CommTest - a program to test Com ports and cables when it comes to plugged in radios. Ensure that your PC has at least one free COM port. For example, if your PC has two but one is used for the mouse and the other is used internally to drive a modem then you have none free! You should purchase and install a serial port card in your PC.
They are cheap and available at all computer stores. Connect the instrument via its cable to a free COM port on your PC and turn it on
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