{"id":4924,"date":"2018-02-08T13:38:15","date_gmt":"2018-02-08T13:38:15","guid":{"rendered":"https:\/\/www.use-snip.com\/kb\/?post_type=ht_kb&p=4924"},"modified":"2020-12-23T19:30:05","modified_gmt":"2020-12-23T19:30:05","slug":"pfat-add-settings-and-uses","status":"publish","type":"ht_kb","link":"https:\/\/www.use-snip.com\/kb\/knowledge-base\/pfat-add-settings-and-uses\/","title":{"rendered":"PFAT: Add Settings and Uses"},"content":{"rendered":"

The the P.F.A.T.™<\/strong> control system provides several innovative ways to control the messages present in every data stream.\u00a0 The PFAT features<\/a> are available in the Pro<\/strong><\/em><\/span>, Basic<\/strong><\/em><\/span>, editions of SNIP<\/strong><\/span>.\u00a0 Lite<\/strong><\/em> <\/span>copies of SNIP<\/strong> <\/span>share the same code base, but many of these innovative features are disabled in the freely available Lite<\/strong> <\/em><\/span>edition.<\/p>\n

Using the PFAT Add<\/strong> Dialog Control<\/h3>\n

\"\"<\/p>\n

The PFAT<\/strong> Add<\/em> control is used to add<\/strong> the selected RTCM3 message types<\/a> found in any Base Station data stream to the current stream.\u00a0 The add action combines all the messages present in both streams (post any filtering that may be active)\u00a0 to form a composite.\u00a0 Various logic rules in SNIP<\/strong><\/span> check for, and warn on, creating conflicting content.\u00a0 The result is then forwarded on to any NTRIP Clients<\/a> or to other users in SNIP<\/strong><\/span> (such as a PUSH_Out<\/a> stream).\u00a0 All the messages are still parsed and may be used in various navigation<\/a> and monitoring services.\u00a0 Whenever PFAT<\/strong> Add<\/em> is active, the right-click menu<\/a> for the stream shows a check mark. Selecting the menu item displays the Add<\/em> dialog box. The message stream must be Parsed<\/a> in order to Filter the messages.<\/p>\n

The individual controls of the Add<\/em> dialog is described in further detail here (link to be provided at release).\u00a0 The basic user interaction is to select one or more data streams from other streams present on the machine to which is then added to the subject stream.\u00a0 Multiple data streams can be added when required.\u00a0 Like all PFAT<\/strong> settings, the values selected are preserved and used each time the stream (or SNIP<\/strong><\/span>) is started.<\/p>\n

Caution<\/strong><\/span>: The PFAT<\/strong> Add<\/em> function is very powerful and it is quite easy to create composite message streams which make no logical sense or which are not internally consistent across all the combined messages.<\/p>\n

The logic in SNIP<\/strong> <\/span>will detect some<\/em> but not all possible conflicts that can result.\u00a0 Among the things that SNIP<\/strong><\/span> will detect are:<\/p>\n