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5.3. Program Limitations
CW operations are possible, but keying using normal e-keys is not possible. Strings
entered using the keyboard are collated for transmit operations.
5.4. Limitations if Using USB Audio Functions
If the PC and TS-990S are connected via a USB cable, audio transmissions can be
transmitted using the USB audio function. However, in principle, there is a delay with USB
audio, so sound may be lost depending on the PC performance and load status. If using a
USB connection for audio transmissions on the host station, the delay due to network
traffic to the remote station is also added, so the delay is further increased.
If audio transmissions are connected via a USB connection, and if playing warning sounds
from the Windows or music and video on the PC, the sounds may not emit from the PC
speakers.
Furthermore, depending on the Windows sound settings, the transceiver DATA VOX
function settings, and the modulation path, audio may be modulated from the transceiver;
take care during PC operations and when playing music and video.
Depending on the combination of PC and sound functions, normal operations may be
disabled.
JVC KENWOOD does not offer support for customer PCs.
We recommend using an audio cable without using USB audio functions for KNS
operations. (Refer to "4.2. Connecting an Audio Cable
".)