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We run through a rapid set of real-world low voltage questions, from multimeter cable length estimates to what your certifier’s “Level 3E” label really means. We also dig into the jobsite choices that quietly drive callbacks, disputes, downtime, and overheated equipment.

• estimating copper cable length with loop resistance and a multimeter, plus what impacts accuracy
• understanding Level 3 vs Level 3E cable certifiers and why backwards compatible is not forwards compatible
• defining the uncertainty zone and why we never accept star pass or star fail results
• troubleshooting marginal certification results through terminations, pair untwist, damage, bend radius, and tester setup
• explaining fiber connector undercut and how it can affect insertion loss and reflectance
• setting practical vertical clearance for stacked cable tray tiers to help today’s install and future adds
• weighing the risks of electrical transformers in telecom rooms, including heat, space, and separation guidance
• preventing OSP cable damage with pulling tension limits, breakaway swivels, grips, bend radius, and inspections
• breaking down mediation vs arbitration and why documentation and change orders matter
• translating asynchronous vs synchronous transmission into plain English examples
• setting fusion splice loss expectations, what to troubleshoot, and why customer specs win
• simplifying redundancy terms N, N+1, N+2, 2N, and 2N+1 with an easy UPS example
• choosing security camera FOV based on distance, resolution, identification goals, and sun position over the year
• managing heat in small enclosed cabinets with PoE switches, UPSs, open space, and fan kits

Make sure you send your questions for next week’s show.

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We walk through the cable test results that look “fine” until you understand what the graphs are really saying, from split pairs that still link up to length readings that don’t match reality. Along the way, we share practical ways to spot water intrusion, validate extended distance copper, and avoid patch cord mistakes that can quietly break PoE.
• split pairs and transposed pairs causing crosstalk and data loss even with a link light
• cable length vs electrical length plus propagation delay and delay skew for gig speeds
• why NVP settings matter and how faked settings show up in project-wide test reviews
• return loss patterns that point to water in the cable and using HDTDR to locate it
• pulling lubricant vs water symptoms and how insertion loss can improve as lube dries
• extended distance cabling and selecting vendor-specific test limits in the tester
• alien crosstalk testing workflow using saved results, disturbed links, and disturbers
• thin patch cords, PoE risk from rising resistance, and using the correct adapters for patch cord tests
So make sure you join us for this conversation and let me know in the comments below if you enjoyed this episode and should I do more like this?
Email Chuck at advertising at letstalkcabling.com and let's connect your brand to the right audience today.

Support the show

Knowledge is power! Visit our webpage to find out ways you can support the show. Also if you would like to be a guest on the show, please complete the application.

Chuck Bowser RCDD TECH
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We get hands-on with return loss, impedance, and wiremap faults to show how small physical choices in cable and connectors turn into measurable performance problems. We also share practical ways to use LinkWare and HDTDR diagnostics so you can stop guessing, pinpoint faults faster, and deliver results clients will actually accept.

• using certification testers proactively to validate jacks, patch panels, and install practices before full deployment
• why LinkWare files beat screenshots for troubleshooting and trend spotting across large projects
• what return loss measures and how impedance changes create reflections that hurt gig and multi-gig performance
• why matching cable and connectors as a system improves impedance consistency and throughput margin
• real-world failure example using screw-terminal “Category” wall plates and how HDTDR reveals end spikes
• how over-cinched zip ties and regular spacing distort cable geometry and push return loss into marginal territory
• the “star pass” problem and how codes, standards, best practices, manufacturer rules, and contracts collide
• using HDTDR to localize damage and distinguish return loss issues from crosstalk behavior
• wiremap fault walkthroughs for opens, shorts, and rolled pairs plus what distance-to-fault really means
• why cheap wiremap testers can miss split pairs and create hard-to-explain network problems
• pass-through connector controversy framed as crimper fit, blade maintenance, and workmanship
• why field-terminated IDC connectors can reduce bad crimps and resistance imbalance within a pair

if you have not joined the Let's Talk Cabling crew, do it. Link below.
starting October, we're flipping the schedule. We're going to start doing live streams on Monday night at 6 p.m. And we're going to start doing the podcast on Wednesday night.
We'll see you in Philly at Texgiving October 23rd through the 25th.
Email Chuck at advertising at letstalkcabling.com and let's connect your brand to the right audience today.

Support the show

Knowledge is power! Visit our webpage to find out ways you can support the show. Also if you would like to be a guest on the show, please complete the application.

