50 ohm attenuator

The Cycloid Collinear, a CP Omni - This paper describes a wide band, high gain, multi-element cp omni with a single 50 ohm feedpoint with instructions for building a 2 and half element cycloid collinear for 2 meters.

F5DQK Vinecon 6N4 - A dual band antenna for 50Mhz and 70Mhz with lots of pictures and diagrams by F5DQK

The YU7EF Duo Band Antenna - The original project of a dual band yagi antenna for 50 and 70 mhz, published on dubus 2/2007 by YU7EF

Comparison of 70 Mhz antennas - Comparison of 50 and 70 Mhz antennas, commercial and home made projects

50 Mhz 5 element EMT Conduite Beam - VA3EXT 5 element beam antenna for 6 meters band

UHF 11 elements beam antenna - An eleven elements yagi antenna for 430-450 Mhz by PU1LHP In portuguese

4el. Hentenna for 50MHz - A 4 elements Hentenna for six meter band

6 element Log Periodic for 50 Mhz - A project by G3SYC of a log periodic antenna for 6 meters band

Windom Antenna with 4:1 balun - The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .

Pacific T.V. Online Tube Catalog - Vacuum tubes and sockets for radio, audio and amateur use. Over 1500 types, online schematics and technical data

UKSMG sporadic-E competition - THE Six Metre event of the year The contest is open to all users of 50MHz, whether or not UKSMG members.

The CQ DX Field Award - The CQ DX Field Award is issued in four categories—Mixed, CW, SSB, and Digital—for confirmed two-way contacts with 50 or more Grid Fields

Morse Code Symphony - Beethoven Fifth in Morse Code

W3AD Cabin Camera - Live controllable web cam

TOYO Connector (TYC) - Certified under ISO9001:2000 and focus on sales of high frequency coaxial connector (BNC, TNC, SMA, SMB, N, F, UHF, RCA etc); attenuator; termination; surge arrester; conversion; coaxial cable assembly; high frequency coaxial cable etc.

VK3RVZ IRLP Node 6506 - VK3RVZ IRLP Node 6506, covering the Port Phillip bay area and inner suburbs

Heathkit SB-220 - The Heathkit SB-220, two 3-500Z, amplifier made a notable impact in the world of amateur radio when it debuted in 1975. Resources and modifications

QTH Locator - QTH Locator is free Windows program to calculate distances and angles between 2 stations, with a data base to handle and store position data (even usable as a simple logbook) and a lot of graphic stuff to display geographic positions. It is capable to display self-made maps or UIVIEW maps also. by dg4mcb

KE7ATE - VR-5000 Signal Capture and Analysis Software - Give your VR-5000 a new face. Controls your VR-5000, Log stations, Manage frequency lists, Record Audio and more. This program utilizes a more visual approach to simplify your radio listening.

50 Mhz solid state 600W amplifier - G3WZT John Matthews project of a 600 Watt solid state linear amplifier for the 6 meters band

100 W Resistive Load - This was a project to make a dummy load or, as the finished thing is more correctly labelled, a fifty ohm resistive load.

Build a 2 meter duplexer - The duplexer is conservatively rated at 150 watts input, but it should withstand up to 300 watts.

500 KHz Low Pass Filter - This article describes a shielded low pass filter with a cut off frequency of about 500 KHz. It is built with components suitable for receiving, and was designed to use in front of a low frequency receiver for LOWFER work.

500mw CW Transmitter - A very quick and easy way to get on the air is to build a "Michigan Mighty Mite" CW transmitter for 160, 80, 40 or 30 meters. It can't get simpler than this. It has very few parts, costs almost nothing, and it works! Cost estimate $10 by VE6WTF

AR5000 a multiple talent - Convert ar5000 from 10.7 Mhz to 70.7 Mhz