w2ihy noise gate constru

Ionic Liquid Antenna - Ionic Fluid Antenna By Brian Perrett, MW0GKX, from original articles by David Hatch, N9ZRT.

19 elements Plus2 LFA Yagi for EME Priority listing - A Low-Noise Urban 19 element Plus2 LFA Yagi for 144MHz, check the VE7BQH list, no other 2M antenna comes close in performance. You can build it yourself for free

11elements yagi for 70MHz Priority listing - Low Noise 4m LFA Yagi. No matching needed, flat SWR across the band. Ideal for field day etc. Serious gain and F/B by G0KSC

10 elements 70MHz Low Noise LFA Priority listing - A 10 element 4M LFA Yagi. Flat SWR across the band, easy build with no matching to install. No power limit high gain.

Low-Noise LFA Yagi for 70MHz Priority listing - Super flat SWR from this high gain easy-build Yagi. Great for home or fild day.

4:1 balun project - CVARC 4:1 Balun Project Kit by AE6YC

Guanella 4:1 balun - This article reviews the proposition that a 4:1 current balun in the style of Guanella can be constructed with both pairs of windings sharing a common magnetic circuit.

Bent Dipole with gain - Bent dipole plan by G8MNY

Constructing simple wire antennas - Simple wire antennas like dipoles and verticals are dead easy to make: here’s how

2 Element Quad Project - 2 element quad antenna project with different construction from all pvc for 12, 11CB, 10 meter and up.

EME stackable 9el 144MHz LFA Yagi - High Gain Low Noise 9el 144MHZ LFA Yagi. Flat SWR and no matching required. Very low temperature see lowest Ta on VE7BQH list ofr this size!

8 Element Yagi for 6 meters - A Low-Noise Urban 8 element LFA Yagi for 50MHz

Southeastern Asterisk Radio Networks - Interoperability solutions via Asterisk based RF Gateways - Southeastern Asterisk Radio Network (SEARN) and the Southeastern Asterisk Amateur Radio Netwok (SEAARN) are designed for the purpose of developing interoperability capabilities amongst diverse communications systems. Digital Amateur Radio Project Association - DARPA expanding the digital experience.

muTek Limited - Manufacturer of RF amplifiers, low noise pre amps, transverters, power supplies

Misek Antenna Research - Publisher of The Beverage Antenna Handbook. Supplier of transformer cores, clips and FET's used in Beverage Antenna construction.

EME Low Noise 14 elements Yagi - Ideal for EME with a Sky Temperature never seen at this boom length. Amazing pattern and flat SWR. 50 Ohm with no matching required.

A Two-Way Morse Practice Set - The system consists of a pair of Morse practice oscillators connected by a piece of two-conductor cable. Pressing the key on one unit produces a sound in both units by Peter Parker VK3YE -

About Repeaters - Introduction to repeaters, repeater bands, linking, repeater gateways, using repeaters and operating guidelines by WIA.ORG.AU

Dutch Amateur Radio Transponder on HAMSAT  ^updated - Announce from PE1RAH regarding the dutch transponder on hamsat VO-52

IC-7000 Mods - IC-7000 TV Enable Reception, ) TVRO & MARS (US version), TVRO & MARS/CAP Mods by N5AC, IC-7000 RX range expand mod, IC-7000 Tone noise, How to fix the IC-7000 audio noise

HF Packer- Amp Project - 3rd Generation HF Packer-Amp home construction project

Simple beacon construction notes - Here is a simple, self-contained beacon which can run a few milliwatts or as much as a watt depending on choice of amplifier and supply voltage.

Frequency Counter project  ^updated - Circuit and construction instruction designed by Mani VU2ITI

Yaesu FT-1000MP NB Key Click mods - Keyclick and Noise Blanker modification of the Yaesu FT-1000MP Mark-V

Regenerative receiver for the AM band - Build the Moorabbin, a regenerative receiver for the AM broadcast band by Peter Parker VK3YE