Icom IC-7300 Reference Manual

TIPS FOR THE USB PORT SETTINGS
7
SECTION 3 WHY TWO VIRTUAL COM PORTS ARE
RECOGNIZED ON ONE PHYSICAL USB PORT
Applicable products: IC-7100, IC-7851, IC-9100 (as of March 2016)
Two COM ports will be recognized when connecting the above transceivers to a PC that the specified USB
driver has been installed on, because two internal circuits are connected through a built-in USB HUB.
Therefore, these two internal circuits have been recognized as two ports on the PC.
For example, the optional RS-BA1 automatically selects USB1 and uses the circuit for remote control. If
RTTY/logging software is assigned to the USB 2’s COM port, both the RS-BA1 and RTTY/logging software
can simultaneously be operated.
Figure 3-1 USB circuit block diagram
Figure 3-2 Device Manager screen
USB
HUB
Serial-USB
Converter
Serial-USB
Converter
CPU
[USB]
PC recognizes the USB 1 COM port.
PC recognizes the USB 2 COM port.

Icom IC-7300 Specifications

General

Product type	Portable CB radio
Product color	Black
Housing material	Steel
Input voltage	13.8 V
Microphone included	Yes
Output power	100 W
Frequency range	0.5 - 70 MHz
Channels quantity	101 channels
Compatible products	AH-2B; AH-4; AH-5NV; AH-710; AH-740; CT-17; HM-219; MB-118; MB-123; OPC-2321; OPC-420; OPC-599; PS-126; RC-28; SM-30; SM-50; SP-23; SP-33; SP-34; SP-35; SP-35L; SP-38; SP-41;
Display type	LCD

Weight and Dimensions

Depth	238 mm
Width	240 mm
Height	94 mm