Neutrik BNC connector Plug, straight 75 Ω NBNC 75 BFG 7 1 pc(s) NBNC75BFG7 Information Guide
Product codes
NBNC75BFG7
Document: NWP01, Version 1.0
6/8
5.4 Conclusion
The cable assembly with the Neutrik rearTWIST
®
75 Ω BNC Connectors offer at least 15 dB return
loss budget with respect to SMPTE 424M requirements. This is a minimum of 7 dB more return loss
budget compared to European manufactured products.
To achieve this outstanding result every Neutrik BNC connector has been adapted to the measure-
ments of a small group of cables, this guarantees the best possible performance and a minimized
return loss.
Neutrik BNC connectors feature a true 75 Ω design that meet the stringent requirements of high frame
rate HDTV and sustain consistent impedance at high frequencies up to 4.5 GHz.
The higher the frequencies the more pronounced is the "skin effect“, which means that the energy
moves to the outside of the conductor. Therefore, the plating of outer and centre contacts is more
important than for audio connectors with low frequencies - both contacts of Neutrik BNC connectors
are gold plated.
budget compared to European manufactured products.
To achieve this outstanding result every Neutrik BNC connector has been adapted to the measure-
ments of a small group of cables, this guarantees the best possible performance and a minimized
return loss.
Neutrik BNC connectors feature a true 75 Ω design that meet the stringent requirements of high frame
rate HDTV and sustain consistent impedance at high frequencies up to 4.5 GHz.
The higher the frequencies the more pronounced is the "skin effect“, which means that the energy
moves to the outside of the conductor. Therefore, the plating of outer and centre contacts is more
important than for audio connectors with low frequencies - both contacts of Neutrik BNC connectors
are gold plated.
6 Timing
Jitter
6.1 Measurement
Setup
Figure 5
6.2 Measurement
Conditions
For jitter measurements we nominated the Neutrik NBNC75BTU11 75 Ω BNC connector. To judge 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 broadcast applications
across Europe, as reference.
All tested cable assemblies have been terminated with 1m of the well-known Belden 1694A 75 Ω coax
cable.
a) Single cable (length 1m) with both ends terminated for connector evaluation
b) 10 pcs of cables (length 1m each) connected in series via adapters to exhibit the influence of sev-
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 broadcast applications
across Europe, as reference.
All tested cable assemblies have been terminated with 1m of the well-known Belden 1694A 75 Ω coax
cable.
a) Single cable (length 1m) with both ends terminated for connector evaluation
b) 10 pcs of cables (length 1m each) connected in series via adapters to exhibit the influence of sev-
eral connections as they typically occur on broadcast applications when patching signal leads
SMPTE publishes standards, recommended practices (RP), and engineering guidelines (EG) for the
video industry. SMPTE 424M, SMPTE RP184, SMPTE RP194 were considered in the actual Jitter
Measurement.
DUT
…8x DUT…
DUT
DUT