Optoelectronics Inc of Fort Lauderdale, Florida has a 10Hz to 2.4GHz Universal Frequency Counter-Timer in the form of a card for personal and laptop computers using Windows 3.0 as a control panel and display window: called PC-10 and priced at $335, it tunes radio receivers such as the ICOM R7000, and accepts any input signal of 10mV or above from sub-audio to 2.4GHz, determines its frequency and displays it with up to a 10-digit screen resolution.
