[K3] [Elecraft] K3: 1. Loud audio blast on power up 2. Main/SUB balance

[Enno, PF5X]

Hi,

Just loaded F/W 2.72/1.98 with the "Send all firmware" option (so including
data tables). The short audio blast is still there if you are tuned to a
signal when switching on the K3. It really hurts your ears as it seems that
for this short period the AGC is not yet ON.

Any fixes planned for this (change boot order in DSP such that AGC assumes a
signal being present until the RX really starts to receive) ??

BTW. The updated action of LINE OUT=NOR now with outputting monitor audio
during TX is great.

I have the set the CONFIG:SUB AF to BALANCE. When looking to the monitor VU
meters on the microKEYER router software it appears that the SUB output is
lower than the MAIN output with the balance knob in the 12 o'clock position
(after equalizing both main and sub with double tapping A>B). This is effect
is also audible (~6dB difference).

Any cure for that ??


-- Enno, PF5X 



Alexandr Kobranov wrote:
> 
> Hello John,
> 
> it is tested here in OK-land (not on mine unit but on friend´s one) 
> that if you can cure there is need to send only "DSP1" plus "DSP data 
> tables" again. No full package again, only DSP and tables. So uncheck 
> the rest of modules in K3 Utility and go....
> 
> You will see result, here it was solution.
> 
> Let us know...
> 
> 73!
> L. -dst-
> 
> 
> John E. Reiser napsal(a):
>> I noticed recently that on power up my K3 makes a noise for a fraction of
>> a
>> second.  It sounds like background atmospheric noise as it would sound
>> with
>> the SSB filter active, even though the radio was last powered off with a
>> CW
>> filter set.  I don't remember exactly when this behavior began, but it
>> seems
>> that it was in the last few beta firmware releases.  In every other
>> respect
>> my K3 behaves normally.
>> 
>> Obviously, this is no big deal.  However, I did try reloading the latest
>> beta version, as suggested on this reflector.  I always use "Send All
>> Firmware to K3", which reloads the data tables.  It didn't help.
>> 
>> Could it be that recent firmware versions impose a slight delay before
>> the
>> filter selection stored on power down is implemented on power up?
>> 
>> John, W2GW
>> 
>> 
>> 
>> -----Original Message-----
>> From: elecraft-bounces at mailman.qth.net
>> [mailto:elecraft-bounces at mailman.qth.net]On Behalf Of Dick Dievendorff
>> Sent: Tuesday, November 25, 2008 12:47 PM
>> To: 'Chuck - AE4CW'; elecraft at mailman.qth.net
>> Subject: RE: [K3] [Elecraft] Loud audio blast on power up
>> 
>> 
>> You can also load data tables (along with all the other firmware, a
>> complete
>> refresh) by clicking "Send All Firmware to K3" on the Firmware tab
>> without
>> checking Advanced Mode.  Advanced Mode has too many choices!
>> 
>> Dick, K6KR
>> 
>> -----Original Message-----
>> From: elecraft-bounces at mailman.qth.net
>> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Chuck - AE4CW
>> Sent: Tuesday, November 25, 2008 9:24 AM
>> To: elecraft at mailman.qth.net
>> Subject: Re: [K3] [Elecraft] Loud audio blast on power up
>> 
>> 
>> Shep, sorry for the late reply; I've been traveling.
>> 
>> In the K3 Utility under View, check Advanced Mode.  This will display a
>> check box labeled *Always load DSP data tables*.  Also, be sure to check
>> all
>> the appropriate boxes for loading the Firmware modules.
>> 
>> This is the solution Gary provided back in March.  Hopefully, it will
>> work
>> for your problem now.
>> 
>> Chuck, AE4CW
>> 
>> 
>> 
>> Chuck-
>> I have the same problem. It started with V2.57. How do I reload "data
>> tables" ?
>> Thanks
>> Shep - W2BSB
>> 
>> 
>> 
>> I had this problem long ago; a reload of the firmware AND the data tables
>> cured it.  The trick was the data tables.  Thanks to Gary at Elecraft.
>> 
>> Chuck, AE4CW
>> 
>> <
>> --
>> View this message in context:
>> http://n2.nabble.com/Loud-audio-blast-on-power-up-tp1567485p1577277.html
>> Sent from the [K3] mailing list archive at Nabble.com.
>> 
>> _______________________________________________
>> Elecraft mailing list
>> Post to: Elecraft at mailman.qth.net
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>>  http://mailman.qth.net/mailman/listinfo/elecraft
>> 
>> Help: http://mailman.qth.net/subscribers.htm
>> Elecraft web page: http://www.elecraft.com
>> 
>> _______________________________________________
>> Elecraft mailing list
>> Post to: Elecraft at mailman.qth.net
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>>  http://mailman.qth.net/mailman/listinfo/elecraft
>> 
>> Help: http://mailman.qth.net/subscribers.htm
>> Elecraft web page: http://www.elecraft.com
>> 
>> _______________________________________________
>> Elecraft mailing list
>> Post to: Elecraft at mailman.qth.net
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>>  http://mailman.qth.net/mailman/listinfo/elecraft    
>> 
>> Help: http://mailman.qth.net/subscribers.htm
>> Elecraft web page: http://www.elecraft.com
>> 
> 
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
> 
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
> 
> 

-- 
View this message in context: http://n2.nabble.com/Loud-audio-blast-on-power-up-tp1567485p1640304.html
Sent from the [K3] mailing list archive at Nabble.com.