DSP for K2
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I have a K2 and recently tested a WMR Clrdsp unit and was very disappointed with the results. I think the unit was defective and I returned it. But I wanted to ask the list what outboard DSP units you might use and whether you think they're worth it or not. I have a hard time forking over $250 for the K2 internal DSP unit.
I have the KAF2 installed and it's very effective, but I'd really like to get rid of some of that QRN that's always present on 40m. Thanks Steve ----------------------------------------------- Steve Roberts-W1SFR Sudbury, VT ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Steve
I have a K2 also. I have a noise reduction speaker made by BHI out of the UK that is very effective in reducing QRN. You can look up the speaker in W4RT.com. Ariel NY4G Sent from my iPad On Aug 9, 2012, at 3:12 PM, "Stephen Roberts" <[hidden email]> wrote: > I have a K2 and recently tested a WMR Clrdsp unit and was very disappointed with the results. I think the unit was defective and I returned it. But I wanted to ask the list what outboard DSP units you might use and whether you think they're worth it or not. I have a hard time forking over $250 for the K2 internal DSP unit. > > I have the KAF2 installed and it's very effective, but I'd really like to get rid of some of that QRN that's always present ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Millerhill
On 12-08-09 03:12 PM, Stephen Roberts wrote:
> But I wanted to ask the list what outboard DSP units you > might use and whether you think they're worth it or not. [snip] > I have the KAF2 installed and it's very effective, but I'd really like to > get rid of some of that QRN that's always present on 40m. I have a KAF2 and it is a nice device to have that has little impact on the current drain from the batteries. That is important to me because my K2 is almost always running off it's internal battery. The only DSP unit I have used with a radio is a JPS NIR-10 outboard DSP unit which I used with a Yaesu FT-890. With some noise it did such a good job you had to look at the radio to see if it was still on. With steady tones it worked a treat. CW would turn in to just clicks and all those people tuning up on wouldn't be noticed other than by a slight reduction in the level of the signal you were listening to (due to the IF reacting to the tuner upper). I found it was worth buying the DSP unit. Having the noise reduced (substantially on higher bands), makes ragchew or long periods of listening much more pleasant. During net operations, or while trying to bag that rare (DX) station you need for the log, multi-notch filtering really helps save ones ears from the tuner-uppers. The KDSP2 unit would be handy if you find your operating could benefit from what it can offer for just the "cost" of a slight increase in current draw. Being built in to the radio, it will always be there if you go portable. An external DSP has the advantage of being usable with other radios but would be complicates things when it comes to having to get power for it during times of portable operation. -- Cheers! Kevin. http://www.ve3syb.ca/ |"Nerds make the shiny things that distract Owner of Elecraft K2 #2172 | the mouth-breathers, and that's why we're | powerful!" #include <disclaimer/favourite> | --Chris Hardwick ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Millerhill
The MFJ-784B works very well, I much prefer it over my K2's internal DSP. I picked one up used for $100 and think it well worth the cost new. It is fully tuneable and the DSP noise reduction allows you to adjust how 'aggressively' it works in addition to noise level. The auto notch and manual notch work great.
It is well worth reading the manual cover to cover to fully utilize its features. MFJ did good with this one. Andy N3LCW |
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Hello Andy,
If you don't need a DSP WITHIN the K2, any other outbroad unit should be good enough. KDSP2 is only at the AF stage and has no filtering in the IF stage. TNX & 73, Johnny VR2XMC ________________________________ 寄件人︰ andyatd <[hidden email]> 收件人︰ [hidden email] 傳送日期︰ 2012年10月4日 (週四) 12:49 AM 主題︰ Re: [Elecraft] DSP for K2 The MFJ-784B works very well, I much prefer it over my K2's internal DSP. I picked one up used for $100 and think it well worth the cost new. It is fully tuneable and the DSP noise reduction allows you to adjust how 'aggressively' it works in addition to noise level. The auto notch and manual notch work great. It is well worth reading the manual cover to cover to fully utilize its features. MFJ did good with this one. Andy N3LCW -- View this message in context: http://elecraft.365791.n2.nabble.com/DSP-for-K2-tp7560695p7563655.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] 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:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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