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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions

Pass/Fail Limit 15, RX Threshold Squelch Sensitivity

This sets the pass/fail limits for testing audio-squelch sensitivity, with squelch and

volume adjusted for the “threshold squelch” setting.

Pass/Fail limits are determined from an applicable industry standard, such as:

• Industry standard: EIA/TIA-603, Section 2.1.13, Audio Squelch Sensitivity

For Example:

From the EIA standard, if your radio operates in the 400 MHz frequency range,

threshold squelch sensitivity for the radio should be 0.5 µV. In this case, enter

0 in

the lower-limit column and

5 in the upper-limit column. Limits are entered in µV.

It’s Used in the Following Tests:

TEST_15. RX Audio Squelch Sensitivity

TEST_20. RX Quick Test