDRTrunk) that can monitor MSWIN after minimal configuration. It can monitor all digital modes for free and/or little cost.