It has a UL/NEC & CSA rating of CMP and FT6 respectively. Hence, the amount of watts that a 12 volt 30 amp charge controller can handle is 360 watts, while a 24 volts 30 amps device can handle a maximum of 720 watts. 0.405 inch L-com Microwave LMR-400 coax cable is manufactured in a flexible design and has a 50 Ohm impedance. G-line is a single conductor with cones on each end; look it up. So if you have a 400 watts power inverter, you can run your laptop with it without any tension. Any 75 ohm Wireless Application requiring an easily routed, low loss coaxial cable. For example, if you have a fairly small 800-watt microwave oven, the electrician will normally install a 20-amp circuit even though a 15-amp circuit can easily handle this appliance. Surely the answer will be no. He worked as an electronic technician and later an engineer for the IBM Corp. is a member of The Spruce Home Improvement Review Board. applications where an amplifier is not used. The diurnal cycles will cause condensation build up in the pipe that will eventually flood the pipe if a suitable drain is not provided. An electrician would install a 30-amp 240-volt circuit to serve such a water heater. Nice to be able to do a comparison and see the differences. version, it's called LMR-400 Ultra-flex. jacket, Power Handling: 1800 watts 30 MHz and less, Attenuation: 1.2 dB per 100 ft at 30 MHz and What is the best bitrate for YouTube videos? Yes is the answer here! Was looking at the LMR 400 ultraflex for about 100 ft. run. Pushing that type of wattage, however, isn't advisable in light of the 80% rule. 2015 NEW! Note: the RG numbers given are not actual labels, but are given merely for familiarity. LMR cable is a low-loss coaxial cable. Sadly, the answer is no. A low loss cable with a non-contaminating Your email address will not be published. SINCE YOU HAVE SEVERAL BENDS YOU MIGHT INSERT PULL POINTS [ A I/2" FITTING LIKE A HANDI-BOX OR SIMILAR] TO HELP MAKE THE PULL. Attenuation: 2.5 dB per 100 ft at 30 MHz and Click the links below for manufacturers data-sheets. Suitable for higher power (~1800 watts) at HF. Optimised Helium Antennas All Questions Answered! That site does not state the K1 & K2 factors, so I cannot add it to the calculator. It is worth noting, should you choose the LMR-UF as your preferred option, you can only use TC style connectors with the cable as EZ connectors are not recommended for use with the LMR-400-UF stranded centre conductor. Timothy Thiele has an associate degree in electronics and is an IBEW Local #176 Union Electrician with over 30 years of experience in residential, commercial, and industrial wiring. Thanks for taking the time to make and post. BEST OF LUCK. Strange fan/light switch wiring - what in the world am I looking at. Personally I take those figures to mean that it's OK to bend the coax to a 1 in / 25.4 mm radius during installation, but it's not OK to leave it like that; it should be left with a radius no less than 4 in / 101.6 mm. rg8 is the .400 inch stuff. Was looking at the LMR 400 ultraflex for about 100 ft. run. I was wondering if coax frequency plays a role in coax for 10 and 11 meter two way radio? On your tuning problem, running a dipole on its second harmonic (i.e., running an 80 on 40, or a 40 on 20), you are feeding two have-wave end-fed elements their voltage anti-nodes, which is a very high impedance point. I will NEVER buy that crap again. Coax question - are the "generic" versions of LMR-400 and LMR-400 Ultraflex as good as the "name brand" or is it not worth the savings? The other flavours of the cable available are: At McGill Microwave systems, we feel passionate about educating our customers on our unique products and why they are the perfect choice for most RF Microwave coaxial interconnect applications. Amateur Radio Stack Exchange is a question and answer site for amateur radio enthusiasts. This is an excellent half way between the standard LMR and LMR UltraFlex. How Many Watts Can A 240V Outlet Handle? a variety of coax cable types, use the Times Microwave Systems The superior quality materials and manufacturing processes are what engineers in the superb product performance and reliability. The load can be measured in either amp or watts, and it is fairly easy to calculate based on the information printed on the appliance motor specification label. Attenuation & Power All of this involves four 90 