microphone pre amp

Testing EH Antennas - EH antenna tests report by Claudio Re, I1RFQ in pdf format

W8JI Technical pages  ^pop - Amplifier, vacuum tube, receiving beverage loop vertical and transmitting antenna system technical information radiation resistance, EH antenna, noise,receivers, and information on keyclicks.

Antique Radio Club of Illinois - ARCI is a family of over 500 people dedicated to the preservation of antique radios and related items. ARCI hosts the annual RADIOFEST meet in August.

Radioclub of Campina - Radioclub from Campina city in Romania

DARC OV M05 - hamportal with many news and german links for hams.

Northeast Georgia Amateur Radio Club - official website of the Northeast Georgia Amateur Radio Club

Murray State University Ham Radio Club - A recognized organization of Murray State University providing programs and activities that promote interest in Amateur Radio within the campus and community.

hfradio.org Amateur Radio Resource Center - A comprehensive resource center with DX aids, live propagation, callsign searches, news and bulletins, maps, and more by NW7US

Amateur Packet Radio Gateways - You'll find more than 330 Amateur Packet Radio Gateways on world maps.

Yaesu WIRES II - WIRESTM (Wide-Coverage Internet Repeater Enhancement System) is a comprehensive and easy-to-use system for linking repeaters and/or home stations together, using Internet voice technology. This site contains information regarding the WIRESTM Internet linking system from Vertex Standard

g3vdz/mm - maritime mobile station, with sound sample in audio wave files

Leitner Elettronica - RF Amplifiers for HF VHF UHF

On-Line HF Propagation Prediction - *One single page* gives you an immediate overview of current shortwave propagation conditions at your location.

KN4LF Daily Solar Space Weather & Geomagnetic Data Archive - An archive of daily solar, space weather & geomagnetic data.

South East Michigan Scanner Page - A resource for scanner owners in the Detroit metro area, and surrounding counties. Featuring frequencies and information about public safety scanning.

QSLWorks - Premium quality, full color, custom QSL cards produced in America's Heartland, competetive rates. Produced by Hams for Hams!

Radio Pro Shop - 11 Meter CB, 10 Meter Amateur Ham, FRS, GMRS Radios, Test Meters, Scanners, Antennas, Microphones, Power Supplies, Inverters, Accessories and Technical Reference Information.

Mapper - You can plot stations, country prefixes and print the maps over multiple sheets of paper.

DXProp  ^pop - DXprop is a radiowave propagation forecast freeware for ham radio operators, permits to predict propagation on 12 frequencies. Use Minimuf 3.5 routine developped for US Navy. Available in French and English

QRO via Russia - Power amplifiers from amateur radio operators around the world which are designed/built using Russian tubes.

11Meter Amps  ^pop - This group is here to discuss linear amplifiers used on the 11 meter citizens band.

2 m. Band VHF PA 5 Watts - A VHF power amplifier made with two cheap RF transistors, 2N3924 as driver and a BFS22A for final stage, giving an unexpected output power of 7-8 watts maximum

IK4AUY Sergio - Advanced QRP Low Cost Mosfets HF Linear Amplifier with schematics, IMD, gain data and more. Six articles about amateur radio.

Scout Camp Repeater Project - Athens ARC repeater project

SWR bridge - This SWR bridge works by sampling the amount of power flowing in each direction along the aerial feeder.