Notes for MSM4 vs. MSM7 in the RTCM Configuration of the EX-1

162 Posts

#1 · August 30, 2024, 3:17 pm

By default, the EX-1 “Base” mode has MSM4 enabled and MSM7 disabled. This is because MSM4 has a smaller data size compared to MSM7 and offers better compatibility. In practical testing, the difference between the two is minimal, but MSM4’s smaller size makes it more suitable for over-the-air transmission.

u-blox also recommends using MSM4 by default. However, if needed, users can manually enable the full set of MSM7 messages, which can also be recorded on the storage card.

Please note that u-blox does not recommend enabling both MSM4 and MSM7 simultaneously, as this could cause conflicts and prevent the Rover from properly recognizing the data. Please refer to the screenshot from the u-blox document below.

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[post_name] => how-to-setup-an-rtk-base-station-using-a-rtk-gnss-receiver [name] => RTK Fix Base Station [object_id] => 369 [term_id] => 9 ) [37] => stdClass Object ( [ID] => 438 [slug] => rtk-gnss-receiver [date] => 2021-10-18 [post_status] => publish [post_type] => post [post_date] => 2021-10-18 10:28:00 [post_author] => 2 [post_title] => How to use a RTK GNSS Receiver for Android: A Step-by-Step Guide [post_name] => how-to-use-a-rtk-gnss-receiver-for-android-a-step-by-step-guide [name] => RTK GNSS Receiver [object_id] => 438 [term_id] => 14 ) [38] => stdClass Object ( [ID] => 438 [slug] => gps-gnss-by-android [date] => 2021-10-18 [post_status] => publish [post_type] => post [post_date] => 2021-10-18 10:28:00 [post_author] => 2 [post_title] => How to use a RTK GNSS Receiver for Android: A Step-by-Step Guide [post_name] => how-to-use-a-rtk-gnss-receiver-for-android-a-step-by-step-guide [name] => GPS / GNSS by Android [object_id] => 438 [term_id] => 35 ) [39] => stdClass Object ( [ID] => 1581 [slug] => rtk-base-station [date] => 2024-02-24 [post_status] => publish [post_type] => post [post_date] => 2024-02-24 23:23:52 [post_author] => 2 [post_title] => Navisys GR-903, GR-9028, and GR-9029 side-by-side comparison table [post_name] => navisys-gr-903-gr-9028-and-gr-9029-side-by-side-comparison-table [name] => RTK Base Station [object_id] => 1581 [term_id] => 8 ) [40] => stdClass Object ( [ID] => 1581 [slug] => rtk-gnss-logger [date] => 2024-02-24 [post_status] => publish [post_type] => post [post_date] => 2024-02-24 23:23:52 [post_author] => 2 [post_title] => Navisys GR-903, GR-9028, and GR-9029 side-by-side comparison table [post_name] => navisys-gr-903-gr-9028-and-gr-9029-side-by-side-comparison-table [name] => RTK GNSS logger [object_id] => 1581 [term_id] => 13 ) [41] => stdClass Object ( [ID] => 1581 [slug] => rtk-gnss-receiver [date] => 2024-02-24 [post_status] => publish [post_type] => post [post_date] => 2024-02-24 23:23:52 [post_author] => 2 [post_title] => Navisys GR-903, GR-9028, and GR-9029 side-by-side comparison table [post_name] => navisys-gr-903-gr-9028-and-gr-9029-side-by-side-comparison-table [name] => RTK GNSS Receiver [object_id] => 1581 [term_id] => 14 ) [42] => stdClass Object ( [ID] => 901 [slug] => rtk-ntrip [date] => 2023-11-10 [post_status] => publish [post_type] => post [post_date] => 2023-11-10 09:30:40 [post_author] => 2 [post_title] => NTRIP Casters in the Real World [post_name] => ntrip-casters-in-the-current-real-world [name] => RTK NTRIP [object_id] => 901 [term_id] => 11 ) [43] => stdClass Object ( [ID] => 886 [slug] => rtk-technology [date] => 2023-11-25 [post_status] => publish [post_type] => post [post_date] => 2023-11-25 11:00:31 [post_author] => 2 [post_title] => NTRIP RTK products buyers' guide [post_name] => ntrip-rtk-products-buyers-guide [name] => RTK GNSS [object_id] => 886 [term_id] => 32 ) [44] => stdClass Object ( [ID] => 1855 [slug] => ppk-technology [date] => 2024-08-27 [post_status] => publish [post_type] => post [post_date] => 2024-08-27 22:04:50 [post_author] => 2 [post_title] => PPK (Post-Processed Kinematic) by using the Columbus EX-1 GNSS Data Logger [post_name] => ppk-post-processed-kinematic-by-using-the-columbus-ex-1-gnss-data-logger [name] => PPK [object_id] => 1855 [term_id] => 48 ) [45] => stdClass Object ( [ID] => 2007 [slug] => rtk-fix-base-station [date] => 2024-02-25 [post_status] => publish [post_type] => post [post_date] => 2024-02-25 13:07:49 [post_author] => 2 [post_title] => RTK / PPK Base Station Accuracy: Long-Duration Survey-In vs. PPP (Precise Point Positioning) [post_name] => rtk-ppk-base-station-accuracy-long-duration-survey-in-vs-ppp-precise-point-positioning [name] => RTK Fix Base Station [object_id] => 2007 [term_id] => 9 ) [46] => stdClass Object ( [ID] => 2007 [slug] => ppk-technology [date] => 2024-02-25 [post_status] => publish [post_type] => post [post_date] => 2024-02-25 13:07:49 [post_author] => 2 [post_title] => RTK / PPK Base Station Accuracy: Long-Duration Survey-In vs. PPP (Precise Point Positioning) [post_name] => rtk-ppk-base-station-accuracy-long-duration-survey-in-vs-ppp-precise-point-positioning [name] => PPK [object_id] => 2007 [term_id] => 48 ) [47] => stdClass Object ( [ID] => 1117 [slug] => rtk-ntrip [date] => 2023-08-26 [post_status] => publish [post_type] => post [post_date] => 2023-08-26 16:31:45 [post_author] => 2 [post_title] => Setting Up a Free NTRIP client with RTKLib’s STRSVR [post_name] => setting-up-a-free-ntrip-client-with-rtklibs-strsvr [name] => RTK NTRIP [object_id] => 1117 [term_id] => 11 ) [48] => stdClass Object ( [ID] => 1117 [slug] => rtk-gnss-receiver [date] => 2023-08-26 [post_status] => publish [post_type] => post [post_date] => 2023-08-26 16:31:45 [post_author] => 2 [post_title] => Setting Up a Free NTRIP client with RTKLib’s STRSVR [post_name] => setting-up-a-free-ntrip-client-with-rtklibs-strsvr [name] => RTK GNSS Receiver [object_id] => 1117 [term_id] => 14 ) [49] => stdClass Object ( [ID] => 1117 [slug] => rtk-software [date] => 2023-08-26 [post_status] => publish [post_type] => post [post_date] => 2023-08-26 16:31:45 [post_author] => 2 [post_title] => Setting Up a Free NTRIP client with RTKLib’s STRSVR [post_name] => setting-up-a-free-ntrip-client-with-rtklibs-strsvr [name] => RTK Software [object_id] => 1117 [term_id] => 46 ) [50] => stdClass Object ( [ID] => 1075 [slug] => rtk-fix-base-station [date] => 2023-11-26 [post_status] => publish [post_type] => post [post_date] => 2023-11-26 14:54:02 [post_author] => 2 [post_title] => Setting Up a Free NTRIP Server with RTKLib's STRSVR [post_name] => setting-up-a-free-ntrip-server-with-rtklibs-strsvr [name] => RTK Fix Base Station [object_id] => 1075 [term_id] => 9 ) [51] => stdClass Object ( [ID] => 1075 [slug] => rtk-ntrip [date] => 2023-11-26 [post_status] => publish [post_type] => post [post_date] => 2023-11-26 14:54:02 [post_author] => 2 [post_title] => Setting Up a Free NTRIP Server with RTKLib's STRSVR [post_name] => setting-up-a-free-ntrip-server-with-rtklibs-strsvr [name] => RTK NTRIP [object_id] => 1075 [term_id] => 11 ) [52] => stdClass Object ( [ID] => 1075 [slug] => rtk-software [date] => 2023-11-26 [post_status] => publish [post_type] => post [post_date] => 2023-11-26 14:54:02 [post_author] => 2 [post_title] => Setting Up a Free NTRIP Server with RTKLib's STRSVR [post_name] => setting-up-a-free-ntrip-server-with-rtklibs-strsvr [name] => RTK Software [object_id] => 1075 [term_id] => 46 ) [53] => stdClass Object ( [ID] => 1220 [slug] => rtk-base-station [date] => 2023-11-09 [post_status] => publish [post_type] => post [post_date] => 2023-11-09 23:58:46 [post_author] => 2 [post_title] => Setting Up the ByNav C2-M2X RTK GNSS Module as Either an RTK Base or Rover [post_name] => setting-up-the-bynav-c2-m2x-rtk-gnss-module-as-either-an-rtk-base-or-rover [name] => RTK Base Station [object_id] => 1220 [term_id] => 8 ) [54] => stdClass Object ( [ID] => 1220 [slug] => rtk-fix-base-station [date] => 2023-11-09 [post_status] => publish [post_type] => post [post_date] => 2023-11-09 23:58:46 [post_author] => 2 [post_title] => Setting Up the ByNav C2-M2X RTK GNSS Module as Either an RTK Base or Rover [post_name] => setting-up-the-bynav-c2-m2x-rtk-gnss-module-as-either-an-rtk-base-or-rover [name] => RTK Fix Base Station [object_id] => 1220 [term_id] => 9 ) [55] => stdClass Object ( [ID] => 1220 [slug] => rtk-rover [date] => 2023-11-09 [post_status] => publish [post_type] => post [post_date] => 2023-11-09 23:58:46 [post_author] => 2 [post_title] => Setting Up the ByNav C2-M2X RTK GNSS Module as Either an RTK Base or Rover [post_name] => setting-up-the-bynav-c2-m2x-rtk-gnss-module-as-either-an-rtk-base-or-rover [name] => RTK Rover [object_id] => 1220 [term_id] => 12 ) [56] => stdClass Object ( [ID] => 1220 [slug] => rtk-gnss-receiver [date] => 2023-11-09 [post_status] => publish [post_type] => post [post_date] => 2023-11-09 23:58:46 [post_author] => 2 [post_title] => Setting Up the ByNav C2-M2X RTK GNSS Module as Either an RTK Base or Rover [post_name] => setting-up-the-bynav-c2-m2x-rtk-gnss-module-as-either-an-rtk-base-or-rover [name] => RTK GNSS Receiver [object_id] => 1220 [term_id] => 14 ) [57] => stdClass Object ( [ID] => 1361 [slug] => rtk-gnss-logger [date] => 2023-12-15 [post_status] => publish [post_type] => post [post_date] => 2023-12-15 11:43:42 [post_author] => 2 [post_title] => Stakeouts with Navisys GR-9029 RTK GNSS [post_name] => stakeouts-with-the-navisys-gr-9029-rtk-gnss [name] => RTK GNSS logger [object_id] => 1361 [term_id] => 13 ) [58] => stdClass Object ( [ID] => 1134 [slug] => rtk-ntrip [date] => 2023-11-27 [post_status] => publish [post_type] => post [post_date] => 2023-11-27 17:35:51 [post_author] => 2 [post_title] => The Free NTRIP Caster from GPSWebShop / CanadaGPS [post_name] => the-free-ntrip-caster-from-gpswebshop [name] => RTK NTRIP [object_id] => 1134 [term_id] => 11 ) [59] => stdClass Object ( [ID] => 687 [slug] => sub-meter-gps-gnss [date] => 2019-06-24 [post_status] => publish [post_type] => post [post_date] => 2019-06-24 15:10:00 [post_author] => 2 [post_title] => The most detailed explanation of P-10 Pro accuracy. [post_name] => the-most-detailed-explanation-of-p-10-pro-accuracy [name] => Sub-Meter GPS / GNSS [object_id] => 687 [term_id] => 6 ) [60] => stdClass Object ( [ID] => 700 [slug] => sub-meter-gps-gnss [date] => 2022-08-24 [post_status] => publish [post_type] => post [post_date] => 2022-08-24 15:59:00 [post_author] => 2 [post_title] => The static drift filter of Columbus P-7 Pro. [post_name] => the-static-drift-filter-of-columbus-p-7-pro [name] => Sub-Meter GPS / GNSS [object_id] => 700 [term_id] => 6 ) [61] => stdClass Object ( [ID] => 555 [slug] => gps-gnss-by-windows [date] => 2021-10-18 [post_status] => publish [post_type] => post [post_date] => 2021-10-18 14:32:00 [post_author] => 2 [post_title] => Uninstall "Windows Location Sensor": A Step-by-Step Guide [post_name] => uninstall-windows-location-sensor-a-step-by-step-guide [name] => GPS / GNSS by Windows [object_id] => 555 [term_id] => 33 ) [62] => stdClass Object ( [ID] => 854 [slug] => rtk-ntrip [date] => 2023-08-09 [post_status] => publish [post_type] => post [post_date] => 2023-08-09 09:59:29 [post_author] => 2 [post_title] => User Guide - Setting Up GR-9028 Portable RTK Base (with Android phone or tablet) [post_name] => instructions-for-setting-up-gr-9028-portable-rtk-base-with-android-phone-or-tablet [name] => RTK NTRIP [object_id] => 854 [term_id] => 11 ) [63] => stdClass Object ( [ID] => 811 [slug] => rtk-portable-base-station [date] => 2023-08-08 [post_status] => publish [post_type] => post [post_date] => 2023-08-08 13:25:46 [post_author] => 2 [post_title] => User Guide - Setting Up GR-9028 Portable RTK Base (with iPhone/iPad) [post_name] => instructions-for-setting-up-gr-9028-portable-rtk-base-with-iphone-ipad [name] => RTK Portable Base Station [object_id] => 811 [term_id] => 42 ) [64] => stdClass Object ( [ID] => 984 [slug] => rtk-gnss-logger [date] => 2023-08-08 [post_status] => publish [post_type] => post [post_date] => 2023-08-08 19:36:56 [post_author] => 2 [post_title] => User Guide - Setting Up GR-9029 RTK GNSS Data Logger (with Android phone or tablet) [post_name] => user-guide-setting-up-gr-9029-rtk-gnss-data-logger-with-android-phone-or-tablet [name] => RTK GNSS logger [object_id] => 984 [term_id] => 13 ) [65] => stdClass Object ( [ID] => 954 [slug] => rtk-gnss-logger [date] => 2023-08-09 [post_status] => publish [post_type] => post [post_date] => 2023-08-09 16:09:23 [post_author] => 2 [post_title] => User Guide - Setting Up GR-9029 RTK GNSS Data Logger (with iPhone/iPad) [post_name] => user-guide-setting-up-gr-9029-rtk-gnss-data-logger-with-iphone-ipad [name] => RTK GNSS logger [object_id] => 954 [term_id] => 13 ) [66] => stdClass Object ( [ID] => 1508 [slug] => rtk-gnss-logger [date] => 2024-02-25 [post_status] => publish [post_type] => post [post_date] => 2024-02-25 13:02:43 [post_author] => 2 [post_title] => User Guide – How to Set Up GR-903 as a RTK GNSS Data logger Using the "SPPRTK" Android App? [post_name] => user-guide-how-to-set-up-gr-903-as-a-rtk-gnss-data-logger-using-the-spprtk-android-app [name] => RTK GNSS logger [object_id] => 1508 [term_id] => 13 ) [67] => stdClass Object ( [ID] => 1508 [slug] => gps-gnss-by-android [date] => 2024-02-25 [post_status] => publish [post_type] => post [post_date] => 2024-02-25 13:02:43 [post_author] => 2 [post_title] => User Guide – How to Set Up GR-903 as a RTK GNSS Data logger Using the "SPPRTK" Android App? [post_name] => user-guide-how-to-set-up-gr-903-as-a-rtk-gnss-data-logger-using-the-spprtk-android-app [name] => GPS / GNSS by Android [object_id] => 1508 [term_id] => 35 ) [68] => stdClass Object ( [ID] => 1463 [slug] => rtk-fix-base-station [date] => 2024-02-25 [post_status] => publish [post_type] => post [post_date] => 2024-02-25 13:08:19 [post_author] => 2 [post_title] => User Guide – How to Set Up GR-903 as RTK Base Station and NTRIP Server Using the "SPPRTK" Android App? [post_name] => user-guide-how-to-set-up-gr-903-as-rtk-base-station-and-ntrip-server-using-the-spprtk-android-app [name] => RTK Fix Base Station [object_id] => 1463 [term_id] => 9 ) [69] => stdClass Object ( [ID] => 1463 [slug] => gps-gnss-by-android [date] => 2024-02-25 [post_status] => publish [post_type] => post [post_date] => 2024-02-25 13:08:19 [post_author] => 2 [post_title] => User Guide – How to Set Up