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K2X HRD PTT interface

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Jim Sr Sturges

K2X HRD PTT interface

First post. Connecting KX2 to HRD on Surface Pro 3 using provided ACC-USB
cable, and audio via cables to a USB sound dongle.

PSK-31 using USB mode on 20M: Receive works great. When I transmit, TX
light comes on, data is sent, but TX light stays on even though transmit
power drops to zero.

Would like to have transmitter stop!

Anybody have the majick mouth-holding tricks?

Thanks in advance and 73,

Jim N3SZ
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Ian Kahn, KM4IK

Re: K2X HRD PTT interface

Are you using macros in DM780? Do you have the <stop> command in the
macros, if you are?

73 de,

--Ian
Ian Kahn, KM4IK
Roswell, GA EM74ua
[hidden email]
10-10 #74624 North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468

On Tue, May 2, 2017 at 2:26 PM, Jim Sr Sturges <[hidden email]> wrote:

> First post. Connecting KX2 to HRD on Surface Pro 3 using provided ACC-USB
> cable, and audio via cables to a USB sound dongle.
>
> PSK-31 using USB mode on 20M: Receive works great. When I transmit, TX
> light comes on, data is sent, but TX light stays on even though transmit
> power drops to zero.
>
> Would like to have transmitter stop!
>
> Anybody have the majick mouth-holding tricks?
>
> Thanks in advance and 73,
>
> Jim N3SZ
> ______________________________________________________________
> 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]
>

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Jim Sr Sturges

Re: K2X HRD PTT interface

Yes, Macros are in use, and yes, <stop> command is the last item in the
macro.

73

On Tue, 2 May 2017 at 14:36 Ian Kahn <[hidden email]> wrote:

> Are you using macros in DM780? Do you have the <stop> command in the
> macros, if you are?
>
> 73 de,
>
> --Ian
> Ian Kahn, KM4IK
> Roswell, GA EM74ua
> [hidden email]
> 10-10 #74624 North Georgia Chapter #2038
> PODXS 070 #1962
> K3 #281, P3 #688 KAT500 #860, KPA500 #1468
>
> On Tue, May 2, 2017 at 2:26 PM, Jim Sr Sturges <[hidden email]>
> wrote:
>
>> First post. Connecting KX2 to HRD on Surface Pro 3 using provided ACC-USB
>> cable, and audio via cables to a USB sound dongle.
>>
>> PSK-31 using USB mode on 20M: Receive works great. When I transmit, TX
>> light comes on, data is sent, but TX light stays on even though transmit
>> power drops to zero.
>>
>> Would like to have transmitter stop!
>>
>> Anybody have the majick mouth-holding tricks?
>>
>> Thanks in advance and 73,
>>
>> Jim N3SZ
>>
> ______________________________________________________________
>> 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: K2X HRD PTT interface

In reply to this post by Jim Sr Sturges

Jim,

Are you using PTT and VOX both? If so, try only one.
With HRD, you can set PTT via command (no physical connection to the
hardware PTT line). That has always worked well for me, but I have not
tried it with the KX2.

73,
Don W3FPR

On 5/2/2017 2:26 PM, Jim Sr Sturges wrote:
> First post. Connecting KX2 to HRD on Surface Pro 3 using provided ACC-USB
> cable, and audio via cables to a USB sound dongle.
>
> PSK-31 using USB mode on 20M: Receive works great. When I transmit, TX
> light comes on, data is sent, but TX light stays on even though transmit
> power drops to zero.
>
> Would like to have transmitter stop!
>
______________________________________________________________
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
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Jim Sr Sturges

Re: K2X HRD PTT interface

Don,

Thanks. Gave up and used Vox. Can't see any ALC limiting, but can hear
outgoing signal on another radio. Still tweaking and haven't had first QSO
yet, but hope springs always!

73,

Jim N3SZ
On Tue, May 2, 2017 at 3:11 PM Don Wilhelm <[hidden email]> wrote:

> Jim,
>
> Are you using PTT and VOX both? If so, try only one.
> With HRD, you can set PTT via command (no physical connection to the
> hardware PTT line). That has always worked well for me, but I have not
> tried it with the KX2.
>
> 73,
> Don W3FPR
>
> On 5/2/2017 2:26 PM, Jim Sr Sturges wrote:
> > First post. Connecting KX2 to HRD on Surface Pro 3 using provided ACC-USB
> > cable, and audio via cables to a USB sound dongle.
> >
> > PSK-31 using USB mode on 20M: Receive works great. When I transmit, TX
> > light comes on, data is sent, but TX light stays on even though transmit
> > power drops to zero.
> >
> > Would like to have transmitter stop!
> >
>

Don Wilhelm

Re: K2X HRD PTT interface

Jim,

I assume you have the KX2 (not the K2X).

For proper operation, you must have an indication on the ALC meter. 4
bars solid with the 5th bar flashing.
If you do not achieve that condition, the power output will be erratic.
Note well, that is the "NO ALC" point for the KX2, KX3, K3 and K3S. ALC
starts at the 5th bar - the other 4 bars are there to allow you to
adjust the audio gain.

The usual problem is not enough audio gain - If you have the KX2 Mic
Gain at a very high setting, that may be too much - I know the KX3
reduces the audio if there is too much, and I assume the KX2 does also.
Start with the MIC gain low and in the computer (and HRD), set the
soundcard speaker (or line) to about 50%.
Then turn up the MIC Gain until you have the proper number of ALC bars.

Set the desired power on the KX2 and operate.
Ignore the common internet advice to adjust the power with the audio
level, it does not work well with Elecraft gear.

73,
Don W3FPR

On 5/2/2017 4:27 PM, Jim Sr Sturges wrote:
> Don,
>
> Thanks. Gave up and used Vox. Can't see any ALC limiting, but can hear
> outgoing signal on another radio. Still tweaking and haven't had first
> QSO yet, but hope springs always!
>

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Nr4c

Re: K2X HRD PTT interface

In reply to this post by Jim Sr Sturges

The "magic" is to check carefully to find ALL ways in which you have setup for PTT.

This is a common problem and I'll bet you at least two PTT options set. The software turns one off and stops sending data. But the other is controlled by something else and didn't "get the memo".

Sent from my iPhone
...nr4c. bill

> On May 2, 2017, at 2:26 PM, Jim Sr Sturges <[hidden email]> wrote:
>
> First post. Connecting KX2 to HRD on Surface Pro 3 using provided ACC-USB
> cable, and audio via cables to a USB sound dongle.
>
> PSK-31 using USB mode on 20M: Receive works great. When I transmit, TX
> light comes on, data is sent, but TX light stays on even though transmit
> power drops to zero.
>
> Would like to have transmitter stop!
>
> Anybody have the majick mouth-holding tricks?
>
> Thanks in advance and 73,
>
> Jim N3SZ
> ______________________________________________________________
> 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]