It is currently disabled in your browser! Please (re-)enable it for full functionality. Magnetic loop stepper motor controller yagi ham radio PAØKV Power supply EP-925. Magnetic Loop - Software September 2015 The Loop is working fine, but two things are bothering me. 1- The loop was calculated to have a range from 160 to 40 meter.
Unfortunately the loop can't be tuned to 40m. Magnetic loop stepper motor controller yagi ham radio PAØKV Power supply EP-925. Magnetic Loop - Part 2 Perfect SWR when the loop is tuned.(160m) Finished you think?
Well, not quite. The weight of the vacuum cap with mounting plate, motor drive, etc. was too much for this Y-construction. The cap-assembly + enclosure needed support. Busy day today... may 29, 2009.... Creating the +-joint was easy using a piece of Trespa and bending some aluminum strip. Cross section of horizontal & vertical pole. The new assembly.. The vacuum cap has to be 'all weather proof' ... ... here the 160 mm PVC enclosure with glued PVC support to fit on the epoxy tube. The wires for cap-motor and slide-pot meter are lead through the vertical tube of the +-joint. Another thing was keeping my mind busy. How to mount the cap-assembly into its enclosure without drilling holes in it? To be continued... 11 june 2009 .. This is the idea... turning the cable-tensioner will push the doorstop upwards and the base-plate downwards. Okay, let's put it up... Final position. May 2013. Magnetic loop stepper motor controller yagi ham radio PAØKV Power supply EP-925.
Small Transmitting Loop Project. Matt Roberts — matt-at-kk5jy-dot-net Updated: 2021-01-19 Introduction Of the many different antenna projects I have built for HF, the most interesting and rewarding project was the small transmitting loop.
After consulting many of the available Internet sources, and by combining ideas, I was able to assemble an antenna that performed well, even under poor band conditions. The Cycloid Dipole at the WA7X Beacon. The WA7X Beacon The Cycloid Dipole Note: If you hear the 6 meter beacon, please report it by clicking here.
Click here if you hear the 2 meter beacon - AND here if you hear either beacon via meteor-scatter. Are you interested in using a Cycloid Dipole for your own purposes? If so, please read this. Remote tuning for Magnetic Loop (ALEXLOOP) antenna by android app via bluetooth. Пару месяцев назад мне ко мне попала антенна ALEXLOOP от PY1AHD.
Loop Antenna Is Portable. We don’t know if [OH8STN] has a military background, but we suspect he might since his recent post is about a “DIY Man Portable Magnetic Loop Antenna.”
“Man-portable” is usually a military designation, and — we presume — he wouldn’t object to a woman transporting it either. [OH8STN] started with a Chameleon antenna starter kit. This costs about $100 and is primarily a suitable variable capacitor with a 6:1 reduction drive premounted and soldered. Of course, you could source your own, but finding variable capacitors that can handle transmit duty (admittedly, these can apparently handle about 10 W continuous or 25 W on single sideband) can be tricky, especially these days. Although he started with a kit, he did modify the antenna to switch between two different sets of ham radio bands.
Remote tuning for Magnetic Loop (ALEXLOOP) antenna by android app via bluetooth. 3D Printing – K1FM.us. I really, really like magnetic loops.
After making a bit of a splash with at the Dayton Hamvention and publishing how to make your own on QST I decided to improve the design a bit more, so here I am with the latest iteration of the K1FM Magnetic Loop. The new design improves the older one in a few key aspects: – Entirely 3D printed– Readily available, made in the USA variable capacitor– Easy to assemble. Www.ve1zac.com/A New Homebrew Magnetic Receive Loop at VE1ZAC.htm. A New Homebrew Magnetic Receive Loop at VE1ZAC October 2013.
Active antennas constructed by other hams using AAA-1. DIY: How to build a Noise-Cancelling Passive Loop (NCPL) antenna. I’ve gotten an number of inquiries from SWLing Post readers asking for a step-by-step guide to building the passive loop antenna I’ve mentioned in a number of previous posts.
This antenna is the homebrew version of the commercially-available Airspy Youloop. It works a treat. And, yes, folks…it’s fun to build. MoonCalc - moon phase, lunar eclipse, moon position, lunar calendar, moon calculator, moon calendar, map, moon rising, moonset, moon shadow, moon height, full moon, new moon. Indoor Mag Loop for HF - Welcome to g4izh.co.uk. KK5JY AutoCap Loop Tuner. For Small Magnetic Transmitting Loop Antennas Matt Roberts - matt-at-kk5jy-dot-net Updated: 2016-01-12 Introduction Small transmitting loop antennas are becoming increasingly popular. Their performance is quite high considering their physical size, and such antennas have proven successful in some of my recent experiments. For contesting operations, particularly when working "search and pounce", it can be quite a challenge to stay on top of the antenna tuning, since the VFO frequency changes minute-by-minute.
2 Meter Full Wave Loop - The Magic Wand Antenna by WB5ISM. The Magic Wand AntennaA Novel 2 Meter Full Wave Quad LoopByWB5ISMJERRY RANDALL (SK March 12, 2011 - See update below) DON'T LAUGH about this antenna! Ripley says "Believe it or Not"! The idea for this 2 meter full wave loop antenna came from QST., February, 1973. The design from QST was altered to eliminate instability in matching to a 50 ohm transmission line. The method used to obtain this new design was strictly through experimentation. Antenna special on hard-core-dx.com. The Hula Loop medium wave DX antenna Take two children's hula hoops, make a T cross and wind five turns of wire through the hoops. Voilá, you now have a superb medium wave DX antenna. Comparison of Kiwa and Quantum loops Which loop is best: Kiwa or Quantum? Mark Connelly has been doing some tests, showing that the Quantum loop is better is several instances, while the Kiwa loop excels when it comes to nulling. 80/160 m coax receiving loops There have been several times that the loop has made the differrence between hearing a station or not.
Though the antenna is not a beverage, it is a good alternative. Magnetic loop antenna Car Tuning. Club news. My Magnetic Loop Antenna Richard Robbins, WA8RRI had read in several articles, the building and use of magnetic loop antennas. I found the following website: web site allows you to enter various values for the main loop. I was interested in 40 and 20 meters.I decided on a loop of 10 feet in circumference using a piece of ½ inch copper pipe.
I wanted to run 100 watts because that is what my ICOM 7300 could put out.The calculations provided the following. I found a piece of 10 foot copper pipe at a local plumber. It is big and heavy…It has a range of 5 pf to 250 pf at 20Kv. Showing the tuning for FT8. KE8O Update on N8OB’s sale I’ve had success selling a lot of Bob’s equipment for Marcella. Jamie in the park (sung to the Chicago tune!) Today I decided to see if my antenna pole would work with the antenna attached. The Miami Valley Steam Threshers 2019 show is coming up in July. Ak4g4loop Antenna. QRQ CW OP, Bert, AK4G, shares the design of his famous 'no tuner needed' 4 vertical Delta Loops, beam antenna Over the years you may have heard about this legendary antenna of Bert, AK4G. He has had one of the strongest HF qrq cw signals in the USA....
More. Amateur Radio. Unlike simple dipole antennas, mag loops can be made to operate over quite wide frequency ranges. Designers have much scope for choice of loop dimensions, power rating, materials of construction, and means of tuning. Choices must be made. A full theroetical analysis of the working of small tuned loop antennas is beyond the scope of this article -- and probably beyond my capabilities!
However, equations that define relevant parameters that are needed to design a mag loop are readily available via the Internet. See: A BROADBAND SHIELDED RECEIVING LOOP FOR LOW FREQUENCY DX WORK. Small Transmitting Loop Antenna Calculator. Small transmitting loop antennas, commonly called "magnetic loops" or "mag loops," can give surprisingly good performance when they are carefully designed and constructed. Although this online calculator is intended to assist with designing and building homemade, ham radio loop antennas for use in the HF bands, magnetic antennas have been constructed that function in the VHF or even the UHF frequencies.
The most common material for home building small ham radio loop antennas is common copper plumbing pipe.This calculator enables you to test the design of an octagonal loop antenna and to answer "what if" questions until you arrive at a design that meets your needs without a lot of experience in electronics.
Length of Conductor (antenna "circumference") feet Please enter the length of the conductor. Diameter of Conductor (For efficiency, should be > 3/8" or 1 cm) inches Please enter the diameter of the conductor. Frequency megahertz Please enter the frequency. Units of Measurement 2. Mike Fedler N6TWW - 2 Meter Halo Antenna. WANT TO GO ON 40 METERS? WANT TO GO ON 40 METERS? Magloop, single magnetic loop, fractal shape magnetic loop antenna magnetic loop, RigExpert, Rig Expert, MixW.
Magnetic loop stepper motor controller yagi ham radio PAØKV Power supply EP-925. Loop Antenna. DL8NDG-Loop. (Jetzt wird's leider etwas theoretisch)Mittels der Formeln. 80-30m Mag Loop. HB9MTN MAGNETIC LOOP FOR 80M - 40M. HB9MTN MAGNETIC LOOP WITH CAPACITIVE LOAD FOR 30-10M. Antennas – LY3H.