Looking for some input to maximize the scanning capabilities of my BCD436HP, as far adding ProVoice EDACS, DMR and NXDN. Can they be downloaded one upgrade at a time over a period of time or do they all kind of work together. Can’t justify purchasing all at one time so looking to do over a couple months. I live in the Greater Hartford, CT area and my scanner interests are Police, Fire & EMS. Any ideas which one is going to serve better by downloading first. Any help would be greatly appreciated.