K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
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K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
 
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K3 beta-test firmware revision 2.76 (with DSP rev 1.98) is now
available. See release notes below. Please send any problem reports to [hidden email]. For instructions on how to load beta firmware, please see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 2.76 / DSP 1.98, 12-21-2008 * POWER-ON AF NOISE BURST: This should now be eliminated. * DIGIT 2 SWITCH TONE FEEDBACK RESTORED. The ‘2’ key on the numeric keypad now provides tone feedback when used for numeric entry or within menu entries. There’s no tone when it’s used as “REV” (temporary A/B VFO reverse). * SSB TX AFTER VFO A/B SWAP: Transmit filter settings are now correct after any A/B swap, regardless of the modes of VFO A and B. This had been noted by some customers as a problem on power-up, but it could occur anytime the VFOs were in different modes at the time of an A/B swap. * INDEPENDENT PREAMP AND ATTN FOR SUB RECEIVER: The preamp and attenuator settings for the receiver are now independent of main. On each band, you can set up the sub’s preamp/attenuator as desired using BSET. The sub’s preamp/attenuator are separate even in diversity mode, where you’ll often be using a lower-gain antenna for the sub receiver. Note: A second tap of A>B within the 2-second window still copies all main receiver settings to the sub, including preamp and attenuator. For software developers: * “FR0” COMMAND (SPLIT CANCEL): Now correctly restores the VFO A arrow icon. * CONFIG:KPA3 MENU ENTRY: The parameter for this menu entry is now accessible via the “MP” command. * “FA”/”FB” commands and loss of PLL lock: Large FA/FB frequency steps were, on rare occasion, causing loss of PLL lock. This has been corrected. * Added "PA$" (sub RX preamp) and "RA$" (sub RX attenuator) commands. This is in conjunction with the sub preamp and attenuator settings now being independent of main (see above). During BSET, both return “?;” at present. --- 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: K3 Firmware Rev. 2.76: No AF noise burst
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Thanks Wayne.... I always HATED that audio pop.... ever since solid state outputs,,,, now it turns on like it should.... like the expensive esoteric piece it is . Merry Christmas & Happy Holidays to all the crew... ( even Eric) bill visit my station @ http://picasaweb.google.com/Bill.SteffeySr/HamRadioNY9H _______________________________________________ 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: K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
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In reply to this post by wayne burdick
Wayne,
Thanks so much for correcting the SSB audio issue. It works just fine now. Merry Christmas and Happy New Year to you and all the Elecraft crew. 73, Dick, W0NTA
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Re: K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
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In reply to this post by wayne burdick
On my K3 there is still quite a loud speaker 'pop' with Power On
and Off after loading firmware revision 2.76. Looking at the NS data sheet for the audio amplifier IC shows that it has click suppression built in. The length of the suppression period is determined by the value of the capacitor on the Bypass connection.The value of the bypass capacitor is related to the input coupling capacitor. On the K3 cct diagram this is shown as a 0.47uF, which suggests a 10uF be fitted to the Bypass connection to give a click mute period of 0.4S. However, the K3 cct diagram shows a 3.3uF fitted, which gives only 0.12S. Any benefit increasing the value to 10uF ? 73 Stewart G3RXQ On Tue, 23 Dec 2008 10:37:46 -0800, wayne burdick wrote: > K3 beta-test firmware revision 2.76 (with DSP rev 1.98) is now > available. See release notes below. > > Please send any problem reports to [hidden email]. For > instructions on how to load beta firmware, please see: > > http://www.elecraft.com/K3/k3_software.htm > > 73, > Wayne > N6KR > > * * * > > MCU 2.76 / DSP 1.98, 12-21-2008 > > * POWER-ON AF NOISE BURST: This should now be eliminated. > > * DIGIT 2 SWITCH TONE FEEDBACK RESTORED. The '2' key on the > keypad now provides tone feedback when used for numeric entry or within > menu entries. There's no tone when it's used as "REV" (temporary A/B VFO > reverse). > > * SSB TX AFTER VFO A/B SWAP: Transmit filter settings are now correct > after any A/B swap, regardless of the modes of VFO A and B. This had > been > noted by some customers as a problem on power-up, but it could occur > anytime the VFOs were in different modes at the time of an A/B swap. > > * INDEPENDENT PREAMP AND ATTN FOR SUB RECEIVER: The preamp > and attenuator settings for the receiver are now independent of main. > On each band, you can set up the sub's preamp/attenuator as desired > using BSET. The sub's preamp/attenuator are separate even in diversity > mode, where you'll often be using a lower-gain antenna for the sub > receiver. > Note: A second tap of A>B within the 2-second window still copies all > main receiver settings to the sub, including preamp and attenuator. > > For software developers: > > * "FR0" COMMAND (SPLIT CANCEL): Now correctly restores the VFO A arrow > icon. > > * CONFIG:KPA3 MENU ENTRY: The parameter for this menu entry is now > accessible via the "MP" command. > > * "FA"/"FB" commands and loss of PLL lock: Large FA/FB frequency steps > were, on rare occasion, causing loss of PLL lock. This has been > corrected. > > * Added "PA$" (sub RX preamp) and "RA$" (sub RX attenuator) commands. > This is in conjunction with the sub preamp and attenuator settings now > being independent of main (see above). During BSET, both return "?;" > at present. > > > --- > > 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: K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
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I too still suffer from the notorious "pop" when powering on. I would
