Communications
- 443
- QRPproject
- Supplier of QRP kits from Hands, Small Wonder Labs, Oak Hill Research, Wilderness Radio and the German QRP club with warranty of functionality. [English and German]
- 448
- Amateur Electronic Supply
- Amateur radio equipment dealer. Product comparisons, downloadable catalog, propagation forecast, mailing list, and links.
- 449
- American MilSpec
- Supplier of surplus and collector's military radio communication equipment, and parts and accessories.
- 450
- Associated Radio
- Offers new and used equipment. Includes hours and order information. Located in Overland Park, Kansas.
- 452
- Columbia Electronics
- Various brands of military surplus transmitters sold, bought or traded. Located near Los Angeles.
- 453
- EMTECH
- Manufacturer of the NW series of QRP transceivers. Antenna tuners, ladder line insulator kits, antenna insulators.
- 454
- EleCraft
- Manufacturers of K-1 and K-2 QRP kits, and also offers HF and CW transceivers, pre-amps and antennas.