Here you will find modifications of many types of HAM radios, microphones, power supplies, modems etc. You can find how to modify a radio to receive and transmit out of range, you can find how to modify a radio to use high speed packet modems, and how to modify the radio/modem to get better performance.
Right now the database contains 5777 articles. Use the navigation menu on the left side to easy find your equipment. You can also use the search option, it is very fast. See the search help link for more information.