w2ihy noise gate constru

2 Metre Slim Jim Antenna Project. - Homebrew a vhf slim jim antenna with a 300 ohm ribbon cable

Cobweb Antenna Construction Details - Detailed instructions to construct a Cobweb antenna with lots of great photos

30 40 Meter Hex Beam Antenna - A hex beam antenna construction project for 30 and 40 meters band by N6AQ

Building UHF Antennas - This method of construction can be used on most UHF through \"low\" microwave Yagis, and is especially useful for the 33, 23 and 13 cm bands

Open Sleeve Elements - The construction principles for open-sleeve elements in antennas

Noise Figure Measurement using Standard Antennas - Measuring noise fiugre on the W2IMU horn and the dual-dipole-feed

Horn antennas - About horn antennas, dimensions for construction of a series of microwave horns

2M Aluminum Slim Jim Antenna - Slim Jim Design and Theory and construction detaoils

Gates M-5078 restoration - An article on the restoration of a Gates Radio M-5078 Commercial HF AM transmitter by John LeVasseur, W2WDX

Olympix - Performance RFI Filters that work right at the noise sources, ferrite cores.

Amateur Chirp Project - Amateur projects to investigate radiowave propagation - G3PLX\'s chirp project, ionosonde database, and more

Lead Acid Batteries - An interesting article on lead acid batteries by G8MNY

FT290 CW KOX Circuit - This is not actually break-in but just KOX circuit. It can only be used on the CW mode otherwise it keys up the Tx

Home Build a CT-69 Microphone adapter - This adapter allows the use of 8 Pin round Yaesu microphones on some Yaesu radios with the 6P6C modular socket by MW0GKX

Dynamic Microphone with Icom Radios - Fitting a Dynamic Microphone to an Icom HF radio and some other radios too!

Yaesu Microphone Pin Outs - Vertex Standard, Yaesu mic pin outs for: FT-90, FT-100D (1990s), FT-2600, FT-3000, FT-7100, FT-8100.

High AMP Crowbar Protected PSU - A crowbar protected PSU project by G8MNY

12V System Surge protection - A surge protection project by G8MNY

Homemade OPC-474 cable - Homemade programming cable works with IC-E90, IC-E208,IC-E2820, IC-2100, IC-2200, IC-2720 IC-2725 IC-2820 and more by MW0GKX

IC-E80 Home made programming cable - Make an OPC-478 PC Cloning / CI-V cable, work with IC-2725, IC-2800, IC-2820 , IC-E80 By MW0GKX.

Yaesu cloning cables - Make a Yaesu cloning cable for Yaesu radios ft-847, ft-857, ft-23, ft-90 FT-1500, FT-1802, FT-2800, FT-2400, FT-2500

Make a Yaesu CT-27A cloning cable - Make a Yaesu CT-27A cloning cable By Brian, MW0GKX.

Icom OPC-1529R programming cable - Home build an OPC-1529R cable, works with IC-91, IC-2200, IC-V82, IC-U82, ID-E880 by MW0GKX.

NEQRP Noise Bridge - A noise bridge is a device for measuring or comparing impedances on coaxial cables, antennas, components, etc.

HSMM project using Linksys WRT54G - Create a APRS digipeater and internet gateway using WRT54G