Packet with Soundcard
- Sound card packet by NM5RM. This amateur radio web site explains how to use the AGWPE utility program to send and receive packet using the sound card or sound chip of your PC instead of a traditional TNC or radio modem
OscarDelta IP Over AX.25
- This is a packet radio software developed for amateur radio operators to provide IP communications. You can chat, send/receive e-mail, surf the web and so on via radio depending on your bandwidth. You don't need a TNC. You might have all of TNC features via SoundCard using SoundModem.
VHF Linear Amplifier by SV1BSX
- There is not a personal design on this page, just I've transfered useful notes from PHILIPS RF Bipolar Transistors - Data HandBook
about BLY89C VHF Power transistor, which is very popular among Amateur Radio homebrewers