Re: [Elecraft] A very desirable capability

2017-08-26 Thread Bob McGraw K4TAX
Most legacy receivers are designed for 10 meters.  Within this point, this generally says the receiver gain on lower frequencies is somewhat excessive.   Plus typical of most environments, the band noise increases as frequency decreases.  Additionally, the ear has the ability to easily discern

Re: [Elecraft] A very desirable capability

2017-08-26 Thread Mike Markowski
Bob K4TAX, Why 10 to 15 dB above - is your idea to have some margin for band noise floor changes? It seems you'd maximize dynamic range by making the two equal. Tnx es 73, Mike ab3ap On 08/26/2017 03:36 PM, Al Lorona wrote: Once again, a beautiful post by Bob. [...] R, Al W6LX

Re: [Elecraft] A very desirable capability

2017-08-26 Thread Al Lorona
Once again, a beautiful post by Bob. His description suggests a feature that could be put into any new transceiver. Imagine a graphical depiction of Bob's scenario below on the color screen of the radio which would help you optimize the placement of the dynamic range of the radio with respect

Re: [Elecraft] A very desirable capability

2017-08-22 Thread Walter Underwood
That is a pretty good description of how the KX3 NR works right now, except it doesn’t have a graphic UI. From the release notes for 1.47: The RX NR menu entry can be used to adjust all three NR parameters (B=beta, D=decay, M=wet/dry mix). The M parameter now has a range of 0-10, matching the

Re: [Elecraft] A very desirable capability

2017-08-22 Thread Bob McGraw K4TAX
One point I've observed is the fact the noise on a given band may not be the same from day to day, or week to week.  Thus I find it necessary to tweak the values of NR and NB for best performance. Same issues with band to band, i.e. what I need on 80M is no where close to what I need on 6M in

Re: [Elecraft] A very desirable capability

2017-08-22 Thread Don Wilhelm
Peter, Since "one size" does not fit all noise sources, I believe that what you suggest is not practical. It may be that something could be done to provide the most useful noise reduction for "average noise", but the closest to that right now would be the default settings in the K3/K3S. If

Re: [Elecraft] A very desirable capability

2017-08-22 Thread efortner
I agree 100% Earl, K4KAY To: elecraft@mailman.qth.net Subject: [Elecraft] A very desirable capability Reading Drew's (AF2Z's) comment, "The single most important feature that would get me to spring for a K4 would be advanced noise abatement controls. I have little idea how the NR &

[Elecraft] A very desirable capability

2017-08-22 Thread Peter Alterman
Reading Drew's (AF2Z's) comment, "The single most important feature that would get me to spring for a K4 would be advanced noise abatement controls. I have little idea how the NR & NB work, but strictly from the user standpoint instead of scrolling through a small assortment of fixed presets I