• JEFA Tech Low Loss 400 Coax
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JEFA Tech LL400 / LL400FR

JEFA Tech LL400 / LL400FR

SKU / Part Number:

LL400FR-B500

$399.95
$399.95 $399.95

Most orders ship the same day when ordered by noon EST. Do you have an urgent need? Contact us, we can accommodate you!

JEFA Tech Low Loss 400 is a high performance alternative to CommScope® WBC-400, Times Microwave Systems LMR®-400, Belden® 9914 / 9913 / 7810 and Andrew® CNT-400 coax cable.

Two types available
LL400 = standard jacket, UV rated, direct burial, Compare to LMR-400
LL400FR = fire retardant jacket (LSZH), UV rated, direct burial, same specs and performance as LL400, Compare to LMR-400FR

TECHNICAL SUMMARY:

  • 50 ohm impedance
  • .405" outer diameter (same as RG-8, RG-213, LMR®-400, etc)
  • Lightweight, Flexible
  • Polyethylene Jacket - provides full waterproofing and UV Protection
  • Solid Copper Clad Aluminum Center Conductor
  • Direct Burial Rated - no conduit needed
  • Double Shielded for low loss and interference rejection
  • First Shield: Bonded aluminum foil with 100% coverage
  • Second Shield: Tinned copper braid with 98% coverage
  • Foam Dieletric - adds to flexibility and performance
  • 5 year warranty, 20+ year life expectancy
  • Uses same size connectors as RG-8, RG-213, LMR®-400 size cable, including standard PL-259's

Comparison of Popular .405" Size Coax
Attenuation (Signal Loss) per 100/ft - (lower numbers are better)

Frequency / Band JEFA
LL400		 Times
LMR®-400		 Andrew
CNT-400		 RG-8/U
RG-213/U
7 Mhz (40 meters) 0.33 0.33 0.33 0.49
14 Mhz (20 meters) 0.46 0.46 0.46 0.70
28 Mhz (10 meters & CB) 0.65 0.65 0.65 1.01
50 Mhz (6 meters) 0.88 0.88 0.88 1.36
144 Mhz (VHF) 1.50 1.50 1.50 2.38
220 Mhz (VHF) 1.86 1.87 1.87 3.00
450 Mhz (UHF) 2.71 2.71 2.71 4.46
900 Mhz (UHF) 3.90 3.90 3.90 6.64
1.5 Ghz (MW) 5.12 5.12 5.12 8.99
2.5 Ghz (MW, WiFi) 6.76 6.76 6.76 12.32
5.8 Ghz (MW, WiFi) 10.8 10.8 10.8 21.28


Are you an amateur radio operator? This cable is the same size as RG-8 and RG-213 and will accept the same connectors! Standard PL-259 connectors fit with no adapters needed. Upgrade your shack to this higher quality, much lower loss cable today! It will dramatically reduce your signal loss on VHF and UHF. It will increase your receive signal and handle more power on HF.  JEFA Tech coax is used by many fine ham radio operators world wide and is even used by the experimental HAARP (High Frequency Active Auroral Research Program) in Alaska.

CB OPERATORS - Get the most bang for your buck by upgrading your coax cable to JEFA Tech LL400.  Trusted by many CB operators for years.

JEFA Tech®, Registered trademark of JEFA Tech, Inc.
LMR®, Registered trademark of Times Microwave Systems

Customer Reviews

Based on 11 reviews
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C
Christopher Nelsen
Good value

Performance was as expected. Cu Al clad center conductor

E
Eric Henery
LL-400, RG 213

When I need Coax, Jefa Tech is where I go. Fast Shipping and GREAT Product!

J
John Gager - K7KB
Great Durability

I've had my SteppIR antenna up about 10 years now and recently had to bring it down for a refurbishment. Upon inspecting the coax (LL400), it look almost exactly the same as the day it was installed. No real deterioration of the jacket was noticed at all. I did a cable loss test using my analyzer and it came out to .95 DB at 50 mHz, which is what I would expect for a 125' run. I have another antenna I will be putting up along with the SteppIR after the refurb and you can be sure it will be JEFA Tech cable feeding it!

F
Frank E. Pattillo
Great value.

I have found no difference is the use of the JEFA Tech Low Loss 400 Coax over the actual LMR 400 cable. It have the same ohms and durability. The RG 59 connectors fit securely and have not indicated a brittle center conductor as I have found on some equivalent type coax.I would recommend the JEFA Tech Low Loss 400 to all my friends.

d
davec
Good, inexpensive

Works fine. Good sub for $1= TM cable.

I have 130 feet of it out to a 40/80M dipole. its not burial cable, but it lays on the ground in water to no ill effect.

Only drawback I have seen is that the extra flexibility is not good when trying to work with 100 feet plus in the yard, it tends to kink whereas the stiffer TM cable does not. Not a huge problem, just be careful un-rolling it.

Thank you for the review Dave! Just a tip - with any coax you want to roll out the coil, like a wheel, or else it will be prone to kinking. Best bet for a long length before putting it up on the tower is to roll it out straight in the yard, then pull it up the tower. That way you won't have any kinks. Also it is direct burial rated - you mentioned it was not. You can lay it directly on the ground or bury it in non-rocky soil without conduit with no problem. Thanks!

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