Cat6 speeds: How to make and test an Ethernet cable
Cat6 speeds depend on distance and application. Learn how to make an Ethernet cable with T568A or T568B wiring, then verify the wire map, crimp, and 1GbE or 10GbE link.
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Wi-Fi 802.11 b/g/n: What It Means and How to Choose a Range Extender or Access Point
Wi-Fi 802.11 b/g/n and BGN mode mean older 2.4 GHz compatibility, slower mixed-mode behavior, and different extension choices. Learn when to use a range extender or access point.
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Coaxial to Ethernet Adapter Setup: Carry Ethernet Over Existing Coax
A coaxial to ethernet adapter can reuse in-wall coax when both ends support its standard. Compare MoCA and G.hn, terminate Cat6, and verify link speed, throughput, isolation, and the coax path.
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LTE Band 4: How 4G Cellular Range Compares With Wi-Fi
LTE Band 4 uses 1710–1755 MHz uplink and 2110–2155 MHz downlink. Learn what frequencies 4G networks use and why cellular and Wi-Fi coverage depend on power, antennas, obstacles, and network design.
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ICMP Types in the IPv4 Packet Header: A Field-by-Field Guide
Learn how to read the IPv4 packet header, spot ICMP using the protocol field, and decode echo, unreachable, time exceeded, and redirect messages with examples.
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Free Network Mapping Software for NOC Operations
Learn how NOC teams use free network mapping software to discover devices, verify topology, link alerts, and keep maps current with clear update rules and discovery limits.
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Patch Cable vs Ethernet Cable: Cat6A Cabling and SFP Modules
Learn the difference between a patch cable and Ethernet cable, where Cat6A belongs in a permanent link, and how SFP modules match speed, media, connectors, wavelengths, peers, and diagnostics.
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LTE Band 14 Compared With Bands 3 and 30: Frequency and Compatibility
Compare LTE Band 14 with Band 3 and Band 30 by paired uplink and downlink frequencies, FDD or TDD duplexing, propagation, bandwidth, regional use, device support, and network access.
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Ethernet Color Order Guide: RJ45 Connectors and Multimode Fiber
Learn Ethernet color order for T568A/T568B, how RJ45/8P8C connectors map to jacks, patch panels, and field plugs, and how to choose OM multimode fiber, LC/SC connectors, polarity, and tests.
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dB to mW: Convert dBm to Milliwatts and dBW to Watts
dB to mW is not a direct conversion: plain dB is a ratio. Learn dBm to milliwatts and dBW to watts formulas, negative, zero, positive examples, reverse conversions, and the 30 dB offset.
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