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Measurement Accuracy and Speed
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Measurement Accuracy and Speed
The power meter has no internal ranges. The only ranges you can set are those
of the HP E-series E9300 power sensors (and other HP E-series power
sensors). With an Agilent E-series E9300 power sensor the range can be set
either automatically or manually. Use autoranging when you are not sure of
the power level you are about to measure.
Caution To prevent damage to your sensor do not exceed the power levels
specified in the section “Maximum Power” on page 35.
The Agilent 9304A sensor is DC coupled. DC voltages in excess of the
maximum value (5 Vdc) can damage the sensing diode.
Setting the Range
There are two manual settings, “LOWER” and “UPPER”. The LOWER range
uses the more sensitive path and the UPPER range uses the attenuated path in
the HP E-series E9300 power sensors (see Table 1).
Table 1 Sensor Ranges
The default is “AUTO”. In AUTO the range crossover value depends on the
sensor model being used (see Table 2).
Table 2 Range Crossover Values
Sensor LOWER range UPPER range
E9300/1/4A -60 dBm to -10 dBm -10 dBm to +20 dBm
E9300/1B -30 dBm to +20 dBm +20 dBm to +44 dBm
E9300/1H -50 dBm to 0 dBm 0 dBm to +30 dBm
E9300/1/4A E9300/1B E9300/1H
-10 dBm ±0.5 dBm +20 dBm ±0.5 dBm 0 dBm ±0.5 dBm