I have compiled statistics from input that was sent to me about the reliability of the Kenwood TM721/TM621 dual-band radios. The message I send asked for the following data: Number of radios owned; Time owned; Number of failures; Time owned before failure. Here is the compilation of that data. This is data only; reach your own conclusions. Also, if anyone wants a copy of the raw survey, let me know with your address and I'll send it out....Mark KC9C TOTAL NUMBER OF RADIOS OWNED: 16 AVERAGE LENGTH OF TIME OWNED: 21.2 months TOTAL NUMBER OF FAILURES: 3 AVERAGE TIME TO FAILURE: 15.3 months CALCULATED MTBF*: 113 months (9.4 years) FAILURE MECHANISMS: 1 microphone input circuit; 1 low output power; 1 unknown *MTBF = Mean Time Between Failures. For empirical data (such as this survey), it is equal to: [(Number of units) x (avg. operating time)]/(no. of failures) 73, Mark KC9C@KG6XX