CMP/Power/Mon knob response

[w0mu]

The response of the knob is poor especially turning it at slow speeds.
Meaning that I have a tough time adjusting the power or the compression to
what I want.  It works better turning it faster.  Anyone else seen this?  

"A slip of the foot you may soon recover, but a slip of the tongue you may
never get over." Ben Franklin

______________________________________________________________
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

[Julian, G4ILO]

W0MU Mike Fatchett wrote

The response of the knob is poor especially turning it at slow speeds.
Meaning that I have a tough time adjusting the power or the compression to
what I want.  It works better turning it faster.  Anyone else seen this?

Yes, I first noticed it after the firmware started using the front panel flash memory, though that may be a coincidence. I think the response time depends on how busy the processor is, in other words, what it is doing at the time. Some computer logging programs poll the radio excessively (in my opinion, for example ten times a second) to get the current frequency, mode, etc. If you are running such software at the same time as you are twiddling the knobs, that could account for what you are seeing.

[wayne burdick]

Mike,

This must be a defective incremental encoder. They should work
perfectly, all the time, at any rotation speed. You should request a
replacement.

73,
Wayne
N6KR

W0MU Mike Fatchett wrote:

> The response of the knob is poor especially turning it at slow speeds.
> Meaning that I have a tough time adjusting the power or the
> compression to
> what I want.  It works better turning it faster.  Anyone else seen
> this? ---

http://www.elecraft.com

______________________________________________________________
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

[Bill N2BC]

Julian, G4ILO wrote:

>
> W0MU Mike Fatchett wrote:
>  
>> The response of the knob is poor especially turning it at slow speeds.
>> Meaning that I have a tough time adjusting the power or the compression to
>> what I want.  It works better turning it faster.  Anyone else seen this?
>>
>>    
> Yes, I first noticed it after the firmware started using the front panel
> flash memory, though that may be a coincidence. I think the response time
> depends on how busy the processor is, in other words, what it is doing at
> the time. Some computer logging programs poll the radio excessively (in my
> opinion, for example ten times a second) to get the current frequency, mode,
> etc. If you are running such software at the same time as you are twiddling
> the knobs, that could account for what you are seeing.
>
> -----
> Julian, G4ILO. K2 #392  K3 #222.
> http://www.g4ilo.com/ G4ILO's Shack   http://www.g4ilo.com/blog.html G4ILO's
> Blog    http://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3
>  

No problem here /w SN 929 & 2.82 FW.  I have some software that polls
the K3 with up to 20 commands as fast as it can respond & see no
difference in any of the encoders, turning them fast or slow, with and
without the serial port activity...

73, Bill  N2BC


______________________________________________________________
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

[w0mu]

This only happens on sn 2745  
SN 658 worked flawlessly

"A slip of the foot you may soon recover, but a slip of the tongue you may
never get over." Ben Franklin
-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Julian, G4ILO
Sent: Friday, February 27, 2009 9:35 AM
To: [hidden email]
Subject: Re: [Elecraft] CMP/Power/Mon knob response




W0MU Mike Fatchett wrote:
>
> The response of the knob is poor especially turning it at slow speeds.
> Meaning that I have a tough time adjusting the power or the
> compression to what I want.  It works better turning it faster.  Anyone
else seen this?
>
Yes, I first noticed it after the firmware started using the front panel
flash memory, though that may be a coincidence. I think the response time
depends on how busy the processor is, in other words, what it is doing at
the time. Some computer logging programs poll the radio excessively (in my
opinion, for example ten times a second) to get the current frequency, mode,
etc. If you are running such software at the same time as you are twiddling
the knobs, that could account for what you are seeing.

-----
Julian, G4ILO. K2 #392  K3 #222.
http://www.g4ilo.com/ G4ILO's Shack   http://www.g4ilo.com/blog.html G4ILO's
Blog    http://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3
--
View this message in context:
http://n2.nabble.com/CMP-Power-Mon-knob-response-tp2396523p2396672.html
Sent from the Elecraft mailing list archive at Nabble.com.

______________________________________________________________
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

______________________________________________________________
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

[Julian, G4ILO]

Bill Coleman N2BC wrote

Julian, G4ILO wrote:
>
> W0MU Mike Fatchett wrote:
>  
>> The response of the knob is poor especially turning it at slow speeds.
>> Meaning that I have a tough time adjusting the power or the compression to
>> what I want.  It works better turning it faster.  Anyone else seen this?
>>
>>    
> Yes, I first noticed it after the firmware started using the front panel
> flash memory, though that may be a coincidence. I think the response time
> depends on how busy the processor is, in other words, what it is doing at
> the time. Some computer logging programs poll the radio excessively (in my
> opinion, for example ten times a second) to get the current frequency, mode,
> etc. If you are running such software at the same time as you are twiddling
> the knobs, that could account for what you are seeing.
>
No problem here /w SN 929 & 2.82 FW.  I have some software that polls
the K3 with up to 20 commands as fast as it can respond & see no
difference in any of the encoders, turning them fast or slow, with and
without the serial port activity...

I was referring to a perceptible delay between turning the knob and seeing the value change on the display. Upon re-reading Mike's post, it seems possible he is experiencing a different symptom, which may be due to a faulty encoder as Wayne suggested.