Transceiver to Computer Interface

Here’s an interface you can build that reduces the risk of RFI interrupting your computer-to-transceiver communications and eliminates the need to adjust computer sound settings every time you change modes.

ALAN HOFFMASTER

Many modern-day amateur radio programs use a single USB cable between the transceiver and computer to transfer three basic types of information; audio signals which can include SSB, RTTY, digital or CW signals, critical transceiver control and polling data, and transceiver transmit activation signals. Any RFI (radio frequency interference) in your radio room could disrupt the data flow on any one of these signals, necessitating a program reboot or, worst case, a system reboot. One purpose of this circuit design is to greatly reduce the chance of RFI interrupting the data flow by separating the three specific signals into separate pathways between the transceiver and the computer; the audio signals, the transceiver control and polling data, and the transmit enable signal. Another purpose of this interface is to eliminate the…

You're reading a preview of

CQ Amateur Radio (Digital) - 1 Issue, October 2023

DiscountMags is a licensed distributor (not a publisher) of the above content and Publication through Zinio LLC. Accordingly, we have no editorial control over the Publications. Any opinions, advice, statements, services, offers or other information or content expressed or made available by third parties, including those made in Publications offered on our website, are those of the respective author(s) or publisher(s) and not of DiscountMags. DiscountMags does not guarantee the accuracy, completeness, truthfulness, or usefulness of all or any portion of any publication or any services or offers made by third parties, nor will we be liable for any loss or damage caused by your reliance on information contained in any Publication, or your use of services offered, or your acceptance of any offers made through the Service or the Publications. For content removal requests, please contact Zinio.