Jack The problem appears to be in the keying interface. Disconnecting the keying cable enables receive while in operate - per Lyle's comment.
Ariel NY4G Sent from my iPad > On Jan 10, 2014, at 8:49 PM, "Jack Brindle" <[email protected]> wrote: > > You may want to talk to tech support when they open on Monday. You can > connect the KPA to the K2 using a serial cable, but be sure to follow the K2 > rules and only connect pins 2, 3 and 5. DO NOT connect the other pins on the > KPA -0 that is, do not use a straight-through 9 conductor cable. Set the > KPA’s RADIO menu setting to SERIAL and the data rate to 4800. > > This won’t solve the receive problem, though. The problem sounds serious > enough that Customer Support will need to help you. > > Jack Brindle, W6FB > >> On Jan 10, 2014, at 5:24 PM, Cady, Fred <[email protected]> wrote: >> >> Hello Ariel, >> Does the KPA500 show the same band that the K2 is on? If not, try tapping >> your key to send a little RF to the amp when in operate mode so it can >> measure the frequency and switch in the correct band pass filters. >> Cheers, >> Fred KE7X >> "The Elecraft K3: Design, Configuration, and Operation, 2nd Ed" >> "The Elecraft KX3 -- Going for the Summit" >> Coming soon: "The Elecraft KPA500 and KAT500" >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Ariel Jacala >> Sent: Friday, January 10, 2014 5:24 PM >> To: elecraft reflector >> Subject: [Elecraft] Connecting a K2 to a KPA500 >> >> Hi to the Elecraft Reflector >> >> I just acquired a KPA500 and connected it to a K2. I have the output of >> the K2 connected to the input of the KPA500. Things checked out through a >> dummy load in terms of loading the amplifier. The KPA500 is then connected >> to a resonant antenna. When on standby, I can hear signals through the >> antenna. When I press operate - I can no longer hear the signals. >> >> When I press the tune button on standby, the KPA500 does not measure SWR. >> Is this normal? The KPA500 was previously operated with a K3 with the K3 >> cable to the KPA500. I can key the KPA500 with the K2 and it produces >> expected power with the recommended drive levels. I am worried about not >> hearing signals when in operate mode. >> >> Do I need to update the firmware? Why can't I hear signals from the antenna >> with the KPA500 in "operate"? >> >> Any help is appreciated. >> >> Thanks >> >> Ariel NY4G >> >> Sent from my iPad >> ______________________________________________________________ >> 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 >> ______________________________________________________________ >> 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 > ______________________________________________________________ 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