be interested if this change may help. 73, es happy holidays Chris Stewart Baker wrote: > On my K3 there is still quite a loud speaker 'pop' with Power On > and Off after loading firmware revision 2.76. > > Looking at the NS data sheet for the audio amplifier IC shows that > it has click suppression built in. The length of the suppression > period is determined by the value of the capacitor on the Bypass > connection.The value of the bypass capacitor is related to the > input coupling capacitor. > > On the K3 cct diagram this is shown as a 0.47uF, which suggests a > 10uF be fitted to the Bypass connection to give a click mute > period of 0.4S. However, the K3 cct diagram shows a 3.3uF fitted, > which gives only 0.12S. > > Any benefit increasing the value to 10uF ? > > 73 > Stewart G3RXQ > On Tue, 23 Dec 2008 10:37:46 -0800, wayne burdick wrote: > >> K3 beta-test firmware revision 2.76 (with DSP rev 1.98) is now >> available. See release notes below. >> >> Please send any problem reports to [hidden email]. For >> instructions on how to load beta firmware, please see: >> >> http://www.elecraft.com/K3/k3_software.htm >> >> 73, >> Wayne >> N6KR >> >> * * * >> >> MCU 2.76 / DSP 1.98, 12-21-2008 >> >> * POWER-ON AF NOISE BURST: This should now be eliminated. >> >> * DIGIT 2 SWITCH TONE FEEDBACK RESTORED. The '2' key on the >> > numeric > >> keypad now provides tone feedback when used for numeric entry or >> > within > >> menu entries. There's no tone when it's used as "REV" (temporary >> > A/B VFO > >> reverse). >> >> * SSB TX AFTER VFO A/B SWAP: Transmit filter settings are now >> > correct > >> after any A/B swap, regardless of the modes of VFO A and B. This >> > had > >> been >> noted by some customers as a problem on power-up, but it could >> > occur > >> anytime the VFOs were in different modes at the time of an A/B >> > swap. > >> * INDEPENDENT PREAMP AND ATTN FOR SUB RECEIVER: The preamp >> and attenuator settings for the receiver are now independent of >> > main. > >> On each band, you can set up the sub's preamp/attenuator as >> > desired > >> using BSET. The sub's preamp/attenuator are separate even in >> > diversity > >> mode, where you'll often be using a lower-gain antenna for the >> > sub > >> receiver. >> Note: A second tap of A>B within the 2-second window still >> > copies all > >> main receiver settings to the sub, including preamp and >> > attenuator. > >> For software developers: >> >> * "FR0" COMMAND (SPLIT CANCEL): Now correctly restores the VFO A >> > arrow > >> icon. >> >> * CONFIG:KPA3 MENU ENTRY: The parameter for this menu entry is >> > now > >> accessible via the "MP" command. >> >> * "FA"/"FB" commands and loss of PLL lock: Large FA/FB frequency >> > steps > >> were, on rare occasion, causing loss of PLL lock. This has been >> corrected. >> >> * Added "PA$" (sub RX preamp) and "RA$" (sub RX attenuator) >> > commands. > >> This is in conjunction with the sub preamp and attenuator >> > settings now > >> being independent of main (see above). During BSET, both return >> > "?;" > >> at present. >> >> >> --- >> >> 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 |
Re: K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
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Administrator
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Christopher Kovacs wrote:
> I too still suffer from the notorious "pop" when powering on. I would > be interested if this change may help. The "AF noise burst" that is eliminated by the latest firmware was caused by the AGC being turned off until about 2 seconds after power-up. If you had been tuned to a strong station, with the old firmware, you could hear a couple of seconds of very loud audio. That no longer happens. The "pop" heard in the speaker when turning on is an inherent property of the speaker amplifier IC, and cannot be changed in firmware. If we come up with a way to minimize this, we'll let you know. Meanwhile, you could plug in your headphones just when turning on power; this cuts off the speaker amp. 73, Wayne N6KR --- 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: Re: K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
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wayne burdick wrote: > Christopher Kovacs wrote: > >> I too still suffer from the notorious "pop" when powering on. I would >> be interested if this change may help. > > The "AF noise burst" that is eliminated by the latest firmware was > caused by the AGC being turned off until about 2 seconds after power-up. > If you had been tuned to a strong station, with the old firmware, you > could hear a couple of seconds of very loud audio. That no longer happens. > > The "pop" heard in the speaker when turning on is an inherent property > of the speaker amplifier IC, and cannot be changed in firmware. If we > come up with a way to minimize this, we'll let you know. Meanwhile, you > could plug in your headphones just when turning on power; this cuts off > the speaker amp. FWIW, the "pop" doesn't bother me at all... the "burst" was extremely loud, even with no signal, on a noisy band. I'm quite happy with the fix. Thanks! ~Iain / N6ML _______________________________________________ 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: K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTNindependent for sub RX; etc.
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In reply to this post by Christopher Kovacs
I have never experienced the audio pop. I turn the volume and power controls
all the way down before powering off the radio. I have updated with all the upgrades as they are released. Mike AI4NS _______________________________________________ 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: K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
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In reply to this post by wayne burdick
Hi Wayne,
No problem, I understand now what's occurring. Merry Xmas to all, Chris wayne burdick wrote: > Christopher Kovacs wrote: > >> I too still suffer from the notorious "pop" when powering on. I >> would be interested if this change may help. > > The "AF noise burst" that is eliminated by the latest firmware was > caused by the AGC being turned off until about 2 seconds after > power-up. If you had been tuned to a strong station, with the old > firmware, you could hear a couple of seconds of very loud audio. That > no longer happens. > > The "pop" heard in the speaker when turning on is an inherent property > of the speaker amplifier IC, and cannot be changed in firmware. If we > come up with a way to minimize this, we'll let you know. Meanwhile, > you could plug in your headphones just when turning on power; this > cuts off the speaker amp. > > 73, > Wayne > N6KR > > --- > > 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 |
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