MPD Digital I LMR400 Times Microwave Coaxial Cable I PL259 Male to PL259 Male UHF Connectors I Low Loss RF Coaxial Cable I CB, Ham Radio, Transmitters, Antenna I 1.5ft

Used for my ham antenna. Great quality, seems very durable.

A well made coax cable

Thick cable and high quality

Clean rf power shield

I've had this cable for 2 months now, and have connected and disconnected it multiple times. There have been no issues. Yeah, LMR-400 is a little stiff and a little expensive, but it is 'the good stuff' especially if you are working at VHF of UHF frequencies.This cable can make some tight-ish turns, but it's a little too stiff to wind tightly a toroidal ferrite choke. Otherwise it's great for just about everything. Consider LMR-400 ultra-flex or MPD-400 super-flex if you need some more flexibility. Get a short piece of LMR-240 ultra-flex if you need to make tight winds on a ferrite choke.

Great mid-priced cable for VHF, UHF, and microwave applications. LMR-400 exhibits extremely low loss at higher frequencies for 50-75' runs, but I'd be looking at a higher spec'd cable like LMR-600 if I needed more length. LMR-400's conductor is solid and thus very stiff, and unsuitable for tight bends, very short jumpers, rotor loops, etc (check out LMR-400UF if you need the same specs with more flexibility). However, I had no problems whatsoever routing this along the baseboards, including a few 90º turns, and tacking the cable down with an insulated staple gun—without the staple, the stiff cable would've popped right up.I did have a serious QC problem with the first cable I received. My VSWR suddenly become so bad that my transceiver backed the power down to 10%. Thankfully my modern Icom has the logic to do this, and the radio suffered no damage. I traced the cable to my 2m beam, and when I began to unscrew the shield from the antenna's SO-259, the entire cable fell to the ground with the connector still in place. MPD uses some sort of crimping tool to attach the PL-259 connector to LMR-400 shield. This is NOT the same system they use on other cables (which I own a number of, and have never had a problem with). The PL-259's center pin solder joint failed at the same time that the crimped section broke free, leaving the cable held in place by friction. Not cool.In any case, I received a replacement cable via same-day shipping at no cost. I'm going to chalk up the problem I experienced to a fluke, and keep a careful eye on the MPD LMR-400 cables I have in production. Based on my overall experience with MPD and their products, they're still my cable vendor of choice.

I replaced the cable on my brother's marine radio this year with LMR-400. While it's stiff, that really doesn't matter on a boat. I ended up cutting six feet off of the cheap cable that came with his VHF marine antenna. I soldered on a nice, new PL-259 for the remaining length, which will allow him to swap out his antenna more easily in the future and dramatically reduce the cable loss in his transmission line.Cable losses increase with cable length and with frequency. A cable that works fine for CB radio, for example, probably will show significant losses on marine VHF or 2 meter ham frequencies. Cheaper cable not only conducts worse at higher frequencies; it also allows your signal to radiate away before it reaches the antenna, and allows electrical noise in that the tuned antenna would reject. For UHF (70cm/440 MHz) ham frequencies, you are simply not smart to use cheap coax. The losses are relatively large, even at short lengths. Use LMR-400 as much as you can, and a short piece of more flexible RG-8X to your radio.Considering how long coax lasts, and the relatively small difference in price between the cheap stuff and good stuff, it just makes sense to buy LMR-400 even for lower frequency use. Unless you really need flexible cable throughout the run, you can always patch a short piece of RG-X on either end. Don't blame your antenna or radio for poor performance when you cheap out on the cable.When you get this, uncoil it carefully and let it sit *straightened out* overnight at least. Do *not* bend it back and forth repeatedly. It will not "loosen up" by doing that, and you will probably break the centre conductor and ruin your new cable. If it's installed outdoors, use tie wrap to hold it so that the wind doesn't keep endlessly flexing it. You can bend it, but don't continue to bend it. Try taking a metal clothes hanger and bend it back and forth in the same place repeatedly. It will break in about a minute or two. That's the stiff centre conductor on your coaxial cable, only it isn't even that strong.

They make a good cable, but if you're looking to put this in a confined space you should get the ultraflex. I forgot how rigid LMR-400 is.