{"id":3605,"date":"2021-04-27T10:02:57","date_gmt":"2021-04-27T02:02:57","guid":{"rendered":"http:\/\/www.comtest.cn\/?post_type=product&#038;p=3605"},"modified":"2021-04-27T10:03:02","modified_gmt":"2021-04-27T02:03:02","slug":"ddf255","status":"publish","type":"product","link":"http:\/\/www.comtest.com.cn\/?product=ddf255","title":{"rendered":"DDF255 \u6570\u5b57\u6d4b\u5411\u673a"},"content":{"rendered":"<div id=\"ti_expandedbox_c_t-10088.4\" class=\"text\">\n<ul class=\"bullet\">\n<li>\u5168\u740324\u4e2a\u76d1\u7ba1\u673a\u6784\u4f7f\u7528\u7684\u4e45\u7ecf\u8003\u9a8c\u7684\u6d4b\u5411\u6cd5<\/li>\n<li>\u9ad8\u7cbe\u5ea6\u6d4b\u5411\u6cd5\uff0c\u6027\u4ef7\u6bd4\u9ad8\uff08\u4e13\u5229\u6cd5\uff09<\/li>\n<li>\u5373\u4f7f\u5728\u56f0\u96be\u7684\u73af\u5883\u4e2d\uff08\u4f8b\u5982\u57ce\u5e02\u5730\u533a\uff0c\u9ad8\u8fbe50\u00a0% \u53cd\u5c04\uff09<\/li>\n<li>\u9891\u7387\u8303\u56f4\u8fbe8.2GHz\u7684\u4fe1\u53f7\u6d4b\u5411<\/li>\n<li>\u901a\u8fc7\u9ad8\u901f\u5168\u666f\u626b\u63cf\u68c0\u6d4b\u672a\u77e5\u9891\u7387\u4e0b\u7684\u6781\u77ed\u53d1\u5c04\uff08\u53ef\u9009\uff09<\/li>\n<li>\u7b26\u5408ITU\u5efa\u8bae\u7684\u6d4b\u91cf\u65b9\u6cd5\uff08\u53ef\u9009\uff09<\/li>\n<li>\u7528\u4e8eI\/Q\u8bb0\u5f55\u548c\u5b9e\u65f6\u56de\u653e\u7684\u5b9e\u65f6\u4e8b\u4ef6\u6355\u83b7\uff08REC\uff09\uff08\u53ef\u9009\uff09<\/li>\n<\/ul>\n<div id=\"ti_expandedbox_c_t-10088.6\" class=\"list single_col\">\n<h3><span class=\"web1_cyan\">\u6269\u5c55\u5e94\u7528\u7a0b\u5e8f<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u5bbd\u5e26\u4fe1\u53f7\u7684\u5feb\u901f\u6d4b\u5411\u4e0e\u9891\u8c31\u76d1\u6d4b\u3001\u5206\u6790\u4e0e\u89e3\u8c03<\/li>\n<li>\u5b9e\u65f6\u5e26\u5bbd\u5185\u7684\u5e76\u884c\u76d1\u6d4b\u4e0e\u89e3\u8c03<\/li>\n<li>\u8fdb\u884c\u9ad8\u8fbe20 MHz\u5e26\u5bbd\u7684\u65f6\u57df\u5206\u6790R&amp;S<sup>\u00ae<\/sup>DDF255-ZS\u96f6SPAN\u9009\u9879<\/li>\n<\/ul>\n<h3><span class=\"web1_cyan\">\u7b26\u5408\u56fd\u9645\u7535\u8054\u5efa\u8bae\u7684\u6709\u6548\u6d4b\u91cf<\/span><\/h3>\n<div class=\"indent\">\n<ul>\n<li>R&amp;S\u516c\u53f8<sup>\u00ae<\/sup>DDF255\u7b26\u5408ITU\u5173\u4e8e\u76d1\u6d4b\u6d4b\u5411\u4eea\u548c\u63a5\u6536\u673a\u7684\u6240\u6709\u5efa\u8bae\u3002<\/li>\n<li>AM\u3001FM\u548cPM\u8c03\u5236\u4fe1\u53f7\u7684\u4fe1\u53f7\u53c2\u6570\u6d4b\u91cf\u9009\u9879\uff08\u5982\u8c03\u5236\u6307\u6570\u3001\u5360\u7528\u5e26\u5bbd\u548c\u76f8\u4f4d\u504f\u5dee\uff09<\/li>\n<li>\u5229\u7528R&amp;S\u5bf9\u6570\u5b57\u8c03\u5236\u4fe1\u53f7\u8fdb\u884c\u79bb\u7ebf\u6d4b\u91cf\u00aeCA100IS\u8f6f\u4ef6\u548c\u5408\u9002\u7684\u9009\u9879\uff08\u7b26\u5408ITU\u5efa\u8baeSM1600\uff09<\/li>\n<\/ul>\n<\/div>\n<div