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Top 5 Low-Loss External Antenna Extension Cables with TNC Connectors in Canada for 2025 — Expert Guide for Outdoor and Industrial LTE Links

Published on Monday, August 25, 2025

Low-loss extension cables fitted with threaded TNC connectors deliver a weather-resistant, mechanically robust connection for outdoor and industrial antenna installations. These assemblies are popular across Canadian applications — from rural tower links and municipal small cells to rooftop IoT gateways and fleet telemetry — because they minimize RF attenuation on 2G, 3G and 4G LTE bands while resisting vibration, moisture and repeated field handling. Buyers in Canada typically prioritize cable loss per metre, connector durability, UV and freeze-thaw resistance, and compatibility with common outdoor mounts. The category appeals to installers, integrators, and network operators who need predictable link margins, simple field termination with threaded TNCs, and cable assemblies that stand up to coastal salt, cold winters, and mixed urban/rural deployments.

Quick Menu

1. Best Premium Performance

2. Best Installer / Network Grade

3. Best Value LMR-400 10ft

4. Best Slim Low-Loss Alternative

5. Best Compact RG-195 Option

1
BEST PREMIUM PERFORMANCE

Times Microwave LMR-400 TNC Male to TNC Male Cable Assembly

TIMES MICROWAVE SYSTEMS

Times Microwave's LMR-400 TNC Male to TNC Male assembly is the benchmark for low-loss external antenna extensions, offering dense foam dielectric and extensive shielding for minimal attenuation and long-term durability. It earns the top position for longest-distance and mission-critical installations compared with the other products on this list because its proven construction delivers lower signal loss and lower lifecycle replacement costs despite a typically higher upfront price.

4.6
★★★★☆

  • Ultra low-loss (nerd-approved)

  • Rugged jacket (tough-as-nails)

  • Ultra low-loss (nerd-approved)

  • Rugged jacket (tough-as-nails)

Review Summary

92%

"Users praise the Times Microwave LMR-400 for its exceptional build quality, very low loss and reliable TNC terminations; common complaints are stiffness and a higher price compared with cheaper alternatives."

  • Stable impedance (signal-hugging)

  • True LMR-400 low-loss construction for minimal signal attenuation on longer runs

  • Stable impedance (signal-hugging)

  • True LMR-400 low-loss construction for minimal signal attenuation on longer runs

Time-Saving Convenience

Skill Development & Mastery

Times Microwave's LMR-400 TNC Male to TNC Male assembly is the benchmark for low-loss external antenna extensions, offering dense foam dielectric and extensive shielding for minimal attenuation and long-term durability. It earns the top position for longest-distance and mission-critical installations compared with the other products on this list because its proven construction delivers lower signal loss and lower lifecycle replacement costs despite a typically higher upfront price.

  • Ultra low-loss (nerd-approved)

  • Rugged jacket (tough-as-nails)

  • Stable impedance (signal-hugging)

  • True LMR-400 low-loss construction for minimal signal attenuation on longer runs

  • Factory-terminated TNC male connectors with precision crimp for consistent RF contact

  • Ultra low-loss (nerd-approved)

  • Rugged jacket (tough-as-nails)

  • Stable impedance (signal-hugging)

  • True LMR-400 low-loss construction for minimal signal attenuation on longer runs

  • Factory-terminated TNC male connectors with precision crimp for consistent RF contact

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From 252.95$
2
BEST INSTALLER / NETWORK GRADE

Ventev TerraWave TWS-400 TNC Male to TNC Male Cable Assembly

Ventev (TerraWave)

Ventev's TerraWave TWS-400 assembly pairs LMR-400-class electrical performance with installer-focused features and enterprise supply options, making it a strong choice for large-scale cellular and IoT deployments. It competes closely with Times Microwave on loss characteristics but often provides better price/performance and warranty packaging for customers prioritizing total cost of ownership over maximum ruggedization.

4.5
★★★★☆

  • Outdoor-ready (braves the storm)

  • Consistent SWR (radio-friendly)

  • Outdoor-ready (braves the storm)

  • Consistent SWR (radio-friendly)

Review Summary

90%

"Buyers report the Ventev TerraWave TWS-400 delivers professional-grade low-loss performance and rugged connectors suited for outdoor installs, though some note it is relatively expensive and available in limited lengths."

  • Flexible run (snake-like agility)

  • LMR-400-equivalent coax optimized for low loss across cellular and Wi‑Fi bands

  • Flexible run (snake-like agility)

  • LMR-400-equivalent coax optimized for low loss across cellular and Wi‑Fi bands

Time-Saving Convenience

Eco-Friendly Living

Ventev's TerraWave TWS-400 assembly pairs LMR-400-class electrical performance with installer-focused features and enterprise supply options, making it a strong choice for large-scale cellular and IoT deployments. It competes closely with Times Microwave on loss characteristics but often provides better price/performance and warranty packaging for customers prioritizing total cost of ownership over maximum ruggedization.

