Hi Wayne, As -always- thanks so much for listening.
This is not a trivial issue for me, it's the "glue" that brings all the other aspects of the transceiver into line. Here's the list in priority order, what I'm looking for in a flexible AGC: 1. Slope - I want S9 CW signals to sound stronger than S2 signals (more AF) when using a speaker, filling the room with signal. When using headphones I'd like to dial it so the signals are at the same level. This setting was not changed. 8-) 2. Threshold - this is possibly somewhat redundant with SLOPE, but I'd like the AGC for CW to behave as if it's in the OFF position until (example) S5, then to become active. The threshold would change appreciably by band and noise level. 3. Decay - this is more for phone modes, especially AM. I'd like an S9 AM carrier when unkeyed to slowly decay to the squelch at the rate that I choose. CW would be the fastest decay. 4. Hold - (Hang AGC?) I guess this is Ten Tec emulation mode. ;-) I don't have much use for this, but would use it for phone modes occasionally. I'd rely on DECAY the majority of the time. 5. Attack - this one, well really isn't that critical either for my operation, if THRESHOLD is available, but some others may have modes where this would be beneficial. In the past I have been amazed at what sounded "good" with some of my friends. IC756Pro in Full NR for example does not even sound human to me but some others hate band noise so much it makes sense to them. So as long as there is a defaults reset, I lean towards customization. Those of us that have fiddled with hardware AGC circuits realize the large practical benefits in being able to shape it. C U Don Don Rasmussen wrote: > I don't know about anyone else, but I bought K3 based on being able to > adjust these (5) things. Don, It was my decision to remove them, for the reasons given below. It's trivial to add them back in, but debatable as to whether it's a good idea. I'm open to discussion. Perhaps we could put them back in along with cautions in the manual. Please send me a description of how you would use the controls, i.e. the qualitative effects you have in mind or specific decay values you've used before, etc. I'd like to evaluate how your needs differ from the nominal settings already present. Here's my reasoning for removing some of the controls: 1. Months of field testing revealed that our testers -- despite a wide variety of operating styles -- barely ever changed any of the settings except flatness and hold (hang) time. 2. Some combinations of settings can end up being very confusing, except for the advanced and/or experimentally inclined operator who can recognize the side effects. This has been endlessly played out on some of our competitors' rigs. I had sought to avoid such difficulties once it became clear that there was such a small range in use by our testers. 3. Some settings can compromise the performance not just of AGC, but that of other functions, as well (e.g., DSP noise blanking and AGC pulse detection/removal). 73, Wayne N6KR --- wayne burdick <[EMAIL PROTECTED]> wrote: > Don Rasmussen wrote: > > > I don't know about anyone else, but I bought K3 > based on being able to > > adjust these (5) things. > > Don, > > It was my decision to remove them, for the reasons > given below. It's > trivial to add them back in, but debatable as to > whether it's a good > idea. I'm open to discussion. Perhaps we could put > them back in along > with cautions in the manual. > > Please send me a description of how you would use > the controls, i.e. > the qualitative effects you have in mind or specific > decay values > you've used before, etc. I'd like to evaluate how > your needs differ > from the nominal settings already present. > > Here's my reasoning for removing some of the > controls: > > 1. Months of field testing revealed that our testers > -- despite a wide > variety of operating styles -- barely ever changed > any of the settings > except flatness and hold (hang) time. > > 2. Some combinations of settings can end up being > very confusing, > except for the advanced and/or experimentally > inclined operator who can > recognize the side effects. This has been endlessly > played out on some > of our competitors' rigs. I had sought to avoid such > difficulties once > it became clear that there was such a small range in > use by our > testers. > > 3. Some settings can compromise the performance not > just of AGC, but > that of other functions, as well (e.g., DSP noise > blanking and AGC > pulse detection/removal). > > 73, > Wayne > N6KR > > --- > > http://www.elecraft.com > > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