class=\"indent\"><\/div>\n<\/div>\n<h3><span class=\"web1_cyan\">\u5b9e\u65f6\u5e26\u5bbd\u9ad8\u8fbe20\u5146\u8d6b\u7684\u5bbd\u5e26\u6d4b\u5411<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u5b9e\u65f6\u5e26\u5bbd\u5185\u6240\u6709\u53d1\u5c04\u673a\u65b9\u4f4d\u7684\u5e76\u884c\u786e\u5b9a<\/li>\n<\/ul>\n<\/div>\n<h3><span class=\"web1_cyan\">\u9ad8\u6d4b\u5411\u7cbe\u5ea6\uff0c\u5feb\u901f\u53ef\u9760\u7684\u5b9a\u4f4d<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u91c7\u7528\u591a\u5355\u5143\u6d4b\u5411\u5929\u7ebf\uff08VHF\/UHF\/SHF\uff09\u7684\u9ad8\u7cbe\u5ea6\u76f8\u5173\u5e72\u6d89\u4eea\u6d4b\u5411\u65b9\u6cd5<\/li>\n<\/ul>\n<\/div>\n<h3><span class=\"web1_cyan\">\u9ad8\u5206\u8fa8\u7387\u4e2d\u9891\u9891\u8c31<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u6240\u6709\u9891\u8c31\u7ec6\u8282\u5728\u6d4b\u5411\u6a21\u5f0f\u4e0b\u53ef\u89c1<\/li>\n<\/ul>\n<\/div>\n<h3><span class=\"web1_cyan\">\u6d4b\u5411\u9ad8\u8fbe8.2 GHz<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u5feb\u901f\u3001\u6709\u6548\u7684\u5e72\u6270\u68c0\u6d4b<\/li>\n<\/ul>\n<\/div>\n<h3><span class=\"web1_cyan\">\u5f55\u5236\u548c\u91cd\u653e\u9ad8\u8fbe80 MHz\u5bbd\u7684I\/Q\u6570\u636e<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u4e0d\u9519\u8fc7\u4e8b\u4ef6\uff1a\u901a\u8fc7\u7075\u6d3b\u7684\u5b9e\u65f6\u4e8b\u4ef6\u6355\u6349\uff08REC\uff09\u6fc0\u6d3b\u8bb0\u5f55<\/li>\n<li>\u4ece\u5929\u7ebf\u63a5\u6536\u7684\u4fe1\u53f7\uff1a\u56de\u653eI\/Q\u6570\u636e\u65f6\uff0c\u6240\u6709\u63a5\u6536\u5668\u529f\u80fd\u90fd\u53ef\u7528<\/li>\n<li>\u8be6\u7ec6\u663e\u793a\uff1a\u65f6\u95f4\u5206\u8fa8\u7387\u63d0\u9ad8\u7684I\/Q\u6570\u636e\u56de\u653e<\/li>\n<li>\u5b9e\u65f6\u56de\u653e\uff1a\u5728\u63a5\u6536\u5668\u4e2d\u5b9e\u65f6\u56de\u653e\u8bb0\u5f55\u7684\u6570\u636e<\/li>\n<\/ul>\n<\/div>\n<h3><span class=\"web1_cyan\">\u5e26GNSS\u4f4d\u7f6e\u7684\u5730\u56fe\u663e\u793a<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u5f53\u524d\u6d4b\u5411\u4eea\u4f4d\u7f6e\u5730\u56fe\u663e\u793a<\/li>\n<li>\u53ef\u9009\u62e9\u663e\u793a\u76f8\u5bf9\u4e8e\u4f4d\u7f6e\u7684\u8bb0\u5f55\u7ed3\u679c\uff08\u4f8b\u5982\u5149\u8c31\uff09<\/li>\n<li>\u57fa\u4e8eOpenStreetMap\uff08OSM\uff09\u7684\u5730\u56fe\u6750\u8d28<\/li>\n<li>\u7528\u4e8e\u524d\u9762\u677f\u64cd\u4f5c\u7684\u63a5\u6536\u5668\u6216\u5916\u90e8R&amp;S<sup>\u00ae<\/sup>DDF255\u56fe\u5f62\u7528\u6237\u754c\u9762\u8f6f\u4ef6<\/li>\n<\/ul>\n<\/div>\n<h3><span