Note in the case of a good splitter the CableIQ may not be able to locate it since there is no reflection off a good splitters, but it can detect there is a splitter in the cabling. The two reflections indicate that there is only a 2 way split. This is and indication the splitter is of good quality since there is no reflection for the splitter itself. 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. You can solder the conductor back together, add some insulation around the center conductor, then. The TDR trace will contain information to generally assess the quality of the splitter and how many times it is split. To properly fix it you would need to replace the cable. 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). For tablet access, HTML5 can be used to online content modules.Can the CableIQ detect the presence of splitters? System Requirements: A high speed Internet connection, Internet browser with HTML5.
100% of the schedule is determined by the participant (viewing online materials and completing quizzes). It is recommended that participants spend approximately 2 - 3 hours per week over a 12-week period, on average, completing the various course activities in order to maximize the learning benefits. Participants may contact the instructor when they have questions. The course is delivered online via the SCTE virtual classroom, during which participants view web-based course materials and complete assessments (quizzes & final) at a time that is convenient for them. Requirements for Successful Course Completion
SPLICE COAX CABLE HOW TO
Learners will also understand the field practical skills like how to splice coaxial, connectorized coax, and proper testing techniques. Topics include hardline coaxial cable connectorization, system design, signals used in a cable system, powering, aerial and underground coaxial cable construction, activation and testing, and relevant field safety topics. If you need to splice a coax cable you will have to acquire a few specialized tools and small components. The Coax Splicer Specialist course draws upon SCTE Recommended Practices for Coaxial Construction and Testing. Amazon Try Prime All Extension adapter for F-Type RG6 or RG59 coaxial cable.
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