low pass rf filter

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

Barlow Wadley XCR-30 Home Page - A site all devoted to the first full coverage HF transistorized portable set of the world.

Hams for Christ Net - Fellowship of Christian Amateurs meeting M-F on 40 meters

Christian Amateur Radio Fellowship (CARF) - CARF combines the wonderful world of amateur radio with Christian fellowship and service.

9H9SWT SES - "U.S. Swift Boat SailorsßReunion activities, Special Event Radio Amateur Station callsign ""N4S"" will be operating from March 20 to 23, 2003 from the Sheraton Waterside Hotel, Norfolk, Virginia USA."

Knightsqrss Info Page - This mailing list is devoted to low power, narrowband experimenting (QRSS CW, DFCW, etc). You are invited to share your ideas with the group, announce on-the-air schedules, etc by posting messages

Eurofrequence Dierking NF HF Technik - UFB Hamradio audio filters and more accessories

Leitner Elettronica - RF Amplifiers for HF VHF UHF

Nemal Electronics - Manufacturer of standard and custom electronic cable, connectors, cable assemblies, and patch panels for broadcast, audio, video, RF, microwave, and electronic control applications.

Laipac Technology Inc. - We are committed to constantly improving our solutions in areas of GPS System, GPS Receivers, GPS Antennas, GPS Dataloggers, RF Modules, Wireless Security Systems, Automatic Vehicle Location (AVL) for real time and passive tracking

Marine broadcast - World Wide Marine Radio Facsimile Broadcast Schedules From NOAA, wefax scheduling

50 Mhz Dx & Audio Files - Lage collection of 6 Meters and 2 meters QSOs, recorded in real audio format by OE3MWS

EQSO.ORG - eQSO is a complete dedicated ham radio internet gateway and server system. It is intended for use by RF gateways and PC users connected to the internet

Internet Radio Linking Database - The purpose of this site is to allow users to be able to easily search an area and determine what users or linked systems are available for use there.

KC5ORO Echolink Internet Linking System - Echolink is software that allows amateur operators to communicate via the internet. It works by VoIP or Voice over IP technology

General Aviation Frequencies - General use frequencies

Cheap QSL'S - Low cost QSL cards for the Amateur and SWL

Digital Modes collection - RTTY SSTV PSK31 MFSK MT63 PACKET APRS and more...

iSpectrum Analyzer - Macintosh audio spectrum analyzer that allows the user to view live audio in a standard frequency plot, a stereo oscilloscope view and a waterfall display

ISSTV - ISSTV is a freeware software for amateur radio that allow sstv connections via internet and radio waves

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

Amateur Radio Repeater Controller - The project requirement is to design the interface to the signal channel elements after the receiver and before the transmitter

converting AWA RT-85 E band to 6 metres - conversion of low band VHF AWA RT-85 transceiver down to 6 metres.

converting AWA 25M-22 to 6 metres - conversion of low band VHF AWA 25M-22 carphone onto 6 metres.

converting AWA 25M-1 to 6 metres - conversion of low band VHF AWA 25M-1 carphone onto 6 metres.