3-7
3.2 Overview of Operation
3.2.1 Overview of functions
The MT8801C with Option 12 CDMA Measurement can perform CDMA TX/RX
measurement.
• CDMA TX/RX measurement --- TX/RX Measure mode
The following measurement can be performed by using the function menus displayed
on the screen.
(1) CDMA Transmitter measurement
The MT8801C can measure the items below by receiving modulated signals
from a CDMA transmitter.
• Modulation analysis
Carrier frequency, Carrier frequency error, r (waveform quality), t (timing er-
ror), vector error: RMS/Maximum value, phase error, amplitude error, origin
offset
• Gated output power (with standard line template): Slot, frame, rising edge,
falling edge
• Power meter (Note: Measures the average power with a power sensor.)
• IF level meter (Note: Measures the IF signal level of the MT8801C.)
• Standby Tx power
• Access probe Tx power
• Time response of open-loop power control
(2) Analog transmitter measurement
The MT8801C can measure the items below by outputting an AF signal to the
microphone terminal of an analog transmitter (DUT) and receiving the analog
modulated signal from the transmitter.
• RF frequency
• RF power
• FM/f M deviation
• Modulation signal (AF) level
• Modulation (AF) distortion
• Modulation (AF) frequency
(3) CDMA Receiver measurement
The MT8801C sends a digital modulated test signal to the CDMA receiver
(DUT), and the demodulation data from the receiver is input to the MT8801C.
Then the MT8801C measures the following items:
• Frame error rate (FER)
3.2 Overview of Operation