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Long cables with unknown termination

Question asked by loevinnen on Jan 15, 2014
Latest reply on Feb 3, 2014 by Dr_joel
Hi,
We have a very long cable (11 km), installed on a site with access to only one end. 
We need to measure NEXT. The attenuation in the cable is on the order of 100dB. Will it be correct to do measurements without terminating the other end in the characteristic impedance? because of the high attenuation? 
Regards,
Julia  

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