Off-line test to greatly reduce test time
100X faster than on-line testing with CMTS in mass production
Single 1.25 GHz wide capture bandwidth and advanced triggering for spurious emissions tests
500 MHz generator bandwidth for interoperability and impairment tests
Single-insertion US and DS
Expandable from single-DUT to multi- DUT
Clock error estimation and correction
Thông số kỹ thuật
F type connectors and impedance matching
Switch for single-insertion DS and US test
US signal level trigger for spurious emission testing
System-level calibration output port
DS: z8751 VSG+ z8811A RF Signal Conditioning:
High band, 250 MHz to 6 GHz, -105 dBm to +16 dBm
Low band, 5 MHz to 250 MHz, -60 dBm to +24 dBm
Modulation bandwidth up to 500 MHz
Low band or high band switch
z8453 IF Digitizer:
5-204 MHz upstream testing
z8751 VSG:
47-1794 MHz downstream testing
z8815 DOCSIS Signal Conditioning:
US: z8453 Digitizer + z8811A RF Signal Conditioning:
5 MHz to 1.25 GHz, -20 dBm to +30 dBm reference level
Analysis bandwidth 1.25 GHz
-165 dBm/Hz noise floor
US Loopback Residual MER:
52.5 dB @ 40 dBmV, 4096 QAM