![]() Settings are similar to those mentioned in item #15 of Bob’s tutorial. It will most likely complain about the radio configuration – click OK to go to the settings dialog. This is done so we don’t inadvertently transmit while setting up WSJT-X. Change it from 100% to 15% (we may need to adjust it later): Reduce the input volumeīefore we do the last bit of configuration, please put your K4 in test transmit mode: I found it necessary to reduce this a lot so it doesn’t overpower the FT8 input. While we’re still in the Properties dialog for dialog, look at Input Settings section, specifically the Input Volume section. Select the > next to the device of the same name as above, e.g., 8- USB AUDIO CODEC:įor consistency, rename this one “K4 FT8 Input”, tap rename. Click “Sound” to go back to the previous menu. The control is very different from most of the ones in Windows (more like a modern phone setting). If successful, you should see the name changed in the green box: In it, I named my device “K4 FT8 Output” then click the “ Rename” box. In its properties, click rename underneath the name: (What you don’t want to do is select the radio button as this will designate all sound going to that.) Pick one of the “USB AUDIO CODEC” and select the green arrow on the right. In the top half of the screen is the output devices. On Windows 11: run the Sound Settings application (Tap windows key and start typing “Sound settings’): Sound Settings App Windows 10 Input Device, Screenshot courtesy of Dennis N6DD. ( There is a tutorial here.) Repeat for the output device. Choose your input device and then click on Device Properties. On Windows 10, run the sound application. For FT8 purposes, I find it helpful to assign a more meaningful name. Unfortunately, Windows 11/10 will generate a generic name like “x – USB AUDIO CODEC” where “x” is a number. The K4 gives you two input and two output devices. When done, the dialog will look like this: Click OK to save In the Port Settings dialog, click on Advanced… Advanced In the menu, you will see the Manufacturer shown as FTDI and the location “on USB Serial Converter A”: Cool, we’re looking at the correct deviceĪt the top of this dialog is “Port Settings” – click on that tab. Select the first device (in the example above, COM6, then right click and select Properties: Right-click on the device and select properties For this tutorial, we’re going to adjust two windows defaults. If you jumped the gun and plugged the cable in before running device manager, remove the cable, wait a few seconds, note the setting, then insert it again and note which devices show up.īob () has a lot of great information on USB ports that is beyond the scope of this tutorial, and you should read his presentation. In the example below, COM6 and COM7 are the K4 virtual USB devices: New devices recognized! ![]() There will be some weird blinking of this application, and you should see two new devices pop up. You should see something a list of devices. For now, scroll down to the “ Ports (COM & LPT)” section. ![]() Tap the Windows key, and start typing “device” – you should see this pop up: Device manager as it appears in the start menuĬlick the icon and you’ll see an exhaustive list of logical devices that Windows lists. Ideally, before you plug the K4’s USB cable in, start the device manager. This will provide some guidance at how to identify that number. Unfortunately, the port numbers will change depending on the physical socket, and most programs’ use that number. When you first plug the USB cable in, Windows will assign the K4’s two virtual serial devices to a COM port.
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