Motorola dtr cps software1/14/2024 ![]() ![]() When I made it inside the pub, I lost the signal but walking out the front door regained it again. The signal had to penetrate all the large, wood-frame homes, mature elm trees and a large school, all within the line of sight. You don’t even need a second person to do range tests.īasically, I was able to walk about 1 to 2 kilometres through this dense residential area. If the other radio is not in range, you will instead hear a loud beep. Once the tone ends about 1/2 second later, you can start talking. This is indicated by the “Nextel-like” tone. (It has been almost 30 degrees C this past week!) When both are on, pushing the PTT causes a short ‘handshake’ to take place to make sure at least one other unit is in range. To test the range, I turned one on, left it in the kitchen and then walked down the street with a second one in my pocket while I went to the nearest pub for a cold draft. (Like any VHF or UHF portable, they are basically line-of-sight, so distance evaluations are always subjective.) ![]() Transmissions with the DTR radios are very clear and they have about the best range possible with any VHF/UHF portable radio. ![]() I review the Motorola frequency-hopping spread-spectrum (FHSS) licence-free DTR410, DTR550, and DTR650 radios. ![]()
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