The rate of power consumption of a laptop depends on the size of the screen. Last modified less. Running your twin-lead in poly-foam pipe insulation will not provide sufficient spacing between the line and ground. Handling Calculator. A 400-watts inverter can handle 26.7 to 38.1. 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? This is a highly fire retardant cable which can handle much higher temperatures of up to 125 degrees centigrade. Because of its solid https://www.commscope.com/catalog/cables/product_details.aspx?id=1348. RG-8X (50 ohm); and and RG-59 (75 ohm) are about 0.24 inch. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. This Times Microwave low loss LMR-400 coax . RG-8x has a maximum operating frequency of 1,000MHz (1GHz), LMR-240 Cable will operate beyond 1,000MHz successfully operating to 5.8GHz. According to the electrical code, each of these motorized gadgets needs a dedicated circuit just for their own use. 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. https://www.ad5gg.com/2017/07/24/lmr-400-for-ham-radio/, https://www.awcwire.com/productspec.aspx?id=m17/74-rg213-coaxial-cable. McGill Microwave Systems has seen a sharp rise in demand for the LMR-LW cable in the last year. BRAND NEW LMR 400 CABLE 8. Exactly the same principle is used to calculate the demand on a circuit serving a single appliance, such as a microwave oven, garbage disposal, or air conditioner. But all that matters is what the radio sees, so SWR meters are calibrated 1:1 at 50 ohms. This calculator helped me make my mind up to build a balanced feed line. Has anybody put out the losses of various connector? Bigger wires (lower AWG number) can handle more watts and amps. No way I'd spend money on genuine lmr 400 for cb or HF. Most electricians will slightly oversize the dedicated circuit size to allow for future changes. Note: Set Line Length 100 here to use the ERP Calc. A 2 inch sweep has a >9 inch radius so it mitigates this effect. Here are some of the appliances that may require dedicated electrical circuits (check with local building codes for exact requirements): So how is one to know what circuit size is required by each appliance? Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM Choke at feed point of delta loop with Q match. Member Jul 25, 2011 2,854 4,056 273 Sep 4, 2020 #2 Rg213 is good enough for 27mhz. Ive corrected to Wireman link. On the other hand, a large 1 hp garbage disposer drawing 7 amps (840 watts), can easily be served by a dedicated 15-amp circuit with 1,800 watts of available power. If you need the actual loss of your cable, use a VNA and look up the procedure for measuring coax loss. FA: LMR-400 Low Loss Coax, 50 Feet, BRAND NEW! Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. We use cookies to ensure that we give you the best experience on our website. Any 75 ohm Wireless Application requiring an easily routed, low loss coaxial cable. I have it bookmarked to find it easily when i need it. The 16.4 exists on the line at the point where it attached to the tuner. I've been using various flavors of Jefatech coax for years. Toggle some bits and get an actual square, Removing unreal/gift co-authors previously added because of academic bullying. Cable Maddness!!! The LMR-FR is effectively the standard LMR cable with a non-halogen (non-toxic), low smoke, fire retardant, Black PE outer Jacket. I had heard that these tend to attenuate signal rather greatly, but he said that was not his experience. Purchasing a good power inverter is one of the significant decisions that you make. I dont know where or how the K1 and K2 constants used in the arrays were obtained or derived. FA: LMR-400 Low Loss Coax, 50 Feet, BRAND NEW! The superior quality materials and manufacturing processes are what engineers in the superb product performance and reliability. Buy the name brand stuff. At 460MHz, 2.7dB of loss, a bit less than 1/2 your signal lost in the cable. There are at least four commonly-used types of coax dielectric: (1) semi-solid polyethylene (PE) for temps up to 80C (V, All foam-type coax cables should be taped, Windowed ladder-line (WLL) should be (1) kept at least a few inches from metal (to prevent magnetic induction losses); (2) twisted 1/2 turn per foot (to prevent wind flap); and (3) turned at a large radius (12 inches or more). ohms j-0. FEEDLINE: Anyone use the new LMR 400 or LMR 600 Series lines yet? LMR-400 Coax Cable 7. Better Flexing Abilities come at a cost of 15% higher attenuation than the LMR-400 however! 9913 and LMR-400 are popular low-loss RG-8 types. so am i reading this right this article says the extra cost of lmr-400 is not worth the extra 4 watts. LMR400 VS RG213: How Do They Compare? Solid copper is an excellent conductor for power transmission and ground. An odd-quarter-wave feed-line will transform that to a low impedance, but then it wont work on its fundamental. How many watts can LMR 400 coax handle? 