dual gate fet

Dual Band vertical antenna for 20/40 - A 20 and 40 meter vertical on Autopilot by K6MHE PDF File

Dual Band Dipole 20-40m - A simple dipole built for two-band operation can be used for portable use and operate 20 and 40 meter bands

The HB9CV - a two element 6m-beam - A dual driven antenna for the 6 meters band.

Dualband J-Pole antenna - A VHF / UHF J-pole vertical antenna de ON6MU

VHF UHF Dualband vertical antenna - Homebrew a dual band vertical antenna

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

I0JXX - The I0JXX is an italian company that offers market their projects, also sells electronic products of high quality, both for Ham, both Broadcast and their accessories. VHF Antennas, mosfet power amplifiers, filters, insulators, power dividers, telescopic poles, antenna masts

US Communication antennas - UnderBumper diversity licence plate antenna system (front and rear license plates) become the antennas. Available in VHF, UHF, Dual Band and other frequencies. We also manufacture mobile antennas for HF VHF UHF wideband antennas

MB7USK - APRS Internet Gateway in Folkestone, Kent UK

Transceiver to pc interface for echolink - with a hardware DTMF detector and galvanic isolation designed for SVXlink based Echolink gateway

TH-D7A(G) Review - Kenwood TH-D7A(G) Dual-Band Handheld Transceiver

Kenwood TH-D7 reviews - Eham reviews of the dual band kenwood TH-D7a/e series handheld transceiver

TH-D7A Review - The Kenwood TH-D7A dual-band data HT by Alan Crosswell, N2YGK

YouTube - Yaesu VX-8R Tri-Band Handheld Ham Radio Transceiver - Package contain 1x yaesu vx-8r 1x sma dual section antenna 1x hf antenna lithium ion battery pack fnb-101li 1x battery charger nc-86c 1x connector unit

Dual Output 200 MHz RF Generator/Detector - Dual Output DDS Based RF Generator/Detector with links for the associated QEX NimbleSig III article download by Tom, VA7TA

A Simple Dual Band SSB Transceiver - Homebrew a dual-band transceiver with a crisp receiver and a clean SSB signal

M3 Electronix Semiconductor Analyzer Kit - A workbench instrument capable of testing transistors, diodes, FETs, usefull constructing QRP circuitry.

Amateur Radio RF Safety - RF Safety, Radiation, RF Dangers, Amateur Radio and RF Safety regulations.

RF Exposure Regulations News - ARRL FCC RF Exposure Regulations

RF Radiation and Electromagnetic Field Safety - Preprinted from the 1997 ARRL Handbook for Radio Amateurs. Thermal Effects of RF Energy, Safe Exposure Levels, Cardiac Pacemakers and RF Safety, Determining RF Power Density

Beware: RF Safety Considerations! - RF Safety reource page with links and more documentation on radio frequency safety

FCC OET -- Radio Frequency Safety - FCC Policy on Human Exposure to Radiofrequency Electromagnetic Fields

N9GL's RF Safety Column - RF Saferty articles publishes by ARRL

FCC: New RF-Exposure Regulations - The FCC has answered some of ARRL questions about the RF-exposure rules. Changes to the regulations have a few pleasant surprises for Amateur Radio.

FCC RF-Exposure Regulations - Station Evaluation - Statio evaluation guidelines and rules for correct antenna setup