Re: [Elecraft] 500Hz Filter Offset Question
"Out of Stock" Scott will order a batch if there is enough interest, usually 10 minimum. 73,Ed W0YK Original message From: donov...@starpower.net Date: 1/14/19 21:24 (GMT-08:00) To: Elecraft Subject: Re: [Elecraft] 500Hz Filter Offset Question oops. The Elecraft 500 Hz 8 pole filter is discontinued... http://www.inrad.net/product.php?productid=316=140 73 Frank W3LPL - Original Message - From: "Mark Musick" To: "Rich" , donw...@embarqmail.com, "Elecraft" Sent: Tuesday, January 15, 2019 12:17:05 AM Subject: Re: [Elecraft] 500Hz Filter Offset Question INRAD has 500Hz 8 pole filters for the K3/K3S. I have one in the main receiver and one in the sub-receiver. Mark, WB9CIF -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Rich Sent: Monday, January 14, 2019 23:56 To: donw...@embarqmail.com; Elecraft Subject: Re: [Elecraft] 500Hz Filter Offset Question Thanks all. I did read the manual, but it would help if I had read the entire paragraph and not just one sentence. In this case they sent me all matching offsets, so they are all the same. I was surprised that they do not have 500hz 8 pole. Oh well, back to putting the radio back together Ric On 1/14/2019 18:42 PM, Don Wilhelm wrote: > Rich, > > Wrong - you must enter the offset frequency. > Related - what is true is that you do not need matched filters in the > main and the subRX for Diversity reception with the new synthesizers. > > There are plots on the Elecraft website showing the filter response. I > don't recall if the 500 Hz filters are included. > > 73, > Don W3FPR > > On 1/14/2019 5:30 PM, Rich wrote: >> >> So now that I have 5 pole filters, I seem to recall that entering the >> offset freq is not required any longer on the K3S, is that true? >> >> Also does a K3 upgraded with K3S features need the offset freq? >> >> I should mention that they are all matched. >> > __ 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 Message delivered to markmus...@outlook.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 Message delivered to donov...@starpower.net __ 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 Message delivered to e...@w0yk.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 500Hz Filter Offset Question
oops. The Elecraft 500 Hz 8 pole filter is discontinued... http://www.inrad.net/product.php?productid=316=140 73 Frank W3LPL - Original Message - From: "Mark Musick" To: "Rich" , donw...@embarqmail.com, "Elecraft" Sent: Tuesday, January 15, 2019 12:17:05 AM Subject: Re: [Elecraft] 500Hz Filter Offset Question INRAD has 500Hz 8 pole filters for the K3/K3S. I have one in the main receiver and one in the sub-receiver. Mark, WB9CIF -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Rich Sent: Monday, January 14, 2019 23:56 To: donw...@embarqmail.com; Elecraft Subject: Re: [Elecraft] 500Hz Filter Offset Question Thanks all. I did read the manual, but it would help if I had read the entire paragraph and not just one sentence. In this case they sent me all matching offsets, so they are all the same. I was surprised that they do not have 500hz 8 pole. Oh well, back to putting the radio back together Ric On 1/14/2019 18:42 PM, Don Wilhelm wrote: > Rich, > > Wrong - you must enter the offset frequency. > Related - what is true is that you do not need matched filters in the > main and the subRX for Diversity reception with the new synthesizers. > > There are plots on the Elecraft website showing the filter response. I > don't recall if the 500 Hz filters are included. > > 73, > Don W3FPR > > On 1/14/2019 5:30 PM, Rich wrote: >> >> So now that I have 5 pole filters, I seem to recall that entering the >> offset freq is not required any longer on the K3S, is that true? >> >> Also does a K3 upgraded with K3S features need the offset freq? >> >> I should mention that they are all matched. >> > __ 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 Message delivered to markmus...@outlook.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 Message delivered to donov...@starpower.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 500Hz Filter Offset Question
INRAD has 500Hz 8 pole filters for the K3/K3S. I have one in the main receiver and one in the sub-receiver. Mark, WB9CIF -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Rich Sent: Monday, January 14, 2019 23:56 To: donw...@embarqmail.com; Elecraft Subject: Re: [Elecraft] 500Hz Filter Offset Question Thanks all. I did read the manual, but it would help if I had read the entire paragraph and not just one sentence. In this case they sent me all matching offsets, so they are all the same. I was surprised that they do not have 500hz 8 pole. Oh well, back to putting the radio back together Ric On 1/14/2019 18:42 PM, Don Wilhelm wrote: > Rich, > > Wrong - you must enter the offset frequency. > Related - what is true is that you do not need matched filters in the > main and the subRX for Diversity reception with the new synthesizers. > > There are plots on the Elecraft website showing the filter response. I > don't recall if the 500 Hz filters are included. > > 73, > Don W3FPR > > On 1/14/2019 5:30 PM, Rich wrote: >> >> So now that I have 5 pole filters, I seem to recall that entering the >> offset freq is not required any longer on the K3S, is that true? >> >> Also does a K3 upgraded with K3S features need the offset freq? >> >> I should mention that they are all matched. >> > __ 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 Message delivered to markmus...@outlook.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 500Hz Filter Offset Question
