The latest firmware beta fixed my AGC issue with HRD. According to the notes, Elecraft made it more difficult for a "bad" command to accidentally disable the AGC. It appears that HRD was hammering the serial port quite a bit and that was sometimes resulting in a defective message that tripped the AGC.
While tinkering with the HRD settings (in terms of poll rate) helped reduce the problem, it never entirely went away until the K3 firmware update fixed it once and for all. I highly recommend updating to 4.48 before you blow you your speaker/headphones/ears. 73, Bob, WB4SON ______________________________________________________________ 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

