Even the FT-1000D would not let you change RX filters during XMT. Rob K6RB
> I agree, the K3 certainly does have more RX things locked while > transmitting than my MP, but the MP had some as well. > > I seem to recall that this is also true of other software defined > radios like Flex, but others can comment on that. All of the K3 > controls are effectively encoders, including the rf/af gain controls > which divide off a standard voltage and are converted to digital > before they are used for anything and must be processed to have > effect. In a completely analog radio, each pot is always connected to > its own circuit. > > The shift/width/speed/cmp controls are encoders only and tell the CPU > when they are being turned and which direction, They can only only > have an effect when the CPU is paying attention to them. There is no > end of pot or physical range limits on them. They do not retain their > state like rf/af controls. In order to be continuously responsive, > the firmware program(s) would have to be constantly running a state > function for each of them, even while creating the transmit envelope > from digitized input. This could be disproportionately more difficult > code or disproportionately more use of processing resources. Using > encoders allows multiple functions for each knob, which would not be > possible with if they were pots. > > But someone from Elecraft would need to comment to the rationale of > freezing a given RX setting during TX and whether any unfreezing is on > the firmware-to-do list. > > I know they have gone through at least two phases of optimizing code > for resource use. > > I have to be careful myself -- I tend to be irritated by anything that > is different, and there is a LOT in a K3 different from an analog > radio. So far none of them are deal breakers, and me getting used to > them has been the real issue. I was still fussing a year later about > my new FT1000MP. But when it was all over, were it not for fixing the > key clicks, the quite crushable front end, and all the IM crap it > added to the ambient band noise, it would still be my favorite, just > because matched INRAD 8 pole filters in both IF's for all modes and > bandwidths really worked well for selectivity AND I was finally used > to the menus and knobs and rarely had to look anything up in the > manual. My new rig angst isn't particular to the K3, it's just me. > It's new anything angst. > > I hate changes, I hate surprises, yada, yada, but that's my problem. > Were it not for four years non-contest operating with a K2, the K3 > analog-to-digital-disconnect change together with panel changes may > have been a deal breaker with where-the-h*ll-are-the-band-buttons, > etc. But I had already figured out I could hear way better on any band > with my K2 than the MP, and my brain's anti-change barking dog was > regularly whipped back into the corner for the privilege of hearing > the EU 40m QRP-basement-noodle-antenna crowd on my K3, and realizing > that the next layer was an apparently inexhaustible layer of Russians > that points to some *RX* antenna work to get them. So now I'm getting > used to the K3, ..... > > Going to N1MM logger from the DOS-based TR logger was quite more > irritating than any switching receivers. I was thrown in the deep end > of the pool, do or die, at a multi-op station with all those other ops > around me that switched years ago and were very helpful, but couldn't > quite keep the smirk off their face.... > > 73, Guy. > > On Thu, Apr 1, 2010 at 6:07 AM, HA3AUI <[email protected]> wrote: >> I wonder if anyone else has noticed, most of the front panel controls >> are disabled during TX? >> It's quite annoying during a contest for example, where you could use >> that little time to make an adjustment eg. change bandwidth, turn on/off >> preamp etc. before the rig returns to RX. >> I've never ever seen this behavior on any other rig that I own. >> >> ______________________________________________________________ >> 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
