w2ihy noise gate constru

Ionic Fluid Antenna - Ionic Liquid Antenna (ILA) by MW0GKX from original articles by N9ZRT

An Inexpensive Vertical Antenna for 2m - This antenna is constructed from RG58 coax and a length of 1.5 m PVC pipe

2m 4-element Quad you can build - A 2m 4-element quad antenna that you can build easily

Slim Jim Antenna Project - Starter project is the Slim Jim antenna for 2 Metres

Ladder Feeder Slim Jim Antenna - A good starter project is this Slim Jim antenna for 2 Metres using 450Ω Ladder Feeder

Ladder Feeder Dual Band Antenna - 450Ω Ladder Feeder Dual Band Antenna

70cms and 2m Dual Band Aerial - A prototype antenna built using a single approx. 2.3 meter length of 4mm stainless steel wire

23cm 6-element Yagi design - A neat, 6-element yagi antenna for the 23cms band from DG2GAJ

A simple 3 ele yagi for 144Mhz - A very easy-to-build 3-element yagi antenna for the 144mhz band

Gippsland Gate Radio and Electronics Club - The Gippsland Gate Radio and Electronics Club Inc. (GGREC) is a group of amateur radio operators and electronics enthusiasts who promote all aspects of hobby telecommunications, computers and electronics

KRG Kidderminster Repeater Group - A non-profit organisation responsible for the maintenance of the GB3KD 144MHz VOIP Repeater, and KidderLink simplex gateway, plus the KIDDER packet radio node and GB7PZT bulletin board system.

UK Amateur Radio statistics 1975-2000 - The Amateur Radio statistics covering 1975-2000 and 2006-2010 have been made available on the web.

TinyTrak 4 and APRS - Tiny Trak 4 APRS and a new IGate

Kenwood TS-480 Notes  ^updated - N0RQ's brief notes on the Kenwood TS-480

FT-817 NB Improvement - Yaesu FT-817 noise blanker improvement

AO-51 on Baofeng UV-3R - A video of Clayton W5PFG trying his $60 Baofeng UV-3R handheld on the Amateur Radio satellite AO-51

Transistor PA Biasing - Here is a simple circuit that can deliver the peak base current needed for linear ssb operation

Power Supply for Floating Pb Batteries - An easy-to-build power supply for floating pb batteries

Dummy Load Construction - Home made dummy load by M1HOG

A 50+ Watt Dummy Load - Dummy Load construction project by Brian, MW0GKX

DC RF Sensing PA Switching - Circuit for dc/rf sensing pa switching from g8mny

Non-relay instant RF Switching - Coax lines to do the RF switching. The advantages are instant switching, no power wasting DC control circuits.

Logic Probe - An easy-to-construct logic probe for the electronics enthusiast

Oscilloscope Tester - Circuit to assist in the setting-up and calibration of oscilloscopes

70 MHz transverter - Construction of OZ2M 70 MHz transverter