Re: [Elecraft] K3/K3s filter setting with the K3 Utility

2019-03-24 Thread Gary Smith
Rich, Interesting food for thought. I just received my 1.8 for the sub RX and was wondering what others found most helpful seeing as there are the options to custom tailor the settings. At the same time, I really make great use of the narrow filter on CW and am always looking for something

Re: [Elecraft] K3/K3s filter setting with the K3 Utility

2019-03-23 Thread Erik Basilier
al Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Richard Ferch Sent: Friday, March 22, 2019 4:06 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3/K3s filter setting with the K3 Utility Earlier I gave an example of a situation where you might choose to enable a roof

Re: [Elecraft] K3/K3s filter setting with the K3 Utility

2019-03-22 Thread Rich
Since we are on this topic.  I have a question regarding the 500hz filter.   From what I have read it is rated at 525hz.   So would it be best configured to come on at 500hz or should I set it to 550hz.  I do not think you can set it to 525hz Thanks in advance Rich K3RWN On 3/22/2019 17:58

Re: [Elecraft] K3/K3s filter setting with the K3 Utility

2019-03-22 Thread Richard Ferch
Earlier I gave an example of a situation where you might choose to enable a roofing filter at a bandwidth wider than the bandwidth marked on the filter. I also gave a poor example of enabling a filter at a narrower bandwidth. Here is a better one: You use a variety of digital modes with different

Re: [Elecraft] K3/K3s filter setting with the K3 Utility

2019-03-22 Thread Richard Ferch
I muffed the last part of my previous message, didn't I? Still, there are some higher-order effects that might push someone into configuring a roofing filter ti switch in at a slightly narrower setting than you might at first expect. 73, Rich VE3KI

Re: [Elecraft] K3/K3s filter setting with the K3 Utility

2019-03-22 Thread Richard Ferch
There can be reasons to configure a roofing filter differently from its nominal bandwidth. For example, I have a "250 Hz" filter. According to the filter plots on the Elecraft web site, the 6 dB bandwidth of this filter is actually closer to 375 Hz. I configured my filter to switch in at 350 Hz,

[Elecraft] K3/K3s filter setting with the K3 Utility

2019-03-22 Thread Gary Smith
It seems as intuitive, the filter you use is the value you select in the K3 utility under filter configuration. I.e. a 1.8 filter is set at 1.8 in the utility. Considering there is DSP simultaneously occurring at the same time; Is there any advantage to setting the 1.8 above, say as 2. in