USB to Serial Adapter Troubleshooting
- Plug the supplied KXUSB USB to Serial Adapter into a USB port on your computer
- Plug the 3.5 mm plug of the KXUSB into your KH1's ACC socket.
Make sure that the plug is completely inserted.
- Open "Device Manager"
- On Windows 8 and 10, right click the Start menu and choose "Device Manager"
- On others Windows versions:
- Open the "Start" menu
- Right click "My Computer" or "Computer"
- Select "Manage"
- In the Computer Management left pane, select "Device Manager"
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In the right pane, select the "+" or ">" next to "Ports (COM & LPT)" to expand the list of COM ports.
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Double click the COM port entry for your KXUSB Adapter to show its device property sheet.
Your
Elecraft KXUSB USB to Serial Adapter
uses an FTDI chipset.
- Verify that the USB to Serial Adapter's device driver is up-to-date.
- Device driver updates are often available from Microsoft Update when you first plug the KXUSB into your computer.
Be patient, this can take several minutes.
- You may obtain current FTDI device drivers from the FTDI website,
https://www.ftdichip.com/Drivers/VCP.htm
- Try a different USB port on your computer.
- Try a different USB to Serial Adapter.
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Try a different computer.
Some combinations of USB to Serial Adapter and USB port are more reliable than others.
For example, some laptop computers may not provide sufficient power to USB devices for reliable communications.
- One user reported that his USB to Serial Adapter did not work well when connected through a USB Hub.
- Some users have found better results with separately powered USB hubs rather than those that receive power from a USB port.
- A laptop computer's USB port may work more reliably if the laptop is powered by a power supply rather than its batteries.
- Neither Elecraft nor microHAM recommend loading firmware through the microHAM Router (the PC software used with microHAM USB devices).