On 04/07/2018 00:39, Neil Zampella wrote:
I don't think that Hamlib or Omnirig uses UDP packets to control the
rig, its more a bidirectional serial interface, sending ascii or
hex. That said, I know that DX Commander can control the IC-7700
using a USB conection.
Neil,
USB connections to rigs for CAT control are almost always by the rig
using a CDC class virtual device that emulates an RS-232 serial port
(https://en.wikipedia.org/wiki/USB_communications_device_class). As far
as the PC end is concerned it is virtually identical to a real physical
serial port, the main difference being that it must be powered up to
exist, unlike a physical serial port which doesn't.
As far as Hamlib is concerned, it is capable of Internet protocol serial
communication for some rigs that support that by TCP/IP connections, the
protocol is usually rig specific and needs a custom driver. One example
of this is the FlexRadio series of rigs and associated SDR software.
73
Bill
G4WJS.
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