l1 coil

40/80 Coil loaded dipole - A coil loaded dipole antenna for 40 and 80 meters band by I2CN

Antenna Loading Coil Calculation  ^updated - The calculation refers to either a loaded 1/4 wave or a loaded dipole,

Coil Designer - Mk 2 - This page lets you do calculations for single layer air cored coils using the solenoid formula

Phased Array Discussions - Interesting discussion about phased array antennas

Hentenna for the 6m band - An Hentenna plan for six meters band

DH0KAI Magnetic loops - Pictures of some home made hf magnetic loop antennas

PA3CQR Magnetic loop antenna - PA3CQR practical experiments with magnetic loop antennas.

3MA triband mobile antenna - 3 band mobile antenna - 10m full size wave/4 whip - quick tilt-down system for 20 and 15 m loading coil change by IZ7DJR

Base Loaded 160M Half-Sloper Antenna - K0EMT 160 meters sloper antenna

DX-Cluster nodes on maps - Here you get pages with TELNET and HYPER links to all DX-Cluster Nodes in a graphic manner.

AL7YK Bethel Amateur Radio Club - Ham radio club in alaska

CWS Coil Winding Specialist - Manufacturer of transformers, inductors coils and chokes. Custom winding, EMI / RFI Filters, Antenna Windings on ferrite rod, Antenna Winding on phenolic. Any antenna coil designs.

BG Micro - All kind of electronic components, Hobby Electronics and Parts, motors, Sun power solar panels, switches, rechargeable batteries, RF Coils, Coils and Chokes

Communication Coil - Communication Coil, Inc. designs and produces custom, high reliability Filter Networks, RF Coils, Chokes, Inductors, Baluns, Toroids and Power Magnetics for communications

Filtronetics Inc - Maker of filters, oscillators, cristals Coils, Toroidal Inductions, Solenoids, Bifilar wound Solenoids, Trifilar Solenoids and Transformers Located in Kansas City, Missouri

Bicycles and Radios - ARRL article on ham radio bicycle mobile operations by Dick Arnold, AF8X

Kenwood TM-G707A Motorcycle setup - "Rob" Roberts - KH7MW 2001 1800 GoldWing

MFSK16 - An MFSKMulti-Frequency Shift keying DX Mode. A new weak signal DX mode for Radio Amateurs, employing M-ary FSK, phase continous tones and convolutional coded FEC.

Using the QST propagation charts - Notes on using the QST propagation charts to determine propagation conditions

Helicoil - Noble Enterprises, Heli-coil Helicoil, Helicoil Insert, Helicoil Inserts, Inserts, Cutting Tools, Thread Cutting Tap, Thread Cutting Tools, Machine Tap,

ADIF to Excel to ADIF Converter - Excel based converter to import ADIF to Excel table and Export Excel Table to ADIF

NZART Morse Tester - Learn morse code with NZART Morse tester. Is a shareware run under windows Windows 95/98 and above, small size and easy to use by ZL1AN

Pocket Sat Tracker 2008 - Fast based on .Net. More than one satellite for tracking, schedule (file, Appoitments), Dopler, getting location and time by GPS, udate TLE via internet, select satellite by click, time in parametr, Sun&Moon, radar, output coords and dopler to any COM port using NMEA-183 format. Freeware.

Increasing Amplifier Relay Speed - Article describes a circuit that accelerates the coil of DC relays by momentarily doubling their voltage.

Coil Inductance Calculator - Calculate the inductance of a single-layer, air-core coil.