RE: [Elecraft] re: Improvements for the KX1
A lot of PDFs are available that are not searchable. ALL the Elecraft PDFs (and any I produce too) are searchable. It's the only sane way to do it, but it's certainly not the only wayg. Dan / WG4S / K2 #2456 -Original Message- From: Ian Stirling [mailto:[EMAIL PROTECTED] Sent: Monday, May 07, 2007 4:43 PM To: Dan Barker Subject: Re: [Elecraft] re: Improvements for the KX1 On Sunday 06 May 2007 08:44:33 you wrote: Adobe is your friend. I did a search for c181, and found the I.F.OUT you mention. Searching for I.F.OUT, I find it goes through J6/P6 to the Control board, and then to the AGC mixer(NE602). Thanks Dan - that's the first positive comment I've heard on the distribution of documents as PDF files. Even though they can be searched if they contain text and font information rather than a graphic image of text, I have only ever looked at a printed version if available. 73, Ian, G4ICV, AB2GR, K2 #4962 -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] re: Improvements for the KX1
Adobe is your friend. I did a search for c181, and found the I.F.OUT you mention. Searching for I.F.OUT, I find it goes through J6/P6 to the Control board, and then to the AGC mixer(NE602). Dan / WG4S / K2 #2456 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Ian Stirling Sent: Saturday, May 05, 2007 11:01 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] re: Improvements for the KX1 On Saturday 05 May 2007 22:24:11 Joseph Trombino Jr wrote: Correct IanI didn't count the last two xtals since I believe these two xtals are used more for removing I.F. noise than for providing selectivityat least this is what has been mentioned in other receiver articles I have read. Joe, The bandwidth of the two is affected by the same filter bandwidth controlling voltage, V XFIL2, on an MV209 diode. I wonder how it varies with the bandwidth of the five using 1SV149 diodes. I see also that there is a mysterious (to me, I don't see where it goes) IF out via C181 that is indeed after only the first five crystals. 73 Ian, G4ICV, AB2GR, K2 #4962 -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] re: Improvements for the KX1
Joe, If you can figure out how to put them inside that already crowded enclosure (and still maintain it as a kit), then yes a 4 or 5 pole filter would be nice - BUT ... 73, Don W3FPR Joseph Trombino Jr wrote: I'd really like to see another xtal or two added to the KX1 I.F. filter3 poles just doesn't get it...the 4 pole filter in the K1 and 5 pole filter in the K2 are noticeably better than the 3 pole filter in the KX1. 73, Joe W2KJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] re: Improvements for the KX1
On Saturday 05 May 2007 20:44:39 Joseph Trombino Jr wrote: I'd really like to see another xtal or two added to the KX1 I.F. filter3 poles just doesn't get it...the 4 pole filter in the K1 and 5 pole filter in the K2 are noticeably better than the 3 pole filter in the KX1. The K2 has seven crystals in the IF filter. There are five before the IF amplifier and two more before the product detector. Ian, G4ICV, AB2GR, K2 #4962 -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] re: Improvements for the KX1
- Original Message - From: Ian Stirling [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Saturday, May 05, 2007 10:13 PM Subject: Re: [Elecraft] re: Improvements for the KX1 On Saturday 05 May 2007 20:44:39 Joseph Trombino Jr wrote: I'd really like to see another xtal or two added to the KX1 I.F. filter3 poles just doesn't get it...the 4 pole filter in the K1 and 5 pole filter in the K2 are noticeably better than the 3 pole filter in the KX1. The K2 has seven crystals in the IF filter. There are five before the IF amplifier and two more before the product detector. Ian, G4ICV, AB2GR, K2 #4962 Correct IanI didn't count the last two xtals since I believe these two xtals are used more for removing I.F. noise than for providing selectivityat least this is what has been mentioned in other receiver articles I have read. 73, Joe W2KJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] re: Improvements for the KX1
On Saturday 05 May 2007 22:24:11 Joseph Trombino Jr wrote: Correct IanI didn't count the last two xtals since I believe these two xtals are used more for removing I.F. noise than for providing selectivityat least this is what has been mentioned in other receiver articles I have read. Joe, The bandwidth of the two is affected by the same filter bandwidth controlling voltage, V XFIL2, on an MV209 diode. I wonder how it varies with the bandwidth of the five using 1SV149 diodes. I see also that there is a mysterious (to me, I don't see where it goes) IF out via C181 that is indeed after only the first five crystals. 73 Ian, G4ICV, AB2GR, K2 #4962 -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
