A battery saving technique that has been posted on the internet, provides instructions for reducing the low power setting on the TYT MD-380 / RETEVIS RT3 to approximately 100mW. Remember it is at your own risk if you try this! I have modified both my Tytera MD-380 and Retevis RT3 using these instructions on SQ9JDO’s website.
Tytera TYT MD-380 DMR Handheld
I’ve had the Tytera TYT MD-380 DMR Handheld now since last Christmas and now it has the experimental firmware and I update it regularly with the DMR ID database using WH6AV script on the Raspberry Pi, so that names and locations are shown on screen for all operators. This is a really convenient feature. The radio has been excellent, no problems …