Originally posted by cometguy I'm wondering how good the GPS receiver is in the camera. My car has an excellent GPS receiver that has worked flawlessly (showing my location accurately on the built-in screen map) even when I've been far from cellphone signals in deep, remote, wilderness mountain valleys -- but my car has a lot more room to host a better receiver than does a DSLR. I would think that size and quality of receiver matters when in remote locations like that.
Please remember that GPS is satellite based. Location based on mobile phone towers (Cell towers) is a secondary method of determining where you are. I have two old PDA's that have either GPS add-ons (Compaq iPaq) or built in GPS functionality (HP rx5915).
The GPS in Pentax cameras is based on GPS satellite data not mobile towers, which is why it works when you are out in the boonies. I have GPS tagged images from Yellowstone's NE entrance (Wyoming), the Quinault Rain Forest (Washington St.) and out in the English Channel on the Ferry. There were no cell signals in those three areas. The images were geotagged by my K-3II based on satellite's not cell phone towers. Don't confuse the two technologies.
From the Lamar Valley - Yellowstone National Park, Wyoming (Emphasis mine)
GPS Version ID : 2.3.0.0
GPS Latitude Ref : North
GPS Longitude Ref : West
GPS Altitude Ref : Above Sea Level
GPS Time Stamp : 17:04:16
GPS Satellites : 09
GPS Status : Measurement Active
GPS Measure Mode : 3-Dimensional Measurement
GPS Speed Ref : km/h
GPS Speed : 3.59
GPS Track Ref : True North
GPS Track : 99.58
GPS Img Direction Ref : True North
GPS Img Direction : 358.75
GPS Map Datum : WGS-84
GPS Processing Method : GPS
GPS Date Stamp : 2019:09:26
GPS Altitude : 1920.8 m Above Sea Level
GPS Date/Time : 2019:09:26 17:04:16Z
GPS Latitude : 44 deg 54' 45.58" N
GPS Longitude : 110 deg 23' 19.98" W
GPS Position : 44 deg 54' 45.58" N, 110 deg 23' 19.98" W