At the moment the power saving features are not clear to me. I need to be filled in on some details on the following which are not described in the manual:
- For the GPS power saving feature, I assume that the higher you turn the battery saving, the less frequently the GPS updates its position. Does anyone know the exact correlation between battery saving setting and rate of update? Does no power saving result in position updates every second, 50% setting indicate position updates every 30 seconds?
- For the receiver battery save feature, based on this post (https://groups.io/g/hx870/topic/12457543#35) the battery save setting is basically a duty cycle setting. For example, at 50% battery saving the radio will sleep for 100ms then wake for 100ms (50% duty cycle). Does this feature stay active during channel scan? I set it to 90% saving, which in theory would sleep the radio 900ms (nearly a full second) then wake for 100ms to check for signal. However channel scan appears visually to be scanning through channels at full speed, which cannot be if the receiver is truly at 10% duty cycle!?
To test battery life I fully charged the radio, turned it on this morning at 6:30am with GPS battery saving at 75% and receiver battery saving at 70%, and scanning my 7 favorite channels, and played with the menus for probably 30 minutes. It is now 5 hours later and the display is showing 2/3 remaining, but time will tell how fast it goes down from here. The front of the radio remains warm which tells me it's using a lot of power for something.