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Chapter 4, Test, Parameter, and Pass/Fail Limit Descriptions
Pass/Fail Limit 11, RX Hum and Noise Squelched
Pass/Fail Limit 11, RX Hum and Noise Squelched
This sets the pass/fail limits for receiver hum-and-noise testing, with squelch set
to maximum.
Pass/Fail limits are determined from an applicable radio specification or industry
standard, such as:
• Radio specification: Hum and Noise
• Industry standard: EIA/TIA-603, Section 2.1.11, Hum and Noise Ratio.
For Example:
If your radio standard defines hum and noise, squelched, as 57 dB minimum and
you want to test the radio’s lower limits only, you would enter
57 in the lower-
limit column and
0 in the upper-limit column. Limits are entered in dB.
It’s Used in the Following Test:
TEST_11. RX Hum and Noise