coaxial cable traps

144MHz Slim Jim antenna - 2 Meter band Slim Jim antenna using a 300 Ohm ribbon cable

Baluns on Log Periodic Antennas - Some antenna manufacturers place baluns at the incorrect location in LPDA arrays, or tell you to route the cable incorrectly. This can cause substantial RFI and all sorts of weird problems like RF into house wiring.

Magnetic Long Wire UnUn 9:1 - An impedance transformer (9:1) to feed a high impedance long wire (~450 ohm), down to a 50 ohm unbalanced coaxial input.

QRP Magnetic longwire balun with VHF-splitter - This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.

Coax Bazooka type antenna - 2 metre and 70 cm Coaxial Dipoles, Double Bazooka type

Bootstrap coax traps for antennas - Analysis of an antenna trap where a coil is formed of a length of coax cable, the outer conductor of one coax end is tied to the inner conductor of the other coax end, and the remaining connections form the terminals for the trap.

Benelec - Radio Communication Base Station, Marine, Cellular and Mobile antennas covering all bands between 2-6000MHz, Communication Accessories, Coaxial Cable, Coaxial Connectors and Accessories

ABR Industries - 50 Ohm Coaxial Cables, Assemblies, and Connector supplies.

Ecoflex USA - Manufacture of the famous Ecoflex Low Loss Coaxial Cable Series.

Voldatech - Voldatech Telecommunication & Networking Solutions, RF Coax cables and connectors manufacturer based in China

Teledao - Manufacturer of Grounding kits, cable, copper lugs, bus bars, brackets, lightning arrestors for coaxial feeder cable & fiber cable lightning protection & grounding

K2 modifications - General modifications applicable to any Elecraft K2

CAT cable schematic for FT 817 857 897 - To connect up your FT-817/857/897 to a PC you have a number of options. For the serial connection you can go ahead and obtain a CT-62 from YAESU. Alternatively you can make up your box with a level converter and cable using schematic in this page

Programming the Baofeng UV-3R - How to program memories on UV-3R using the prolific usb cable

Ham4Less - supply a full line of the highest quality amateur radio equipment availalble. Antennas, coax cables and switches, baluns, power poles

K9DUR Voice Keyer - Voice Keyer was specifically written to interface to PowerSDR via Virtual Audio Cable (VAC)

Cables - A basic article on audio cables, electrical wiring, cable lenght, data cables.

Fitting an N connector plug - Fitting N connectors to coax cable

IC-92 Programming Cable schematic - Homebrew ICOM IC-92 programming cable following this 12-pin connection schematic by KA0BBQ

Homemade OPC-474 cable - Homemade programming cable works with IC-E90, IC-E208,IC-E2820, IC-2100, IC-2200, IC-2720 IC-2725 IC-2820 and more by MW0GKX

IC-E80 Home made programming cable - Make an OPC-478 PC Cloning / CI-V cable, work with IC-2725, IC-2800, IC-2820 , IC-E80 By MW0GKX.

Yaesu cloning cables - Make a Yaesu cloning cable for Yaesu radios ft-847, ft-857, ft-23, ft-90 FT-1500, FT-1802, FT-2800, FT-2400, FT-2500

ICOM CI-V interface to RS232 cable - ICOM CI-V interface to RS232 using transistors, fits in DB9 case

Make a Yaesu CT-27A cloning cable - Make a Yaesu CT-27A cloning cable By Brian, MW0GKX.

Icom OPC-1529R programming cable - Home build an OPC-1529R cable, works with IC-91, IC-2200, IC-V82, IC-U82, ID-E880 by MW0GKX.