  • Outdoor-ready (braves the storm)

  • Consistent SWR (radio-friendly)

  • Flexible run (snake-like agility)

  • LMR-400-equivalent coax optimized for low loss across cellular and Wi‑Fi bands

  • Pre-attached TNC male connectors and weather-resistant jacket for external use

  • Outdoor-ready (braves the storm)

  • Consistent SWR (radio-friendly)

  • Flexible run (snake-like agility)

  • LMR-400-equivalent coax optimized for low loss across cellular and Wi‑Fi bands

  • Pre-attached TNC male connectors and weather-resistant jacket for external use

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$90-230 CAD

3
BEST VALUE LMR-400 10FT

L-com CA400TNC-10

L-com

L-com's CA400TNC-10 offers LMR-400-like low-loss performance in a broadly available, value-oriented assembly designed for contractors and systems integrators. Compared to the Times and Ventev alternatives, it is typically more cost-competitive and easier to source through distribution, though it may be slightly less optimized for the most extreme outdoor environmental conditions.

4.7
★★★★☆

  • Budget-friendly (money-smiles)

  • Precision terminations (clean fit)

  • Budget-friendly (money-smiles)

  • Precision terminations (clean fit)

Review Summary

94%

"Customers praise the L-com CA400TNC-10 for excellent shielding, consistent low loss and precise TNC terminations; a few users mention it is heavy and not very flexible for tight routing."

  • Easy installs (click-and-go)

  • 10-foot LMR-400 cable assembly delivering low insertion loss for mid-length runs

  • Easy installs (click-and-go)

  • 10-foot LMR-400 cable assembly delivering low insertion loss for mid-length runs

Time-Saving Convenience

Skill Development & Mastery

L-com's CA400TNC-10 offers LMR-400-like low-loss performance in a broadly available, value-oriented assembly designed for contractors and systems integrators. Compared to the Times and Ventev alternatives, it is typically more cost-competitive and easier to source through distribution, though it may be slightly less optimized for the most extreme outdoor environmental conditions.

  • Budget-friendly (money-smiles)

  • Precision terminations (clean fit)

  • Easy installs (click-and-go)

  • 10-foot LMR-400 cable assembly delivering low insertion loss for mid-length runs

  • Factory-crimped TNC male terminations for reliable, repeatable connections

  • Budget-friendly (money-smiles)

  • Precision terminations (clean fit)

  • Easy installs (click-and-go)

  • 10-foot LMR-400 cable assembly delivering low insertion loss for mid-length runs

  • Factory-crimped TNC male terminations for reliable, repeatable connections

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$100-160 CAD

4
BEST SLIM LOW-LOSS ALTERNATIVE

Proxicast ANT-140-010 Low-Loss 240 TNC Male to TNC Male Cable

Proxicast

Proxicast's ANT-140-010 uses a 240-series low-loss cable to prioritize flexibility, lighter weight, and a lower price point, making it well suited for short to medium external runs and tight routing scenarios. While its insertion loss is higher than the 400-series options from Times, Ventev, and L-com for long runs, its handling and cost advantages make it the practical choice for indoor or short-span external extensions.

4.4
★★★★☆

  • Low-loss 240 (signal-savvy)

  • Highly flexible (yoga-mat bendy)

  • Low-loss 240 (signal-savvy)

  • Highly flexible (yoga-mat bendy)

Review Summary

88%

"Reviewers like the Proxicast ANT-140-010 for offering good low-loss performance and solid value, with most reporting reliable connectors; a minority report occasional variability in connector finish and stiffness."

  • Corrosion-resistant (sea-salt shrugger)

  • Low-loss 0.240"-class coax providing a compact, lighter-weight option

  • Corrosion-resistant (sea-salt shrugger)

  • Low-loss 0.240"-class coax providing a compact, lighter-weight option

Time-Saving Convenience

Eco-Friendly Living

Skill Development & Mastery

Proxicast's ANT-140-010 uses a 240-series low-loss cable to prioritize flexibility, lighter weight, and a lower price point, making it well suited for short to medium external runs and tight routing scenarios. While its insertion loss is higher than the 400-series options from Times, Ventev, and L-com for long runs, its handling and cost advantages make it the practical choice for indoor or short-span external extensions.

