{"id":5769,"date":"2018-11-02T16:02:59","date_gmt":"2018-11-02T16:02:59","guid":{"rendered":"https:\/\/www.use-snip.com\/kb\/?post_type=ht_kb&#038;p=5769"},"modified":"2020-08-28T14:28:27","modified_gmt":"2020-08-28T14:28:27","slug":"translating-base-station-details","status":"publish","type":"ht_kb","link":"https:\/\/www.use-snip.com\/kb\/knowledge-base\/translating-base-station-details\/","title":{"rendered":"Translating Base Station Details"},"content":{"rendered":"<p>The <strong>Base Station Details<\/strong> dialog is another<a href=\"https:\/\/www.use-snip.com\/kb\/knowledge-base\/pfat-translate-settings-uses\/\"> <strong>PFAT<\/strong> Translate<\/a> function that allows changing various static data fields about the Base Station equipment and configuration.<\/p>\n<p>Most of this information is conveyed to the <a href=\"https:\/\/www.use-snip.com\/kb\/knowledge-base\/question-what-is-an-ntrip-client\/\">NTRIP Clients<\/a> in three \u00a0<a href=\"https:\/\/www.use-snip.com\/kb\/knowledge-base\/rtcm-3-message-list\/\">RTCM3 messages<\/a>. (The Base Station ID value is repeated in every message and is used to detect if the Base Station has changed, as might occur in a NEAR stream environment ). \u00a0\u00a0The key messages are:<\/p>\n<ul>\n<li><strong>MT1007\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong><br \/>\nContaining a string describing the model of GNSS Antenna Used.<br \/>\nThis data is then used to look up phase and physical offsets associated with that antenna.<\/li>\n<li><strong>MT1008\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong><br \/>\nContaining the same string, plus a serial number unique to that antenna unit<\/li>\n<li><strong>MT1033\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong><br \/>\nContaining the above,\u00a0 plus string for the GNSS receiver model number,<br \/>\nits firmware revision, and its serial number.<\/li>\n<\/ul>\n<p>Some integer setup values are also provided in the messages to allow the Rover to detect when a configuration has changed.<\/p>\n<p>These three messages are sent out every 5 to 30 seconds by the Base Station and their contents rarely change.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5771\" src=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample2.png\" alt=\"\" width=\"532\" height=\"500\" srcset=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample2.png 532w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample2-300x282.png 300w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample2-50x47.png 50w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample2-320x301.png 320w\" sizes=\"auto, (max-width: 532px) 100vw, 532px\" \/><\/p>\n<h3><strong>General comments <\/strong><\/h3>\n<p>The purpose of this dialog is to provide a simple way to edit the text from the Base Station messages (replacing the text on the left with what you enter on the right).<\/p>\n<p>The dialog itself follows the same pattern as others found in <span style=\"color: #0000ff;\"><strong>SNIP<\/strong><\/span>.\u00a0 The yellow highlighted areas for each message type provide rich tool-tips with further commentary on the contents and use of the each message type.<\/p>\n<h4>Buttons<\/h4>\n<p>A set of simple <strong>Edit<\/strong> buttons along the left side allows editing a replacement entry for each line.<\/p>\n<p>When editing each field, a small edit dialog is presented as shown below.\u00a0 If possible, any common known values are presented in a drop-down box.\u00a0 A small textual hint as to the expected data is also presented.\u00a0 In general, only ASCII text should be used in these fields. Consult the GNSS maker if in doubt.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5935\" src=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2019\/01\/EditBaseStationDetails.png\" alt=\"\" width=\"406\" height=\"188\" srcset=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2019\/01\/EditBaseStationDetails.png 406w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2019\/01\/EditBaseStationDetails-300x139.png 300w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2019\/01\/EditBaseStationDetails-50x23.png 50w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2019\/01\/EditBaseStationDetails-320x148.png 320w\" sizes=\"auto, (max-width: 406px) 100vw, 406px\" \/><\/p>\n<p>A <strong>Reset<\/strong> button at the bottom removes and resets any prior changes.\u00a0 At the top is a master on\/off button (<strong>Enable Station Translations<\/strong>) to control the entire process when checked (and when the master <strong>PFAT<\/strong> Translate checkbox is checked).