Hellschreiber beacon project
- This web site describes a low power beacon system to be used for propagation and performance tests on the lower bands. The beacon offers CW (on-off keyed) modes and FSK modes; the traditional Morse ID mode, and Feld-Hell, another highly noise immune CW mode.
Electriduct - Cable protection products
- Offers cable protectors, cord covers, cable guards, management products, solutions and supplies. Protect your cable, wires, and hoses from foot, small carts, and vehicular traffic with the trusted Linebacker Series of Cord Covers.
The AM stereo page
- A comprehensive listing of AM Stereo radio stations in North America with listening tips, news, AM mono to stereo radio conversion information, sources of AM Stereo receivers and a history of AM Stereo broadcasting.