To: | LF Group <[email protected]> |
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Subject: | Re: LF: Transmitting from a NEO-M8N ?? |
From: | Riccardo Zoli <[email protected]> |
Date: | Sat, 28 Jul 2018 23:29:20 +0200 |
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Hi Stefan, Andy, VLF. A year ago, I wrote to LF group some informations about U-center, the management software by Ublox for NEO-x and LEA-x modules: "Use "U-center" (by U-blox - https://www.u-blox.com/en/product/u-center-windows) to pre-configure the module. After connecting it, it's necessary to set the navigation mode and minimum elevation of sats (thanks to Domenico for the advice). Go to... - Menu - View - Configuration view - Select item "NAV5 (Navigation 5)" (left side) - Set Dynamic Model to "Stationary" (right side) - Set Min SV Elevation to 10 degrees - Press Send button - Select item "TP5 (Timepulse 5)" (left side). - Select Frequency and Duty Cycle mode (right side) - Set Duty cycle values (50% normally) - Set QRG values Frequency and Frequency Locked (in Hz) ... - Press Send button ...obviously we need GPS module status ALWAYS in locked mode to obtain a valid coherent signal... - Select item "CFG (Configuration)" (left side) - Select "Save current configuration" (right side) - Select all Devices (in particular I2C-EEPROM) by keeping pressing Shift key - Press Send button Now the module is programmed." Then, close U-center. Now you can send, via serial UBX protocol, specific commands to set your frequency (with 1 Hz step). The complete protocol is explained in this document (have a look at page 133): In particular, have a look also at page 221 (UBX-CFG-TP5 command specifications). So, have fun with Raspberry and your new NEO GPS module. All the best 73 de Riccardo IW4DXW Il Sab 28 Lug 2018, 11:42 Andy Talbot <[email protected]> ha scritto:
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