1431 khz loading coil

Rotatable Dipoles  ^pop - Portable, and shortened with loading coils rotatable dipoles for 6 meters, 20 meters and multibands.

Current distribution in Coils - Current distribution in the antenna loading coils

Three or four foot box loop - Plans to build a three or four foot box loop for the AM broadcast band, will tune from 530 to 1710 kHz.

I5TGC Antennas - Reduced size longwave antennas by Cesare Tagliabue I5TGC and his experience on 136 kHz band.

Inductors used in antenna matching networks - Article about variometers, helipot inductors, roller inductors, binary switched inductors, Coil and Capstan by G3YNH

N5BU BoatAnchor Pix - Contains high resolution fast-loading images of BoatAnchors

Longwave Non-Directional Beacons - Beacons operating in the longwave radio spectrum, generally between 200 and 450 kHz

Beacons on 110-148 kHz - LF Utility Stations 110-148 kHz maintained by Marco, IK1ODO

OK0EN QRP beacon - 3600 kHz Beacon from CZeck republic

PA3ANG Online Receivers - Control an ICOM PCR-100 and listen to the audio stream. This web controlled receiver si based in the Netherlands by PA3ANG and offer 10kHz - 1300MHz in AM, FM, FMW

Mr coily - Base and mobile antennas,custom ball mounts, single, double, triple coil antennas, flat coils.

Valcom Fibreglass Whip Antennas - Manufacturer of Fibreglass Whip Antennas, Low and mediun Frequency, HF and VHF Antennas Specialized in the design and manufacturing of a full range of Beacon (MF), AM Broadcasting 540 - 1700 KHz, HF 1.7 to 30 MHz, VHF 30 to 156 MHz and UHF 200 to 500 MHz antennas.

Hi-Q Antennas - HF Ham Radio mobile operation antennas manufacturer, W6HIQ, HA5CMG, VE7BOC, HF mobile antennas, screwdriver antenna, coils and filters.

Barker & Williamson - Dipole antennas, unique broadband antennas, trap dipole antennas, coils, accessories for HF radio

Longwave Home Page - The World of Radio Below 500 kHz by the Longwave Club of America

Long Wave Radio - Dedicated to 136 Khz band by G3YXM includes news, links and software useful for LF working.

Amrad LF operatoins - Lot of useful information on experiments on 136 Khz band, with antenna tips DSP infos and notes on their activity in LF.

Tropical radio stations - List of tropical radiostations from 2300 to 5100 khz

The Dutch Relay Service - A relay service that is active on 15070 & 21890 khz AM. Also here the info that you need to get your program world wide into the air.

Quickyagi - This is the place for downloading the latest DOS version of Quickyagi the freeware yagi modeling program with auto-design & optimize.

WINRLC - Simple freeware tool to calculate several kinds of HF filters. Use to calculate L-C and R-C band filters and bandpasses, L-C, L-R and R-C highpasses and lowpasses, coils and capacitors.

Free programmable DSP-Filter  ^pop - Free programmable LOW/HIGH/BANDPASS FIR filter in the audio range 0-4kHz

VQLog - VQLog is a shareware log-book program for Windows specially intended for HF or VHF-DX'ers and Satellite enthusiasts, and it is fully usable for ALL amateur bands from 0 KHz to 99 GHz

WinWarbler - A free soundcard application supporting PSK31, PSK63, RTTY, CW, and Phone operation. It can decode all PSK QSOs within a 4 KHz segment, maintaining a sorted list of heard callsigns; it can simultaneously decode RTTY via soundcard and an external modem, generates CW directly or via WinKey, and includes a voice keyer. WinWarbler interoperates with the free Commander, DXKeeper, and SpotCollector for transceiver control, logging, and spotting.

Homebrew radio receiver  ^pop - Detailed plans of my homebrew receiver. Frequency coverage is from below 300kHz to 30MHz. Pictures, schematics, board layouts, parts lists and more can be found here.