This might be of interest.... <http://www.repeater-builder.com/tech-info/temperature-compensation.html>
Mike WA6ILQ At 07:12 PM 12/13/07, you wrote: >Thanks for the information Scott. Since the only difference I see is >the two capacitors, I wonder what makes it more stable. Perhaps it is a >difference in the crystal itself. Have you ever seen a place where the >subject of how the channel elements are individually temperature >compensated (as when you send your channel element into the crystal >manufacturer) is explained? > >Steve - N8AR > >--- In [email protected], "Scott Zimmerman" <[EMAIL PROTECTED]> >wrote: > > > > The only differnence that I have heard of is stability. As I remember > > someone telling me at a hamfest that the 1018's were higher stability >than > > the 1019's. If memory serves the 1018's are 2ppm?? According to the >channel > > chart here: http://repeater-builder.com/micor/micor-element-info.html >The > > 1019's are 5 ppm. So logically that would make the 1018's 2ppm. > > > > Long and short, I have always found them to be interchangeable in all >the > > situations I have encountered. > > > > Scott > > > > Scott Zimmerman > > Amateur Radio Call N3XCC > > 612 Barnett Road > > Boswell, PA 15531 > > ----- Original Message ----- > > From: "swellesleys" [EMAIL PROTECTED] > > To: [email protected] > > Sent: Sunday, December 09, 2007 1:17 AM > > Subject: [Repeater-Builder] KXN1018C versus KXN1019B Channel Element > > > > > > > Does anyone know the difference between the Motorola KXN1018C and >the > > > KXN1019B channel elements. I am working on a Micor based repeater >for > > > our local repeater group. The exciter board is a Motorola TLD5322A > > > which uses the KXN1019B channel element according to my Motorola >manual > > > (68P81013E65L). However, the exciter board I am using came with four > > > KXN1018C channel elements. I have compared the KXN1018C I have to >the > > > schematic and layout of the KXN1019B on Repeater-builder and the >only > > > difference I see for components which have values in the schematic >are > > > C1 (22pF instead of 36pF) and C4 (10pF instead of 9pF). > > > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > -- > > > No virus found in this incoming message. > > > Checked by AVG Free Edition. > > > Version: 7.5.503 / Virus Database: 269.16.17/1179 - Release Date: > > > 12/9/2007 11:06 AM > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > >
