TB 9-6695-300-50
8. Frequency Accuracy
a. Performance Check
NOTE
Calibration should be performed in an area relatively free of
environmental noise.
(1) Select a tuning fork.
(2) Strike tuning fork sharply on the edge of wooden (or plastic) bench (or table) and
indication. Record frequency counter indication.
(3) Repeat (2) above several times (at least 5) and average the recorded indications.
The average reading is the measured frequency of the tuning fork.
(4) Repeat technique of (2) and (3) above for each tuning fork.
