Option 11: gsm audio test – Atec Anritsu_MT8801C User Manual
Page 16
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Marker functions
Signal search: PEAK
➞
CF, PEAK
➞
REF
Zone marker: NORMAL, DELTA
Marker function: MARKER
➞
CF, MARKER
➞
REF, ZONE
➞
SPAN
Peak search: PEAK, NEXT PEAK, NEXT RIGHT PEAK, NEXT LEFT PEAK
Functions
Measure function
Noise power: dBm/Hz, dBm/ch
C/N: dBc/Hz, dBc/ch
Occupied bandwidth: N% of power method, X-dB down method
Adjacent channel power: Reference total power method, reference level method, channel designate display
(2 channels x 2), graphic display
Average power within a burst: Average power of time domain waveform within specified time
Number of data points: 501 points
Detector mode
POS PEAK: Displays max. point between sample points
NEG PEAK: Displays min. point between sample points
SAMPLE: Displays momentary value at sample points
Others
Display memory
Trace A: Displays frequency spectrum
Trace B: Displays frequency spectrum
Trace time: Displays time domain waveform at center frequency
Storage function:
NORMAL (refreshed), VIEW (frozen), MAX HOLD (displays maximum envelope), MIN HOLD
(displays minimum envelope), AVERAGE, CUMULATIVE, OVER WRITE
◆ Option 11: GSM audio test
Decoding
Frequency range: 50 Hz to 4 kHz
characteristics
Level range: 0 to 3.2768 V
Accuracy: ±1 Hz (500 Hz to 2 kHz)
Frequency range: 50 Hz to 20 kHz
Setting resolution: 50 Hz
Accuracy: Same as reference oscillator
Output level range: 50 mVrms to 3 Vrms (EMF)
Setting resolution: 0.1 mV
AF oscillator
Accuracy (bandwidth:
Ͻ
30 kHz)
Unbalanced output: ±0.5 dB (1 kHz,
Ն
1 mV), ±1 dB (20 Hz to 20 kHz,
Ն
1 mV)
Floating output: ±2 dB (1 kHz,
Ն
1 mV)
Output impedance
Main output: 600
Ω
, 50
Ω
(unbalanced, BNC connector)
Microphone input: 600
Ω
(floating, DUT interface)
Waveform distortion (bandwidth:
Ͻ
30 kHz):
Ͻ
–50 dBc (1 kHz, 1 Vrms),
Ͻ
–45 dBc (20 Hz to 20 kHz, 1 Vrms)
Frequency range: 50 Hz to 4 kHz
Coded signal
Setting resolution: 50 Hz
Level range: 0 to 2.2 V
Setting resolution: 0.1 mV
AF level
Frequency range: 30 Hz to 20 kHz
measurement
Level range: 1 mVrms to 30 Vrms
Accuracy: ±0.5 dB
AF frequency
Frequency range: 30 Hz to 20 kHz
measurement
Level range: 30 mVrms to 30 Vrms
Accuracy: ±0.1 Hz
Tx measur
ement
Rx measur
ement