Ham Radio's Influence on the Commercial Market. This material is posted here with permission of the IEEE and the author. Internal or personal use of this material is permitted. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. In the mid and late s, amateur radio operators were experimenting in great numbers with crystal control of radio transmitters. At the time, most amateurs used home built transmitters made from a combination of purchased and home made parts.

For more than 50 Years, Bomar has been supplying high quality frequency control products that meet or exceed customer expectations. They offer wide frequency ranges and voltages of 5. TCXO is an acronym for temperature compensated crystal oscillator. Typically a TCXO employs a thermistor network to generate a correction voltage, which reduces the frequency variation over temperature. SMD crystals help the basic functions of all the above mentioned oscillators, and each of those oscillators have daily applications in everyday life.

Before frequency synthesis, became popular, this was the best way to set an accurate frequency. At one time, these were commonly available, and there were many places to order custom cut crystals. Well, that is, until now.