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Temperature Compenstated Crystal (TCXO) version of our Universal Impulse Driver (link to standard crystal version).
Q: What is a TCXO and what does it do?
A: A TCXO is a temperature compensated crystal. The regular crystal found in most quartz clocks is not compensated and will drift with changes in temperature. The TCXO has a sensor which reads the ambient temperature and will compensate for this natural drift, making it more accurate.
Q: How accurate is it compared to a regular crystal?
A: A regular crystal, depending on temperature variations, will drift by several minutes per year. The TCXO version of our impulse driver is accurate to about 10 seconds per year, and in some cases down to 5 seconds per year!
Q: It can't be THAT accurate, aren't TCXOs accurate to about a minute a year?
A: The manufacturer of the TCXO states a 1 minute per year accuracy rate. We take this one step further and characterize the error rate of the crystals. We sort the crystals by batch number and run an accuracy check on each batch using state of the art timing equipment. While the whole production line might have a large variation, individual batches vary by only a slight amount. We program this corection value into the impulse driver, the end result being a very accurate clock usually found only in expensive lab equipment.