degree turns. So, somewhere around an odd-eighth-wave multiple of the dipoles fundamental frequency. vy73, wa6sze, Your email address will not be published. It may not display this or other websites correctly. Please dont ask me to add another coax! BRAND NEW LMR 400 ULTRAFLEX CABLE 11. Power Handling: 2100 watts 30 MHz and less, Attenuation: 0.7 dB per 100 ft at 30 MHz and Adjusting the length only changes the reactance, not the resistance, at the feed-point of a dipole. Note: Set Line Length 100 here to use the ERP Calc. Why is sending so few tanks to Ukraine considered significant? We're sorry, there were no products found. Great tool, but please dont cheat yourself. 9913 and LMR-400 are popular "low-loss" RG-8 types. I would think that "bend radius: repeated" means to bend and rebend the coax multiple times. So with a 400 watts inverter, you can easily run your bulbs and light. In high voltage circuits (220V-240V) wires can carry more watts. cant a balun be made for 23cm ? Here are some numbers via the Times Microwave Coaxial Cable Loss Calculator for 100 feet of cable: Cable Loss (dB), 100 feet To put this into perspective, if you're running 100 feet of RG-8 or RG-213 and are thinking of upgrading to LMR-400 because of the loss you're incurring, think again, especially if you mainly operate on the HF bands. Its likely that even at resonance the FP resistance is low (way under 50 ohms) on your shorter dipoles due to interaction with the longer ones. 9913. For example, it can run a small television, refrigerator, tablets, laptop, power tools, cameras, DVD player, etc. Suitable for medium power (~350 watts), HF and Lo-VHF. The width of the line needs to be <1% of the wavelength. This cable is where it all began. Better Flexing Abilities come at a cost of 15% higher attenuation than the LMR-400 however! Ladder-line-fed non-resonant dipoles may, at various frequencies, have a feed-point impedance anywhere between 50 and 5,000 ohms, with the same efficiency. If you have a 400 watts power inverter, then it will convert the power of the battery into 120-V-AC. Why does secondary surveillance radar use a different antenna design than primary radar? Antenna efficiency is not related to 50 ohms, or resonance. Stick with RG-213/U and you will never have that problem. A large microwave oven with a built-in vent fan and light fixture can easily demand 1,200 to 1,500 watts of power, and an electrician wiring a dedicated circuit for this appliance would likely install a 20-amp circuit that provides 2,400 watts of available power. Because of its solid Not really a big deal. also, honestly, what's up with the caps lock? Is there a difference in loss when one compares the old 300 ohm twin lead compared to the new foam insulated 300 ohm twin lead? And wirh times microwave, andrew, etc your not just paying for the name. Todays lights are consuming less energy because of their high energy-saving capabilities. Yes, window line will be better, and open-wire ladder line will be best. I am sure you will get many good suggestions for your situation. Antenna efficiency is a separate matter. 13. I work in the commercial 2way business with Motorola, and I have found a fairly significant difference in connectors in regard to losses. That is also why you need to know when to upgrade your service panel. You can look for an inverter that has Remote Control features. If you need the actual loss of your cable, use a VNA and look up the procedure for measuring coax loss. Any comments on a recent QST article regarding 450 ladder line in 3/4 inch foam pipe insulation in order to run on the ground? Feed-line losses are resistive and dielectric heating. Supposedly RG8x loses 30% at 30 mhz and 100feet. LMR-FR is UL/NEC & CSA rated CMR and FT4 respectively, which meets FAA FAR25 requirements and is MSHA-P for mining applications. Please see the Ladder Line pages, and the 80-meter Doublet article, on this site. Military spec cable should be the same no matter the manufacturer. This 50 Ohm 0.405 inch diameter and low loss flexible coax cable is built with a double shield count and RF shielding of 90 dB. Answer: It depends on the voltage and installation class. 