In all fairness, I now see why the K3 behaves as it does, and that it's not a simple firmware mod to fix it. KEY_OUT is derived from 7R, which switches all sorts of stuff between RX and TX mode. If 7R were disabled in PTT RX mode, probably even the sidetone wouldn't work. I don't even see a spare pin on the MCU chip that could be used to gate KEY_OUT.
End of discussion, I think. 73, Scott K9MA On Mar 11, 2011, at 3:26 PM, Scott Ellington wrote: > Not necessarily. The PTT Out line may control more than just the internal > amplifier relays. For example, if one uses a separate receiving antenna, > there should be a relay which disconnects it from the receiver on transmit. > The amplifier output may also be switched by an external relay. There might > even be a relay which terminates a shunt fed tower on receive, so it doesn't > re-radiate into the rx antennas. So, there could be 3 relays switching. Even > if they're quiet ones, I'd rather they didn't in PTT rx mode. > > Perhaps there is a situation where it is desirable to do what the K3 does, > though it escapes me. In any case, it would be nice to have the option of > turning it off in PTT mode. > > Scott K9MA > > > On Mar 11, 2011, at 3:01 PM, JAMES ROGERS wrote: > >> It seems to me that switching your amp to standby while doing your >> adjustments would solve the problem? >> >> 73s Jim >> On Mar 11, 2011, at 2:47 PM, Scott Ellington wrote: >> >>> I think this is normal, and it's annoying. I don't know of any other >>> transceiver that behaves this way. >>> >>> 73, >>> >>> Scott K9MA >>> >>> >>> >>> On Mar 11, 2011, at 2:40 PM, Sy Botan wrote: >>> >>>> Most of my operating is on CW. While staying in the CW receive mode I >>>> operate the paddle to adjust speed and monitor level. The transmit relay >>>> activates and the amplifier relay also is activated. Being in the CW >>>> receive mode there is no RF output but the relay clanking is annoying. >>>> Neither VOX or QSK is selected. I tried to find some menu item that might >>>> have an affect on the relay activation. Did I overlook something or is >>>> this >>>> normal? >>>> >>>> Tnx de Sy K6PWP # 5223 (one week old) >>>> ______________________________________________________________ >>> >>> Scott Ellington >>> Madison, Wisconsin >>> USA >>> >>> >>> >>> ______________________________________________________________ >>> 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 >> >> JIM ROGERS, W4ATK >> w4...@bellsouth.net >> http://web.me.com/jimrogers_w4atk >> K3/100 P3 >> K2/10 >> >> >> >> > > Scott Ellington > Madison, Wisconsin > USA > > > > ______________________________________________________________ > 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 Scott Ellington Madison, Wisconsin USA ______________________________________________________________ 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
