James
I think it would be worth remembering that much of the selectivity of the K3 is carried out by the DSP, and it does it very well. It's debatable whether you would need all the roofing filters in your list. They're quite easy to add at a later date. You could spread the cost over a period of time if you wanted. I believe you will need the FM and AM filters in the sub receiver if you are using the sub to monitor those modes at the appropriate bandwidth. Regards John G4ZTR _____ From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James Sarte Sent: 10 February 2009 02:02 To: elecraft@mailman.qth.net Subject: [Elecraft] K3 sub-receiver usefulness? Hello group, Someone mentioned in one of the reflector emails that the new firmware under development will allow independent band switching/monitoring between VFO's without a sub receiver. Am I correct in my understanding then that without a sub receiver, this firmware will allow tuning and monitoring of separate bands? If that is indeed the case, can someone please clarify for me how that can accomplished with a single receiver? On a separate note, apart from diversity receive, I'm curious to know how other people are utilizing their sub receiver? The reason I ask is I'm finalizing my purchase of a K3, and am trying to determine whether it's necessary to fully load up both receivers now. At this point, I'm ready to purchase 2 general coverage modules plus 2 each of the following filters: 250KHz, 400KHz, 2.8Khz, 6KHz, 13KHz. I'd like to have the ability to monitor PSK31, FM or SW broadcast on the sub, while monitoring phone or engaging in a phone QSO on the main; both receivers being on separate bands. That's just one example. Another could be to monitor SW broadcast on the main while listening to 10m FM on the sub. Do I need to install the AM or FM filters in the sub to monitor SW or FM or can the sub's DSP take care of it? 73, James KC2UEE __________ Information from ESET NOD32 Antivirus, version of virus signature database 3840 (20090210) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
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