Which position report gives responders the most usable information when the coordinate is current and verified?
Short answer
50° 42.3′ N, 001° 18.6′ W, with a clear known-point description if useful
A complete current latitude/longitude can be plotted, while reliable local context can help nearby listeners recognise the area. Never invent precision or omit the hemispheres.
Quick check
Which position report gives responders the most usable information when the coordinate is current and verified?