  • Low-loss 240 (signal-savvy)

  • Highly flexible (yoga-mat bendy)

  • Corrosion-resistant (sea-salt shrugger)

  • Low-loss 0.240"-class coax providing a compact, lighter-weight option

  • Pre-terminated TNC male connectors for quick plug-and-play installation

  • Low-loss 240 (signal-savvy)

  • Highly flexible (yoga-mat bendy)

  • Corrosion-resistant (sea-salt shrugger)

  • Low-loss 0.240"-class coax providing a compact, lighter-weight option

  • Pre-terminated TNC male connectors for quick plug-and-play installation

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$40-90 CAD

5
BEST COMPACT RG-195 OPTION

Laird Connectivity CA195 TNC Male to TNC Male Cable Assembly

Laird Connectivity

Laird Connectivity's CA195 assembly targets OEM and industrial users with a 195-series low-loss cable that balances attenuation, flexibility, and rugged connector quality for harsh environments. It generally provides stronger mechanical ratings and shielding than 240-series alternatives and can approach 400-series electrical performance in many real-world deployments, usually at a modest premium over the most budget-focused options.

4.3
★★★★☆

  • Low PIM (quiet on airwaves)

  • Slim profile (fits tight spots)

  • Low PIM (quiet on airwaves)

  • Slim profile (fits tight spots)

Review Summary

86%

"Users find the Laird Connectivity CA195 to be a reliable mid-range cable with acceptable loss for shorter runs and durable terminations, though it is not as low-loss as LMR-400 and can be relatively stiff."

  • High-quality TNCs (connector-snug)

  • RG-195/CA-195 style low-loss coax tuned for VHF/UHF performance

  • High-quality TNCs (connector-snug)

  • RG-195/CA-195 style low-loss coax tuned for VHF/UHF performance

Skill Development & Mastery

Time-Saving Convenience

Laird Connectivity's CA195 assembly targets OEM and industrial users with a 195-series low-loss cable that balances attenuation, flexibility, and rugged connector quality for harsh environments. It generally provides stronger mechanical ratings and shielding than 240-series alternatives and can approach 400-series electrical performance in many real-world deployments, usually at a modest premium over the most budget-focused options.

  • Low PIM (quiet on airwaves)

  • Slim profile (fits tight spots)

  • High-quality TNCs (connector-snug)

  • RG-195/CA-195 style low-loss coax tuned for VHF/UHF performance

  • TNC male-to-male factory terminations for secure, low-reflection connections

  • Low PIM (quiet on airwaves)

  • Slim profile (fits tight spots)

  • High-quality TNCs (connector-snug)

  • RG-195/CA-195 style low-loss coax tuned for VHF/UHF performance

  • TNC male-to-male factory terminations for secure, low-reflection connections

Order Now

$60-140 CAD

Why low-loss coax and TNC connectors matter — evidence-based basics

Practical RF performance comes from two linked elements: the coaxial cable's electrical properties (dielectric, shield, conductor size) that determine attenuation, and the connector interface that affects return loss and mechanical reliability. Laboratory measurements and field trials consistently show that choosing a lower-loss cable and a properly implemented TNC connector improves usable link margin, reduces the need for higher-power radios or additional repeaters, and lowers long-term maintenance. Environmental testing (UV, salt spray, thermal cycling) and controlled insertion/withdrawal cycles for threaded connectors also show clear differences in lifespan between general-purpose and purpose-built outdoor assemblies.

Attenuation increases with frequency; selecting a cable optimized for cellular bands preserves signal strength over longer runs and reduces the need for active amplification.

Threaded TNC connectors provide better mechanical stability and resistance to vibration than push-fit variants, which reduces intermittent connections in outdoor and mobile installations.

Shielding quality and braid coverage directly affect susceptibility to external noise; higher braid coverage improves signal-to-noise ratio in electrically noisy environments.

Environmental qualification (UV exposure, salt spray, freeze-thaw) is correlated with longer in-field life for outdoor cable assemblies — look for products with weatherproof boots and corrosion-resistant plating.

Measured improvements in link margin from lower-loss cables translate into tangible operational benefits: fewer dropped sessions, extended reach from existing radios, and lower capital expenditure on additional radios or repeaters.

In the Canadian context, where installations face a mix of coastal salt, winter freeze-thaw cycles, and long rural runs, the right low-loss TNC cable assembly can make the difference between consistent LTE links and ongoing maintenance headaches. The five options covered here — Times Microwave LMR-400 TNC Male to TNC Male Cable Assembly, Ventev TerraWave TWS-400 TNC Male to TNC Male Cable Assembly, L-com CA400TNC-10, Proxicast ANT-140-010 Low-Loss 240 TNC Male to TNC Male Cable, and Laird Connectivity CA195 TNC Male to TNC Male Cable Assembly — each target different installer priorities (long runs, ruggedized housings, cost-effective lengths, compact routing, and corrosion resistance). For most Canadian outdoor and industrial LTE applications the Times Microwave LMR-400 assembly is the best overall choice due to its balance of low attenuation, proven field reliability, and broad availability. I hope you found what you were looking for; use the search to refine by cable length, frequency band, or environmental rating, or expand your search to include alternate connector types or assemblies tailored to specific Canadian climate zones.

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