{"id":227,"date":"2024-09-09T11:17:53","date_gmt":"2024-09-09T03:17:53","guid":{"rendered":"https:\/\/www.bihec.com\/think-srs\/?p=227"},"modified":"2024-09-09T11:17:53","modified_gmt":"2024-09-09T03:17:53","slug":"fs740","status":"publish","type":"post","link":"https:\/\/www.bihec.com\/think-srs\/fs740\/","title":{"rendered":"SRS,Stanford Research Systems,\u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf,FS740"},"content":{"rendered":"<div class=\"flex-1 overflow-hidden\">\n<div class=\"h-full\">\n<div class=\"react-scroll-to-bottom--css-cssqw-79elbk h-full\">\n<div class=\"react-scroll-to-bottom--css-cssqw-1n7m0yu\">\n<div class=\"flex flex-col text-sm md:pb-9\">\n<article class=\"w-full text-token-text-primary focus-visible:outline-2 focus-visible:outline-offset-[-4px]\" dir=\"auto\" data-testid=\"conversation-turn-23\" data-scroll-anchor=\"true\">\n<div class=\"text-base py-[18px] px-3 md:px-4 m-auto w-full md:px-5 lg:px-1 xl:px-5\">\n<div class=\"mx-auto flex flex-1 gap-4 text-base md:gap-5 lg:gap-6 md:max-w-3xl\">\n<div class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex-col gap-1 md:gap-3\">\n<div class=\"flex max-w-full flex-col flex-grow\">\n<div class=\"min-h-[20px] text-message flex w-full flex-col items-end gap-2 whitespace-normal break-words [.text-message+&amp;]:mt-5\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"f52d6746-7f91-4b25-9c61-88227855541e\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p><strong><a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/srs\/\" title=\"View all posts in SRS\" target=\"_blank\">SRS<\/a>,<a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/stanford-research-systems\/\" title=\"View all posts in Stanford Research Systems\" target=\"_blank\">Stanford Research Systems<\/a>,<a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/%e6%97%b6%e9%97%b4%e4%b8%8e%e9%a2%91%e7%8e%87%e7%b3%bb%e7%bb%9f\/\" title=\"View all posts in \u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf\" target=\"_blank\">\u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf<\/a>,<a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/fs740\/\" title=\"View all posts in FS740\" target=\"_blank\">FS740<\/a><\/strong><\/p>\n<p><strong>FS740 GPS 10 MHz \u9891\u7387\u53c2\u8003<\/strong><\/p>\n<p><strong>\u6982\u8ff0<\/strong><\/p>\n<p>FS740 GPS \u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5177\u6709\u957f\u671f\u7a33\u5b9a\u6027\u7684 10 MHz \u9891\u7387\u53c2\u8003\uff0c\u5176\u7a33\u5b9a\u6027\u4f18\u4e8e 1 \u00d7 10^-13\u3002\u5185\u7f6e\u63a5\u6536\u5668\u53ef\u4ee5\u8ddf\u8e2a\u56db\u5927 GNSS \u661f\u5ea7\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\uff1aGPS\u3001GLONASS\u3001\u5317\u6597\u6216\u4f3d\u5229\u7565\u3002\u8be5\u4eea\u5668\u8fd8\u53ef\u4ee5\u5bf9\u5916\u90e8\u4e8b\u4ef6\u8fdb\u884c\u65f6\u95f4\u6807\u8bb0\uff08\u76f8\u5bf9\u4e8e UTC \u6216 GPS\uff09\u5e76\u6d4b\u91cf\u7528\u6237\u8f93\u5165\u7684\u9891\u7387\u3002\u4eea\u5668\u5177\u6709 DDS \u5408\u6210\u7684\u9891\u7387\u8f93\u51fa\u3001\u53ef\u8c03\u901f\u7387\uff08\u548c\u5bbd\u5ea6\uff09\u8109\u51b2\u8f93\u51fa\u4ee5\u53ca\u7528\u4e8e\u4efb\u610f\u6ce2\u5f62\uff08\u5305\u62ec