Ultra Low Loss Cable for CB, Ham, WiFi 2.4GHz and 0-6GHzAntenna Connections N Male to RP-SMA Male LMR-400

Buy Genuine US Made Cable Assemblies Here!

Cheap Cable Hurts! 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!

U.S. Made LMR-400 Coaxial cable should not be confused with the imitations sold calling themselves LMR400 in most eBay listings. There ARE other quality coax producers out there other than Times Microwave. We sell a couple ourselves, but please - if you don't buy here do your homework. Certain Chinese plants make cable for a large number of resellers and as copper prices go up, the quality of the alloy used tends to go down to maintain a price point.

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.

LMR-400 Top exterior size same as RG-8/RG213

LMR-240 Middle exterior size same as RG-8x

LMR-195 Bottom exterior size same as RG-58

LMR-400 Outside

RG-58 Inside

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

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. We have LMR-400 75 ohm for antenna matching if needed.

Signal losses are frequency dependent! 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.)

Buy Genuine US Made Cable Assemblies Here!

LINKS : Other Coaxial Cable Connector Information and picture sites

RF Industries Connector Database

TESSCO - Where we buy our connectors & cable

Cambridge RF Connector Types

Good Connectors from Taiwan

Automotive Connectors

Linksys Router Antenna Connectors

Crimp Connector Install Instructions

The DXZone: ham-radio, shortwave and cb-radio guide

W8MC's Ham Links to Projects & Info

Sagemaidens Connector Info Page

Times Microwave - Connector Pics and Install instructions (we use these also)

MAXGAIN PL-259 Soldering instructions

DELTA Electronics RF Connectors

Additional RF Connectors

Netgear Routers Extension Connectors

UHF Connector Install Instructions

HamRad - Amateur Radio Resource

Amphenol Connectors Information

Kings Radio Fequency Connectors

TYCO AMP Connectors - They make a good UHF Crimp

ITT Canon Coaxial Connectors

D-Link Router Connectors

Cisco Antenna Connectors

N Connector Install Instructions

RF Cafe - RF, Microwave, Wireless, Cellular, Radar, Satellite, & Analog Engineering