homebrew rf attenuator

EFHW Vertical Antenna - Steve G0KYA project of and End Fed 1/2 Vertical

T2FD The Forgotten Antenna  ^pop - "Some have called the T2FD a ""squashed rhombic"" antenna. It does bear some design similarities to the non resonant rhombic, but theoretically it is admittedly inferior. However, the T2FD performs well in a modest amount of space."

Surfing my World - Something aboutme where I come from with interested links and about the Charlie Sierra DX-group.

ON6MU's website for Radioamateurs and SWL's - Ham homebrew, software, and ham info

Amateur Radio RF Safety Calculator - This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations.

Angle linear  ^pop - Linear Radio Frequency (RF) products and peripherals for communications

Comet Antennas  ^pop - Distributor for COMET and MALDOL brand antenna products designed, manufactured in Japan. Distributor of DAIWA brand RF SWR/power meters and switching power supplies.

WIMO - All kinds of antennas, RF connectors, radio transceivers and accessories like power supplies, morse keys, lowpass filters and so on.

Optoelectronics - DTMF, RF, decoders receivers and accessories icluding computer interface boards, frequency counters, tone decoders, spectrum sweeper and nearfield receivers

Pasternack Enterprises, LLC - Manufactures and sells coaxial connectors, coaxial adapters, coaxial cables, attenuators, directional couplers, fiber optic connectors, fiber optic adapters, fiber optic cables, coaxial switches, terminators, twinax connectors and cables and tools.

Hardware interfaces - The LCU-3 is an inexpensive unit that interfaces your radio to your computer.

INRAD International Radio - Supplier of custom designed, high performance quartz crystal filters for communications receivers and transceivers, for Yaesu Icom Kenwood and Collins radios

AEA - AEA Technology Inc. is a pioneer and leading manufacturer of RF and cable test equipment for the wireless, Telco, CATV, NMR & MRI, RFID, telemetry, aviation, commercial, military, and two-way radio industries. Produces SWR Meters, Pre Amplifiers, filters, power meters and antenna testing products

Heathkit SB-220 and SB-221 essential mod - Modifications to avoid damage when 3-500Z tubes fail.

RF Parts - Antennas, books, rf parts, tubes,connectors and cables and many accessories at RF parts.

Funkenhauser's WHAMLOG & Mediumwave DX Links - Free WHAMLOG files download page, medium wave (AM/BCB) resources, homebrew loop antennas, radio receivers, DX lists, DXpeditions, ODXA MW Notebook.

DOS programs by g4fgq - Small collection of DOS antenna design and RF calculations programs

DXtreme software - DXtreme Software produces powerful and easy-to-use logging applications for radio enthusiasts such as Amateur Radio operators, Shortwave DXers, Shortwave listeners, Broadcast band DXers, VLF DXers, VHF, UHF, and TV DXers

DX 4 Win  ^pop - DX4WIN is an easy to use, yet powerful logging program for every ham. It has been designed for the the serious and the casual DXer.

KaGold and PkGold - Performance Software for AEA and Kantronics TNCs Recognized Leader in Packet Amtor RTTY Baudot Pactor Gtor ASCII CW Morse support

AR Cluster - AR-Cluster is a ham radio packet cluster software supports both node and user connections using RF and Internet. Currently available in Standard and Enterprise version.

The AA4M ~ QQSL Web Page - Home of the ultimate Ham Radio QSL Label Program! Quick QSL for DOS, featuring great color, dot matrix, laser, and inkjet printer support, a user-friendly interface,

BTL Blaster TeLetype - High performance RTTY reception and transmission software, need a Sound Blaster compatible sound card.

YC156 Conversion - RF Amplifier project modified the original chassis to use a 4CX1000A instead of a YC156 triode

SWR Mega - SWR Power Meter - SWR and RF power meter for home usage, 8 different RF probes with different characteristics and power ranges by OK1DX