class=\"web1_cyan\">\u786c\u4ef6\u52a0\u901f\u591a\u901a\u9053\u4fe1\u53f7\u5904\u7406<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u7f51\u7edc\u5316\u7cfb\u7edf\u4e2d\u591a\u901a\u9053\u4fe1\u53f7\u7684\u68c0\u6d4b\u4e0e\u5206\u6790<\/li>\n<li>\u591a\u901a\u9053\u5e76\u884c\u591a\u901a\u9053\u8f93\u51fa<\/li>\n<li>\u4eceR&amp;S<sup>\u00ae<\/sup>DDF255\u5b9e\u65f6\u5e26\u5bbd\u4e2d\u63d0\u53d6\u591a\u901a\u9053\u6570\u5b57\u4e0b\u53d8\u9891\uff08DDC\uff09\u4fe1\u53f7\uff0c\u4f7f\u7528R&amp;S<sup>\u00ae<\/sup>DDF255-DDCE\u548cR&amp;S<sup>\u00ae<\/sup>CA120FFP<\/li>\n<li>\u7528R&amp;S<sup>\u00ae<\/sup>DDF255-HRP\u548cR&amp;S<sup>\u00ae<\/sup>CA120DSC\u5b9e\u73b0\u56fa\u5b9a\u9891\u7387\u548c\u7a81\u53d1\u4fe1\u53f7\u7684\u81ea\u52a8\u68c0\u6d4b<\/li>\n<li>\u9891\u7387\u6377\u53d8\u77ed\u65f6\u4fe1\u53f7\u7684R&amp;S<sup>\u00ae<\/sup>DDF255-ST\u81ea\u52a8\u68c0\u6d4b<\/li>\n<\/ul>\n<\/div>\n<h3><span class=\"web1_cyan\">TDOA\u53ef\u7528\uff0c\u4f7f\u7528\u9ad8\u7cbe\u5ea6\u65f6\u95f4\u6233\u548cGNSS\u9891\u7387\u548c\u65f6\u95f4\u540c\u6b65<\/span><\/h3>\n<div class=\"indent\">\n<ul class=\"bullet\">\n<li>\u5229\u7528R&amp;S<sup>\u00ae<\/sup>DDF255IGT2\u5185\u90e8GNSS\u6a21\u5757\u5b9e\u73b0\u63a5\u6536\u673a\u9891\u7387\u548c\u65f6\u95f4\u7684\u540c\u6b65<\/li>\n<li>TDOA\u7cfb\u7edf\u4e2dI\/Q\u57fa\u5e26\u6570\u636e\u6d41\u4e2d\u7684\u9ad8\u7cbe\u5ea6\u65f6\u95f4\u6233<\/li>\n<\/ul>\n<h2>\u7b80\u8981\u89c4\u683c<\/h2>\n<div id=\"ti_expandedbox_c_t-10088.8\" class=\"tbl col3\">\n<table cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<td colspan=\"3\">\u9891\u7387\u8303\u56f4\uff0c\u63a5\u6536\u673a\u6a21\u5f0f<\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><\/td>\n<td>base unit<\/td>\n<td>20\u00a0MHz to 3.6\u00a0GHz<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>with R&amp;S<sup>\u00ae<\/sup>DDF255-SHF option<\/td>\n<td>20\u00a0MHz to 26.5\u00a0GHz<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>with R&amp;S<sup>\u00ae<\/sup>DDF255-HF option<\/td>\n<td>8\u00a0kHz to 3.6\u00a0GHz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div id=\"ti_expandedbox_c_t-10088.9\" class=\"tbl col3\">\n<table cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<td colspan=\"3\">\u9891\u7387\u8303\u56f4\uff0c\u5b9a\u5411\u6a21\u5f0f<\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><\/td>\n<td>base unit<\/td>\n<td>20\u00a0MHz to 3\u00a0GHz<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>with R&amp;S<sup>\u00ae<\/sup>DDF255-SHF option<\/td>\n<td>20\u00a0MHz to 8.2\u00a0GHz<sup>1)<\/sup><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>with