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0.3 GMSK data recovery (8922M test set only)

After one timeslot, 577 ms, 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 error: ± 100 Hz.

Required input phase

accuracy: ≤ 5° rms, ≤ 20° peak.

Demodulation duty cycle: 1 timeslot per frame.

Outputs: Data, clock, and data valid.

Data output clock: Clocked at 1 MHz rate.

Delay, data: ≤ 1 frame (4.62 ms).

Output level: TTL.

FM demodulation output (Agilent 8922M test set only)

Range

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

Aux RF in: -36 to +20 dBm.

Sensitivity: 20 µV/Hz ± 5% (into an open cir-

cuit).

Input frequency setting range: ± 50 kHz, with ≤100 kHz

peak deviation

Input level setting range: ±3 dB.

Supplemental characteristics

3 dB bandwidth: DC to 270 kHz.

Output impedance: 600 ohm.

DC offset: ≤ 5 mV.

Pulse demodulation output (8922M test set only)

Range

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

Aux RF in: -36 to +20 dBm.

Input frequency setting range: ± 50 kHz.

Input level setting range: ±3 dB.

Rise time (10 to 90%): ≤ 2.5 µs.

Fall time (90 to 10%): ≤ 2.5 µs.

Supplemental characteristics

Output impedance: 600 ohm, dc coupled.

Output level: 2 Vpeak into an open circuit.

Output RF spectrum measurement (requires option 006)

After one timeslot, 577 ms, 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 levels for optimum dynamic range

RF in/out: +7, +17, +27, +37 dBm.

Aux RF in: -23, -13, -3, +7 dBm.

Input frequency setting range: ± 10 kHz.

Input level setting range: ± 3 dB.

Supplemental characteristics

Log linearity: ± 0.4 dB.

Amplitude flatness: ± 1.0 dB.

Amplitude resolution: 0.4 dB.

Dynamic range (dB): This describes the spectrum analyzer resolu-

tion bandwidth filter used when measuring output RF spectrum. The

dynamic range of the measurement will be a combination of this fil-

ter response and the modulation spectrum of the incoming signal.

Offset (kHz)

100 200 300 400 600 800 to 1800

Range (dB) 24 42 53 60 63 64

When using output RF spectrum due to the ramping measurement,

the dynamic range is decreased by 12 dB (due to peak hold).

Spectrum analyzer specifications (option 006)

Frequency range: 10 MHz to 1 GHz.

Frequency span/resolution

Bandwidth (coupled):

Span Bandwidth

< 50 kHz 300 Hz

< 200 kHz 1 kHz

< 1.5 MHz 3 kHz

≤ 4 MHz 30 kHz

Display: Log, 10 dB/div.

Display range: 80 dB.

Log linearity: ± 1.1 dB.

Reference level

RF in/out: +44 to -24 dBm.

Aux RF in: +23 to -55 dBm.

Non-harmonic -50 dBc max, for inputs

spurious responses: ≤ 30 dBm.

Residual responses: < -70 dBm (no input signal,

0 dB attenuation).

Image rejection: > 50 dB.

Supplemental characteristics

Level accuracy: ±2.5 dB.

Frequency overrange: To 1015 MHz.

Displayed average noise level: <-116 dBm (0 dB attenuation,

< 50 kHz spans).

1. GSM frequency bands are 880 to 915 MHz and 925 to 960 MHz.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 17 18

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Agilent Technologies 8922S Manual do Utilizador Página 8

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