Hi,
As always great video. I want only correct small thing this relates developers work, not your video. Like we know from your video, counter do not show distance from NDB emitter. I don't know why developers not implemented in game, but in reality almost all MiG-21 equipped with ARK-10 or ARK-10M radio compass had this capability. Only some poor variants for Arabic countries lack it. For example a drawing from original MiG-21M pilot manual:
Inside red rectangle we can see element with description: " ARK-10 radio compass distance reader". Below photo of real cockpit:
This reader can be found even in oldest variant - MiG-21F. I hope for quick fix this problem in DCS MiG-21.