25-amp 120-volt circuit: 25 amps x 120 volts = 3,000 watts. The best part of a ceiling fan is it consumes very less energy than an air conditioner. I have had to replace my Times Microwave LMR-400 3 times just this year. Get daily tips & tricks to help make your best home, Calculating Electrical Load Capacity for a Home, What Happens When an Electrical Circuit Overloads, Electrical Circuit Requirements for Kitchens, Sizing Electrical Wire for Underground Circuit Cable, How to Install a 240-Volt Electric Baseboard Heater, The Electrical Circuits Needed When Remodeling a Kitchen, How to Determine Your Electrical Service Amps, Inside Your Main Electrical Service Panel, Amperage and Wire Gauge Chart: What Size You Need. LMR 400 vs. 9913, Flexible varieties? Got some RG8x and wanted to find out how my RG8x I just bought compared to what its rated at. RG8 is a type of coaxial cable suitable for use in carrying radio transmission signals. To get this answer, pay your full attention to this section. It gives you super freedom & the ability to charge up your house/office equipment & other personal items of your vehicle. A power inverter is an electronic device that converts the direct current to an alternating current. How dry does a rock/metal vocal have to be during recording? The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. A 2 inch sweep has a >9 inch radius so it mitigates this effect. This coax cable provides excellent performance for high power HF needs or VHF/UHF applications. The tool on this page calculates feed-line losses (dielectric heating) as a result of voltage standing waves, those high-voltage anti-nodes that increase dielectric stress and therefore, heating. This economically priced coax cable is In order to route my antenna feedlines out of my house, I have to pass through a wall, into the garage and through another wall. My twin lead is 50 ft and I had a problem tuning 20 meters. July 06, 2004 explore the world through the prism of knowledge. Generally speaking, a full-sized 20 cubic-foot refrigerator can require up to 1200 watts to start up and then 500 watts to keep running. I am wondering what the possible issues would be with using 2 inch electrical conduit with a couple of conduit bodies (small housing with a cover to help pull wire through an angle). CAUTION: YOU MAY HAVE PURCHASED FAKE LMR-400 CABLE AND IF SO, IT WILL REDUCE YOUR HNT EARNINGS! Sometimes life becomes unbearable without it. There are other companies that make LMR 400 equivalents at a much lower price. Maybe I can do some medical experiments or something with it. LMR-400 is manufactured by Times Microwave Systems USA, they are known globally as technology market leader of Ultra High performance Coaxial cables for all Commercial applications as well as Military fighter jet aircraft, Helicopters, UAVS, Ships, Submarines, Drones and Spaceflight applications. He later withdrew the code in favor of more accurate formulae. Without knowing your installation limitations, instead of pull boxes try to use sweep elbows where the pipe turns. The electrical performance remains identical to LMR-400. for high power HF needs or VHF/UHF applications. How were Acorn Archimedes used outside education? The LMR-400 actually has a diameter of 0.405 or 10.29 mm though it is classified as a 400, similar to most coaxial cables in its class such as the RG-8 types, all of which measure.400. The specification for installation bend radius is 1 in / 25.4 mm, but the specification for "bend radius: repeated" is 4 in / 101.6 mm. See KV5Rs Coax and Ladder-Line and ERP Calculator! The Wilson400 cable is an LMR400 spec cable. Can I (an EU citizen) live in the US if I marry a US citizen? McGill Microwave Systems has seen a sharp rise in demand for the LMR-LW cable in the last year. really adds up, huh Its the best one. FEEDLINE: Anyone use the new LMR 400 or LMR 600 Series lines yet? A relationship principle known as Ohm's Law states that amperage (A) x volts (V) = watts (W). I am wondering what the possible issues would be with using 2 inch electrical conduit with a couple of conduit bodies (small housing with a cover to help pull wire through an angle). FEEDLINE: Anyone use the new LMR 400 or LMR 600 Series lines yet? Nice page first of all! It has a VF of 91-95%. In modern homes, it is normally only general lighting circuits that are still wired as 15-amp circuits. Very informative usefull tool when setting up a gateway calculating losses to get NOV will recomend to anyone doing same. The flexible types (9913F and LMR-400UF) are preferred, particularly for rotatable antennas.