Chuck Bowser RCDD TECH
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We share major schedule changes, quick industry updates, and a rapid-fire Q&A that gets honest about what it really takes to pass BICSI exams. We break down what to study first, how the hands-on portion works, and the cabling fundamentals that separate confident techs from guesswork.
• podcast and livestream schedule flip starting October 1
• acronym challenge and what JCAHO stands for
• industry notes on BICSI hiring and upcoming manual updates
• how to prioritize Technician exam study by percentage and impact
• building a realistic study plan and putting concepts into field context
• hands-on exam structure, retest rules, and how to practice under time
• choosing Installer 2 Copper, Installer 2 Fiber, or Technician based on scope
• why splicing is over-feared and what SOL-2 Fiber really tests
• RCDD eligibility options and what counts as design experience
• study hours reality check and why experience can work against you
• what to expect on RCDD test day and how to prepare your brain
• twist rates, crosstalk, shielding types, and what cable markings mean
• category bandwidth, encoding basics, and distance limits in real installs
Reach out to Bixie, apply. If you do, make sure that you tell them Chuck sent you.
Join the LTC crew by clicking on that little QR code up there

Support the show

Knowledge is power! Visit our webpage to find out ways you can support the show. Also if you would like to be a guest on the show, please complete the application.

Chuck Bowser RCDD TECH
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We walk through what to do when a certification tester returns a fail and why guessing wastes the most time and money. Mike Pennacchi
joins us to break down near-end crosstalk results and show how to prove whether the issue is your settings, your connector, or the cable itself.

• why certification testing matters for manufacturer warranty work
• the three most common reasons a NEXT test fails, starting with the wrong test limit
• how cable type selection can change NVP without changing the test limit
• why you stop after the first failed test and verify the setup screen
• how to read NEXT charts to find the failing pair combination
• how comparing main vs remote results points to which end is bad
• how Fault Info and HDTDX help locate crosstalk along the cable
• pin numbers vs pair numbers and why techs mix them up
• clues for wrong-category connectors and workmanship problems
• when “your cable may be damaged” means replacement, not retermination
• how rare manufacturing defects happen and why spool testing sometimes matters

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Wednesday night, 6 p.m. Eastern Standard Time, what are you doing?

If you find value in this content, will you click on that QR code right there? You can buy me a cup of coffee. You can even schedule a one-on-one call with me after hours, of course. You can even buy Let's Talk Cabling merchandise.
Email Chuck at advertising at letstalkcabling.com and let's connect your brand to the right audience today.

Support the show

Knowledge is power! Visit our webpage to find out ways you can support the show. Also if you would like to be a guest on the show, please complete the application.

Chuck Bowser RCDD TECH
#CBRCDD #RCDD

Send us Fan Mail

Support the show

Knowledge is power! Visit our webpage to find out ways you can support the show. Also if you would like to be a guest on the show, please complete the application.

Chuck Bowser RCDD TECH
#CBRCDD #RCDD

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We make the case that mentorship is the best free education in cabling, ICT, and the broader construction tech world, and we explain why it works better than most formal training. We also break down how companies can design mentoring programs that build trust, improve onboarding, and grow future leaders without forcing awkward pairings.

• defining mentorship beyond technical training
• qualities of strong mentors, including emotional intelligence and listening
• what makes a good mentee, regardless of years in the field
• targeting interns, entry-level staff, and new hires for early impact
• choosing a hybrid model that balances voluntary and assigned support
• setting measurable program goals like retention, promotions, and knowledge transfer
• matching mentors to mentee needs and using more than one mentor
• building trust first, then moving into skill and career goals
• providing resources like guides, prompts, and suggested meeting cadence
• using sponsorship and shared experiences to keep engagement high
• running post-cycle reviews and improving the program over time
• handling ghosting, bad fits, and re-matching without blame

Start building a mentorship program now.
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Support the show

Knowledge is power! Visit our webpage to find out ways you can support the show. Also if you would like to be a guest on the show, please complete the application.

Chuck Bowser RCDD TECH
#CBRCDD #RCDD

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We take rapid-fire questions on how AI data centers, Wi-Fi 7, and smart building demands are reshaping structured cabling, fiber, and day-to-day field expectations. We also get blunt about what protects your schedule, your margin, and your reputation when owners change their minds late and the job still has to ship.

• planning for higher density fiber counts and multi-fiber connectors in data centers
• leveling up fiber testing by understanding loss budget, not just pass or fail
• choosing Cat 6A for Wi-Fi 7 and knowing when Cat 6 can still work
• using the RCDD study handbook to confirm eligibility and map next steps
• writing specs around performance requirements so AI changes do not instantly obsolete designs
• treating labeling, bend radius, and pathways as troubleshooting insurance
• documenting owner-driven changes to manage overtime, rework, and expedite costs
• standardizing workmanship and building training timelines that new hires can trust
• picking up networking fundamentals for AV over IP and server or switch configuration
• improving closeout documentation as digital twin expectations rise
• updating labor units with real productivity data as crews and skill levels change
• designing bigger pathways and respecting fill ratios as AI rack density grows

Go download and read the RCDD study handbook V.15.

Support the show

Knowledge is power! Visit our webpage to find out ways you can support the show. Also if you would like to be a guest on the show, please complete the application.

Chuck Bowser RCDD TECH
#CBRCDD #RCDD