[Elecraft] Upgrade to KIO3B?

[Joe Subich, W4TV]

> My reading of the available info about the KIO3B is that when the USB
> port in the KIO3B is connected to a radio, the line in, line out
> ports will be disabled. How would I make my setup work with the
> KIO3B?

That is not correct.  The K3S analog "Line Out" audio goes to both the
input of the USB CODEC and the Line Out jack at all times.  Connecting
a plug to the Line In jack *disconnects* the output of the USB CODEC
and uses analog audio instead of the audio from the internal USB sound
card (USB CODEC).

The USB "serial port" can be used independently of the USB sound card
by making the appropriate selections in the configuration menu.

You could eliminate one USB sound card (for digital modes) and the USB
to serial converter in your SO2V configuration by using the KIO3B but I
doubt that you will see any increase in performance if the USB sound
card is of reasonable quality.

73,

    ... Joe, W4TV


On 12/26/2015 11:42 AM, Larry Libsch wrote:
> Group -
>
>          I'm wondering whether an upgrade to KIO3B would be a step
> forward or a step backward for me. My current setup, which works FB,
> uses two outboard USB sound cards. One outboard sound card runs CW
> Skimmer using a Softrock SDR, K3IF out, and one laptop USB port. The
> second sound card does digital modes and, having left and right
> channels, allows me to work RTTY SO2V in N1MM+. It uses the K3 line in
> and line out ports and a second laptop USB port. A third laptop USB
> connects the laptop to the K3 RS232 port for radio  control and logging.
> LP Bridge creates the virtual com ports that make the K3 logging
> software and sound cards work together. I use DXLab for routine logging,
> N1MM+ for contest logging.
>
>          My reading of the available info about the KIO3B is that when
> the USB port in the KIO3B is connected to a radio, the line in, line out
> ports will be disabled. How would I make my setup work with the KIO3B?
>
>                          K4KGG, Larry
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