According to the manual, the BFO test frequencies should be: high: 4916 - 4917 Khz low: 4909 - 4912 Khz When I run the tests, I get: High: 4917.20 Low: 4912.33 Is this a problem or is this within an acceptable margin of error? If this is bad, where should I be looking for the cause? Thanks. 73! Harlan Braude KC2KUK