R&amp;S<sup>\u00ae<\/sup>DDF255-HF option<\/td>\n<td>300\u00a0kHz to 3\u00a0GHz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div id=\"ti_expandedbox_c_t-10088.10\" class=\"tbl col3\">\n<table cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<td colspan=\"3\">\u5b9a\u5411\u6a21\u5f0f<\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5b9a\u5411\u6a21\u5f0f<\/td>\n<td>VHF\/UHF\/SHF<\/td>\n<td>correlative interferometer<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>HF<\/td>\n<td>Watson-Watt<\/td>\n<\/tr>\n<tr>\n<td>Instrument DF accuracy<\/td>\n<td><\/td>\n<td>0.5\u00ba RMS<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td>System DF accuracy<sup>2)<\/sup><\/td>\n<td colspan=\"2\">depends on DF antenna (i.e. R&amp;S<sup>\u00ae<\/sup>ADD119, R&amp;S<sup>\u00ae<\/sup>ADD196 and R&amp;S<sup>\u00ae<\/sup>ADD075), in reflection-free environment, with lightning protection, in line with report ITU-R SM.2125 (limited<br \/>\nto one modulation type) and recommendation ITU-R SM.854<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>300 kHz to 30 MHz<\/td>\n<td>\u2264 2\u00b0<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>20 MHz to 80 MHz<\/td>\n<td>typ. 1\u00b0 RMS<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>80 MHz to 1.3 GHz<\/td>\n<td>typ. 0.5\u00b0 RMS<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>1.3 GHz to 8.2 GHz<\/td>\n<td>typ. 1\u00b0 RMS<\/td>\n<\/tr>\n<tr>\n<td>System DF sensitivity<\/td>\n<td colspan=\"2\">depends on DF antenna (i.e. R&amp;S<sup>\u00ae<\/sup>ADD119, R&amp;S<sup>\u00ae<\/sup>ADD196 and R&amp;S<sup>\u00ae<\/sup>ADD075), for 5\u00ba\u00a0RMS DF fluctuation, 5\u00a0s integration time and 250\u00a0Hz (HF)\/600\u00a0Hz (VHF\/UHF\/SHF) DF bandwidth, in line with report ITU-R SM.2125<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>300 kHz to 80 MHz<\/td>\n<td>typ. 14 \u03bcV\/m to 4 \u03bcV\/m<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>80 MHz to 1.3 GHz<\/td>\n<td>typ. 1 \u03bcV\/m<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>1.3 GHz to 6 GHz<\/td>\n<td>typ. 2 \u03bcV\/m<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>6 GHz to 8.2 GHz<\/td>\n<td>typ. 3 \u03bcV\/m to 14 \u03bcV\/m<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td>Realtime bandwidth for wideband direction finding<\/td>\n<td><\/td>\n<td>up to 20\u00a0MHz<\/td>\n<\/tr>\n<tr>\n<td>Minimum signal duration<\/td>\n<td colspan=\"2\">for a single burst signal, in line with report ITU-R SM.2125<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>VHF\/UHF\/SHF<\/td>\n<td>1 