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Typical power measurement accuracy 880 to 915 MHz

Typical power measurement acuracy +41 to -5 dBm

Pulse on/off ratio measurement (requires option 006)

‘On’ power is averaged over the useful part of the burst. ‘Off’ is

averaged over a one bit interval centered at a user specified time.

Non-hopped mode only.

Input frequency setting range: ± 10 kHz.

Input level setting range: ± 3 dB.

Timing accuracy: ± 1.7 µs (± 1.1 ms typical).

Accuracy (on/off ≥ 40 dB, RF in/out only):

Off power (dBm) On/off ratio accuracy

–30 to –1 ± 2.4 dB ± 1.1 dB typically

–37 to –30 ± 2.9 dB ± 1.3 dB typically

–41 to –37 ± 3.7 dB ± 1.7 dB typically

–47 to –42 ± 4.2 dB ± 2.1 dB typically

Amplitude envelope measurement

After one timeslot, 577 µs, from an isolated receiver hop trigger in

the GSM frequency bands.

Measurement range

RF in/out: -6 to +41 dBm.

Aux RF in: -36 to +20 dBm.

Input frequency setting range: ± 10 kHz.

Inaccuracy due to noise (for overshoots 1 dB):

Relative Input level setting error

level

± 1 dB ± 3 dB ± 3 dB w/5

averages

0 dB < ± 0.15 dB < ± 0.2 dB < ± 0.2 dB

peak peak peak

–6 dB < ± 0.2 dB < ± 0.3 dB < ± 0.3 dB

–30 dB < +3.0 dB < +4.2 dB < +2.2 dB

–3.8 dB –7.5 dB –2.6 dB

Phase and frequency measurements

After one timeslot, 577 µs, from an isolated receiver hop trigger in

the GSM frequency bands.

Range

RF in/out: -6 to +41 dBm.

Aux RF in: -36 to +20 dBm.

Input frequency setting range: ± 10 kHz.

Input level setting eange: ± 3 dB.

RMS phase error accuracy: ≤ 1° rms.

RMS phase error uncertainty versus measured value

Peak phase error accuracy: ≤ 4° peak.

Frequency error accuracy: ± [0.02 ppm (18 Hz) + reference

accuracy], for normal bursts.

Typically ± [0.03 ppm (27 Hz) +

reference accuracy] for RACH

bursts.

Supplemental characteristics

After three timeslots, 1.73 ms, from an isolated receiver hop trig-

ger in the GSM frequency bands.

RMS phase error accuracy: ≤ 0.5° rms.

Peak phase error accuracy: ≤ 2° peak.

Frequency error accuracy: ± [0.01 ppm (9 Hz) + reference

accuracy], for normal bursts.

± [0.02 ppm (18 Hz) + reference

accuracy], for RACH bursts.

870 880 890 900 910 920

-0.6

-0.4

-0.2

0.2

0.4

0.6

Frequency (MHz)

Accuracy (dB)

Measurement Power Level is +33 dBm

-10 0 10 2 0 3 0 40

-0.6

-0.4

-0.2

0.2

0.4

0.6

Power (dBm)

Accuracy (dB)

Measurement Frequency is 975 MHz

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5

0.1

0.2

0.3

0.4

0.5

0.6

Measured Result (Deg rms)

Uncertainty (Deg rms)

Specified Typical

1 2 3 4 5 6 7 8 9 10 11 12 ... 17 18

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Agilent Technologies 8922S Manual do Utilizador Página 7

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