<\/p>\n<p>The button <strong>Use Null\u00a0 Ant<\/strong> is used to send the phrase <strong>ADVNULLANTENNA<\/strong> (replacing any content that the base station provided) in the messages.<\/p>\n<p>The button <strong>Remove All<\/strong> is used to filter all three messages from being sent.<\/p>\n<h4>Filter, Send, Translate<\/h4>\n<p>When <strong>Filter<\/strong> is checked, the selected message type is never sent.\u00a0 When <strong>Send<\/strong> is checked, the selected message type is sent (passed on) with no changes. When <strong>Translate<\/strong> is checked, the content in the selected message type is replaced with any content text found in the <em>Replace With<\/em> column of the table.<\/p>\n<p>The three check boxes are exclusive for each message type (only one can be checked at any time).\u00a0 If none are checked, the behavior is to pass the (unchanged) message along when it arrives.<\/p>\n<p><strong><span style=\"color: #008000;\">Note<\/span><\/strong>: In the initial release of this dialog (Nov. 8th 2019, rev 2.06) the general Edit buttons were disabled, only the <strong>Use Null Ant<\/strong> button had fully functionality.\u00a0 This was done to expedite the release of this dialog for users who requested this feature.\u00a0 All edit function are now active as of release<strong> 2.07<\/strong>.<\/p>\n<p>The image above illustrates a Base Station which does not send <em>any<\/em> of these messages, a fairly common practice in smaller networks.\u00a0\u00a0 \u00a0None of the fields shows data, and none of the message types shows a count (which indicates that none of these messages are in fact being sent). \u00a0But it serves \u00a0to show the seven editable data elements that can be changed with this dialog.<\/p>\n<p>By contrast below is a Base Station which provides most of these data elements:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5773\" src=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample1.png\" alt=\"\" width=\"532\" height=\"500\" srcset=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample1.png 532w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample1-300x282.png 300w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample1-50x47.png 50w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample1-320x301.png 320w\" sizes=\"auto, (max-width: 532px) 100vw, 532px\" \/><\/p>\n<p>In the above example we see the use of <strong>GPPNULLANTENNA<\/strong> which is keyword to indicate that no additional phase and offset adjustments are needed from the transmitted ECEF value to the L1 phase center of this antenna.\u00a0 \u00a0The term <strong>ADVNULLANTENNA<\/strong> is also used for this (the two terms are equivalent). \u00a0A common use of\u00a0 this dialog is to ensure that the antenna term is aligned with any ECEF datum offsets which have been made (either within <span style=\"color: #0000ff;\"><strong>SNIP<\/strong><\/span> or elsewhere) to determine the ECEC to be used.<\/p>\n<p>You can read more about this topic and how to set up <span style=\"color: #0000ff;\"><strong>SNIP<\/strong> <\/span>in these two related articles:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.use-snip.com\/kb\/knowledge-base\/what-is-advnullantenna\/\">On ADVNULLANTENNA and its uses<\/a><\/li>\n<li><a href=\"https:\/\/www.use-snip.com\/kb\/knowledge-base\/setting-advnullantenna\/\">On setting ADVNULLANTENNA using the Base Station Details dialog<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><strong>Other Antenna Data<\/strong><\/h3>\n<p>The above two case cases, one of <em>nothing<\/em> and one with an ADVNULLANTENNA entry, cover the majority of deployed systems one will encounter. \u00a0And it is important \u00a0to recall that these messages are simply optional, but are of great value to achieve the highest accuracy.<\/p>\n<p>Many Base Stations do provide model and brand specific antenna configuration details. \u00a0\u00a0Below is an example of this. \u00a0\u00a0In this example network, some of the Rover devices in this network will use the value &#8220;<strong>JAVRINGANT_DM<\/strong>&#8221; to offset the ECEF location being sent in MT1005\/1006 (which in this case has in fact already been translated to compensate for this). \u00a0So by editing the term and sending <strong>ADVNULLANTENNA<\/strong> the Rover device no longer makes this (now unneeded) adjustment.