Transmit Gain
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TX GN in the CONFIG menu first showed Pr80 32. After re-doing the High Power (50W) TX Gain Calibration the TX GN entry now shows Pr80 35. This entry updates itself. Is it possible that a firmware update could affect TX GN? The TX GN entry in a new kit built K3 that had not been TX Gain calibrated showed 81 without the preceding Pr and without the number in the thirties after the 81. I don't know the significance of this. All I know is that I still have low (half the peak power or less) SSB transmit gain. It takes 28 watts in tune to develop 1 Kw on my Alpha 99 (which has a peak reading meter), and it takes 70 watts to develop this same output on SSB. I am well aware of the difference between average and peak readings and how they are derived. The solution to this problem does not lie there. My Omni VII does not require additional power in the SSB mode to obtain 1 KW after the power has been set for linear tune-up. I hope this can be corrected in a future firmware upgrade. Roy Morris W4WFB K3 #323
_______________________________________________ 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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G'morning Roy:
If you haven't addressed your concern to [hidden email], perhaps you should. 73, Ken K3IU Roy Morris wrote: > TX GN in the CONFIG menu first showed Pr80 32. After re-doing the High Power (50W) TX Gain Calibration the TX GN entry now shows Pr80 35. This entry updates itself. Is it possible that a firmware update could affect TX GN? The TX GN entry in a new kit built K3 that had not been TX Gain calibrated showed 81 without the preceding Pr and without the number in the thirties after the 81. I don't know the significance of this. All I know is that I still have low (half the peak power or less) SSB transmit gain. It takes 28 watts in tune to develop 1 Kw on my Alpha 99 (which has a peak reading meter), and it takes 70 watts to develop this same output on SSB. I am well aware of the difference between average and peak readings and how they are derived. The solution to this problem does not lie there. My Omni VII does not require additional power in the SSB mode to obtain 1 KW after the power has been set for linear tune-up. I hope this can be corrected in a future firmware upgrade. Roy Morris W4WFB K3 #323 > _______________________________________________ > 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 |
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In reply to this post by Roy Morris-6
Roy. What do you have TX ALC set to. It should be ON.
Greg -----Original Message----- From: [hidden email] [mailto:[hidden email]]On Behalf Of Roy Morris Sent: Friday, March 21, 2008 6:16 AM To: [hidden email] Subject: [Elecraft] Transmit Gain TX GN in the CONFIG menu first showed Pr80 32. After re-doing the High Power (50W) TX Gain Calibration the TX GN entry now shows Pr80 35. This entry updates itself. Is it possible that a firmware update could affect TX GN? The TX GN entry in a new kit built K3 that had not been TX Gain calibrated showed 81 without the preceding Pr and without the number in the thirties after the 81. I don't know the significance of this. All I know is that I still have low (half the peak power or less) SSB transmit gain. It takes 28 watts in tune to develop 1 Kw on my Alpha 99 (which has a peak reading meter), and it takes 70 watts to develop this same output on SSB. I am well aware of the difference between average and peak readings and how they are derived. The solution to this problem does not lie there. My Omni VII does not require additional power in the SSB mode to obtain 1 KW after the power has been set for linear tune-up. I hope this can be corrected in a future firmware upgrade. Roy Morris W4WFB K3 #323 _______________________________________________ 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 |
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Greg,
Thanks for any help you can give me on this. Yes, TX ALC is on. I would appreciate any other suggestions you might have. There is definitely something that is not right. Thanks again, Greg. Roy W4WFB ----- Original Message ----- From: "Greg" <[hidden email]> To: "Roy Morris" <[hidden email]>; <[hidden email]> Sent: Friday, March 21, 2008 8:49 PM Subject: RE: [Elecraft] Transmit Gain > Roy. What do you have TX ALC set to. It should be ON. > > Greg > > > -----Original Message----- > From: [hidden email] > [mailto:[hidden email]]On Behalf Of Roy Morris > Sent: Friday, March 21, 2008 6:16 AM > To: [hidden email] > Subject: [Elecraft] Transmit Gain > > > TX GN in the CONFIG menu first showed Pr80 32. After re-doing the High > Power (50W) TX Gain Calibration the TX GN entry now shows Pr80 35. This > entry updates itself. Is it possible that a firmware update could affect > TX > GN? The TX GN entry in a new kit built K3 that had not been TX Gain > calibrated showed 81 without the preceding Pr and without the number in > the > thirties after the 81. I don't know the significance of this. All I know > is that I still have low (half the peak power or less) SSB transmit gain. > It takes 28 watts in tune to develop 1 Kw on my Alpha 99 (which has a peak > reading meter), and it takes 70 watts to develop this same output on SSB. > I > am well aware of the difference between average and peak readings and how > they are derived. The solution to this problem does not lie there. My > Omni > VII does not require additional power in the SSB mode to obtain 1 KW after > the power has been set for linear tune-up. I hope this can be corrected > in > a future firmware upgrade. Roy Morris W4WFB K3 #323 > _______________________________________________ > 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 > > > -- > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.519 / Virus Database: 269.21.8/1337 - Release Date: 3/20/2008 > 8:10 PM > > _______________________________________________ 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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