Program Limitations; Limitations If Using Usb Audio Functions - Kenwood TS-990S Setting Manual

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
22
Cable".)