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120 Chapter 3

S:\agilent\83217\OPT001\BOOK\CHAPTERS\passfail.fm

Pass/Fail Limit (Specification) Descriptions

12. TXA Audio Response Dev from 6 dB/oct (dB)

12. TXA Audio Response Dev from 6 dB/oct

(dB)

This sets the pass/fail limits used in TEST_06 - TXA Audio Frequency

Response for the degree of closeness with which the frequency deviation

of the transmitter follows the prescribed 6 dB/octave pre-emphasis

characteristic curve. Upper and lower limits must be entered in dB.

Pass/fail limits are determined by using any applicable standard such

as:

• EIA/TIA Standard: Transmit-Audio Response

Example

If you desire that from 300 to 3000 Hz the audio frequency response

should not vary more than

±2 dB from a true 6 dB/octave pre-emphasis

curve, enter

−2 as the Lower Limit and 2 as the Upper Limit.

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Carrier 38TXA Guide Guia do Utilizador Página 120