Neutrik BNC connector Plug, straight 75 Ω NBNC 75 BFG 7 1 pc(s) NBNC75BFG7 Information Guide

Product codes
NBNC75BFG7
Page of 8
Document: NWP01, Version 1.0 
5/8 
MEASUREMENTS 
5 Return 
Loss 
5.1 Measurement 
Setup 
 
Figure 3 
5.2 Measurement 
Conditions 
Return loss measurement has been carried out with Neutrik NBNC75BTU11 75 Ω BNC connectors. 
To compare the results of the Neutrik connectors, we have chosen the BNC connectors of a European 
manufacturer (Standard series & HD optimized series), whose products are widely spread in broad-
cast applications across Europe, as reference.  
All tested cable assemblies have been terminated with 20 m of the well-known Belden 1694A 75 Ω 
coax cable. 
 
a)  Single cable (length 20m) with both ends terminated for connector evaluation 
 
 
 
 
SMPTE 424M
3
 specifies a return loss of better than 10 dB between 1.485 GHz and 3 GHz and better 
than 15 dB from 5 MHz to 1.485 GHz (values below SMPTE limits are indicated red in Figure 4). 
All test specimens were sweep tested up to 4.5 GHz. 
5.3 Measurement 
Results 
 
Figure 4 
DUT