Agilent Technologies E6385A manual =4 Output Power Adjustment Error, Output Power Error, Rho

Reference

Specifications (Pass/Fail Limits)

=4 Output Power Adjustment Error

]tq—q –m——5rmux xuyu±— pq±q”yuzq ±tq ymzzq” uz tuot ±tq –“q” yq±q” uxx nq pu—–xmqp4 ctqz ±tq –“q” yq±q” pu—–xm u— —t“z2 u± uxx uzox®pq ymv“” ±uow ym”w— that indicate the adjustment range for power settings. If you enter ±1 dB as the limits, the meter will be drawn with the ideal setting in the center and major tick marks 1 dB up and 1 dB down from center.

Units are dB.

7.Output Power Error

These pass/fail limits determine whether the power measurement made in automated testing meets specifications. (The previous pass/fail limits setting (Output Power Adjustment Error) controls the adjustment diagram in power meter use.) If you set power error pass/fail limits of ±2 dB, these limits will be used when a power reading is made. If the power measured is more than 2 dB from the desired setting, a fail indication (F) will result.

NOTE	In general, it is best to have the Output Power Adjustment Error limits set narrower
	(smaller) than the Output Power Error limits.

Units are dB.

8.Rho

These pass/fail limits are used when measuring rho, a measure of the modulation quality of a CDMA transmitter. Typically, only the lower limit is checked.

This measurement has no units.

9.Time Offset

These pass/fail limits are used when measuring the transmitter time-alignment to system time.

Units are ∝s (microseconds).

10.Emission Bandwidth

These pass/fail limits are used as the bandwidth in measuring for two points centered around the carrier, outside of which all emissions are attenuated at least 26 dB below the carrier transmit power.

Units are MHz (megahertz).

116 Chapter 5

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