Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

an.qth.net Subject: Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated If you see low power it's a clue. I operate my K3S + KPA500 as a 500W transceiver, except when I'm running IMD tests, so the last time it happened I was notified of bad audio. The previous times the

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated If you have another receiver, run a two-test and listen to the K3 output in a narrow BW.  Ideally, the two tones will be considerably stronger than the first pair of sidebands. I suspect they won't be, you'll have a lot more than

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

-bounces at mailman.qth.net] On Behalf Of Wes Stewart Sent: Wednesday, December 12, 2018 4:55 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated If you have another receiver, run a two-test and listen to the K3 output in a narrow

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

If you see low power it's a clue.  I operate my K3S + KPA500 as a 500W transceiver, except when I'm running IMD tests, so the last time it happened I was notified of bad audio. The previous times the wattmeter or IMD tests were the clues. Wes  N7WS On 12/13/2018 12:03 PM, j...@kk9a.com

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

: Thursday, December 13, 2018 2:04 PM To: elecraft@mailman.qth.net Cc: li...@w2irt.net Subject: re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated It would be nice to know what conditions caused this FET failure. Is there an easy way to know when this failure occurs other than

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

Message- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Wes Stewart Sent: Wednesday, December 12, 2018 4:55 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated If you have

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts > indicated > > If you have another receiver, run a two-test and listen to the K3 output in a > narrow BW. Ideally, the two tones will be considerably stronger than the > f

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

: Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated If you have another receiver, run a two-test and listen to the K3 output in a narrow BW. Ideally, the two tones will be considerably stronger than the first pair of sidebands. I suspect they won't be, you'll have a lot

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

If you have another receiver, run a two-test and listen to the K3 output in a narrow BW.  Ideally, the two tones will be considerably stronger than the first pair of sidebands. I suspect they won't be, you'll have a lot more than two and you have a blown FET in the HPA. Wes  N7WS On

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

Pete, On one or both of the bands that failed, try running the TX Gain Calibration as described in the manual - that is done on a per band basis, and the manual method gives more time for the power to settle. If it still fails, contact Elecraft support. 73, Don W3FPR On 12/12/2018 4:09 PM,

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

Make sure the dummy load is connected; the cable is 'good'; that you are not routing the serial data via the P3 (as if you were updating firmware; there is sometimes a slight stumble in communications otherwise) and that your supply is giving appropriate voltages under load. Try this a few

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

Ran the TX Gain calibration from the K3 Utility and it failed on 160 and 80, then aborted because power readings did not converge 73, Pete N4ZR Check out the Reverse Beacon Network at , now spotting RTTY activity worldwide. For spots, please use your favorite "retail"

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

Sorry, this was on CW. It occurs on all bands.  Is there a test (perhaps using TXCAL) that I could do to narrow down the cause? 73, Pete N4ZR Check out the Reverse Beacon Network at , now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX

Re: [Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

Not enough info, how are you transmitting? Chuck KE9UW Sent from my iPhone, cjack > On Dec 12, 2018, at 1:47 PM, N4ZR wrote: > > Transmitted on my K3 for the first time since the 10-meter contest, and it is > only showing 25 watts out on the built-in meter into a dummy load. Power >

[Elecraft] K3 Suddenly Putting Out Only 25 watts at 100 watts indicated

Transmitted on my K3 for the first time since the 10-meter contest, and it is only showing 25 watts out on the built-in meter into a dummy load. Power output setting of the K3 is 100W, and same results seen on all bands. What could possibly be going on here?  Back to Watsonville? The cruel