Overview: When we released the 2018 version of the Alpha Loop, we conservatively rated it at 30 watts. Product information Technical Details Additional Information Feedback Would you like to tell us about a lower price? Make a magnetic loop antenna for 7-21 MHz. A small magnetic loop antenna is an easy and cheap antenna to build. Magnetic loop antenna is a compact efficient antenna that is ideal for portable operation or limited spaces and can be improvised inexpensively. Hence large loop antennas are preferred over smaller . Loop antenna - Wikipedia EME234 HF Active Magnetic Loop Description: The HF Active Magnetic Loop Antenna module has been designed to be easy to construct and install, and covers a wide frequency range from 1 to 50MHz. Have a minimum power limit of 30 watts ( for CW and PSK31). Amateur Radio | Magnetic Loop | Pracomm Practical Communications LLC AND PRACTICAL HIGH POWER MAGNETIC LOOP ANTENNAS Business Hours. ? One idea I successfully employed on VHF, consisted out of a copper fitting, lined with a 1.5mm-thick PTFE (Teflon) sheet, and inserted by a snugly fit brass bolt. Comparison of Electric Dipole Antennas and Magnetic Loop Antennas Various articles have appeared describing magnetic loops for HF use, some with complicated methods of remote tuning and the antenna can be quite a useful and interesting project. The capacitance required to tune drops by almost half but the volatge rating needs to nearly double. SML-500-1 "Ghost" Edition. A magnetic loop antenna is a winding of copper wire around a frame (for air-core loops) or around ferromagnetic material (for ferrite loops). The G4ILO Wonder Loop is an inexpensive, easy to make magnetic loop antenna that covers five HF bands, 40m through 15m. Magnetic loop antennas have become popular in recent years as they solve many of these problems. Since antennas are reciprocal, transmit efficiency and receive efficiency are exactly equal. Power surges covered from day one. 14-30 MHz Magnetic Loop Antenna - QSL.net Low Cost Magnetic Loop Antenna For 10-12 Meters - QRZ Now Here is a high voltage shunt capacitor made from 154 cm (60.5 inches) of RG-58/U coaxial cable (approximately 150 pF) attached to the indoor 3 foot magnetic loop antenna. The K1YPP Magnetic Loop Antenna | K1ypp's Blog The G4ILO Wonder Loop Small Magnetic Loops. Sell now Shop with confidence eBay Money Back Guarantee Get the item you ordered or get your money back. M. MARIJAN BILJAN. Mon - Fri: 9am - 5pm Saturday: 9am-1pm Sunday: Closed Quick View. The RF-PRO-1B from DX Engineering. . The antenna tuned from 6.86 to 7.67 MHz with this capacitor attached across the butterfly capacitor stator terminals. drops from 5.9kHz to 2.6 kHz. This is because they mostly respond to the magnetic component of an electromagnetic wave and transmit a large magnetic component in the extreme near field (<1/10 wavelength distance). Extensive testing has enabled us to announce that all 2018 30W Alpha Loop antennas purchased after January 1, 2018 can accept the new power levels. j•Com MagicLoop Antennas. Also supported is 20W PEP SSB on 40/60/80 Meters when the included Booster Cable is installed on the included Tripod. COMBO SML-500-1 "Ghost" Edition + 33FT of Low Loss Coaxial Cable. My new antenna would have to meet three requirements: Cost $50.00 or less (excluding remote tuning devices, such as motors, hydraulics, etc.). Cover 40, 30 and 20 meters. The performance over the large loop sis .