IRIG-B \u65f6\u95f4\u7801\u8f93\u51fa\uff09\u7684 AUX \u8f93\u51fa\u3002<\/p>\n<p><strong>\u6807\u51c6\u65f6\u95f4\u57fa\u51c6<\/strong> \u63d0\u4f9b 1 \u00d7 10^-9 \u7684\u77ed\u671f\u9891\u7387\u7a33\u5b9a\u6027\u548c\u5c0f\u4e8e -105 dBc\/Hz\uff0810 Hz \u504f\u79fb\uff09\u7684\u76f8\u4f4d\u566a\u58f0\u3002\u53ef\u9009\u7684 OCXO\uff08\u52a0\u70ed\u6676\u4f53\u632f\u8361\u5668\uff09\u65f6\u95f4\u57fa\u51c6\u63d0\u4f9b 1 \u00d7 10^-11 \u7684\u77ed\u671f\u9891\u7387\u7a33\u5b9a\u6027\u548c\u5c0f\u4e8e -130 dBc\/Hz\uff0810 Hz \u504f\u79fb\uff09\u7684\u76f8\u4f4d\u566a\u58f0\u3002\u53ef\u9009\u7684\u94f7\u57fa\u51c6\u63d0\u4f9b 1 \u00d7 10^-12 \u7684\u77ed\u671f\u9891\u7387\u7a33\u5b9a\u6027\uff0c\u5c0f\u4e8e -130 dBc\/Hz\uff0810 Hz \u504f\u79fb\uff09\u7684\u76f8\u4f4d\u566a\u58f0\uff0c\u4ee5\u53ca\u5728\u4e22\u5931 GNSS \u4fe1\u53f7\u65f6\u4f18\u4e8e 1 \u03bcs\/\u5929 \u7684\u957f\u671f\u4fdd\u6301\u80fd\u529b\u3002<\/p>\n<p>\u8fd9\u4e24\u79cd\u53ef\u9009\u7684\u65f6\u95f4\u57fa\u51c6\uff08OCXO \u6216\u94f7\uff09\u5728\u4fdd\u6301\u7279\u6027\u65b9\u9762\u63d0\u4f9b\u663e\u8457\u6539\u8fdb\uff0c\u76f8\u4f4d\u566a\u58f0\u964d\u4f4e 30 dB\uff0cTDEV\uff08\u5747\u65b9\u6839\u65f6\u95f4\u504f\u5dee\uff09\u964d\u4f4e\u5341\u500d\u3002\u6709\u4e9b\u7528\u6237\u53ef\u80fd\u4e0d\u9700\u8981\u8fd9\u79cd\u6027\u80fd\u63d0\u5347\u3002\u4f8b\u5982\uff0c\u53ea\u9700\u8981 1 \u03bcs \u7cbe\u5ea6\u7684\u65f6\u95f4\u6807\u8bb0\u6216 1 \u00d7 10^-8 \u7cbe\u5ea6\u7684\u9891\u7387\u6d4b\u91cf\u7684\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u6807\u51c6\u65f6\u95f4\u57fa\u51c6\u3002<\/p>\n<p><strong>GNSS \u63a5\u6536\u5668<\/strong><\/p>\n<p>FS740 \u4e3a\u8fdc\u7a0b\u6709\u6e90 GNSS \u5929\u7ebf\u63d0\u4f9b\u504f\u7f6e\u3002\u8bbe\u5907\u7684 GNSS \u63a5\u6536\u5668\u53ef\u4ee5\u8ddf\u8e2a\u6240\u6709\u53ef\u89c6\u536b\u661f\uff0c\u81ea\u52a8\u6d4b\u91cf\u548c\u4fee\u6b63\u5176\u4f4d\u7f6e\uff0c\u7136\u540e\u5229\u7528\u6240\u6709\u63a5\u6536\u4fe1\u53f7\u6765\u4f18\u5316\u5176\u65f6\u95f4\u89e3\u7b97\u3002FS740 \u5bf9\u63a5\u6536\u5668\u7684 1 pps \u8f93\u51fa\u8fdb\u884c\u65f6\u95f4\u6807\u8bb0\uff0c\u4fee\u6b63\u63a5\u6536\u5668\u7684\u952f\u9f7f\u8bef\u5dee\uff0c\u7136\u540e\u5c06\u65f6\u95f4\u57fa\u51c6\u76f8\u4f4d\u9501\u5b9a\u5230 GNSS 1 pps\u3002\u4e24\u4e2a\u4eea\u5668\u4e4b\u95f4\u7684 TDEV \u5dee\u5f02\u4e3a\u51e0\u7eb3\u79d2\u3002<\/p>\n<p>\u5982\u679c GNSS \u4fe1\u53f7\u4e22\u5931\uff0c\u65f6\u95f4\u57fa\u51c6\u5c06\u4fdd\u6301\u5728\u6700\u540e\u9501\u5b9a\u7684\u9891\u7387\u503c\u3002\u65f6\u95f4\u57fa\u51c6\u7684\u8001\u5316\u6216\u9891\u7387\u6f02\u79fb\u8303\u56f4\u4e3a\u6807\u51c6\u65f6\u95f4\u57fa\u51c6 \u00b12 ppm\uff0cOCXO \u00b10.05 ppm\/\u5e74\u53ca \u00b10.002 ppm\uff080 \u81f3 45\u00b0C\uff09\uff0c\u94f7\u57fa\u51c6 \u00b10.001 ppm\/\u5e74\u53ca \u00b10.0001 ppm\uff080 \u81f3 45\u00b0C\uff09\u3002<\/p>\n<p><strong>GNSS \u5929\u7ebf<\/strong><\/p>\n<p>\u60a8\u53ef\u4ee5\u9009\u62e9\u4ece SRS \u8d2d\u4e70 GNSS \u5929\u7ebf\uff0c\u6216\u4f7f\u7528\u7b2c\u4e09\u65b9\u5929\u7ebf\uff0c\u6216\u4f7f\u7528\u60a8\u8bbe\u65bd\u4e2d\u73b0\u6709\u7684 GNSS \u5929\u7ebf\u3002SRS \u5b9a\u65f6\u63a5\u6536\u5668\u8981\u6c42\u7684\u51c0\u589e\u76ca\uff08\u6263\u9664\u7535\u7f06\u635f\u8017\u540e\uff09\u4e3a +20 dBi \u81f3 +32 dBi\uff0c\u8fd9\u662f\u4ece\u5404\u79cd\u53ef\u7528\u7684\u6709\u6e90\u5929\u7ebf\u548c\u5178\u578b\u7535\u7f06\u957f\u5ea6\u4e2d\u975e\u5e38\u5e38\u89c1\u7684\u6c34\u5e73\u3002SRS \u5b9a\u65f6\u63a5\u6536\u5668\u7684\u5929\u7ebf\u8f93\u5165\u4e3a\u5973\u6027 BNC \u8fde\u63a5\u5668\uff0c\u63d0\u4f9b +5 V \u504f\u7f6e\uff0c\u8f93\u5165\u963b\u6297\u4e3a 50 \u03a9\u3002<\/p>\n<p>SRS \u63d0\u4f9b\u4e24\u79cd\u5929\u7ebf\u89e3\u51b3\u65b9\u6848\uff0c\u90fd\u914d\u6709 LNA\u3002\u6240\u6709\u7cfb\u7edf\u7ec4\u4ef6\u90fd\u5177\u6709 50 \u03a9 \u7684\u7279\u6027\u963b\u6297\u3002\u6709\u5173\u5929\u7ebf\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u70b9\u51fb\u6b64\u5904\u3002<\/p>\n<p><strong>\u56fe\u5f62\u7528\u6237\u754c\u9762<\/strong><\/p>\n<p>\u56fe\u5f62\u7528\u6237\u754c\u9762\u5141\u8bb8\u7528\u6237\u914d\u7f6e\u4eea\u5668\u5e76\u67e5\u770b\u65f6\u95f4\u548c\u9891\u7387\u6d4b\u91cf\u7ed3\u679c\u3002\u4eea\u5668\u53ef\u4ee5\u914d\u7f6e\u4e3a\u4e09\u79cd\u6a21\u5f0f\u4e4b\u4e00\uff1a\u6709\u4e24\u4e2a\u7528\u6237\u8f93\u5165\uff08\u4e00\u4e2a\u5728\u524d\u9762\u677f\uff0c\u4e00\u4e2a\u5728\u540e\u9762\u677f\uff09\u7528\u4e8e\u9891\u7387\u548c\u65f6\u95f4\u6807\u8bb0\u4e8b\u4ef6\u3002\u8f93\u5165\u5177\u6709\u53ef\u8c03\u8282\u7684\u9608\u503c\u548c\u659c\u7387\u3002\u9891\u7387\u6d4b\u91cf\u7684\u7cbe\u5ea6\u4e3a 1 \u00d7 10^-11\uff081\u79d2\uff09\uff0c1 \u00d7 10^-12\uff0810\u79d2\uff09\u548c 1 \u00d7 10^-13\uff08<a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/100\/\" title=\"View all posts in 100\" target=\"_blank\">100<\/a>\u79d2\uff09\u3002\u65f6\u95f4\u6807\u8bb0\u4ee5 1 ps \u5206\u8fa8\u7387\u62a5\u544a\uff0c\u4e0e OCXO \u548c\u94f7\u57fa\u51c6\u7684\u77ed\u671f\u7a33\u5b9a\u6027\u76f8\u5f53\u3002\u65f6\u95f4\u6807\u8bb0\u76f8\u5bf9\u4e8e UTC \u6216 GPS \u65f6\u95f4\u7684\u8bef\u5dee\u7ea6\u4e3a 10 ns rms\u3002<\/p>\n<p><strong>\u524d\u9762\u677f\u548c\u540e\u9762\u677f<\/strong><\/p>\n<p>FS740 \u540e\u9762\u677f\u6709\u4f4e\u76f8\u4f4d\u566a\u58f0\uff0810 Hz \u504f\u79fb\u4e0b\u4e3a -130 dBc\/Hz\uff09\u7684 10 MHz \u6b63\u5f26\u8f93\u51fa\uff0c\u5e45\u5ea6\u4e3a 1 Vrms\u3002\u901a\u8fc7\u53ef\u9009\u7684\u540e\u9762\u677f\u8f93\u51fa\u53ef\u63d0\u4f9b\u591a\u8fbe 15 \u4e2a\u989d\u5916\u7684 10 MHz \u8f93\u51fa\u526f\u672c\u3002<\/p>\n<p>FS740 \u524d\u9762\u677f\u548c\u540e\u9762\u677f\u7684 SINE \u8f93\u51fa\u53ef\u63d0\u4f9b 1 \u03bcHz \u5230 30.1 MHz \u7684\u6b63\u5f26\u8f93\u51fa\uff0c\u5206\u8fa8\u7387\u4e3a 1 \u03bcHz\uff0c\u6216\u56fa\u5b9a\u7684 100 MHz\uff0c\u5e45\u5ea6\u53ef\u8c03\u8303\u56f4\u4e3a 100 mV \u5230 1.2 Vrms\u3002\u901a\u8fc7\u53ef\u9009\u7684\u540e\u9762\u677f\u8f93\u51fa\u53ef\u63d0\u4f9b\u591a\u8fbe 15 \u4e2a\u989d\u5916\u7684 SINE \u8f93\u51fa\u526f\u672c\u3002<\/p>\n<p>FS740 \u524d\u9762\u677f\u548c\u540e\u9762\u677f\u7684 PULSE \u8f93\u51fa\u53ef\u4ee5\u63d0\u4f9b\u4f4e\u6296\u52a8\uff08&lt;50 ps rms\uff09\u8109\u51b2\uff0c\u9891\u7387\u8303\u56f4\u4ece 1 mHz \u5230 25 MHz\u3002PULSE \u8f93\u51fa\u5177\u6709\u76f8\u5bf9\u4e8e UTC \u7684\u53ef\u8c03\u76f8\u4f4d\uff0c\u8109\u51b2\u5bbd\u5ea6\u53ef\u4ee5\u8bbe\u7f6e\u4e3a\u6700\u7a84 5 ns\uff0c\u6216\u5bbd\u5ea6\u4e3a\u6574\u4e2a\u8109\u51b2\u5468\u671f\u51cf\u53bb 5 ns\uff0c\u5206\u8fa8\u7387\u4e3a 10 ps\u3002\u901a\u8fc7\u53ef\u9009\u7684\u540e\u9762\u677f\u8f93\u51fa\u53ef\u63d0\u4f9b\u591a\u8fbe 15 \u4e2a\u989d\u5916\u7684 PULSE \u8f93\u51fa\u526f\u672c\u3002<\/p>\n<p>FS740 \u524d\u9762\u677f\u548c\u540e\u9762\u677f\u7684 AUX \u8f93\u51fa\u53ef\u4ee5\u751f\u6210\u6807\u51c6\u6216\u4efb\u610f\u6ce2\u5f62\uff08\u6b63\u5f26\u6ce2\u3001\u68af\u5f62\u6ce2\u3001\u4e09\u89d2\u6ce2\u7b49\uff09\u3002AUX \u8f93\u51fa\u8fd8\u53ef\u4ee5\u63d0\u4f9b IRIG-B \u65f6\u95f4\u7801\u8f93\u51fa\u3002IRIG-B \u8f93\u51fa\u53ef\u63d0\u4f9b\u5bbd\u5ea6\u7f16\u7801\u8109\u51b2\u548c\u5e45\u5ea6\u8c03\u5236\u6b63\u5f26\u6ce2\uff08\u8f7d\u6ce2\u9891\u7387\u4ece 100 Hz \u5230 1 MHz\uff09\u3002\u901a\u8fc7\u53ef\u9009\u7684\u540e\u9762\u677f\u8f93\u51fa\u53ef\u63d0\u4f9b\u591a\u8fbe 15 \u4e2a\u989d\u5916\u7684 AUX \u8f93\u51fa\u526f\u672c\u3002<\/p>\n<p>\u540e\u9762\u677f\u6709\u4e00\u4e2a\u62a5\u8b66\u7ee7\u7535\u5668\uff0c\u5728\u7535\u6e90\u4e22\u5931\u6216\u5728\u7528\u6237\u5b9a\u4e49\u7684\u6761\u4ef6\u4e0b\u8bbe\u7f6e\uff0c\u5305\u62ec\uff1a\u65f6\u95f4\u57fa\u51c6\u6545\u969c\u3001GNSS \u63a5\u6536\u4e22\u5931\u6216\u65f6\u95f4\u57fa\u51c6\u4e0e GNSS \u4fe1\u53f7\u4e4b\u95f4\u7684\u76f8\u4f4d\u9501\u5b9a\u5931\u8d25\u3002\u8be5\u7ee7\u7535\u5668\u5177\u6709\u5e38\u5f00\u548c\u5e38\u95ed\u8f93\u51fa\u3002<\/p>\n<p><strong>\u5206\u914d\u653e\u5927\u5668<\/strong><\/p>\n<p>\u53ef\u9009\u7684\u5206\u914d\u653e\u5927\u5668\uff0c\u6bcf\u4e2a\u63d0\u4f9b 5 \u4e2a\u989d\u5916\u7684\u540e\u9762\u677f\u8f93\u51fa\u7528\u4e8e 10 MHz\u3001SINE\u3001PULSE\u3001AUX \u6216 IRIG-B \u8f93\u51fa\uff0c\u53ef\u4ee5\u5b89\u88c5\u3002\u6700\u591a\u53ef\u5b89\u88c5\u4e09\u4e2a\u5206\u914d\u653e\u5927\u5668\uff0c\u5e76\u53ef\u4ee5\u4ece\u524d\u9762\u677f\u914d\u7f6e\u3002\u6bcf\u4e2a\u8f93\u51fa\u90fd\u6709\u81ea\u5df1\u7684\u9a71\u52a8\u5668\uff0c\u63d0\u4f9b\u8f93\u51fa\u4e4b\u95f4\u7684\u9ad8\u9694\u79bb\u3002<\/p>\n<p><strong>\u901a\u4fe1<\/strong><\/p>\n<p>FS740 \u53ef\u4ee5\u901a\u8fc7\u5176\u4ee5\u592a\u7f51\u548c USB \u7aef\u53e3\u8fdb\u884c\u63a7\u5236\u548c\u67e5\u8be2\u3002\u4eea\u5668\u53ef\u4ee5\u4f7f\u7528\u5176\u5e7f\u6cdb\u7684\u9ad8\u7ea7\u547d\u4ee4\u96c6\u8fdb\u884c\u5b8c\u5168\u7f16\u7a0b\uff0c\u5e76\u4e14\u8fd8\u6709\u4e00\u4e2a\u514d\u8d39\u7684 GNSSDO \u5e94\u7528\u7a0b\u5e8f\uff0c\u4f7f\u53d1\u9001\u547d\u4ee4\u3001\u67e5\u770b\u4eea\u5668\u72b6\u6001\u548c\u66f4\u6539 FS740 \u914d\u7f6e\u53d8\u5f97\u5bb9\u6613\u3002<\/p>\n<\/div>\n<p><strong>FS740 \u89c4\u683c<\/strong><\/p>\n<p><strong>\u6807\u51c6 TCXO \u65f6\u95f4\u57fa\u51c6<\/strong><\/p>\n<ul>\n<li><strong>\u632f\u8361\u5668\u7c7b\u578b<\/strong>: \u52a0\u70ed\u63a7\u5236\uff0c3 \u7ea7 OT\uff0cAT \u5207\u6676\u4f53<\/li>\n<li><strong>\u6e29\u5ea6\u7a33\u5b9a\u6027<\/strong>: &lt;2 \u00d7 10^-6 (20 \u81f3 30 \u00b0C)<\/li>\n<li><strong>\u8001\u5316<\/strong>: &lt;5 ppm\/\u5e74\uff08\u672a\u4e0e GPS \u8fdb\u884c\u63a7\u5236\uff09<\/li>\n<li><strong>\u76f8\u4f4d\u566a\u58f0 (SSB)<\/strong>: &lt;-105 dBc\/Hz\uff08\u5178\u578b\u503c\uff09<\/li>\n<li><strong>\u7a33\u5b9a\u6027<\/strong>:\n<ul>\n<li>&lt;3 \u00d7 10^-10 (1 \u79d2)<\/li>\n<li>&lt;3 \u00d7 10^-10 (10 \u79d2)<\/li>\n<li>&lt;2 \u00d7 10^-10 (100 \u79d2)<\/li>\n<li>&lt;2 \u00d7 10^-11 (1000 \u79d2)<\/li>\n<li>&lt;1 \u00d7 10^-12 (24 \u5c0f\u65f6)<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u4fdd\u6301\u80fd\u529b<\/strong>: &lt;40 \u03bcs \/ 24 \u5c0f\u65f6<\/li>\n<\/ul>\n<p><strong>OCXO \u65f6\u95f4\u57fa\u51c6<\/strong><\/p>\n<ul>\n<li><strong>\u632f\u8361\u5668\u7c7b\u578b<\/strong>: \u52a0\u70ed\u63a7\u5236\uff0c3 \u7ea7 OT\uff0cSC \u5207\u6676\u4f53<\/li>\n<li><strong>\u6e29\u5ea6\u7a33\u5b9a\u6027<\/strong>: &lt;1 \u00d7 10^-9 (20 \u81f3 30 \u00b0C)<\/li>\n<li><strong>\u8001\u5316<\/strong>: &lt;0.2 ppm\/\u5e74\uff08\u672a\u4e0e GPS \u8fdb\u884c\u63a7\u5236\uff09<\/li>\n<li><strong>\u76f8\u4f4d\u566a\u58f0 (SSB)<\/strong>: &lt;-130 dBc\/Hz\uff08\u5178\u578b\u503c\uff09<\/li>\n<li><strong>\u7a33\u5b9a\u6027<\/strong>:\n<ul>\n<li>&lt;1 \u00d7 10^-11 (1 \u79d2)<\/li>\n<li>&lt;1 \u00d7 10^-11 (10 \u79d2)<\/li>\n<li>&lt;1.5 \u00d7 10^-11 (100 \u79d2)<\/li>\n<li>&lt;1 \u00d7 10^-11 (1000 \u79d2)<\/li>\n<li>&lt;5 \u00d7 10^-13 (24 \u5c0f\u65f6)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u94f7\u57fa\u51c6<\/strong><\/p>\n<ul>\n<li><strong>\u632f\u8361\u5668\u7c7b\u578b<\/strong>: \u52a0\u70ed\u63a7\u5236\uff0c3 \u7ea7 OT\uff0cSC \u5207\u6676\u4f53<\/li>\n<li><strong>\u7269\u7406\u5305<\/strong>: \u94f7\u84b8\u6c14\u9891\u7387\u9274\u522b\u5668<\/li>\n<li><strong>\u6e29\u5ea6\u7a33\u5b9a\u6027<\/strong>: &lt;1 \u00d7 10^-10 (20 \u81f3 30 \u00b0C)<\/li>\n<li><strong>\u8001\u5316<\/strong>: &lt;0.0005 ppm\/\u5e74\uff08\u672a\u4e0e GNSS \u8fdb\u884c\u63a7\u5236\uff09<\/li>\n<li><strong>\u76f8\u4f4d\u566a\u58f0 (SSB)<\/strong>: &lt;-130 dBc\/Hz\uff08\u5178\u578b\u503c\uff09<\/li>\n<li><strong>\u7a33\u5b9a\u6027<\/strong>:\n<ul>\n<li>&lt;3 \u00d7 10^-11 (1 \u79d2)<\/li>\n<li>&lt;1 \u00d7 10^-11 (10 \u79d2)<\/li>\n<li>&lt;3 \u00d7 10^-12 (100 \u79d2)<\/li>\n<li>&lt;2 \u00d7 10^-12 (1000 \u79d2)<\/li>\n<li>&lt;5 \u00d7 10^-13 (24 \u5c0f\u65f6)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>GNSS \u63a5\u6536\u5668<\/strong><\/p>\n<ul>\n<li><strong>\u536b\u661f\u83b7\u53d6\u65f6\u95f4<\/strong>: \u5c11\u4e8e 1 \u5206\u949f\uff08\u5178\u578b\u503c\uff09<\/li>\n<li><strong>\u5e74\u9274\u83b7\u53d6\u65f6\u95f4<\/strong>: \u5927\u7ea6 15 \u5206\u949f\uff08\u6301\u7eed\u8ddf\u8e2a\u536b\u661f\u65f6\uff09<\/li>\n<li><strong>\u9759\u6001\u5e94\u7528\u4f18\u5316<\/strong>: \u8fc7\u91cf\u786e\u5b9a\u65f6\u949f\u6a21\u5f0f\u4f7f\u63a5\u6536\u5668\u53ef\u4ee5\u4f7f\u7528\u6240\u6709\u536b\u661f\u8fdb\u884c\u5b9a\u65f6<\/li>\n<li><strong>UTC \u7cbe\u5ea6<\/strong>: &lt;100 ns<\/li>\n<li><strong>\u65f6\u95f4\u6f02\u79fb<\/strong>: &lt;15 ns rms\uff08\u5728\u8fc7\u91cf\u786e\u5b9a\u65f6\u949f\u6a21\u5f0f\u4e0b\uff09<\/li>\n<li><strong>\u5929\u7ebf\u5ef6\u8fdf\u4fee\u6b63\u8303\u56f4<\/strong>: \u00b10.1 s<\/li>\n<\/ul>\n<p><strong>\u6b63\u5f26\u8f93\u51fa<\/strong><\/p>\n<p>\uff0850 \u03a9 \u8d1f\u8f7d\uff09<\/p>\n<ul>\n<li><strong>\u9891\u7387\u8303\u56f4<\/strong>: 1 mHz \u81f3 30.1 MHz<\/li>\n<li><strong>\u9891\u7387\u5206\u8fa8\u7387<\/strong>: 1 \u03bcHz<\/li>\n<li><strong>\u9891\u7387\u8bef\u5dee<\/strong>: &lt;10 pHz + \u65f6\u95f4\u57fa\u51c6\u8bef\u5dee \u00d7 FC<\/li>\n<li><strong>\u76f8\u4f4d\u53ef\u8c03\u8282\u6027<\/strong>: 1 mDeg<\/li>\n<li><strong>\u76f8\u4f4d\u51c6\u786e\u6027<\/strong>: &lt;1 ns\uff08\u76f8\u5bf9\u4e8e\u5185\u90e8\u53c2\u8003\uff09<\/li>\n<li><strong>\u5e45\u5ea6<\/strong>: 10 mVpp \u81f3 1.414 Vpp<\/li>\n<li><strong>\u5e45\u5ea6\u5206\u8fa8\u7387<\/strong>: &lt;1 %<\/li>\n<li><strong>\u5e45\u5ea6\u51c6\u786e\u6027<\/strong>: \u00b15 %<\/li>\n<li><strong>\u8c10\u6ce2<\/strong>: &lt;-40 dBc<\/li>\n<li><strong>\u6742\u6563<\/strong>: &lt;-70 dBc<\/li>\n<li><strong>\u8f93\u51fa\u8026\u5408<\/strong>: DC, 50 \u03a9 \u00b12 %<\/li>\n<li><strong>\u7528\u6237\u8d1f\u8f7d<\/strong>: 50 \u03a9<\/li>\n<li><strong>\u53cd\u5411\u4fdd\u62a4<\/strong>: \u00b15 VDC<\/li>\n<\/ul>\n<p><strong>AUX \u8f93\u51fa<\/strong><\/p>\n<p>\uff0850 \u03a9 \u8d1f\u8f7d\uff09<\/p>\n<ul>\n<li><strong>\u8f93\u51fa\u9009\u9879<\/strong>: \u6b63\u5f26\u6ce2\u3001\u4e09\u89d2\u6ce2\u3001\u65b9\u6ce2\u3001100 MHz\u3001AM IRIG-B<\/li>\n<li><strong>\u9891\u7387\u8303\u56f4<\/strong>:\n<ul>\n<li>\u6b63\u5f26\u6ce2: 1 mHz \u81f3 10 MHz<\/li>\n<li>\u4e09\u89d2\u6ce2\u6216\u65b9\u6ce2: 1 mHz \u81f3 1 MHz<\/li>\n<li>100 MHz: 100 MHz<\/li>\n<li>AM IRIG-B: 1 kHz<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u9891\u7387\u5206\u8fa8\u7387<\/strong>: 1 \u03bcHz<\/li>\n<li><strong>\u9891\u7387\u8bef\u5dee<\/strong>: &lt;10 pHz + \u65f6\u95f4\u57fa\u51c6\u8bef\u5dee \u00d7 FC<\/li>\n<li><strong>\u76f8\u4f4d\u53ef\u8c03\u8282\u6027<\/strong>: 1 mDeg\uff08100 MHz \u6b63\u5f26\u6ce2\u8f93\u51fa\u4e0d\u53ef\u8c03\u6574\u76f8\u4f4d\uff09<\/li>\n<li><strong>\u5e45\u5ea6<\/strong>: 10 mVpp \u81f3 1.414 Vpp\uff08\u6b63\u5f26\u6ce2\u3001\u4e09\u89d2\u6ce2\u3001\u65b9\u6ce2\uff09<\/li>\n<li><strong>\u5e45\u5ea6\uff08100 MHz\uff09<\/strong>: 2.75 dBm \u00b10.5 dBm<\/li>\n<li><strong>\u5e45\u5ea6\u5206\u8fa8\u7387<\/strong>: &lt;1 %<\/li>\n<li><strong>\u5e45\u5ea6\u51c6\u786e\u6027<\/strong>: \u00b15 %<\/li>\n<li><strong>\u8c10\u6ce2<\/strong>: &lt;-40 dBc<\/li>\n<li><strong>\u6742\u6563<\/strong>: &lt;-70 dBc<\/li>\n<li><strong>\u8f93\u51fa\u8026\u5408<\/strong>: DC, 50 \u03a9 \u00b12 %<\/li>\n<li><strong>\u7528\u6237\u8d1f\u8f7d<\/strong>: 50 \u03a9<\/li>\n<li><strong>\u53cd\u5411\u4fdd\u62a4<\/strong>: \u00b15 VDC<\/li>\n<\/ul>\n<p><strong>\u8109\u51b2\u8f93\u51fa<\/strong><\/p>\n<ul>\n<li><strong>\u8f93\u51fa\u9009\u9879<\/strong>: \u5468\u671f\/\u5bbd\u5ea6\u3001\u9891\u7387\/\u5360\u7a7a\u6bd4\u3001\u8109\u51b2 IRIG-B<\/li>\n<li><strong>\u5468\u671f<\/strong>: 40 ns \u81f3 1000 s<\/li>\n<li><strong>\u5bbd\u5ea6<\/strong>: 5 ns \u81f3 (\u5468\u671f &#8211; 5 ns)<\/li>\n<li><strong>\u5468\u671f\/\u5bbd\u5ea6\u5206\u8fa8\u7387<\/strong>: 1 ps<\/li>\n<li><strong>\u9891\u7387\u8303\u56f4<\/strong>: 1 mHz \u81f3 25 MHz<\/li>\n<li><strong>\u9891\u7387\u5206\u8fa8\u7387<\/strong>: 