Thanks all. I did read the manual, but it would help if I had read the entire paragraph and not just one sentence. In this case they sent me all matching offsets, so they are all the same. I was surprised that they do not have 500hz 8 pole. Oh well, back to putting the radio back together Ric On 1/14/2019 18:42 PM, Don Wilhelm wrote: Rich, Wrong - you must enter the offset frequency. Related - what is true is that you do not need matched filters in the main and the subRX for Diversity reception with the new synthesizers. There are plots on the Elecraft website showing the filter response. I don't recall if the 500 Hz filters are included. 73, Don W3FPR On 1/14/2019 5:30 PM, Rich wrote: So now that I have 5 pole filters, I seem to recall that entering the offset freq is not required any longer on the K3S, is that true? Also does a K3 upgraded with K3S features need the offset freq? I should mention that they are all matched. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 500Hz Filter Offset Question
Rich, Wrong - you must enter the offset frequency. Related - what is true is that you do not need matched filters in the main and the subRX for Diversity reception with the new synthesizers. There are plots on the Elecraft website showing the filter response. I don't recall if the 500 Hz filters are included. 73, Don W3FPR On 1/14/2019 5:30 PM, Rich wrote: So now that I have 5 pole filters, I seem to recall that entering the offset freq is not required any longer on the K3S, is that true? Also does a K3 upgraded with K3S features need the offset freq? I should mention that they are all matched. __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 500Hz Filter Offset Question
This has to do with the synthesizer boards. I believe the answer is that you don’t need to match them with the new synthesizers. You may need to still enter the offsets, however. 73! Jack, W6FB > On Jan 14, 2019, at 2:30 PM, Rich wrote: > > I just received my 500hz filters from Elecraft. I guess I assumed they were > 8 pole, however they are 5 pole. The web page does not specify 5 or 8 pole, > or I did not navigate the webpage properly. > > So now that I have 5 pole filters, I seem to recall that entering the offset > freq is not required any longer on the K3S, is that true? > > Also does a K3 upgraded with K3S features need the offset freq? > > I should mention that they are all matched. > > Is there a graphic representation of these 5 pole filters available? > > Thanks > > Rich > > K3RWN > > __ > 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 > Message delivered to jackbrin...@me.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 500Hz Filter Offset Question
It looks to me like you still have to set the offsets. See manual. It doesn't appear there is any difference between the K3 and K3s as far as filter offsets. When I set up my K3, I tried to get the 200 Hz filter offset "just right", so the noise would sound exactly the same in USB or LSB (CW or CW REV). I found that the filter drifted around quite a bit with temperature. So, if you have the narrow filters, let the temperature stabilize before setting the offset. Wider filters are much less critical. 73, Scott K9MA On 1/14/2019 17:13, Nr4c wrote: Well they used to be difrentisted from the 8 pole filters haven’t looked for them on new site. Eight pole filters have a metal can enclosing them. The five pole filters are just exposed PC boards. I think I have offsets set on my K3S for the 200 Hz filters. Sent from my iPhone ...nr4c. bill On Jan 14, 2019, at 5:30 PM, Rich wrote: I just received my 500hz filters from Elecraft. I guess I assumed they were 8 pole, however they are 5 pole. The web page does not specify 5 or 8 pole, or I did not navigate the webpage properly. So now that I have 5 pole filters, I seem to recall that entering the offset freq is not required any longer on the K3S, is that true? Also does a K3 upgraded with K3S features need the offset freq? I should mention that they are all matched. Is there a graphic representation of these 5 pole filters available? Thanks Rich K3RWN -- Scott K9MA k...@sdellington.us __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] 500Hz Filter Offset Question
Well they used to be difrentisted from the 8 pole filters haven’t looked for them on new site. Eight pole filters have a metal can enclosing them. The five pole filters are just exposed PC boards. I think I have offsets set on my K3S for the 200 Hz filters. Sent from my iPhone ...nr4c. bill > On Jan 14, 2019, at 5:30 PM, Rich wrote: > > I just received my 500hz filters from Elecraft. I guess I assumed they were > 8 pole, however they are 5 pole. The web page does not specify 5 or 8 pole, > or I did not navigate the webpage properly. > > So now that I have 5 pole filters, I seem to recall that entering the offset > freq is not required any longer on the K3S, is that true? > > Also does a K3 upgraded with K3S features need the offset freq? > > I should mention that they are all matched. > > Is there a graphic representation of these 5 pole filters available? > > Thanks > > Rich > > K3RWN > > __ > 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 > Message delivered to n...@widomaker.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 Message delivered to arch...@mail-archive.com
