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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Thanks for additional info, John.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>73, Helmut, DC6NY<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>Von:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> John C. Westmoreland, P.E. [mailto:john@westmorelandengineering.com] <br><b>Gesendet:</b> Samstag, 18. November 2017 13:24<br><b>An:</b> Helmut Oeller <dc6ny@gmx.de><br><b>Cc:</b> HPSDR <hpsdr@openhpsdr.org><br><b>Betreff:</b> Re: [hpsdr] Themis<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hello Helmut,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Depends on the OXCO - for instance - for the MTI-270 - those specs are what that manufacturer claims.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>All of the board logic that has anything to do with the disciplining paths are all ECL - and are tightly controlled and timing is known.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I have nice on-board RF switches that I made out of all ECL. In fact, someone that helped me in the early days of this design has used<o:p></o:p></p></div><div><p class=MsoNormal>that RF switch concept (AFAIK).<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I'm still bringing up the board; so I'll do my best to keep people posted.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Power consumption is a little on the high side due to the ECL of course. I may be able to bring that down if I can remove some of the termination<o:p></o:p></p></div><div><p class=MsoNormal>resistors on some non-critical timing paths.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks for your interest.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>73's,<o:p></o:p></p></div><div><p class=MsoNormal>John<o:p></o:p></p></div><div><p class=MsoNormal>AJ6BC<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Sat, Nov 18, 2017 at 2:53 AM, Helmut Oeller <<a href="mailto:dc6ny@gmx.de" target="_blank">dc6ny@gmx.de</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal style='margin-bottom:12.0pt'>Hi John,<br><br>nice job, congratulations!<br><br>Are any data available, such as phase noise@10/100/1000 Hz offset, stability<br>after appropriate and averaged measuring time, output level@10 MHz port,<br>power consumption, switch-on delay, board dimensions etc.<br><br>73, Helmut, DC6NY<br><br>-----Ursprüngliche Nachricht-----<br>Von: Hpsdr [mailto:<a href="mailto:hpsdr-bounces@lists.openhpsdr.org">hpsdr-bounces@lists.openhpsdr.org</a>] Im Auftrag von John C.<br>Westmoreland, P.E.<br>Gesendet: Samstag, 18. November 2017 10:35<br>An: HPSDR <<a href="mailto:hpsdr@openhpsdr.org">hpsdr@openhpsdr.org</a>><br>Betreff: [hpsdr] Themis<br><br>***** High Performance Software Defined Radio Discussion List *****<br><br><o:p></o:p></p></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>