EAN: 676101041459
The single-channel Jensen Transformers Iso-Max VB-1BB is a passive, 75-Ohm isolator for composite (baseband) video, which prevents and eliminates hum bars caused by 60-cycle ground loops. It ensures that the video signal is faithfully delivered without noise, contamination, or artifact, even where ground voltage differences are very large such as in surveillance video systems, night clubs, video walls, broadcast stations, or industrial plants.
The VB-1BB combines 75-Ohm BNC connectors with a custom-wound Jensen transformer. This precise impedance-matched circuitry ensures minimal reflection while providing an exceptionally linear bandwidth from 10 Hz to 10 MHz, with 120 dB of ground noise attenuation.
Easy to set up with no power required, the Iso-Max VB-1BB is housed in a rugged steel enclosure fitted with screw-down flanges for easy installation in 19 racks, inside a NEMA enclosure, under shelves, or for attaching to cabinetry.
Single-channel, 75-Ohm composite video passive isolator ”eliminates hum bars caused by 60-cycle ground loops
No deterioration of picture quality
Precise impedance matching ensures minimal reflection ”combines 75-Ohms BNC connectors with a custom-wound Jensen transformer
Linear bandwidth from 10 Hz to 10 MHz, with virtually zero insertion loss
High ground isolation: 120 dB CMMR typical at 60 Hz
Rugged, electrically isolated steel enclosure fitted with screw-down flanges ”for easy installation in racks, inside a NEMA enclosure, under shelves, or for attaching to cabinetry
Plug-and-play, easy to use, no power required
Jensen Transformers VB Specs
| Type | Passive isolator, 75 Ohms |
| Channels | Single |
| Connectors | Input: 1 x BNC Output: 1 x BNC For use with standard RG59 coaxial cable |
| Insertion Loss | 10 kHz, test circuit 1 Minimum: -0.50 dB Typical: -0.72 dB Maximum: -1.00 dB |
| Differential Gain | Typical: <0.02% Maximum: 0.05% (At 3.58 MHz, FCC/NTC-7 composite, Tektronix VM700A test set, pk-pk) |
| Differential Phase | Typical: < 0.02° Maximum: 0.05° (At 3.58 MHz, FCC/NTC-7 composite, Tektronix VM700A test set, pk-pk) |
| Luminance Non-Linearity | Typical: <0.01% Maximum: 0.02% (FCC/NTC-7 composite, Tektronix VM700A test set, pk-pk) |
| Bandwidth | LF -3 dB re 10 kHz, test circuit 1 Typical: 10 Hz Maximum: 12 Hz HF -3 dB re 10 kHz, test circuit 1 Minimum: 15 MHz Typical: 20 MHz |
| Input VSWR | 1 kHz to 8 MHz, HP 3577A Analyzer & 35676A R/T test kit Typical: 1.20 Maximum: 1.30 3.58 MHz, HP 3577A Analyzer & 35676A R/T test kit Typical: 1.10 Maximum: 1.20 |
| Common-Mode Rejection Ratio | 60 Hz, test circuit 2 Minimum: 100 dB Typical: 120 dB |
| DC Bias | Allowable at input Minimum: -1 V Typical: ±0 Maximum: +16 V (None allowed at output, which has 2.6 Ohms DC resistance) |
| Capacitance | Input to output, 1 kHz Typical: 1.94 nF Input or output to case, 1 kHz Typical: 35 pF |
| Temperature Range | 32 to 158°F / 0 to 70°C (Operation or storage) |
| Voltage Difference | Minimum: 24 V RMS, 34 V peak (Input to output shield or either shield to chassis, 60 Hz) |
| Dimensions | 3.45 x 1.70 x 3.45" / 87.6 x 43.2 x 87.6 mm |
In the Box
- Jensen Transformers Iso-Max VB-1BB Single-Channel Composite Video Isolator (BNC In/Out)
- 2 Years Manufacturer Warranty
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