Quick Start Guide for 3680A/B Cable and Antenna Analyzer
In addition, in the menu of cable models, this Analyzer also provides [Head], [Foot], [Page Up] and [Page
Down] menu to make it easier to search cable model.
6.
DTF measurement distance and resolution
: In DTF analysis, measurement distance is influenced by
sweep span and sweep points of frequency as well as transmission speed of electromagnetic wave in the
cable to be measured. The smaller the sweep span is, the longer the measured maximum distance will be.
The more the sweep points are, the longer the measured maximum distance will be.
In terms of cable loss, nominal value of effective directionality of 3680A/B is equal to or more than 42dB.
If the reflected signal energy is less than the effective directionality, the valid test result is not available.
DTF measurement resolution is related to frequency sweep span. The wider the sweep span is, the higher
the resolution will be.
