![]() Interpreting the information in the COAX Trace allows important conclusions to be drawn. Figure 4 shows a representative COAX Trace for this condition. The reflections should occur at the sum of the length of the input and respective output branches. There should be one and only one reflection for each branch. Only the reflections off the un-terminated ends of the output branches will be seen. Therefore, when hooked into a 75 ohm cable system there will be little to no reflection at the splitter since there isnt an impedance change. What will the COAX Trace show if splitter is a high quality type?Īn ideal or high quality splitter has the characteristic of looking like a 75 ohm impedance device across a wide frequency range on input and output ports. L2 and 元 are connected to the output ports of the splitter and are un-terminated. It has three branches of lengths L1, L2 and 元 respectively. ![]() With this simple knowledge, a user can view the TDR trace and determine if there are impedance mismatches due to a splitter and how many times a signal is split.Ĭonsider the following example of coax cabling which has a 2 way splitter being tested by a CableIQ (Figure 2). The size of the reflection is a function of the size of the impedance change. If the change in impedance is lower then the reflection is negative. If the impedance change goes higher, for example an open circuit, the reflection is positive. TDR is like radar and signals reflect off each point where there is an impedance change. The CableIQ implements a TDR (Time Domain Reflectometry) like technology that allows it to determine the location of impedance changes. The TDR trace will contain information to generally assess the quality of the splitter and how many times it is split. Once a splitter has been detected, the user can inspect the COAX TDR Trace to look at the reflections on the coax run and determine other information. The CableIQ running in Coax Discover Mode can detect the presence of a splitter in a coax run and alert the user. However, the technology implemented in the CableIQ now allows this information to easily be determined. In the past, detecting the presence of splitters, their quality and the number of splits has been very difficult to do without specialized test equipment. Yes, the CableIQ can detect the presences of splitters in a coax system, but not always show their location (output branches must be un-terminated). ![]() 82 Kg / 1.8 lb (Unit only) / 1.18 Kg / 2.Can the CableIQ detect the presence of splitters? In/Out Terminal: Color-Coded RCA female connectors.Video Distrotion: 20Hz to 60KHz (+/- 0.1dB). ![]() For Digital (PCM)/Composite/Stereo Audio.(4) Outputs Digital/Composite/Audio (RCA).(1) Input Digital/Composite/Audio (RCA).The 1x4 Distribution Amplifier works with satellite and cable set-top boxes, DVD players, D-VHS players and all other equipment that is equipped with proper audio connections. A built in amplifier will boost the signal to the needed level, to prevent signal loss and Audio Distortion. Capable of splitting a Digital/Analog Audio signal from (1) source to (4) devices with compatible inputs. The SB-3710 is a 1x4 DigitalAnalog Audio Distribution Amplifier is designed to work as a splitter for Digital/Analog Audio applications. ![]()
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