Magnet loop antenna calculator antennas i1wqrlinkradio. I create a two turn outer loop to get down to 160 and it works very well. Alternatively, by tuning for maximum receiver noise level. By pointing the broadside of the loop at an offending noise source, like a tv or computer monitor, the noise can be. Magnetic loop antenna calculator resource detail the.
If you make the loop much longer than 110th of a full wavelength, it turns into a different type of antenna specifically one that has both voltage and current nodes and you will start to lose your nulls and the directivity. Magnetic loop receive antennas are a great weapon in the fight against natural and manmade noise. About magnetic loop antenna calculator the resource is currently listed in in 3 categories. Magnetic loop antenna calculator resource detail the dxzone. I designed receiving loop antennas with a bandpass characteristic to cover the. Ham radio the hula loop active rx antenna kevin loughin. This software should not be used for loops having a larger circumference than. The calculators give you theoretical values, your actual construction will also affect the antenna greatly.
Making a receive loop antenna the radioreference wiki. Alternatively, you can use the loop calculator program rjeloop1. Its a light magnetic loop antenna calculator that run on ms windows, and allow. To be a magnetic loop, the loop circumfrence must be less than 0. Even though the loop used in that example was built also for transmitting, the results are the same when it comes to receiving. You start the program magnetic loop antennas calculator by clicking on the. Making the loop as large as you can without surpassing the 110th wavelength limit, will produce the largest signal. The small 3 foot diameter loop is naturally stealthy for hoa challenges and a perfect complement for vertical and small wire transmit antennas.
This is the handy tool that helped me decide what size loop to build in each case. W6lvp loops cover 2200 through 10 meters 5 khz through 30 mhz with no tuning or adjustment. The alpha loop is a 1040 meter transmitreceive magnetic loop antenna. I compared a random wire antenna strung throughout an apartment to a magnetic loop antenna.
I checked in to a local 160 meter net and 4 out of 5 stations. Works either in standard and metric units, and let you choose on material, and loop. Very close to a small loop antenna but not necessarily near the open ends of the small loop where the tuning capacitor is the magnetic field. When receiving, the oscillating magnetic field of the incoming radio wave. Magnetic loop antenna for 8020 mtrs by frank n4spp. The magnet loop antenna calculator program is used to calculate magnet. This is my 6 foot diameter magloop for 80 and 160 meters. Small transmitting loop antennas, commonly called magnetic loops or mag loops, can give surprisingly good performance when they are carefully designed. The tutorial of a diy magnetic loop antenna for the amateur radio band featuring a.
This link is listed in our web site directory since monday dec 9 20, and till today magnetic loop antenna calculator has been followed for a total of 5256 times. Receiving antennas old receiving magnetic loop antennas figure 1 old huge magnetic receiving loop antennas figure 2 connection of the reception magnetic loop to a radio receiver main since the broadcasting center was in operation, so, the equipment were in continuous work already more than thirty years. This link is listed in our web site directory since friday may 9 2008, and till today magnetic loop calculator has been followed for a total of 5642 times. A magnetic loop antenna for shortwave listening swl kr1st. Magnetic loop receive below is a view of the panadapter, notice how there is a pronounced peak where the antenna is tuned and as you deviate from that. This very easy to do with the controller software i wrote see further below.