GR-903 as RTK Base Station and NTRIP Server Using the "SPPRTK" Android App? [post_name] => user-guide-how-to-set-up-gr-903-as-rtk-base-station-and-ntrip-server-using-the-spprtk-android-app [name] => GPS / GNSS by Android [object_id] => 1463 [term_id] => 35 ) [70] => stdClass Object ( [ID] => 1463 [slug] => rtk-portable-base-station [date] => 2024-02-25 [post_status] => publish [post_type] => post [post_date] => 2024-02-25 13:08:19 [post_author] => 2 [post_title] => User Guide – How to Set Up GR-903 as RTK Base Station and NTRIP Server Using the "SPPRTK" Android App? [post_name] => user-guide-how-to-set-up-gr-903-as-rtk-base-station-and-ntrip-server-using-the-spprtk-android-app [name] => RTK Portable Base Station [object_id] => 1463 [term_id] => 42 ) [71] => stdClass Object ( [ID] => 537 [slug] => rtk-gnss-receiver [date] => 2021-10-18 [post_status] => publish [post_type] => post [post_date] => 2021-10-18 13:17:00 [post_author] => 2 [post_title] => Utilizing a RTK GNSS Receiver for Linux: A Step-by-Step Guide [post_name] => utilizing-a-rtk-gnss-receiver-for-linux-a-step-by-step-guide [name] => RTK GNSS Receiver [object_id] => 537 [term_id] => 14 ) [72] => stdClass Object ( [ID] => 550 [slug] => rtk-gnss-logger [date] => 2020-10-18 [post_status] => publish [post_type] => post [post_date] => 2020-10-18 14:00:00 [post_author] => 2 [post_title] => Utilizing a USB/Bluetooth RTK GNSS Receiver for High Accuracy Data Logging: A Step-by-Step Guide [post_name] => utilizing-a-usb-bluetooth-rtk-gnss-receiver-for-high-accuracy-data-logging-a-step-by-step-guide [name] => RTK GNSS logger [object_id] => 550 [term_id] => 13 ) [73] => stdClass Object ( [ID] => 550 [slug] => rtk-gnss-receiver [date] => 2020-10-18 [post_status] => publish [post_type] => post [post_date] => 2020-10-18 14:00:00 [post_author] => 2 [post_title] => Utilizing a USB/Bluetooth RTK GNSS Receiver for High Accuracy Data Logging: A Step-by-Step Guide [post_name] => utilizing-a-usb-bluetooth-rtk-gnss-receiver-for-high-accuracy-data-logging-a-step-by-step-guide [name] => RTK GNSS Receiver [object_id] => 550 [term_id] => 14 ) [74] => stdClass Object ( [ID] => 488 [slug] => rtk-gnss-receiver [date] => 2021-10-20 [post_status] => publish [post_type] => post [post_date] => 2021-10-20 11:38:00 [post_author] => 2 [post_title] => Utilizing a USB/Bluetooth RTK GNSS Receiver with a Windows 10/11 Laptop: A Step-by-Step Guide [post_name] => utilizing-a-usb-bluetooth-rtk-gnss-receiver-with-a-windows-10-11-laptop-a-step-by-step-guide [name] => RTK GNSS Receiver [object_id] => 488 [term_id] => 14 ) [75] => stdClass Object ( [ID] => 488 [slug] => gps-gnss-by-windows [date] => 2021-10-20 [post_status] => publish [post_type] => post [post_date] => 2021-10-20 11:38:00 [post_author] => 2 [post_title] => Utilizing a USB/Bluetooth RTK GNSS Receiver with a Windows 10/11 Laptop: A Step-by-Step Guide [post_name] => utilizing-a-usb-bluetooth-rtk-gnss-receiver-with-a-windows-10-11-laptop-a-step-by-step-guide [name] => GPS / GNSS by Windows [object_id] => 488 [term_id] => 33 ) [76] => stdClass Object ( [ID] => 1710 [slug] => sub-meter-gps-gnss [date] => 2024-08-01 [post_status] => publish [post_type] => post [post_date] => 2024-08-01 11:05:36 [post_author] => 2 [post_title] => Why can’t you rely on some GPS/GNSS apps’ accuracy readings for multi-frequency GNSS Receivers? [post_name] => why-cant-you-rely-on-some-gps-gnss-apps-accuracy-readings-for-multi-frequency-gnss-receivers [name] => Sub-Meter GPS / GNSS [object_id] => 1710 [term_id] => 6 ) )
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