delta loop 14.mhz

K7TJO copper pipe hentenna - Hentenna calculations and resources. Copper tubing / pipe with javascript calculator. Rectangular loop with matching section.

160m Shielded loop antenna - the 160m shield loop antenna based on W1FB articles in a number of ARRL publications

A Small Loop Antenna for Forty Meters  ^pop - Article on a small loop antenna for forty meters band by Ben Smith, W4KSY

Umbrella Loop Antenna - Contruction notes of an Umbrella Loop antenna for AM shortwave listenings

Small styrofoam loop - Contructing a loop using a styrofoam block

Wellbrook ALA 1530 active magnetic loop review - Interesting review about active magnetic loop antenna Wellbrook ALA 1530 and 330S by ON4SKY

Thinking about Ideal Loops - Loop antennae have been used from ELF to UHF since the beginning of radiocommunications. At low frequencies, the main problem for loop antennae is to have enough sensitivity; the antenna being very small respect to the wavelength the collected energy is also small. To increase the output level the loop may be made resonant, so loosing it%u2019s intrinsic aperiodic characteristics.

The Four Foot Loop Antenna - AM Four Foot Loop Antenna for VLF

The two foot loop Antenna - two foot AM loop antenna

The Ribbon Cable Loop - The portable 3 foot ribbon cable loop

HF Receiving Loop Antenna - HF receiving loop antenna, an easy-to-make receiving loop antenna for HF

Tableantenna - An invisible magnetic loop antenna mounted under a table by PY1AHD

A Magnetic Loop antenna for 7-21 mhz - If you find external wire antennas obtrusive for amateur radio or short wave listening, then this is the antenna for you, is just 1 meter diameter

An easy loop for VLF - An easy VLF loop, 200Hz-20kHz reception without transformers by Renato Romero and Marco Bruno

The Folding Loop - The folding loop antenna for VLF

The Quarter Wave Sloper or the Inverted-V Dipole - A question that seems to be asked nearly everyday is, which is best, the quarter wave sloper or the inverted-V dipole? PDF File by AD communications.

Quad or Loop antenna - Information about quad and loop antennas, matching tips, differences on polarization and impedence by PA0FRI

SD Russia - Sugar Delta Division European Russia

Alpha Delta Communications - Manufacturers and distributors of coaxial surge protectors, coaxial switches, HF fixed wire antennas

Radio Free London - Radio Free London is now BACK ON THE AIR. We are now back on medium wave (AM) on 1125kHz (266 metres) and 5805kHz short wave every Sunday. The SW service consists of a 4 hour loop of 2 programmes. The medium wave service has a third bonus programme making it a 6 hour loop of 3 programmes.

AM Loop Antenna Calculator - Java script calculator for AM loop antennas

WD6CNF Voice keyer - Audio voice keyer Microphone input, speaker output Live microphone enable Record/play audio from twelve memories Display text of recorded audio Transmitter keyed via serial (com) port Loop (with variable delay) audio output

Grounding Concepts - What is ground?RF ground and the ground plane, how can I tell if I have a good ground? ground loops

Why grounding - Overvoltage protection, Voltage stabilization, Grounding in wiring, Ground wire resistance

QRM and noise reduction Priority listing - You will find on these pages my experiences and results on antennas and local/non-local QRM/noise reduction. Using a broadband vertical active magnetic loop and a home made / designed broadband amplifier. Two vertical magnetic Alford loops are used in an array. Analog and Digital Signal Processing and a dual phase coherent Software Defined Radio (SDR) are used. By PA0SIM