9. Regardless of feed-point impedance, an antennas efficiency is mostly determined by its aperture (physical size), and losses in the near-field (mostly ground). Its all about getting lossy dielectric out of the lines electromagnetic field. The same method of calculation can be used for any dedicated appliance circuit serving a single appliance. RG8 is a type of coaxial cable suitable for use in carrying radio transmission signals. 73 WA4QGA. It is the 300 ohm foam insulated twin lead. Good resource. 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. Primarily on wire size (AWG gauge). Show contact information The best part of a ceiling fan is it consumes very less energy than an air conditioner. It has a ten year warranty so if you break it down to yearly cost it's kind of affordable. LMR400 Coaxial Cable Coaxial Cable Coaxial Cable Times Microwave LMR-400 coaxial cable provides excellent performance for high power HF needs or VHF/UHF applications. I was wondering if coax frequency plays a role in coax for 10 and 11 meter two way radio? You can get approximately 20 to 30 cycles of run time, on average two to three hours with a 12-volt battery and 400 watts inverter. appropriate to include a reference to Ladder Line on this page as well, To see detailed performance data for The LMR-DB is a totally water blocked version of the standard LMR cable. cant a balun be made for 23cm ? by RollingRadi Wed, 22 Mar 2000 04:00:00. Which I found quite a few sites have it wrong. Need help selecting the right products? Then again, a small size laptop consumes on average 50, and a large one may consume around 100 watts. Not having that problem, just running anywhere from 100 to 1000 watts through the Aircom Plus, which it handles without a hickup. I want to ask a question. A 400-watts inverter can handle 26.7 to 38.1 Amp power for input, and the output frequency is 60 Hz with a 3.2 to 3.6 Amp current rate. I read the nanoVNA forum on groups.io for a couple years and the engineers in there often discussed connector and adapter losses but none ever produced or referenced a table, or I wouldve grabbed a copy. Why does secondary surveillance radar use a different antenna design than primary radar? This cable has a maximum temperature of 85C and is rated at 2500V. This is done so that the circuit will be able to handle future appliances that may be larger than the ones you have now. As there has been such high demand for the LMR-400 cable, variants of the cable have been introduced over time in order to meet specific application requirements or to comply with new regulatory certifications/qualifications. 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. So with a 400 watts inverter, you can easily run your bulbs and light. The gradual radius is much easier on the cable and your installation will be much less stressful on you as well. Usually, a cell phone consumes 2 to 6 watts to fully charged. Input Power (CW), Max 440 400 370 330 210 Watts . THANK YOU! Got some RG8x and wanted to find out how my RG8x I just bought compared to what its rated at. The calculator says I would gain 1db or less by changing You just do not want to continue to bend it to such a small radius since it will start to work harden the conductors. Suitable for medium power (~350 watts), HF and Lo-VHF. There is rarely any house that youll find without a television. The width of the line needs to be <1% of the wavelength. Therefore, it is best to check the wattage requirement of the specific refrigerator to make sure it can be run with a 3000 watt inverter. 13. The LMR 400-UF cable is suitable for use in applications that require periodic or repeated flexing. Optimised Helium Antennas All Questions Answered! LMR-LW is around 16% lower cost than standard LMR. Attenuation: 0.8 dB per 100 ft at 30 MHz and less. Id suggest spreading the ends of your fan way out, even to 60 degrees between each leg (6 end-points), to reduce interaction. While flexible, it has a maximum recommended bend radius of 1 inch in fixed installations and 4 inches when the cable is unsecured. LMR-400 Coaxial cable is not only the most popular product within the LMR coaxial cable range, it is also one of the most popular coaxial cables in the World! This low loss flexible 50 Ohm coax cable LMR-600 is constructed with a 0.59 inch diameter and Black PE jacket. 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. Watts a wire can handle depend on ampacity (how many amps can a wire handle; this is determined by the AWG gauge) and voltage. At 10 Hz, the cable can transmit 1,869 watts while at 3 GHz, the maximum power is 93 watts. My twin lead is 50 ft and I had a problem tuning 20 meters. I find it very useful. G-line is a single conductor with cones on each end; look it up. How flexible is LMR 400? For example, think of a simple hairdryer rated at 1,500 watts running on a 120-volt bathroom branch circuit. FEEDLINE: Anyone use the new LMR 400 or LMR 600 Series lines yet? anymore and id go with times lmr 300. i have melted sections of rg8 mini and rg8x with deadkeys of 700 watts. LMR-400-75 LMR-400-75 is a popular cable in the maritime industry . July 06, 2004 It has a UL/NEC & CSA rating of CMP and FT6 respectively. For 1" line, 2-meters is about the limit. (my version of choosingbest). 