Just a short note following my previous email below. I am now in IARU Region 3 conference in, Ho Chi Ming City, Vietnam. I am very happy to meet a number of Elecrafters as well.
TNX & 73, Johnny VR2XMC ________________________________ 寄件人︰ Johnny Siu <[email protected]> 收件人︰ John Reilly <[email protected]>; Elecraft <[email protected]> 傳送日期︰ 2012年11月8日 (週四) 7:28 AM 主題︰ [Elecraft] DSP Noise Reduction and contesting Yes, John. I did find the NR in KX3 is better. Among all the three elecraft radios, in SSB, the order of usefulness (in decending order) of NR could be of the following: KX3, K3 and KDSP2 in K2 I believe the DSP chip set in KX3 could be newer. The process power of the DSP chip could be easily found in the data sheet of that particular chip set. The process power, like CPU speed in our PC, does affect the performance (including NR) and design of the radio. Finding the 'sweet spot' for NR in KX3 is much easier but none of the 32 selections in K3 in NR is really useful for SSB. Unless for contest (I switch off the NR), I would go back to my Icom rather than K3. Luckily, I now have KX3 which has a much better NR. TNX & 73, Johnny VR2XMC ________________________________ 寄件人︰ John Reilly <[email protected]> 收件人︰ Elecraft <[email protected]> 傳送日期︰ 2012年11月8日 (週四) 6:12 AM 主題︰ [Elecraft] DSP Noise Reduction and contesting Interesting point about about the DSP in the KX3. I was told at Dayton that the DSP in the KX3 was several generations newer than what we have in the K3. With the audio problems Elecraft has had on the board (additional daughter card) and the continued continued complaints about audio distortion (Sherwood), maybe they will redesign the card with the newest DSP generation and offer it to K3 owners as an upgrade. Of course, this would lead to some interesting DSP firmware distribution problems with different hardware platforms to support! - 73, John, N0TA [Elecraft] DSP Noise Reduction and contesting Johnny Siu Wed, 07 Nov 2012 07:59:57 -0800 Hello Tony, I concur with your observation. In SSB, the NR in Icom is far better. Among all the 8 x 4 = 32 choices in NR settings in K3, I am afraid that none of them is as good as that of NR of Icom in SSB. The success of the implementation of IF DSP will depend on: 1. the processing power of the DSP chip set; 2. the ability to write an efficent firmware to optimise the performance of the DSP chip set. Surprisingly, while I was told that the NR in KX3 was the same as that in K3, I feel the NR in KX3 sounds better and less artifact. I trust elecraft keeps on looking for ways to improve the NR performance. TNX & 73, Johnny VR2XMC ______________________________________________________________ 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
