No, that's not NAS. NAS is not done that way. Not close at all.
What you're describing is conventional talkgroup scan.
NAS requires access to a system key. You create the system trunking information in its entirety, with talkgroups, control channels, etc.
You then create conventional channels that have mode slaved scan lists attached to them. Those mode slaved scan list members are trunked talkgroups from the system.
For each conventional channel, you have a mode slaved trunked scan list. You are limited to 10 talkgroups (15 with a simple hack) per list.
The first 16 channels in your radio are conventional channels that you scan from, using mode slaved scan.
Above channel 16, 17 and above, is where you place the trunked systems.
You don't enable a CHANnel or menu in your (portable) radio.
Now you can't turn the knob to directly access a trunked system. This keeps you from affiliating/logging in on that system.
You can scan it via the mode slaved scan lists but you can't directly access the trunked systems which you don't want to do.
IF you program by the true Non Affiliated Scan method for Motorola trunked radios, it's safe and effective.
What you're doing is somewhat useful when you don't have access to the system key, and when the system has a very small number of active talkgroups and users. I've used that method to monitor military base security groups and there's so little other traffic on the system that it works nearly as well as properly programmed NAS scanning, with zero risk at all.