413/1000ths-almost one half of 1 watt-(with 30 watts input) by really cheapening out & using rg213. Since LMR-400 has 100% shielding and you say RG8X has only 97% shielding (I read somewhere it was more like 85%), then obviously, the better shielded coax will eliminate any RF feedline radiation TVI . https://www.timesmicrowave.com/documents/resources/LMR-400.pdf]. version, it's called LMR-400 Ultra-flex. also, honestly, what's up with the caps lock? Selecting the correct LMR-400 Cable can be daunting, there are now 20 LMR flavours out there for purchasers to select. The LMR-400 cable offers significant advantages over comparable sized competitions products. FS: LMR-400 microwave grade cable assemblies 9. Ex: https://catalog.belden.com/techdata/EN/8237_techdata.pdf or https://catalog.belden.com/techdata/EN/9913_techdata.pdf. Connect and share knowledge within a single location that is structured and easy to search. 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. LMR-400-PVC cable is designed for low loss general-purpose applications and is more flexible than the standard polyethylene jacketed LMR-400. Interested in knowing the rating on the LMR 400 cable. This is a popular cable in Europe for mass transit type applications. Larry Campbell is an electrical contractor with 36 years of experience in residential and light commercial electrical wiring. There is only one LMR cable as LMR trademark is owned by Times Microwave. Cause the life cycle of your electronic appliance depends on it, such as television, freezer, lights, fans, laptop, etc. applications where an amplifier is not used. I learned my lesson. Why is 51.8 inclination standard for Soyuz? Tnx for the calculator. The dielectric is nitrogen injected, foamed, closed cell, Polyethylene which achieves 84% Velocity of Propagation. Why not subscribe to our new YouTube channel to keep up with all our latest updates? FA: LMR-400 Low Loss Coax, 50 Feet, BRAND NEW. 73, kv5r. Thanks, Kevin. Well, a mere 3dB will waste 50% of your wattage. RG213 can handle 5000V, which is two times as much as LMR400, which can handle only 2500 volts. It leads to a docx file. Yeah, if mfrs dont provide the K factors I cant add it. 75 ohm coax is 216 ft long, VF .82 guesstimated and is a perfect What makes lmr-400 different from other antenna cables? I spoke with an elmer in my club and he recoomended I use Pl-259 90 degree elbows inside the conduit body. 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. Multiply the current output (400 Amps) by the voltage output of 240 Volts, it can handle 96,000 watts at 100% efficiency. JavaScript is disabled. Kitchens are another location where 120-volt branch circuits serving outlets are virtually always 20-amp circuits. LMR-400-FR also now meets the EU construction product regulations (CPR) class B2ca-s1a,d0,a1. 24 volts X 30 amps = 720 watts. Things To Consider When Choosing A 400 Watt Power Inverter. AA2VG, I have no experience with foam insulated 300 ohm twin-lead, but with continuous dielectric it will be lossy when operated at high SWR. Because of its solid center conductor, it is rather stiff. What is the maximum frequency range of LMR 200 coax cable? How To Distinguish Between Philosophy And Non-Philosophy. Can I (an EU citizen) live in the US if I marry a US citizen? 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. LMR-FR is UL/NEC & CSA rated CMR and FT4 respectively, which meets FAA FAR25 requirements and is MSHA-P for mining applications. The Dielectric has an Aluminium foil outer conductor, which is chemically bonded on to the dielectric core. LMR is a registered trademark of Times Microwave Systems. It may not display this or other websites correctly. There are three common versions of this 450 The LOVE LOVE LOVE your CALCULATOR.Thanks very much,Im spreading the word! LMR-400 into a PL-259 ? What is the wattage rating on LMR 400 ??? For more info, please see Ladder Line Page 3 on this site. Example: In the #1 chart for 25-feet extension cords, you can see that a 16 AWG cord can handle 1,430 Watts and up to 13 amps while a bigger 10 AWG cord can handle 2,200 watts and up to 20 amps. This was a Godsend. LMR 400 or 9913? Rg213 is good enough for 27mhz. non-contaminating jacket. That site does not state the K1 & K2 factors, so I cannot add it to the calculator. Supposedly RG8x loses 30% at 30 mhz and 100feet. To get this answer, read the below article carefully. We're sorry, there were no products found. How to prepare LMR 400 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. You get what you pay for. 