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If I were to buy the K3 subreceiver I understand that performance is best if the filters all line up and match. That is, the filters in the main receiver should be duplicated in the subreceiver.
So, what is the downside if this is not done. The main reason I am considering the KRX3 is for DX split operation. I have no plans (now or likely in future) for other specialized uses such as diversity reception. My main operation is CW and so in addition to the standard 2.7 KHz filter, I would like to only buy my 400 and 200 Hz filters. My main receiver from the top down are: 6.0 KHz, 2.7 KHz, 1.8 KHz, 400 Hz, 200 Hz (actually, the 200 Hz is on order). Are filters expected to be in the same positional slots for both receivers? Thanks for the help. 73, phil, K7PEH ______________________________________________________________ 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 Message delivered to [hidden email] |
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Phil,
I don' t think it is necessary to have the same number of filters in each receiver. My K3 main RX has 13khz, 6khz, 2.8khz, 500hz, and 200hz filters. My subreciever has 13khz, 2.8khz and 500hz filters. This gives me great flexibility with the subreciever and saved me lots of money, without sacrificing too much performance. My configuration still allows me to do diversity receiver on SSB and CW if I desire, and performs as well as almost every other amateur rig on the market. Other might disagree, but for me, because I'm on a budget, this configuration gives me a good balance of flexibility and performance in my subreceiver. 73, Scott, N9AA On 4/6/14 12:22 AM, Phil Hystad wrote: > If I were to buy the K3 subreceiver I understand that performance is best if the filters all line up and match. That is, the filters in the main receiver should be duplicated in the subreceiver. > > So, what is the downside if this is not done. The main reason I am considering the KRX3 is for DX split operation. I have no plans (now or likely in future) for other specialized uses such as diversity reception. > > My main operation is CW and so in addition to the standard 2.7 KHz filter, I would like to only buy my 400 and 200 Hz filters. My main receiver from the top down are: 6.0 KHz, 2.7 KHz, 1.8 KHz, 400 Hz, 200 Hz (actually, the 200 Hz is on order). > > Are filters expected to be in the same positional slots for both receivers? > > Thanks for the help. > > 73, phil, K7PEH > > ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Phil Hystad-3
Phil,
The only reason to use matched filters is diversity mode reception. For split operation, you want to have enough filtering to work your way through the pileup to select your TX frequency. For many ops, that means using a wider filter to find that proper TX slot, while others prefer a more narrow filter. 73, Don W3FPR On 4/6/2014 12:22 AM, Phil Hystad wrote: > If I were to buy the K3 subreceiver I understand that performance is best if the filters all line up and match. That is, the filters in the main receiver should be duplicated in the subreceiver. > > So, what is the downside if this is not done. The main reason I am considering the KRX3 is for DX split operation. I have no plans (now or likely in future) for other specialized uses such as diversity reception. > > ______________________________________________________________ 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 Message delivered to [hidden email] |
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