1 \u03bcHz<\/li>\n<li><strong>\u9891\u7387\u8bef\u5dee<\/strong>: &lt;10 pHz + \u65f6\u95f4\u57fa\u51c6\u8bef\u5dee \u00d7 FC<\/li>\n<li><strong>\u6296\u52a8<\/strong>: &lt;50 ps rms<\/li>\n<li><strong>\u7535\u5e73<\/strong>: +5 V CMOS \u903b\u8f91<\/li>\n<\/ul>\n<p><strong>10 MHz \u8f93\u51fa<\/strong><\/p>\n<p>\uff0850 \u03a9 \u8d1f\u8f7d\uff09<\/p>\n<ul>\n<li><strong>\u5e45\u5ea6<\/strong>: 13 dBm<\/li>\n<li><strong>\u5e45\u5ea6\u51c6\u786e\u6027<\/strong>: \u00b11.5 dBm<\/li>\n<li><strong>\u8c10\u6ce2<\/strong>: &lt;-50 dBc<\/li>\n<li><strong>\u6742\u6563<\/strong>: &lt;-90 dBc (100 kHz BW)<\/li>\n<li><strong>\u8f93\u51fa\u8026\u5408<\/strong>: DC, 50 \u03a9 \u00b12 %<\/li>\n<li><strong>\u7528\u6237\u8d1f\u8f7d<\/strong>: 50 \u03a9<\/li>\n<li><strong>\u53cd\u5411\u4fdd\u62a4<\/strong>: \u00b15 VDC<\/li>\n<\/ul>\n<p><strong>\u65f6\u95f4\/\u9891\u7387\u8f93\u5165<\/strong><\/p>\n<ul>\n<li><strong>\u65f6\u95f4\u6807\u8bb0\u5206\u8fa8\u7387<\/strong>: 1 ps<\/li>\n<li><strong>\u65f6\u95f4\u6807\u8bb0\u6296\u52a8 (rms)<\/strong>: &lt;50 ps<\/li>\n<li><strong>\u9891\u7387\u8303\u56f4<\/strong>: 1 \u03bcHz \u81f3 100 MHz\uff08\u8ba1\u6570\u5668\u53ef\u6d4b\u91cf\u9ad8\u8fbe 200 MHz\uff0c\u4f46\u8f93\u5165\u4fe1\u53f7\u88ab\u8870\u51cf\uff09<\/li>\n<li><strong>\u9891\u7387\u5206\u8fa8\u7387<\/strong>: 1 \u03bcHz<\/li>\n<li><strong>\u6d4b\u91cf\u7a33\u5b9a\u6027 (1 \u79d2\u95e8)<\/strong>:\n<ul>\n<li>&lt;5 \u00d7 10^-12\uff08\u540c\u6b65\u4e0e\u5feb\u901f\u5e73\u5747\u542f\u7528\uff09<\/li>\n<li>&lt;5 \u00d7 10^-11\uff08\u5176\u4ed6\u60c5\u51b5\uff09<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>\u8ba1\u7b97\u673a\u63a5\u53e3<\/strong><\/p>\n<ul>\n<li><strong>\u4ee5\u592a\u7f51 (LAN)<\/strong>: 10\/100 Base-T\u3002\u9ed8\u8ba4 TCP\/IP &amp; DHCP<\/li>\n<li><strong>RS-232<\/strong>: 4.8k-115.2k \u6ce2\u7279\u7387\uff0cRTS\/CTS \u6d41<\/li>\n<li><strong>GNSSDO \u5e94\u7528\u7a0b\u5e8f<\/strong>: \u53d1\u9001\u547d\u4ee4\u3001\u67e5\u770b\u4eea\u5668\u72b6\u6001\u3001\u6539\u53d8\u4eea\u5668\u914d\u7f6e\u3002\u652f\u6301 OSX \u548c Windows (.dmg \u548c .exe \u6587\u4ef6)<\/li>\n<\/ul>\n<p><strong>\u4e00\u822c\u4fe1\u606f<\/strong><\/p>\n<ul>\n<li><strong>AC \u7535\u6e90<\/strong>: 90 \u81f3 264 VAC\uff0c47 \u81f3 63 Hz\uff0c\u5e26 PFC\uff0c\u529f\u8017 90 W<\/li>\n<li><strong>EMI \u7b26\u5408\u6027<\/strong>: FCC Part 15\uff08B \u7c7b\uff09\uff0cCISPR-22\uff08B \u7c7b\uff09<\/li>\n<li><strong>\u5c3a\u5bf8<\/strong>: 8.5&#8243; \u00d7 3.5&#8243; \u00d7 13&#8243;\uff08\u5bbd \u00d7 \u9ad8 \u00d7 \u957f\uff09<\/li>\n<li><strong>\u91cd\u91cf<\/strong>: 10 lbs<\/li>\n<li><strong>\u4fdd\u4fee<\/strong>: \u4e00\u5e74\u96f6\u4ef6\u548c\u4eba\u5de5\u4fdd\u4fee\uff0c\u6db5\u76d6\u6750\u6599\u548c\u5de5\u827a\u7f3a\u9677\u3002<\/li>\n<\/ul>\n<\/div>\n<figure id=\"attachment_228\" aria-describedby=\"caption-attachment-228\" style=\"width: 1206px\" class=\"wp-caption alignnone\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-228 size-full\" src=\"https:\/\/www.bihec.com\/think-srs\/wp-content\/uploads\/sites\/1216\/2024\/09\/img_66de6816ab2f5.png\" alt=\"SRS,Stanford Research