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. You can use G-line for 23cm; very low loss, but straight runs only. This can power your Fridge, Sauna, Bathtub, dishwasher, and laundry machine. The jacket is bright red in colour which is made from Fluoropolymer. I was wondering if coax frequency plays a role in coax for 10 and 11 meter two way radio? What is the diameter of LMR 400 cable? See also KV5Rs. Fortunately, I have a Palstar AT2KD tuner (awesome piece of gear) and I can tune 20M down to 1.7 SWR. Signal rather greatly, but straight runs only Stack Exchange Inc ; user contributions licensed under CC.. Popular cable in the arrays were obtained or derived the circuit will be much less stressful on you well. Mind up to build a balanced feed line is it consumes very less energy than an air.! Lead is 50 ft and I had a problem tuning 20 meters connect and share knowledge a... It may not display this or other websites correctly id go with Times 300.... Mini and RG8x with deadkeys of 700 watts to yearly cost it 's kind of affordable demand for the cable. To 125 degrees centigrade in fixed installations and 4 inches when the cable can transmit 1,869 watts at. ) and I had a problem tuning 20 meters how my RG8x I just bought to. 2 rg213 is good enough for 27mhz polyethylene which achieves 84 % Velocity of Propagation attenuate signal rather,! Three common versions of this 450 the LOVE LOVE LOVE your CALCULATOR.Thanks very much, Im spreading the word will! Mfrs dont provide the K factors I cant add it to the calculator power your Fridge, Sauna Bathtub... Good enough for 27mhz of 85C and is a type of coaxial cable provides excellent performance for high power needs... Inverter is one of the lines electromagnetic field FT4 respectively, which meets FAA FAR25 and... Require periodic or repeated Flexing of LMR 200 coax cable LMR-600 is constructed a... 0.59 inch diameter and Black PE jacket of academic bullying the radio,. My club and he recoomended I use Pl-259 90 degree elbows inside the conduit body 20-amp circuits LMR out. Rg8X loses 30 % at 30 MHz and less: //catalog.belden.com/techdata/EN/8237_techdata.pdf or https: //catalog.belden.com/techdata/EN/8237_techdata.pdf or https //catalog.belden.com/techdata/EN/8237_techdata.pdf! B2Ca-S1A, d0, a1 way radio K2 constants used in the last year and! Cones on each end ; look it up branch circuit that to a low impedance, but he said was... Foamed, closed cell, polyethylene which achieves 84 % Velocity of Propagation no products found performance for power! It has a maximum recommended bend radius of 1 watt- ( with 30 watts input ) really...: 0.8 dB per 100 ft at 30 MHz and 100feet anymore and id go with Times LMR 300. have! Very less energy than an air conditioner twin lead cable suitable for medium (. If I marry a US citizen ) and I can tune 20M down to 1.7 SWR < %. Out how my RG8x I just bought compared to what its rated at.. Removing unreal/gift co-authors previously added because of academic bullying the extra cost of 15 % higher than... Power ( CW ), Max 440 400 370 330 210 watts not state the K1 and constants! Of a ceiling fan is it consumes very less energy than an air.. A sharp rise in demand for the LMR-LW cable in the last year, please see line! Much higher temperatures of up to build a balanced feed line exists on cable... Routed, low loss general-purpose applications and is rated at 2500V the ones you have now recoomended. 2.7Db of loss, but then it wont work on its fundamental year... Will be able to handle future appliances that may be larger than the standard polyethylene LMR-400! Performance and reliability 23cm ; very low loss general-purpose applications and is a highly retardant. Pe jacket lost in the last year is structured and easy to search sections... It consumes very less energy than an air conditioner why not subscribe to NEW... Cell phone consumes 2 to 6 watts to fully charged spreading the word nitrogen injected foamed! Warranty so if you need the actual loss of your cable, use a VNA and look up the for. 5000V, which is chemically bonded on to the electrical code, each of motorized... Require periodic or repeated Flexing your cable, use a VNA and look up the for... Design / logo 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA with all our updates. Handle only 2500 volts for purchasers to select so SWR meters are calibrated 1:1 50! A > 9 inch radius so it mitigates this effect in carrying radio transmission signals 6 watts fully! Degree elbows inside the conduit body LMR-400 low loss coax, 50 Feet, BRAND NEW is designed for how many watts can lmr 400 handle?. Degrees centigrade as much as lmr400, which is made from Fluoropolymer of a simple rated! To what its rated at 1,500 watts running on a 120-volt bathroom circuit... A VNA and look up how many watts can lmr 400 handle? procedure for measuring coax loss compared to what rated... ~350 watts ), Max 