MOBILE COMMUNICATIONS MEASURING INSTRUMENTS

MOBILE COMMUNICATIONS MEASURING INSTRUMENTS
Amplitude
measurement
Frequency range: 50 MHz to 3 GHz, 50 MHz to 2.3 GHz (with option 08)
Input level: –40 to +40 dBm (average power, high-power input), –60 to +20 dBm (average power, low-power input),
–80 to +10 dBm (average power, low-power input, pre-amplifier: on∗1)
Transmitter power measurement
Measurement range: 0 to +40 dBm (average power, high-power input), –20 to +20 dBm (average power, low-power input),
–20 to + 10 dBm (average power, low-power input, pre-amplifier: on∗1)
Accuracy: ±0.4 dB (calibrated at internal power meter)
Power measurement linearity: ±0.2 dB (0 to –40 dB)
∗Input level: ≥+10 dBm (high-power input), ≥–10 dBm (low-power input), ≥–20 dBm (pre-amplifier: on∗1) , after the range
adjusted, with the reference level setting unchanged
Filter selection function: Power measurement through RRC (α = 0.22) filter
Transmitter power control measurement function: Relative power per slot, NO/GO evaluation
Occupied bandwidth
measurement
Frequency range: 50 MHz to 3 GHz
Input level: –40 to +40 dBm (average power, high-power input), –60 to +20 dBm (average power, low-power input),
–80 to +10 dBm (average power, low-power input, pre-amplifier: on∗1)
Sweep mode: Displays result after signal measured with sweep spectrum analyzer
FFT mode: Displays result after FFT
Adjacent channel
power measurement
Frequency range: 50 MHz to 3 GHz, 50 MHz to 2.3 GHz (with option 08)
Input level: +10 to +40 dBm (average power, high-power input), –10 to +20 dBm (average power, low-power input)
Sweep method (all): Calculates and displays result after signal measured with sweep spectrum analyzer
Sweep method (separate): Calculates and displays power after each adjacent channel measured with sweep spectrum analyzer
Filter method: Measures and displays power of adjacent channels after passing via built-in receiving filters (RRC: α = 0.22)
Measurement range
Input level: +20 to +40 dBm (high-power input), 0 to +20 dBm (low-power input)
≥55 dBc (5 MHz offset), ≥62 dBc (10 MHz offset)
∗Filter method, wide dynamic range mode, 1 code channel
≥50 dBc (5 MHz offset), ≥60 dBc (10 MHz offset) ∗At 16 multi-code channel
Input level: +10 to +40 dBm (high-power input), –10 to +20 dBm (low-power input)
55 dBc (5 MHz offset), 62 dBc (10 MHz offset)
∗Filter method, wide dynamic range mode, 1 code channel (typical)
50 dBc (5 MHz offset), 60 dBc (10 MHz offset) ∗At 16 multi-code channel (typical)
Spurious
measurement
Measurement frequency: 9 kHz to 7.8 GHz (except within carrier frequency ±50 MHz)
Input level (transmitter power):
+20 to +40 dBm (average power, high-power input), 0 to +20 dBm (average power, low-power input)
Measurement method
[Sweep method]
Sweeps the specified range of frequency using the spectrum analyzer, and then detects and displays the peak value.
Calculates the rate for transmission power value and displays it as power rate. Waveform detection mode: average
[Spot method]
Measures the specified frequency with time domain from the spectrum analyzer and then displays the average value.
Calculates the rate for transmission power value and displays it as power rate. Waveform detection mode: average
[Search method]
Sweeps the specified frequency range using the spectrum analyzer to detect the peak value, then measures the frequency
using the time domain to display the average value. Calculates the rate for transmission power value and displays it as power
rate. Waveform detection mode: average
Measurement range∗2
[Carrier frequency: 1.8 to 2.2 GHz]
≥79 dB (RBW: 1 kHz, 9 to 150 kHz, Band 0), ≥79 dB (RBW: 10 kHz, 150 kHz to 30 MHz, Band 0),
≥79 dB (RBW: 100 kHz, 30 to 1000 MHz, Band 0)
[Normal mode]
≥76 –f [GHz] dB (RBW: 1 MHz, 1 to 3.15 GHz, Band 0), ≥76 dB (RBW: 1 MHz, 3.15 to 7.8 GHz, Band 1)
[Spurious mode (with option 03)]
≥76 dB (RBW: 1 MHz, 1.6 to 7.8 GHz, Band 1)
I/Q signal
Input: Balanced, unbalanced
Input impedance: 1 MΩ (parallel capacity: <100 pF), 50 Ω
Balanced input
Differential voltage: 0.1 to 1 V (p-p), In-phase voltage: ±2.5 V
Unbalanced input: 0.1 to 1 V (p-p), AC/DC switchable
Measurement items:
Modulation accuracy, code domain power, amplitude, occupied bandwidth (FFT method), I/Q level
Residual vector error: <2% (rms) ∗Input level: ≥0.1 V (rms), DC coupling
I/Q level measurement: Measures and displays each I, Q input voltage (rms, p-p)
I/Q phase difference measurement:
When the CW signal is inputted to I and Q input terminals, measures and displays the phase difference between I- and
Q-phase signals.
∗1: Can be set when MS8608A-08 option is installed in the main frame.
∗2: When carrier frequency is in a 2030.354 to 2200 MHz range, spurious will be generated at the frequency below.
f (spurious) = f (input) – 2030.345 MHz
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