Atec Agilent-E4406A - Manual (Page 11)

11
Modulation accuracy measurement (composite rho)
Composite rho is measure of the performance of a
cdma2000 transmitter’s modulation circuitry. Composite
rho can be measured for multichannel structure, i.e., a
pilot channel with multiple traffic channels.
Range at RF input +30 to –50 dBm
EVM
Range 0 to 25%
Floor 2.0% or less for pilot only signal
Resolution 0.01% display resolution
I/Q origin offset
Range –10 to –50 dBc
Resolution 0.02 dB display resolution
Frequency error
Range ±500 Hz
Accuracy ±10 Hz + transmitter accuracy
(nominal)
Resolution ±0.01 Hz display resolution
Intermodulation distortion
Range at RF input +30 to –20 dBm
Input intermodulation –20 to –65 dBc
power range
Relative accuracy ±1.5 dB
Resolution 0.01 dB display resolution
Spectrum emission mask measurement
Range at RF input +30 to –20 dBm
Spectrum emission
≤
–136 dBc/Hz at 1 MHz offset
power range (nominal)
Relative accuracy ±1.0 dB
Resolution 0.01 dB display resolution
Occupied bandwidth measurement
Range at RF input +30 to –20 dBm
Frequency
Resolution 1 kHz
Accuracy ±3 kHz
1xEV-DO (Option E4406A-204)
Channel power measurement
1.23 MHz integration BW
Range at RF input +30 dBm to –80 dBm
Absolute power accuracy for in-band signal
(excluding mismatch error), 18 °C to 30 °C
+30 to –28 dBm ±0.6 dB
at RF input
–28 to –50 dBm ±0.8 dB
at RF input
–50 to –80 dBm ±1.0 dB
at RF input
Power statistics CCDF measurement
Range at RF input
Maximum +30 dBm (average)
+40 dBm (peak)
Minimum –40 dBm (average)
Code domain measurement
For Pilot, 2 MAC channels, 16 channels of QPSK data
Code domain power
Range at RF input +30 to –50 dBm (nominal)
Accuracy ±0.3 dB (nominal, spread
(Pilot, MAC, Data channel power is within 20 dB
QPSK Data 8PSK) of total power)