Loud audio blast on power up
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Something seems to have crept into the last firmware build that I don't
remember hearing before. When I turn the rig on there is a momentary loud blast from the speakers. It lasts maybe 250 milliseconds and then everything is normal. I get the phenomena when in CW, data, SSB modes. I do not see it show up in AM. When I watch the filter display on the K3 front panel the bandwidth seems to change in concert with the sound blast. For example if I am running SSB with normalized bandwidth the K3 powers up with the filter narrower and then shortly thereafter widens. I am running MCU 2.63 and DSP 01.95. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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Mike -
I have a similar phenomenon, but it's a "soft blast", a burst of low audio as the radio turns on, followed by normal operation. Last 2 firmware loads exhibit this. I had a loud blast once before. Try reloading all the software and data tables, that fixed it for me. Monty K2DLJ > When I turn the rig on there is a momentary loud blast from the speakers. > It > lasts maybe 250 milliseconds and then everything is normal. I get the > phenomena when in CW, data, SSB modes. I do not see it show up in AM. _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
Re: Loud audio blast on power up
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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
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Chuck, AE4CW |
Re: Loud audio blast on power up
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Chuck-
I have the same problem. It started with V2.57. How do I reload "data tables" ? Thanks Shep - W2BSB
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Re: Loud audio blast on power up
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In reply to this post by Shep Brokaw - W2BSB
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 <quote author="Shep Brokaw - W2BSB"> Chuck- I have the same problem. It started with V2.57. How do I reload "data tables" ? Thanks Shep - W2BSB <quote author="Chuck - AE4CW"> 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 <
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Chuck, AE4CW |
RE: Loud audio blast on power up
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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: [hidden email] [mailto:[hidden email]] On Behalf Of Chuck - AE4CW Sent: Tuesday, November 25, 2008 9:24 AM To: [hidden email] 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: [hidden email] 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: [hidden email] 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 |
RE: Loud audio blast on power up
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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: [hidden email] [mailto:[hidden email]]On Behalf Of Dick Dievendorff Sent: Tuesday, November 25, 2008 12:47 PM To: 'Chuck - AE4CW'; [hidden email] 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: [hidden email] [mailto:[hidden email]] On Behalf Of Chuck - AE4CW Sent: Tuesday, November 25, 2008 9:24 AM To: [hidden email] 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: [hidden email] 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: [hidden email] 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: [hidden email] 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 |
Re: Loud audio blast on power up
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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: [hidden email] > [mailto:[hidden email]]On Behalf Of Dick Dievendorff > Sent: Tuesday, November 25, 2008 12:47 PM > To: 'Chuck - AE4CW'; [hidden email] > 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: [hidden email] > [mailto:[hidden email]] On Behalf Of Chuck - AE4CW > Sent: Tuesday, November 25, 2008 9:24 AM > To: [hidden email] > 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: [hidden email] > 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: [hidden email] > 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: [hidden email] > 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: [hidden email] 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 |
K3: 1. Loud audio blast on power up 2. Main/SUB balance
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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
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At 12/10/2008 03:03 PM, Enno, PF5X wrote:
>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. I recorded the 160M CW contest this weekend using the LINE OUT=phone or speaker option. I also noticed the short burst when the radio was turned 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. Yes, this should make recording a lot easier, thanks! >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). What I noticed, but didn't investigate, was that there was a DC offset in the SUB audio output. I was using Audacity to record the audio. Using the LINE OUT to a line in on my computer. I noticed that monitoring the sidetone showed close to a zero (if not zero) DC offset for the left channel or the MAIN Rx. The right channel however showed a substantial DC offset. I haven't played with the new Beta yet, nor have I looked closely at the recording. _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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In reply to this post by Enno, PF5X
I thought I was just getting a low-level spurt of audio, but if there is a
signal on the frequency, it is a loud blast as Enno describes. Monty K2DLJ 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) ?? _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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