6 ft LMR400 50 Ohm Antenna Coax Cable N male/N Female

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Certified LMR-400 Ultra Low Loss Cable for CB, Ham, WiFi 2.4GHz and 0-6GHz Antenna Connections

Don't Buy Cheap Cable!  What many folks fail to realize is that poor quality antenna cable will cost you all the gain you obtain from installing an external antenna or relocating your antenna to a better location.  Badly made or wimpy 1/8 or 1/4 inch cable can cost you up to a Db a foot!  Most of the listings for LMR400 cable here on eBay are not.  When you read carefully you will find that the cable is not Times Micro, Not made in the US, and not guaranteed by a free return shipping policy if it doesn't meet your needs.

Is the cable you are looking at Described as "Compare to" "Replacement for" or "Same as" or even "Like" LMR400 or some other certified standard?  This is common with poor quality cable made in Mainland China or some other lesser known locations.  Name Brand LMR-400 cable is tested and certified to ensure you will maintain the boost in signal from your quality antennas. 1/2 (.405) inch Cable is perfect for runs when you don't want to loose signal strength but it isn't cheap, so please choose a product that will last for years and give you the service you require.

Tech Specs Connector(s) Product Description 1 x N-Series connector - male LMR400 Ultra Low Loss - antenna cable  Connector(s) (Other Side) Length 1 xN-Series connector - female 6 ft Technology Type Coaxial Cable 50 Ohms Antenna cable - Connects Access Points, Routers and Radio transmitters to Antenna Network Cable Type   Antenna cable  Waterproof connectors

We have many listings for cable sets with different connector configurations.  We will also professionally replace connections as needed with high quality SMA, BNC, RP-SMA, N, RP-TNC or TNC ends in male or female for $2.99 each to customize cable for your needs.

Facts:

    Cable for CB, Ham and WiFi installs needs to be 50ohms; cheaper cable not meeting this standard or cheap mismatched connectors significantly increases signal loss.

    It is more expensive to manufacture 50ohm cable than 75ohm, so many cheaper producers tend to substitute without telling or use cable with variable dielectric thickness and copper alloys less than 95% pure for poor conductivity.

    LMR400 Coaxial cable should not be confused with others used for carrying lower frequency signals such as audio signals or Cable TV signals. TV  and Satellite type  cable is similar in that it consists of a central wire or wires surrounded by a tubular shield conductor, but it is not constructed with the precise conductor spacing needed to function efficiently for radio frequencies.

    Coaxial cable design choices affect physical size, frequency performance, attenuation, power handling capabilities, flexibility, strength and cost.  Skinny cable has less metal to conduct your signal and causes more loss. 

Cable MUST be precision manufactured with precise standard spacing between conductors to avoid significant signal loss.

    Cable that fails to meet name brand manufacturers standards is not destroyed but is sold as generic, off brand or "house brand" cable all over eBay. Just ask the seller where it's made... 

    A great primer for Cable Information is Here

   

Manufacturer Part Number	LMR400
Connector Type on Second End	N male-Connector
Connector Type on First End	N female -Connector
Product Name	Ultra Low Loss Antenna Cable
Cable Type	RF Transmission / Antenna
Cable Length	6 ft
Manufacturer	Times Microwave
Brand Name	LMR400

SHOPPING.COM has SIX stores where you can buy this cable.  OR just buy it from an EBay dealer with over 7 yrs in business and a perfect feedback score!

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FREE RETURNS!!!

Here's a deal you can't refuse.  Order the cable, take it out of the box and check it out.  IF YOU DON'T LIKE THE WAY IT WORKS or LOOKS WE WILL PAY RETURN SHIPPING!  We are so sure that this is the best, highest quality cable on EBay that if you don't like it after you check it out we will not only refund your money but pay the return shipping!  Too much attenuation or signal loss? send it back.  VSW too high? Send it back.  Black isn't your color? Send it back.  Please see the fine print!

The Fine Print:

  If you cut it up you keep it.

  Cable should be in "like new" condition, teeth marks/burns/slices etc. are not acceptable.  Please don't run it       up a tower and scrape/fray it then change your mind.  Run all tests while still coiled.

  If we have installed custom connectors we will not refund the price of the new connector we installed for you.

  If you have installed custom connectors we will not refund what you paid for them.

  You need to be able to print out the return label we will send you or let us fax one if you don't own a printer.

