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Description
Key Features and Benefits
- Includes 1/4 watt resistance.
- Return loss for BCP-TK: 26.4 dB @ 3GHz, 15dB @ 12GHz
- Our unique elongated body design enables easy attachment and removal.
75 ohm BNC Termination Plugs12G-SDI
Type | Model | Description | Standard package |
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BCP-TK | True 75 ohm Termination, for 12G-SDI | 20pcs / 100pcs |
no image | BCP-TK-CH | BCP-TK with String |
< Return loss >
Return loss for BCP-TK
Technical Note
Voltage Standing – wave Ratio (VSWR) and Return Loss
Terminating the receiving end of a limited length coaxial cable using a resistance value not equal to its characteristic impedance creates a reflected wave that returns back down the cable to the sending end. The result is interference developing between the travelling wave and the return wave which results in a standing wave that causes voltage levels to fluctuate. The degree to which terminating resistance matches the characteristic impedance is indicated using the VSWR or voltage standing-wave ratio standard shown in Fig. 1. Going hand in hand with the VSWR ratio is the return loss factor which measures the size of the reflected wave current in relation to the travelling wave current. (See Fig. 2)
Fig. 1 Voltage Distribution Over Coaxial Cable
VSWR | Return Loss (dB) |
---|---|
2 | 9.54 |
1.5 | 13.98 |
1.2 | 20.83 |
1.1 | 26.44 |
1.05 | 32.26 |
1.02 | 40.09 |
1.01 | 46.06 |
Fig. 2 VSWR to Return Loss Conversion Table
Additional information
Standard package, pcs. | 20pcs., 100pcs. |
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