Elecraft

on PSK the ALC bar setting is no longer stable -- ideas why?

Classic

List

Threaded

4 messages Options

jsdroyster

on PSK the ALC bar setting is no longer stable -- ideas why?

Hello to all! Our KX3 that Larry uses for PSK has mysteriously developed an unstable ALC bar setting.
If we use the mic gain to set it for 4 bars while transmitting, then on the next transmission, without our having touched any controls, it goes back up to 6 or 7 bars.
Any ideas what could have changed to make this happen?
We must have inadvertently changed something but I don't know what.
THANKS!
Julie KT4JR and Larry K4MWE
______________________________________________________________
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-4

Re: on PSK the ALC bar setting is no longer stable -- ideas why?

Julie,

Check to be certain Compression is set to zero.
If it was not set to zero, you should also re-adjust the audio level
(either with the computer soundcard level settings or the KX3 Mic Gain).

73,
Don W3FPR

On 5/24/2014 9:28 AM, [hidden email] wrote:

> Hello to all! Our KX3 that Larry uses for PSK has mysteriously developed an unstable ALC bar setting.
> If we use the mic gain to set it for 4 bars while transmitting, then on the next transmission, without our having touched any controls, it goes back up to 6 or 7 bars.
> Any ideas what could have changed to make this happen?
> We must have inadvertently changed something but I don't know what.
> THANKS!
> Julie KT4JR and Larry K4MWE
> ______________________________________________________________
> 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]

Rick WA6NHC

Re: on PSK the ALC bar setting is no longer stable -- ideas why?

And if you're using audio driven PSK, different tones can produce different levels.

73,
Rick wa6nhc

Tiny iPhone 5 keypad, typos are inevitable

> On May 24, 2014, at 6:48 AM, Don Wilhelm <[hidden email]> wrote:
>
> Julie,
>
> Check to be certain Compression is set to zero.
> If it was not set to zero, you should also re-adjust the audio level (either with the computer soundcard level settings or the KX3 Mic Gain).
>
> 73,
> Don W3FPR
>
>> On 5/24/2014 9:28 AM, [hidden email] wrote:
>> Hello to all! Our KX3 that Larry uses for PSK has mysteriously developed an unstable ALC bar setting.
>> If we use the mic gain to set it for 4 bars while transmitting, then on the next transmission, without our having touched any controls, it goes back up to 6 or 7 bars.
>> Any ideas what could have changed to make this happen?
>> We must have inadvertently changed something but I don't know what.
>> THANKS!
>> Julie KT4JR and Larry K4MWE
>> ______________________________________________________________
>> 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]

Phil Wheeler-2

Re: on PSK the ALC bar setting is no longer stable -- ideas why?

In reply to this post by Don Wilhelm-4

They may not be using the DATA mode; many folks
use USB for PSK31 -- but then compression can be
an issue.

Come to think of it, it would be good to know just
how they are set up -- which mode, which modem
(e.g., SignaLink usb), etc.

Phil w7ox

On 5/24/14, 8:37 AM, Walter Underwood wrote:

> Compression should not matter, because that is disabled in DATA A mode.
>
> I'd save the config, EEINIT, and reload. If that doesn't fix it, ask [hidden email]
>
> wunder
> K6WRU
> http://observer.wunderwood.org/
>
> On May 24, 2014, at 6:48 AM, Don Wilhelm <[hidden email]> wrote:
>
>> Julie,
>>
>> Check to be certain Compression is set to zero.
>> If it was not set to zero, you should also re-adjust the audio level (either with the computer soundcard level settings or the KX3 Mic Gain).
>>
>> 73,
>> Don W3FPR
>>
>> On 5/24/2014 9:28 AM, [hidden email] wrote:
>>> Hello to all! Our KX3 that Larry uses for PSK has mysteriously developed an unstable ALC bar setting.
>>> If we use the mic gain to set it for 4 bars while transmitting, then on the next transmission, without our having touched any controls, it goes back up to 6 or 7 bars.
>>> Any ideas what could have changed to make this happen?
>>> We must have inadvertently changed something but I don't know what.
>>> THANKS!
>>> Julie KT4JR and Larry K4MWE
>>> ___________________________