  Try to be as fair to us as we are to you.  As you can see this cable lists for many times what we are selling it         for.

If you can find another seller that has a 7 year track record of perfect feedback offering you a better deal then please buy from them.  They deserve it!

More Info for Folks who like to do their homework! Liberal borrowing from Wikipedia

Cheap thin cable can result in even the best antenna being worse than useless. Signal losses are frequency dependent, the losses becoming higher as the frequency increases. It is not unusual to experience 5 times as much signal loss at 6 GHz than at WiFi's 2.4 GHz.    Installing a 15Db gain antenna and running cheap antenna cable can result in cable loss of twice your antenna gain.  Don't bother buying a good antenna if you are running cheap cable. Losses can be reduced by increasing the diameter of the cable. A cable with twice the diameter will have half the signal effect resistance loss. Assuming cable quality is equal, the larger cable would halve the dB/meter loss. In designing a system, consider not only the loss in the cable, but also the loss in the connectors. Cheap connectors give you as much loss as cheap cable. On a final note, poorly made LMR600 "type" cable can have a greater signal loss than good LMR400...  (See the cable chart below.  Run the largest, best quality cable you can afford.)

This is Top Quality LMR400 50 Ohm Cable.  All common Radio Frequency (RF) devices CB, Ham, WiFi, Packet Radio, etc. are to be used with 50 Ohm cables and connectors. 75 Ohm cables and connectors are designed for low frequency signals like Video or Cable TV and are unsuitable for most all RF installations.  Each type of coaxial cable has a characteristic impedance (resistance) depending on its dimensions and construction, which is the ratio of the voltage to the current in the cable. In order to prevent reflections at the destination end of the cable from causing standing waves. The equipment "appears" electrically similar to a continuation of the cable, preventing reflections that cause signal degradation.

In high quality cable the dimensions and spacing of the conductors are uniform. Any abrupt change in the spacing of the two conductors along the cable tends to reflect radio frequency power back toward the source, causing a condition called standing waves. This acts as a bottleneck, reducing the amount and quality of the transmitted power. To hold the shield at a uniform distance from the central conductor, the space between the two is filled with a plastic dielectric designed to maintain the proper spacing between conductor and shielding to assure maximum signal transmission and lowest loss.  Manufacturers specify a minimum bend radius, to prevent kinks that would cause reflections. You should allow three inches of cable to make a 90 degree turn in your runs without causing signal loss. The connectors used with the coax must also hold the correct spacing through the body of the connector to avoid signal loss. The transmission of energy in the line occurs totally through the dielectric inside the cable between the conductors. This cable can be bent and moderately twisted without negative effects, and can be strapped to conductive supports without inducing signal interference.

LMR-400 cable is designed for outdoor applications, can be direct buried, and the outer jacket resists ultraviolet light and oxidation. There is no environmental restriction on use for indoor installations.

We also have LMR400 cable for indoor/outdoor installs certified as fire resistant as required by the Pennsylvania Bureau of Mines.  Just ask.

Cable Size & Information Chart

type	approx. impedance [ohms]	core	dielectric			overall diameter		braid	velocity factor	comments
			type	[in]	[mm]	in	mm
LMR-200	50	1.12 mm Cu	PF CF	0.116	2.95	0.195	4.95	Single	0.83	communications, 0.554 dB/meter @ 2.4 GHz
LMR-400	50	2.74 mm (Cu clad Al) ULA Cu	PF CF	0.285	7.24	0.405	10.29	double	0.85	low or ultra low loss communications, 0.223 or less dB/meter @ 2.4 GHz
LMR-600	50	4.47 mm (Cu clad Al)	PF	0.455	11.56	0.590	14.99	single	0.87	low loss communications, 0.144 dB/meter @ 2.4 GHz
LMR-900	50	6.65 mm (BC tube)	PF	0.680	17.27	0.870	22.10		0.87	low loss communications, 0.098 dB/meter @ 2.4 GHz
LMR-1200	50	8.86 mm (BC tube)	PF	0.920	23.37	1.200	30.48		0.88	low loss communications, 0.075 dB/meter @ 2.4 GHz
LMR-1700	50	13.39 mm (BC tube)	PF	1.350	34.29	1.670	42.42		0.89	low loss communications, 0.056 dB/meter @ 2.4 GHz

We can provide professionally installed PL-259/TNC/SMB/SMA, 7/16 or Just about any connector you want on one or both end of these cables.  Please ask and We'll be happy to help.

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