Re: [Elecraft] Suggestions for K2 Options
Chip I agree with Bernie on all points and I actually have the same setup as him and 99% of the time I just use the crystal filters and the attenuators. I do use the timewave from time to time on really strong signal. I find that using the attenuator better at digging out weak signals out of the noise. This is when the K2 receiver shines. Ariel NY4G Sent from my iPhone On Dec 17, 2011, at 12:11 PM, "Bernie KF0QS" wrote: > Chip: > > Thanks for your reply. Since I can't afford the DSP right now, I'm going to > go with the audio filter. > > Here is my thought on your question of the advantage of the DSP over the > crystal filter passband. It is just my guess (and I could be off base) but > I suspect that the DSP gives you three advantages over the crystal filters. > First, my guess is that you can make the passband edge sharper using the > DSP. Secondly, whereas the crystal filters are somewhat fixed, you can > likely customize the passband more with a DSP. I have an audio DSP (from > Timewave) and have quite a lot of options with that thing. Thirdly, if > there is a way to link the K2 DSP to a computer, you can likely get software > updates from Elecraft? > > The reason I'm not that interested in spending the money for the DSP is > that, despite these advantages, I'm not convinced that a DSP will result in > that much more of an advantage. In other words, though technically I may be > able to accomplish more with a DSP, I'm not convinced that my ear and brain > will be able to hear and appreciate it. And on those rare occasions when I > can hear and appreciate it, I have to then decide if those rare occasions > are worth the extra money. > > I too would be interested to hear what others think. > > Thanks again for your reply. > > 73 de Bernie, KF0QS > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Suggestions-for-K2-Options-tp7084004p7104343.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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Suggestions for K2 Options
Bernie, If you already have an external DSP you can get nearly the same effect with it as you can with the internal one. I have that setup here - K2 w/KAF2 and Timewave 59+ - and for comparison recently borrowed a friends K2 which had the internal DSP. I could find no situation where my kludgy setup did not work as well as the internal DSP. In fact, I prefer my setup. Not as elegant but just as effective. Most of the time I prefer to use the KAF2 since it does not have the high pitched noise generated by the KDSP. The Timewave does have its own noise but I can turn that off with the push of a button. 73 de dave ab9ca/4 On 12/17/11 11:11 AM, Bernie KF0QS wrote: > Chip: > > Thanks for your reply. Since I can't afford the DSP right now, I'm going to > go with the audio filter. > > Here is my thought on your question of the advantage of the DSP over the > crystal filter passband. It is just my guess (and I could be off base) but > I suspect that the DSP gives you three advantages over the crystal filters. > First, my guess is that you can make the passband edge sharper using the > DSP. Secondly, whereas the crystal filters are somewhat fixed, you can > likely customize the passband more with a DSP. I have an audio DSP (from > Timewave) and have quite a lot of options with that thing. Thirdly, if > there is a way to link the K2 DSP to a computer, you can likely get software > updates from Elecraft? > > The reason I'm not that interested in spending the money for the DSP is > that, despite these advantages, I'm not convinced that a DSP will result in > that much more of an advantage. In other words, though technically I may be > able to accomplish more with a DSP, I'm not convinced that my ear and brain > will be able to hear and appreciate it. And on those rare occasions when I > can hear and appreciate it, I have to then decide if those rare occasions > are worth the extra money. > > I too would be interested to hear what others think. > > Thanks again for your reply. > > 73 de Bernie, KF0QS > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Suggestions-for-K2-Options-tp7084004p7104343.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:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Suggestions for K2 Options
Chip: Thanks for your reply. Since I can't afford the DSP right now, I'm going to go with the audio filter. Here is my thought on your question of the advantage of the DSP over the crystal filter passband. It is just my guess (and I could be off base) but I suspect that the DSP gives you three advantages over the crystal filters. First, my guess is that you can make the passband edge sharper using the DSP. Secondly, whereas the crystal filters are somewhat fixed, you can likely customize the passband more with a DSP. I have an audio DSP (from Timewave) and have quite a lot of options with that thing. Thirdly, if there is a way to link the K2 DSP to a computer, you can likely get software updates from Elecraft? The reason I'm not that interested in spending the money for the DSP is that, despite these advantages, I'm not convinced that a DSP will result in that much more of an advantage. In other words, though technically I may be able to accomplish more with a DSP, I'm not convinced that my ear and brain will be able to hear and appreciate it. And on those rare occasions when I can hear and appreciate it, I have to then decide if those rare occasions are worth the extra money. I too would be interested to hear what others think. Thanks again for your reply. 73 de Bernie, KF0QS -- View this message in context: http://elecraft.365791.n2.nabble.com/Suggestions-for-K2-Options-tp7084004p7104343.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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Suggestions for K2 Options
The noise limiter of the DSP dramatically cuts the QRN at my QTH. It does make some CW signals less "pure" sounding, but its a good trade-off for me.. I almost never use the other filtering abilities of the DSP. I haven't yet learned what advantage that offers over just narrowing down the crystal filter passband. Maybe someone would like to comment on that? Chip AE5KA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
