Fluke DTX-GFM2 - Page 274

DTX Series CableAnalyzer
Technical Reference Handbook
13-20
Table 13-3. Level IV Accuracy Performance Parameters per IEC Guidelines (cont.)*
Parameter Baseline Field Tester
Field Tester with Level IV
Permanent Link Adapter
Field Tester with Level IV
Channel Adapter
Source/load return
loss
1 MHz to 300 MHz:
20 – 12.5 log(f/100),
20 dB maximum
300 MHz to 600 MHz: 14 dB
1- 300 MHz: 18 – 12.5 log(f/100), 20 dB maximum
300 MHz to 600 MHz: 12 dB
Random Noise Floor 100 - 15 log(f/100),
90 dB maximum
95 - 15 log(f/100), 85 dB maximum
Residual NEXT 90 – 20 log(f/100)
(measured to 85 dB maximum)
85 - 20 log(f/100)
(measured to 85 dB
maximum)
72.4 - 15 log(f/100)
(measured to 85 dB
maximum)
Residual FEXT 80 - 20 log(f/100)
(measured to 85 dB maximum)
75 - 20 log(f/100)
(measured to 85 dB
maximum)
60 - 15 log(f/100)
(measured to 85 dB
maximum)
Output Signal Balance 40 - 20 log(f/100)
(measured to 60 dB maximum)
37 - 20 log(f/100) (measured to 60 dB maximum)
* DTX-1800 up to 900 MHz. DTX-1200 and DTX-LT up to 350 MHz.