Systems,\u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf,FS740\" width=\"1206\" height=\"857\" srcset=\"https:\/\/www.bihec.com\/think-srs\/wp-content\/uploads\/sites\/1216\/2024\/09\/img_66de6816ab2f5.png 1206w, https:\/\/www.bihec.com\/think-srs\/wp-content\/uploads\/sites\/1216\/2024\/09\/img_66de6816ab2f5-300x213.png 300w, https:\/\/www.bihec.com\/think-srs\/wp-content\/uploads\/sites\/1216\/2024\/09\/img_66de6816ab2f5-1024x728.png 1024w, https:\/\/www.bihec.com\/think-srs\/wp-content\/uploads\/sites\/1216\/2024\/09\/img_66de6816ab2f5-768x546.png 768w, https:\/\/www.bihec.com\/think-srs\/wp-content\/uploads\/sites\/1216\/2024\/09\/img_66de6816ab2f5-500x355.png 500w, https:\/\/www.bihec.com\/think-srs\/wp-content\/uploads\/sites\/1216\/2024\/09\/img_66de6816ab2f5-800x568.png 800w\" sizes=\"(max-width: 1206px) 100vw, 1206px\" \/><figcaption id=\"caption-attachment-228\" class=\"wp-caption-text\">SRS,Stanford Research Systems,\u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf,FS740<\/figcaption><\/figure>\n<p><a href=\"https:\/\/www.bihec.com\/think-srs\/FS740\/\">https:\/\/www.bihec.com\/think-srs\/FS740\/<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<br><div class=\"tagcloud\"><a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/fs740\/\" class=\"tag-cloud-link tag-link-0 tag-link-position-1\" style=\"font-size: 8pt;\" aria-label=\"FS740 (3\u4e2a\u9879\u76ee)\">FS740<\/a>\n<a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/srs\/\" class=\"tag-cloud-link tag-link-1 tag-link-position-2\" style=\"font-size: 22pt;\" aria-label=\"SRS (105\u4e2a\u9879\u76ee)\">SRS<\/a>\n<a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/stanford-research-systems\/\" class=\"tag-cloud-link tag-link-2 tag-link-position-3\" style=\"font-size: 22pt;\" aria-label=\"Stanford Research Systems (105\u4e2a\u9879\u76ee)\">Stanford Research Systems<\/a>\n<a href=\"https:\/\/www.bihec.com\/think-srs\/tag\/%e6%97%b6%e9%97%b4%e4%b8%8e%e9%a2%91%e7%8e%87%e7%b3%bb%e7%bb%9f\/\" class=\"tag-cloud-link tag-link-3 tag-link-position-4\" style=\"font-size: 8pt;\" aria-label=\"\u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf (3\u4e2a\u9879\u76ee)\">\u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>SRS,Stanford Research Systems,\u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf,FS740 FS740 GPS 10 MHz \u9891\u7387\u53c2\u8003 \u6982\u8ff0 FS740 GPS \u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e00 <\/p>\n","protected":false},"author":27,"featured_media":228,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[]},"categories":[77],"tags":[83,4,5,82],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SRS,Stanford Research Systems,\u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf,FS740<\/title>\n<meta name=\"description\" content=\"FS740 GPS \u65f6\u95f4\u4e0e\u9891\u7387\u7cfb\u7edf\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5177\u6709\u957f\u671f\u7a33\u5b9a\u6027\u7684 10 MHz \u9891\u7387\u53c2\u8003\uff0c\u5176\u7a33\u5b9a\u6027\u4f18\u4e8e 1 \u00d7 10^-13\u3002\u5185\u7f6e\u63a5\u6536\u5668\u53ef\u4ee5\u8ddf\u8e2a\u56db\u5927 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