\u00a0 And the resulting positional estimate is correct. \u00a0\u00a0[This network happens to have a mixture of Trimble and Javad Base Station equipment]<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5772\" src=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample3.png\" alt=\"\" width=\"532\" height=\"498\" srcset=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample3.png 532w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample3-300x281.png 300w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample3-50x47.png 50w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/BaseDetailsExample3-320x300.png 320w\" sizes=\"auto, (max-width: 532px) 100vw, 532px\" \/><\/p>\n<p>Failure to align the ECEF value, the Ant Ht value, and the text in the Antenna Description field can lead to Rover errors, mostly observed in the resulting height above the ellipsoid estimate.\u00a0 It is a best practice to crosscheck your settings by occupying a known monument when changing these values.<\/p>\n<p>&nbsp;<\/p>\n<h3>PFAT Colors in the RTCM3 Viewer<\/h3>\n<p>When a PFAT Translation or Filter setting is in effect for a given message type, the highlight color used for that message changes from the default yellow to indicate that the original message contents has been changed in some way before being sent on the subscribed <a href=\"https:\/\/www.use-snip.com\/kb\/knowledge-base\/question-what-is-an-ntrip-client\/\">NTRIP Clients<\/a>.\u00a0\u00a0 The tool-tip details also change, see this article for more information.<\/p>\n<p><a href=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/TranslationColorsInRTCM3iewer.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-5824\" src=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/TranslationColorsInRTCM3iewer.png\" alt=\"\" width=\"400\" height=\"270\" srcset=\"https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/TranslationColorsInRTCM3iewer.png 800w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/TranslationColorsInRTCM3iewer-300x203.png 300w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/TranslationColorsInRTCM3iewer-768x518.png 768w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/TranslationColorsInRTCM3iewer-50x34.png 50w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/TranslationColorsInRTCM3iewer-600x405.png 600w, https:\/\/www.use-snip.com\/kb\/wp-content\/uploads\/2018\/11\/TranslationColorsInRTCM3iewer-320x216.png 320w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>In the nonsensical image above (double click to enlarge) , the green color indicates that the MT1006 and MT1033 have been changed.\u00a0 The orange color indicates that the MT1008 has been filtered (removed) from the data stream.\u00a0 The yellow color (MT1013) is the default.\u00a0 Holding the mouse over the colored area bring up the <span style=\"color: #0000ff;\"><strong>SNIP<\/strong><\/span> summary remarks for this message type.\u00a0 In this example:<\/p>\n<ul>\n<li>MT1006 had a one meter Antenna Height added to the original message.<\/li>\n<li>MT1008 was removed, although sending this message with ADVNULLANTENNA would be more typical, as some older GNSS devices require this message because they cannot process the MT1033 information.<\/li>\n<li>MT1033 has has the term ADVNULLANTENNA added to it.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #008000;\"><strong>Note<\/strong><\/span>:\u00a0 The serial numbers and some of the data used here have been obscured to ensure the privacy of the Base Stations owners and the <span style=\"color: #0000ff;\"><strong>SNIP<\/strong><\/span> operators.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Base Station Details dialog is another PFAT Translate function that allows changing various static data fields about the Base Station equipment and configuration. Most of this information is conveyed to the NTRIP Clients in three \u00a0RTCM3 messages. (The Base Station ID value is repeated in every message and is [&hellip;]<\/p>\n","protected":false},"author":13,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"ht-kb-category":[334],"ht-kb-tag":[377,381,402],"class_list":["post-5769","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-advanced-topics","ht_kb_tag-base-stations","ht_kb_tag-pfat","ht_kb_tag-translation"],"_links":{"self":[{"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/ht-kb\/5769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/comments?post=5769"}],"version-history":[{"count":22,"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/ht-kb\/5769\/revisions"}],"predecessor-version":[{"id":6756,"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/ht-kb\/5769\/revisions\/6756"}],"wp:attachment":[{"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/media?parent=5769"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/ht-kb-category?post=5769"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/www.use-snip.com\/kb\/wp-json\/wp\/v2\/ht-kb-tag?post=5769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}