K3 Dual PB
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Hi
I noticed that the dual PB function only works if the mode is cw and dual PB is set to APF in the tech mode menus. Is there a downside to always leaving this to APF as opposed to NOR? I mean you can turn APF on or off if set to APF, but not if set to NOR. Does the NOR enable another function? Thanks, Tom ______________________________________________________________ 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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Tom,
See page 35 of the K3 manual. If APF is on, the SHIFT control set the audio frequency that you wish to hear. NORM restores that audio frequency to your set sidetone pitch - no other function is enabled. The APF filter is quite narrow. While there is no downside to leaving it enabled, your tuning filters will be very narrow - good for digging signals 'out of the mud', but not good (IMHO) for tuning around to see what other signals may be present on the band. I would suggest APF off for general tuning, and turn it on when you have to dig for a signal that otherwise might be buried in the noise or QRM. 73, Don W3FPR On 7/14/2014 5:10 PM, Tom wrote: > Hi > I noticed that the dual PB function only works if the mode is cw and dual PB is set to APF in the tech mode menus. > Is there a downside to always leaving this to APF as opposed to NOR? I mean you can turn APF on or off if set to APF, but not if set to NOR. Does the NOR enable another function? > Thanks, Tom > ______________________________________________________________ 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 tomb18
Hi
OK got it now. I was doing some programming of these functions looking mainly at the api and things didn't seem to make sense. Thanks! -------- Original message -------- From: Don Wilhelm <[hidden email]> Date: 14/07/2014 9:08 PM (GMT-05:00) To: Tom <[hidden email]>,Elecraft Mailing list <[hidden email]> Subject: Re: [Elecraft] K3 Dual PB Tom, See page 35 of the K3 manual. If APF is on, the SHIFT control set the audio frequency that you wish to hear. NORM restores that audio frequency to your set sidetone pitch - no other function is enabled. The APF filter is quite narrow. While there is no downside to leaving it enabled, your tuning filters will be very narrow - good for digging signals 'out of the mud', but not good (IMHO) for tuning around to see what other signals may be present on the band. I would suggest APF off for general tuning, and turn it on when you have to dig for a signal that otherwise might be buried in the noise or QRM. 73, Don W3FPR On 7/14/2014 5:10 PM, Tom wrote: > Hi > I noticed that the dual PB function only works if the mode is cw and dual PB is set to APF in the tech mode menus. > Is there a downside to always leaving this to APF as opposed to NOR? I mean you can turn APF on or off if set to APF, but not if set to NOR. Does the NOR enable another function? > Thanks, Tom > ______________________________________________________________ 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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I've found that the APF is very sensitive to the multitude of AGC
settings available. I haven't actually broken the code yet, but there are times an inaudible signal without APF rises to "copyable enough to get a Q" with APF. Other times, not so much. Just one more way to learn how to use my K3. :-) 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org On 7/14/2014 7:25 PM, Tom wrote: > Hi > OK got it now. > I was doing some programming of these functions looking mainly at the api and things didn't seem to make sense. > Thanks! > > -------- Original message -------- > From: Don Wilhelm <[hidden email]> > Date: 14/07/2014 9:08 PM (GMT-05:00) > To: Tom <[hidden email]>,Elecraft Mailing list <[hidden email]> > Subject: Re: [Elecraft] K3 Dual PB > > Tom, > > See page 35 of the K3 manual. > > If APF is on, the SHIFT control set the audio frequency that you wish to > hear. NORM restores that audio frequency to your set sidetone pitch - > no other function is enabled. > > The APF filter is quite narrow. While there is no downside to leaving > it enabled, your tuning filters will be very narrow - good for digging > signals 'out of the mud', but not good (IMHO) for tuning around to see > what other signals may be present on the band. > > I would suggest APF off for general tuning, and turn it on when you have > to dig for a signal that otherwise might be buried in the noise or QRM. ______________________________________________________________ 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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