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

Pass/Fail Limit 13, RX Squelch Blocking

This is used with Pass/Fail Limit 16, RX Tight Squelch Sensitivity to set the pass/

fail limits for testing a receiver’s squelch blocking. The limits you set determine

how much the receiver’s output is allowed to drop as a continuous signal level is

applied and the modulation frequency is varied from 300 Hz to 3 kHz.

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

• Industry standard: EIA/TIA-603, Section 2.1.14, Squelch Blocking

For Example:

If your industry standard states that the receiver’s output should not drop more

than 10 dB and you want to test the radio’s upper limit only, enter

0 in the lower-

limit column and

10 in the upper-limit column. Limits are entered in dB.

It’s Used in the Following Test:

TEST_16. RX Squelch Blocking