- Signatec manufactures pc based data acquisition waveform digitizers pci daq boards, digital signal processing pci dsp boards, waveform signal generator pci dac boards, and real time waveform recording products for the signal technology market.
Repeater and Broadcast Transmitter Database
- Searchable database of amateur repeaters and broadcast transmitters. The database covers the fifty U.S. states, the District of Columbia, and the ten Canadian provinces.
Cupeles Electronics LLC
- Two way radio communication services for Kenwood Icom Yaesu radio and ameritron drake cliperton henry heathkit amp yaesu kenwood linear amplifiers based in Harrisburg, PA by WB3M
- The Voice Keyer is a free Windows based voice keyer. It is very easy to use and it handles up to seven messages. By connecting your computer soundcard to your radio it's possible to just press a button and the computer will CQ for you, to spare your voice. It can also PTT your radio via the LPT port by SM3WMV
Sound Card Interface by VK6YSF
- Presented here is a transceiver to computer sound card interface complete with automated transmit key function. A sound card interface is simply the audio coupling of a computer soundcard and a transceiver to allow various computer applications that send and receive SSTV, RTTY, PSK31 and other similar modes based on soundcard generated signals.