ms<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>HF<\/td>\n<td>2 ms<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div id=\"ti_expandedbox_c_t-10088.11\" class=\"tbl col3\">\n<table cellspacing=\"0\" cellpadding=\"0\">\n<thead>\n<tr>\n<td colspan=\"3\">\u63a5\u6536\u673a\u6a21\u5f0f<\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Realtime bandwidth for analysis\/demodulatio<\/td>\n<td>base unit<\/td>\n<td>\u00a0up to 20\u00a0MHz<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>with R&amp;S<sup>\u00ae<\/sup>DDF255-ADC2 and R&amp;S<sup>\u00ae<\/sup>DDF255-WB<br \/>\noptions<\/td>\n<td>additionally 40 MHz and 80 MHz<\/td>\n<\/tr>\n<tr>\n<td>Scan speed<\/td>\n<td>with R&amp;S<sup>\u00ae<\/sup>DDF255-PS option<\/td>\n<td>up to 270\u00a0GHz\/s<br \/>\n(in-band)<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>with R&amp;S<sup>\u00ae<\/sup>DDF255-ADC2, R&amp;S<sup>\u00ae<\/sup>DDF255-WB and<br \/>\nR&amp;S<sup>\u00ae<\/sup>DDF255-PS options<\/td>\n<td>up to 850\u00a0GHz\/s<br \/>\n(in-band)<\/td>\n<\/tr>\n<tr>\n<td>Minimum signal duration<\/td>\n<td>VHF\/UHF\/SHF<\/td>\n<td>1\u00a0ms<\/td>\n<\/tr>\n<tr class=\"bkgr\">\n<td><\/td>\n<td>HF<\/td>\n<td>2\u00a0ms<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div id=\"ti_expandedbox_c_t-10088.12\" class=\"tbl col3\">\n<p><sup>1)<\/sup> Depends on DF antenna.<br \/>\n<sup>2)<\/sup> Measurement in reflection-free environment. The RMS error is calculated from the bearings of evenly distributed samples versus azimuth and frequency.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<div id=\"ti_expandedbox_c_t-10088.5\" class=\"text\">\n<p>R&amp;S<sup>\u00ae<\/sup>DDF255\u7ed3\u5408\u4e86\u91c7\u7528\u7cbe\u5bc6\u76f8\u5173\u5e72\u6d89\u4eea\u6d4b\u5411\u6cd5\u7684ESMD\u5bbd\u5e26\u76d1\u6d4b\u63a5\u6536\u673a\u3002\u8fd9\u79cd\u7ec4\u5408\u4ea7\u751f\u4e86\u4e00\u4e2a\u9ad8\u7cbe\u5ea6\u7684\u5bbd\u5e26\u6d4b\u5411\u5668\uff0c\u5177\u6709\u5e7f\u6cdb\u7684\u6d4b\u91cf\u548c\u5206\u6790\u529f\u80fd\u3002\u51ed\u501f\u5176\u9ad8\u96c6\u6210\u5bc6\u5ea6\u548c\u53ef\u9009\u7684\u76f4\u6d41\u7535\u6e90\uff0cR&amp;S<sup>\u00ae<\/sup>DDF255\u4e5f\u662f\u79fb\u52a8\u5e94\u7528\u7684\u7406\u60f3\u9009\u62e9\u3002<\/p>\n<\/div>\n","protected":false},"featured_media":3606,"template":"","meta":[],"product_brand":[],"product_cat":[128,84],"product_tag":[],"class_list":{"0":"post-3605","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-rs","7":"product_cat-rf_df","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - 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