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Re: 100 watt PA issue
Jeff,
The “Achilles heel “ in the K3 power stages is the 12 watt amplifier which is only conduction cooled. In normal use on SSB/ CW modes it seem to be fine all day at 12 watts out ( 8 watts out
Jeff,
The “Achilles heel “ in the K3 power stages is the 12 watt amplifier which is only conduction cooled. In normal use on SSB/ CW modes it seem to be fine all day at 12 watts out ( 8 watts out
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By
Bob Hammond G4DBW
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#32589
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Re: Factory service still available?
John,
This could very likely be an RFI problem, with RF getting into the PTT circuit. I had a similar problem.
Try reducing the rf output to A very low value say 1 watt, and see if everything runs
John,
This could very likely be an RFI problem, with RF getting into the PTT circuit. I had a similar problem.
Try reducing the rf output to A very low value say 1 watt, and see if everything runs
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By
Bob Hammond G4DBW
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#32588
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K3s CODEC access
I have lost Audio CODEC audio option in WSJT-X. It was working but no longer in WSJT?Setting/ audio dropdown. How do I restore CODEC for WSJT-X?
73, Jim K7EG
I have lost Audio CODEC audio option in WSJT-X. It was working but no longer in WSJT?Setting/ audio dropdown. How do I restore CODEC for WSJT-X?
73, Jim K7EG
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By
Jim Denneny
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#32587
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Re: 100 watt PA issue
L23 is in the 20/30m low pass filter. The only thing I can imagine could cause it to fail is a very badly mismatched load with just the wrong impedance. It's also possible, of course,
L23 is in the 20/30m low pass filter. The only thing I can imagine could cause it to fail is a very badly mismatched load with just the wrong impedance. It's also possible, of course,
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By
K9MA
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#32586
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Re: 100 watt PA issue
According to the schematic I have, L23 is part of the 20/30 meter output LPF. If it's been overheated I suspect a mismatched load was encountered at some time. Does your problem occur only 30 and/or
According to the schematic I have, L23 is part of the 20/30 meter output LPF. If it's been overheated I suspect a mismatched load was encountered at some time. Does your problem occur only 30 and/or
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By
Wes Stewart
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#32585
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Re: 100 watt PA issue
Well I was asking anyone if they had a clue about L23, I guess not :-)
I will call Elecraft tomorrow…
73 Jeff kb2m
Well I was asking anyone if they had a clue about L23, I guess not :-)
I will call Elecraft tomorrow…
73 Jeff kb2m
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By
Jeffrey griffin
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#32584
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Re: Factory service still available? [WSJT-X bug?]
Precisely. Same issue here. The fact that the TX audio "comes back" when WSJT-X is restarted seems to strongly suggest the issue is with WSJT-X.
I have the same issue with no transmit audio. This
Precisely. Same issue here. The fact that the TX audio "comes back" when WSJT-X is restarted seems to strongly suggest the issue is with WSJT-X.
I have the same issue with no transmit audio. This
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By
Rick <rick.22202@...>
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#32583
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Re: 100 watt PA issue
And the IMD will be awful.
Wes N7WS
And the IMD will be awful.
Wes N7WS
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By
Wes Stewart
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#32582
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Re: Elecraft K3 for sale ...
They are just communicating the general disdain for folks trying to run an auction on and Elecraft group.
Set an asking price, and be done with it.
This ain't
They are just communicating the general disdain for folks trying to run an auction on and Elecraft group.
Set an asking price, and be done with it.
This ain't
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By
Clay Autery
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#32581
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Re: 100 watt PA issue
I remember all of this now. Actually I was running about 7 watts to drive the AMP after I had the PA failure at 100 watts, there were no issues at 7 watts. I was trying to make the point that I was
I remember all of this now. Actually I was running about 7 watts to drive the AMP after I had the PA failure at 100 watts, there were no issues at 7 watts. I was trying to make the point that I was
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By
Jeffrey griffin
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#32580
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Re: 100 watt PA issue
Running 12 watts on data modes is bad. The low power PA won't withstand that.
-de John NI0K
Jeffrey griffin wrote on 5/3/2020 12:35 PM:
Running 12 watts on data modes is bad. The low power PA won't withstand that.
-de John NI0K
Jeffrey griffin wrote on 5/3/2020 12:35 PM:
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By
john ni0k
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#32579
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Re: Elecraft K3 for sale ...
Agreed hence the ridiculously low bids
Agreed hence the ridiculously low bids
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By
Ware Master
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#32578
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Re: Elecraft K3 for sale ...
I thought “auctions” were not allowed on this site (???)
Chas
I thought “auctions” were not allowed on this site (???)
Chas
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By
Charlie T, k3ICH
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#32577
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Re: Elecraft K3 for sale ...
I see a trend here and it gonna get ugly!
I see a trend here and it gonna get ugly!
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By
Jerry
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#32576
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Re: Elecraft K3 for sale ...
My bid 52$
By
Ware Master
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#32575
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100 watt PA issue
Last summer I was running more data modes (FT8) when I started having an issue with the 100 watt PA failing with a ERR 12V message. I then did the KP3A power connector replacement. This worked fine
Last summer I was running more data modes (FT8) when I started having an issue with the 100 watt PA failing with a ERR 12V message. I then did the KP3A power connector replacement. This worked fine
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By
Jeffrey griffin
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#32574
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Re: Elecraft K3 for sale ...
my bid: $51 :-))))))
73,
Martin, OK1RR
Dne 03. 05. 20 v 17:05 dean laclair napsal(a):
my bid: $51 :-))))))
73,
Martin, OK1RR
Dne 03. 05. 20 v 17:05 dean laclair napsal(a):
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By
Martin Kratoska <martin@...>
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#32573
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Re: K3 KIO3B Line In problem - no audio into K3
I was questioning whether the K3 was seeing the KIO3B and not selecting
the Line IN but that's probably not the case.
73,
... Joe, W4TV
I was questioning whether the K3 was seeing the KIO3B and not selecting
the Line IN but that's probably not the case.
73,
... Joe, W4TV
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By
Joe Subich, W4TV
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#32572
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Re: Factory service still available?
I was guessing they are probably not accepting stuff for repair but I wanted to find out for sure.
Thanks for the suggestions about WSJT-X being the root cause of the no transmit problem, I have
I was guessing they are probably not accepting stuff for repair but I wanted to find out for sure.
Thanks for the suggestions about WSJT-X being the root cause of the no transmit problem, I have
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By
John Canfield <bucket@...>
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#32571
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Re: Factory service still available?
Yes, perhaps not right now
73 de David, M0XDF (K3 #174, P3 #108)
--
I have never met a man so ignorant that I couldn't learn something from
him. -Galileo Galilei, physicist and astronomer
Yes, perhaps not right now
73 de David, M0XDF (K3 #174, P3 #108)
--
I have never met a man so ignorant that I couldn't learn something from
him. -Galileo Galilei, physicist and astronomer
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By
David Ferrington, M0XDF
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#32570
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