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Summary of Contents for Viavi HST-3000
- Page 1 HST-3000 VDSL QUICK CARD WIDEBAND NOISE Revision 9.0 Technical Assistance: 1-866-228-3762 TAC@jdsu.com March 2012 © 2012 JDSU. All rights reserved.
- Page 2 V D S L 2 Q U I C K C A R D Wideband Testing - Wideband Noise Wideband Testing Defi nitions Before beginning description of the Wideband test feature found on the HST-3000 it is important the techni- cian has a basic understanding of two main principles. •...
- Page 3 – again, usually at least 15 minutes or more if an Impulse Noise problem is suspected and requires further troubleshooting. Procedure 1. Connect the Tip and Ring test leads from the HST-3000 to the desired pair. Connect the ground lead to a valid earth ground reference (connected to HST as shown in the fi gure on Page 1).
- Page 4 V D S L 2 Q U I C K C A R D Wideband Testing - Wideband Impulse Noise Procedure (continued) 8. Press the Start soft key to begin the test the test will run continuously until the Stop soft key is pressed. 9.
- Page 5 Reference noise 0 dBr n = -90 dBm • Scale shows the relationship between dBm and dBrn Th e HST-3000 WB2 SIM can measure Impulse Noise Th resholds by using either a dBm or a dBrn scale. Either scale is confi gured for a •...
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