Is TX test on? 73 de Dick, K6KR
> On Jun 15, 2020, at 01:06, G4BVH <g4...@cathyandpeter.com> wrote: > > Hi, > > > > I have had a fault develop on my K3 whereby there is no RF being produced. I > have emailed the details to Elecraft support and am hoping to receive a > reply with suggestions. However, I thought I would also send the details > here in case anyone can suggest something to try or investigate further. > > > > I have a K3, serial number 6482 which I built from a kit. It has worked > flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters > fitted and the 100W module but no other additions. > > > > A few days ago, it was running 20W of FT8 and I suddenly discovered that it > hadn't been transmitting. Everything appeared that it should be > transmitting: the red TX LED was lit, it was not in TEST mode (TX not > flashing) but there was no RF output displayed on the bar graph and > definitely nothing coming out on any mode. There is no RF if I wind down the > power below the 10W level, there is the usual relay click going through 12W > - 13W and still no RF above this level, ie on towards 100W. > > > > The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power > level setting and 1.18A on the higher power setting on transmit. The RF > output bar graph always displays 1 bar on transmit no matter what the power > level is set but there is no RF coming out. > > > > I tried the TX calibration but it fails saying the power level didn't reach > that required. > > > > The receiver works fine and I can hear the CW side tone and SSB, AM and FM > audio monitoring as normal. > > > > I have removed and reseated the front panel and also the 3 coax patch leads > behind the front panel but this made no difference. There is a yellow LED, > D33, on the main board which is lit on receive and goes out on transmit. > > > > The latest firmware is installed - I updated this a month or so ago. > > > > TX inhibit is OFF and the 20A breaker has not tripped. > > > > Any thoughts or suggestions gratefully received. > > > > Very many thanks and 73, > > > > Peter, G4BVH > > > > > > > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to d...@elecraft.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
