vlf antenas

LU9DPD Daniel - Homebrew, antenas, balunes, expediciones, circuitos, electrónica, torres, fotos y relatos, todo referente a radioafición, radioaficionados y radioamateur

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

VHF-UHF Portable Yagi-Uda - VHF-UHF portable Yagi-Uda antenna design and construction notes by XE1MEX

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

LF/VLF Portable Loop Antenna - The octoloop antenna is a length of 25 pair telephone wire inside an octagonal loop shield of 3/4 hard copper pipe

Loop-Uda-Yagi for 2.4 Ghz  ^updated - Information on wifi antenna

PY3CRX PY2PLL Priority listing - Portuguese page, from VLF to some GHz, antennas, projects, EME, NDB DX and more.

LU4WG Jorge - Pagina personal de Radioaficion, Satelites, Antenas, Electronica y Aviacion

ON2BBP Joost - Website of ON2BBP, ham radio operator of Mortsel, Belgium, operating vlf, with some useful loop antenna projects.

NASA Online VLF Receiver  ^pop - Hear VLF audio from NASA online VLF radio receiver in Huntsville, Alabama.

WL1030 Wideband Magnetic Loop - Wideband receiving loop for VLF LF HF 10 kHz - 30 MHz

Definition of frequency bands - Definition of radio frequency bands, hf vhf uhf etc.

VLF Time Signal Broadcasts - Station List Compiled by William Hepburn, LWCA

VLF Natural Radio Discussion Group - Discussion group dedicated to those who enjoy monitoring radio frequencies in the VLF radio spectrum and slightly below the VLF spectrum (3-30 KHz).

VLF Loop Antenna - A project on building a VLF loop antenna

Radio waves below 22 kHz - Exploring ULF-ELF and VLF radio band

VLF-LF And the Loop Aerial - The article discusses the theory of loop aerials for receiving and how they reduce the level of local noise. A Loop Aerial is described suitable for use on the LF and VLF bands together with a circuit of an interface loop tuner and preamplifier. The discussion extends to the problems of amplifier noise and the advantages of tuning the loop.

G3XBM Roger, QRP pages - G3XBM's Amateur Radio Page - with QRP, VLF and crystal set links

K3PGP Experimenter's Corner - Covers experimental work from VLF through laser by K3PGP, one of the EME pioneers.

Natural VLF Radio - Sounds of Space Weather by S. McGreevy, N6NKS

Natural radio signals - Radio signals of natural origin

Spectran - Program designed to do spectral analysis and real-time audio filtering on reception of audio signals for EME, VLF, SETI applications. Offer support for MTHELL, QRSS, DFCW, NDB, WSJT by I2PHD

DXtreme software - DXtreme Software produces powerful and easy-to-use logging applications for radio enthusiasts such as Amateur Radio operators, Shortwave DXers, Shortwave listeners, Broadcast band DXers, VLF DXers, VHF, UHF, and TV DXers