Firmware Beta 2.19
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Hi All
I loaded Beta 2.19 and found the audio level decreased. I had to set AF gain at 12 o'clock for good level and with Beta 2.16 was good at 9 o'clock so, I went back to V 2.16 since most of the other changes were for the sub receiver. Any one else notice this ? Phil K8MBY # 609 _______________________________________________ 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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> I loaded Beta 2.19 and found the audio level decreased. I had to set
> AF gain at 12 o'clock for good level and with Beta 2.16 was good at 9 > o'clock so, I went back to V 2.16 since most of the other changes were > for the sub receiver. Any one else notice this ? Yes, the AGC threshold is about 10 dB lower than it was (and in line with earlier DSP code) and the AGC slope may be flatter, so the audio level will be less. Please try adjusting the AGC threshold and slope. 73, Lyle KK7P _______________________________________________ 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 Phillip Buckholdt-2
Phillip Buckholdt wrote:
> Hi All > > I loaded Beta 2.19 and found the audio level decreased. I had to set > AF gain at 12 o'clock for good level and with Beta 2.16 was good at 9 > o'clock so, I went back to V 2.16 since most of the other changes were > for the sub receiver. Any one else notice this ? The AGC threshold was lowered a bit. If you have the AGC Threshold (CONFIG: AGC THR) set very low, then perhaps the AGC is reducing the gain. You can check by turning AGC off. Try increasing AGC THR a bit. What I do -- and this is a personal preference -- is set the threshold high enough that there is no AGC action on noise or weakish signals. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ 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 Phillip Buckholdt-2
Phil,
I don't notice a change in the audio level on my K3. Is there a possibility that you had your AGC set for strong AGC action, and the AGC changes in 2.19/1.87 is creating the difference for you? I would suggest reloading MCU 2.19 and DSP 1.87, then adjusting the AGC parameters to suit your preference. Loading the new firmware does not set the parameters to any default settings, the settings you had before will still be in effect. 73, Don W3FPR Phillip Buckholdt wrote: > Hi All > > I loaded Beta 2.19 and found the audio level decreased. I had to > set AF gain at 12 o'clock for good level and with Beta 2.16 was good > at 9 o'clock so, I went back to V 2.16 since most of the other changes > were for the sub receiver. Any one else notice this ? > > Phil K8MBY # 609 > _______________________________________________ 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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Hi Don, Lyle and Vic
In v2.16 I had slope set to 15 and Threshold set to 5. I reloaded v2.19 and to get audio level up I have set slope to 0 and threshold to 8. I have not found any 9++ sigs on 20 just yet. 73 Phil ----- Original Message ----- From: "Don Wilhelm" <[hidden email]> To: "Phillip Buckholdt" <[hidden email]> Cc: "Elecraft List" <[hidden email]> Sent: Wednesday, July 23, 2008 1:17 PM Subject: Re: [Elecraft] Firmware Beta 2.19 > Phil, > > I don't notice a change in the audio level on my K3. > Is there a possibility that you had your AGC set for strong AGC action, > and the AGC changes in 2.19/1.87 is creating the difference for you? > I would suggest reloading MCU 2.19 and DSP 1.87, then adjusting the AGC > parameters to suit your preference. Loading the new firmware does not set > the parameters to any default settings, the settings you had before will > still be in effect. > > 73, > Don W3FPR > > Phillip Buckholdt wrote: >> Hi All >> >> I loaded Beta 2.19 and found the audio level decreased. I had to set >> AF gain at 12 o'clock for good level and with Beta 2.16 was good at 9 >> o'clock so, I went back to V 2.16 since most of the other changes were >> for the sub receiver. Any one else notice this ? >> >> Phil K8MBY # 609 >> > > _______________________________________________ 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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Phillip Buckholdt wrote:
> Hi Don, Lyle and Vic > > In v2.16 I had slope set to 15 and Threshold set to 5. > > I reloaded v2.19 and to get audio level up I have set slope to 0 and > threshold to 8. I have not found any 9++ sigs on 20 just yet. I have my threshold on 5, which in my case doesn't allow any AGC activation on noise or weak signals. Having the slope on 0 will give you very minimal AGC action -- mine is presently set to 8. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco _______________________________________________ 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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On Wed, 23 Jul 2008 11:32:36 -0700, Vic, K2VCO wrote:
>Phillip Buckholdt wrote: >> Hi Don, Lyle and Vic >> >> In v2.16 I had slope set to 15 and Threshold set to 5. >> >> I reloaded v2.19 and to get audio level up I have set slope to 0 and >> threshold to 8. I have not found any 9++ sigs on 20 just yet. > >I have my threshold on 5, which in my case doesn't allow any AGC >activation on noise or weak signals. Having the slope on 0 will give you >very minimal AGC action -- mine is presently set to 8. Well, I don't have any signals here, but with S-6 noise level I find the maximum threshold (=8) is very aggressive. I would have thought the threshold would have a greater range than this; i.e., the maximum value not cutting in as low as s-6 or lower. (But I don't know what it was with the previous MCU version.) Is there a graph available relating AGC threshold values (onset of AGC action) to s-meter readings? Just curious. But really, I guess there isn't much point in fooling with it until there are a few signals on the bands. 73, Drew AF2Z _______________________________________________ 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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