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E1962B Datasheet(PDF) 26 Page - Keysight Technologies |
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E1962B Datasheet(HTML) 26 Page - Keysight Technologies |
26 / 27 page 26 | Keysight | E1962B cdma2000/IS-95/AMPS Mobile Test Application - Technical Overview CDMA analyzer (continued) Single channel GPS source E1999A-206 single channel GPS source GPS signal output RF IN/OUT or RF OUTPUT only GPS signal frequency 1.57542 GHz GPS signal output level range –70 to –125 dBm GPS signal output level accuracy < ± 1.0 dB, –70 to −116 dBm, < ± 1.5 dB, −116 to −125 dBm Code type Coarse/Acquisition (C/A) Chip rate 1.023 Mcps Settable parameter Satellite ID, data patterns, and filters Perceptual evaluation of speech quality (PESQ) measurement E1999A-301 PESQ measurement The PESQ measurement provides an objective method for prediction of vocoder speech quality using the industry standard PESQ algorithm Supported service options SO1, SO3 (EVRC vocoder), SO17, and SO32768 (13 k vocoder), SO68 (EVRC-B), SO70 (EVRC- WB) Measurement mode Downlink audio, uplink audio, or downlink and uplink simultaneously Speech source Male or female Expected audio input peak voltage (downlink mode) 1 mV to 2.000 V Maximum audio output peak voltage (downlink mode) 0 to 5.0000 V Uplink PESQ score –0.50 to +4.50 Downlink PESQ score –0.50 to +4.50 PESQ uplink headroom 0 to 100.0 dB PESQ downlink headroom 0 to 100.0 dB External reference input Input frequency 10 MHz Input frequency range Typically < ± 5 ppm of nominal reference frequency Input level range Typically 0 to +13 dBm Input impedance Typically 50 Ω General specifications Timebase specifications Internal high stability 10 MHz oven-controlled crystal oscillator (OCXO) Aging rates Aging rates: < ± 0.1 ppm per year, < ± 0.005 ppm peak-to-peak per day during any 24-hour period starting 24 hours or more after a cold start Temperature stability < ± 0.01 ppm frequency variation from 25 °C over the temperature range 0 to 55 °C Warm-up times 5 minutes to be within ± 0.1 ppm of frequency at one hour, 15 minutes to be within ± 0.01 ppm of frequency at one hour Accuracy after a 30-minute warm-up period of continuous operation is derived from Typically ± (time since last calibration) x (aging rate) + (temperature stability) + (accuracy of calibration) Initial adjustment Typically ± 0.03 ppm Measurement speed Typical measurement speed based on using at least a 600 MHz Pentium II processor PC and with the display off mode selected on the E5515C/E; measurement speeds include the total time from GPIB measurement request until the controller receives the result using the INT/FETCH commands; due to variations of trigger latencies and internal test set processor loading, individ- ual measurement times may be faster or slower; measurement speeds also vary depending on the controller GPIB environment and processor speed. External reference output Output frequency Same as timebase (internal 10 MHz OCXO or external reference input) Output level Typically > 0.5 V rms Output impedance Typically 50 Ω Trigger output Frame clock output User-selectable output of 20 ms, 80 ms, or 2 s Remote programming GPIB IEEE Standard 488.2 GPIB help Pressing the front panel help key and then any other key will cause the test set to display the GPIB syntax for that command at the bottom of the front panel display; pressing the help key again exits this mode of operation Remote front panel lockout Allows remote user to disable the front panel display to improve GPIB measurement speed Implemented functions T6, TE0, L4, LE0, SH1, AH1, RL1, SR1, PP0, DC1, DT0, C0, and E2 Save/Recall registers Storage capacity Five registers that store the complete instru- ment state except for active cell call processing status (fixed labels of register 1 to 5); registers are non-volatile Recall Allows user to recall one of the 5 stored instrument states |
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