Elecraft

Upgraded K3 and MMTTY

Classic

List

Threaded

3 messages Options

Larry P. Greenberg

Upgraded K3 and MMTTY

I recently upgraded my K3 with the new K103B that provides a USB connection, eliminates the need for an external PC soundcard and retains all of the original RS232 functionality. I have an Edgeport USB to RS232 four port box providing RS232 connectivity to the K3, the amplifier, and rotator control. It seems to be working as DX4Win controls the radio, the rotator, and sends CW. I cannot get MMTTY to send RTTY or even execute the PTT function. It seems like I have not set-up MMTTY correctly. I am looking for someone who may be familiar with the new K3 Interface boards (K3s functionality) and MMTTY. My error message is Cannot Open COM3 (COM port used to control the K3 and send CW which works fine. I cannot select additional soundcards such as CODEC from the soundcard menu under set-up.

Larry, WA9MAG
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Don Wilhelm

Re: Upgraded K3 and MMTTY

Larry,

I think you are getting confused by the RS-232 connections and the KIO3B.
First, there should be only one COM port connected to the K3 - whether
that be the COM port assigned to the USB connection or the COM port
assigned to your Edgeport USB to Serial Converter port. You can use only
one at a time - it sounds like you are trying to use both.

In addition, only one application can use a COM port at one time.
If you have DX4Win working on COM3, then MMTTY cannot also use that same
port.
You must close DX4Win to allow MMTTY to use that port.
The alternative is to use a virtual port application (such as LP-Bridge)
to connect to the K3 and then configure the various applications to
connect to the virtual ports of LP-Bridge. COM-O-COM offers similar
virtual port capability.

73,
Don W3FPR

On 8/19/2016 5:34 PM, Larry P. Greenberg wrote:

> I recently upgraded my K3 with the new K103B that provides a USB connection, eliminates the need for an external PC soundcard and retains all of the original RS232 functionality. I have an Edgeport USB to RS232 four port box providing RS232 connectivity to the K3, the amplifier, and rotator control. It seems to be working as DX4Win controls the radio, the rotator, and sends CW. I cannot get MMTTY to send RTTY or even execute the PTT function. It seems like I have not set-up MMTTY correctly. I am looking for someone who may be familiar with the new K3 Interface boards (K3s functionality) and MMTTY. My error message is Cannot Open COM3 (COM port used to control the K3 and send CW which works fine. I cannot select additional soundcards such as CODEC from the soundcard menu under set-up.
>
> Larry, WA9MAG
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

Richard Ferch-2

Re: Upgraded K3 and MMTTY

In reply to this post by Larry P. Greenberg

If you are using AFSK for RTTY and controlling PTT via a method such as rig
control or VOX, Don's advice about only one COM port applies. The only COM
port you need is for rig control, and the KIO3B simply allows you to
replace whatever you used previously with a direct USB connection to the
radio.

However, if you are using FSK from MMTTY (or even if you are using AFSK but
have chosen for some reason to use MMTTY's PTT & FSK port for PTT control
from MMTTY), there is a second serial port involved, for FSK (and possibly
PTT) keying. The KIO3B's USB connection does not have anything to do with
this.

In MMTTY, the PTT & FSK Port that you configure under the TX tab in the
MMTTY Setup window is not the same serial port you use for rig control.
This is a separate serial port with keying circuit(s) for FSK (normally
connected to TxD) and PTT (either RTS or DTR) connected to the K3's ACC
connector. You do not use the serial port that is created by the driver for
the KIO3B as the PTT & FSK port in MMTTY.

MMTTY also offers some minimal rig control capabilities, using a serial
port configured using the "Radio command" button in the same area of the
setup window. This must be a different serial port from the FSK & PTT port.
If you are not doing rig control from some other application (such as
DX4Win), then you can use MMTTY's elementary rig control capabilities, and
for that you can use the serial port associated with the KIO3B's serial
adapter.

You also mentioned difficulties in opening the audio codec in the KIO3B.
This should show up in the list of sound cards under the SoundCard tab in
MMTTY. Note that if there is anything plugged into the Line In jack on the
KIO3B, the internal audio codec in the KIO3B will be disabled. It's an
either/or - either use the codec in the KIO3B, or use a separate sound
card, possibly inside the PC, connected to the K3's Line In jack.

73,
Rich VE3KI

On 8/19/2016 5:34 PM, Larry P. Greenberg wrote:

> I recently upgraded my K3 with the new K103B that provides a USB connection, \
> eliminates the need for an external PC soundcard and retains all of the original \
> RS232 functionality. I have an Edgeport USB to RS232 four port box providing RS232 \
> connectivity to the K3, the amplifier, and rotator control. It seems to be working \
> as DX4Win controls the radio, the rotator, and sends CW. I cannot get MMTTY to \
> send RTTY or even execute the PTT function. It seems like I have not set-up MMTTY \
> correctly. I am looking for someone who may be familiar with the new K3 Interface \
> boards (K3s functionality) and MMTTY. My error message is Cannot Open COM3 (COM \
> port used to control the K3 and send CW which works fine. I cannot select \
> additional soundcards such as CODEC from the soundcard menu under set-up.
> Larry, WA9MAG