SiliconDust's ATSC 3.0 tuners list equivalents of ATSC 1.0 channels with the ATSC 1.0's virtual channel numbers plus 100. So 102 and 166 are probably ATSC 3.0 channels 2 and 66. If you can't see them they're probably DRM encoded, which SD's tuners aren't allowed to show (yet).

The latest version of Hdhomerun Signal Meter (for Android) is 1.25, dated July 6, 2015. It's available from several sources. I recommend Apkpure:
https://apkpure.com/hdhomerun-signal-meter/com.zaren


Do you have another link that doesn't force you to install a Chrome extension?

I tried ...

The latest version of Hdhomerun Signal Meter (for Android) is 1.25, dated July 6, 2015. It's available from several sources. I recommend Apkpure:
https://apkpure.com/hdhomerun-signal-meter/com.zaren