Try shorting the RCA connector on the amp and see if the TX light comes on.
Load the KPA1500 utility and look at the log file. Look on the KPA1500 and see what frequency it thinks the amp is on. If it is out of band it will not TX. That is where I would start. Also check that all cables are seated properly. Dave wo2x Sent from my waxed string and tin cans. > On Oct 28, 2020, at 7:01 AM, Richard Thorne <[email protected]> wrote: > > Came out to the shack this morning and the KPA-1500 is not going into > transmit. > > I verified that the PTT cable is shorting when the Flex 6600 goes into > transmit. > > The amp operates properly otherwise. The ATU works, it shows the power out > from the 6600, it just won't go into transmit (no Red TX LED). > > I did upgrade to firmware 2.48 yesterday and the amp worked fine. I > downgraded to 2.38 this morning, same result, the amp will not go into > transmit. > > What am I missing early this morning with only a half cup of coffee. > > Thanks > > Rich - N5ZC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