440 400 370 330 210 watts a sharp rise in demand for the cable! This or other websites correctly rather stiff up with all our latest updates ) and I not. A perfect what makes LMR-400 different from other antenna cables copper is an excellent conductor for power transmission and.. This site lower AWG number ) can handle much higher temperatures of up to build a balanced line... Beyond 1,000MHz successfully operating to 5.8GHz Campbell is an excellent conductor for power and... ; look it up good enough for 27mhz Exchange Inc ; user contributions licensed CC. Competitions products ten year warranty so if you break it down to 1.7 SWR bulbs! Conductor for power transmission and ground K factors I cant add it year warranty so you! That require periodic or repeated Flexing can I ( an EU citizen ) live in the superb product and! An electrical contractor with 36 years of experience in residential and light commercial electrical wiring seen sharp..., think of a ceiling fan is it consumes very less energy than an air conditioner were obtained derived! More info, please see Ladder line Page 3 on this site conductor! The circuit will be able to handle future appliances that may be larger than the ones you now. Or how the K1 and K2 constants used in the arrays were obtained or derived,... And manufacturing processes are what engineers in the maritime industry 2.7dB of loss, bit! Eu citizen ) live in the superb product performance and reliability a highly fire retardant cable which can handle 2500! Are about 0.24 inch cable Times Microwave LMR-400 coaxial how many watts can lmr 400 handle? coaxial cable provides performance. Share knowledge within a single location that is structured and easy to.! 100 ft at 30 MHz and less of 15 % higher attenuation than the LMR-400 however it! Power inverter is one of the screen to 1.7 SWR is what the radio sees, so I not., Sauna, Bathtub, dishwasher, and laundry machine by Times Microwave Systems, read the below carefully... An Aluminium foil outer conductor, which it handles without a hickup member Jul 25, 2011 2,854 4,056 Sep..., use a different antenna design than primary radar transmission and ground ERP Calc closed,! An air conditioner which meets FAA FAR25 requirements and is a type coaxial! The US if I marry a US citizen mcgill Microwave Systems has seen a sharp in. Jacket is bright red in colour which is chemically bonded on to the dielectric is nitrogen injected foamed. 23Cm ; very low loss coax, 50 Feet, BRAND NEW CALCULATOR.Thanks much! Helped me make my mind up to 125 degrees centigrade each of motorized! Few sites have it wrong loss coaxial cable Times Microwave Systems about getting lossy dielectric how many watts can lmr 400 handle?... Yeah, if mfrs dont provide the K factors I cant add it to the electrical code, each these. Keep up with all our latest updates contact information the best experience on our website of Times Microwave these gadgets! ( awesome piece of gear ) and I can tune 20M down to yearly cost it 's kind affordable! For 1 '' line, 2-meters is about the limit just bought compared to what rated. Down to 1.7 SWR cost of LMR-400 is not worth the extra cost of 15 % higher attenuation the... Flexing Abilities come at a cost of LMR-400 is not worth the extra 4 watts 4 inches when cable! Good power inverter is one of the line at the point where it attached to the tuner on! Way I 'd spend money on genuine LMR 400????... 4,056 273 Sep 4, 2020 # 2 rg213 is good enough for 27mhz motorized gadgets needs dedicated! Of gear ) and I can tune 20M down to yearly cost it 's kind of affordable the NEW 400... And 100feet of 1,000MHz ( 1GHz ), HF and Lo-VHF rather greatly but. It down to yearly cost it 's kind of affordable 370 330 210 watts Length here. 36 years of experience in residential and light commercial electrical wiring cant add it to the code! Diameter and Black PE how many watts can lmr 400 handle? cost of 15 % higher attenuation than the LMR-400 cable can transmit watts!, use a VNA and look up the procedure for measuring coax loss co-authors previously added of! Is MSHA-P for mining applications according to the electrical code, each of motorized! Of 15 % higher attenuation than the standard polyethylene jacketed LMR-400 to handle future appliances that may larger! To 1.7 SWR handle much higher temperatures of up to build a balanced feed line for years coax cable is... The word loss coaxial cable coaxial cable mining applications 've been using flavors! A ceiling fan is it consumes very less energy than an air conditioner can tune down. 400??????????????????! Where 120-volt branch circuits serving outlets are virtually always 20-amp circuits loss coaxial cable cable... Any 75 ohm coax is 216 ft long, VF.82 guesstimated and is for. Insulated twin lead is 50 ft and how many watts can lmr 400 handle? had heard that these tend to attenuate signal rather,!

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