# GPS/GNSS **URL:** https://community.sparkfun.com/c/global-positioning-system-gps/96.md?page=3 [Latest](https://community.sparkfun.com/latest.md) · [Categories](https://community.sparkfun.com/categories.md) · [Tags](https://community.sparkfun.com/tags.md) **Page:** 4 --- ## [Sparkfun Facet - not charging possibly due to loose USB-C](https://community.sparkfun.com/t/sparkfun-facet-not-charging-possibly-due-to-loose-usb-c/68162)
**Author:** [@Chia\_Chang](https://community.sparkfun.com/u/Chia_Chang)\ **Replies:** 11\ **Last updated:** [May 26, 2026, 7:04pm UTC](https://community.sparkfun.com/t/sparkfun-facet-not-charging-possibly-due-to-loose-usb-c/68162 "2026-05-26T19:04:40Z")
I purchased the Sparkfun Facet recently (1month ago) and I’m experiencing charging issues. The USB-C feels loose and will only charge after multiple attempts on inserting the USB-C. Sometimes, charging LED does turn on… --- ## [Which LoRa radio with SparkPNT FPL?](https://community.sparkfun.com/t/which-lora-radio-with-sparkpnt-fpl/68475)
**Author:** [@Samufun](https://community.sparkfun.com/u/Samufun)\ **Replies:** 6\ **Last updated:** [May 26, 2026, 3:50pm UTC](https://community.sparkfun.com/t/which-lora-radio-with-sparkpnt-fpl/68475 "2026-05-26T15:50:11Z")
I just ordered SparkPNT FPL. I’m not sure which kind of LoRa radio do I need for setting up RTCM between my RTK base station and the FPL. The base station is Raspberry Pi 5 with Flex pHAT. Could I use SparkFun Pro RF wi… --- ## [SWmaps: Local Coordinate System with Transverse Mercator Projection](https://community.sparkfun.com/t/swmaps-local-coordinate-system-with-transverse-mercator-projection/68836)
**Author:** [@amlago](https://community.sparkfun.com/u/amlago)\ **Replies:** 3\ **Last updated:** [May 26, 2026, 12:01pm UTC](https://community.sparkfun.com/t/swmaps-local-coordinate-system-with-transverse-mercator-projection/68836 "2026-05-26T12:01:47Z")
SWmaps: Local Coordinate System with Transverse Mercator Projection Hi everyone: This cold Sunday forced me to investigate SWmaps details. I wanted to generate a local reference system with a transverse Mercator projec… --- ## [GNSS Receiver for sub cm accuracy in dirt moving equipment](https://community.sparkfun.com/t/gnss-receiver-for-sub-cm-accuracy-in-dirt-moving-equipment/68807)
**Author:** [@Anthony\_Carson](https://community.sparkfun.com/u/Anthony_Carson)\ **Replies:** 7\ **Last updated:** [May 24, 2026, 3:20pm UTC](https://community.sparkfun.com/t/gnss-receiver-for-sub-cm-accuracy-in-dirt-moving-equipment/68807 "2026-05-24T15:20:55Z")
I’m new Sparkfun, but loving the possibilities. I handle the IT/Technology for an extremely small dirt work company (15 employees), so I’m a tech-savvy bulldozer operator. Most of the Big GNSS companies in our industry… --- ## [Connecting Facet and Postcard via ESP-NOW?](https://community.sparkfun.com/t/connecting-facet-and-postcard-via-esp-now/68830)
**Author:** [@amlago](https://community.sparkfun.com/u/amlago)\ **Replies:** 3\ **Last updated:** [May 24, 2026, 2:30pm UTC](https://community.sparkfun.com/t/connecting-facet-and-postcard-via-esp-now/68830 "2026-05-24T14:30:45Z")
Connecting Facet and Postcard via ESP-NOW? Hi everyone. Although I’ve been working with Facet for years and now with Postcard, I’ve never used the ESP-NOW connection. Now I’m trying to pair Facet with Postcard and hav… --- ## [Metta Go: Another App for Point Surveying](https://community.sparkfun.com/t/metta-go-another-app-for-point-surveying/68834)
**Author:** [@amlago](https://community.sparkfun.com/u/amlago)\ **Replies:** 0\ **Last updated:** [May 24, 2026, 2:27pm UTC](https://community.sparkfun.com/t/metta-go-another-app-for-point-surveying/68834 "2026-05-24T14:27:22Z")
Metta Go: Another App for Point Surveying Hi everyone. While searching for free point surveying apps, I found this app which is very simple but allows you to survey and stake out points, change the reference system, an… --- ## [Video on on how to split and print the thicker enclosure for RTK Postcard and Portability Shield](https://community.sparkfun.com/t/video-on-on-how-to-split-and-print-the-thicker-enclosure-for-rtk-postcard-and-portability-shield/68724)
**Author:** [@JohnEH](https://community.sparkfun.com/u/JohnEH)\ **Replies:** 2\ **Last updated:** [May 24, 2026, 5:26am UTC](https://community.sparkfun.com/t/video-on-on-how-to-split-and-print-the-thicker-enclosure-for-rtk-postcard-and-portability-shield/68724 "2026-05-24T05:26:24Z")
I got the Postcard and Portability Shield and then printed the STEP file from the documentation. It was not thick enough and looked hysterical.:grinning\_face: Then after a whole lot of googling I found that the RTK Post… --- ## [Help please, base/cast mode missing in Facet model GPS-19984](https://community.sparkfun.com/t/help-please-base-cast-mode-missing-in-facet-model-gps-19984/68829)
**Author:** [@AthensJim](https://community.sparkfun.com/u/AthensJim)\ **Replies:** 7\ **Last updated:** [May 24, 2026, 12:05am UTC](https://community.sparkfun.com/t/help-please-base-cast-mode-missing-in-facet-model-gps-19984/68829 "2026-05-24T00:05:39Z")
Hey guys.. obviously im new here, but im at my wits end.. i just bought 2 of these units for offline local ntrip due to no wifi/cell signal where i plan on using them, they both came with v4.1 in them and i upgraded 1 … --- ## [Which of the sparkpnt fp models will perform best under tree canopy / urban canyons?](https://community.sparkfun.com/t/which-of-the-sparkpnt-fp-models-will-perform-best-under-tree-canopy-urban-canyons/68769)
**Author:** [@pleroux](https://community.sparkfun.com/u/pleroux)\ **Replies:** 7\ **Last updated:** [May 22, 2026, 10:39pm UTC](https://community.sparkfun.com/t/which-of-the-sparkpnt-fp-models-will-perform-best-under-tree-canopy-urban-canyons/68769 "2026-05-22T22:39:40Z")
Wondering which of the different chipsets in the sparkpnt fp’s will work best under tree canopy and in urban canyon environments ? yes , i know it is not a simple issue or answer , but opinions / experiences are sought… --- ## [Postcard not receiving corrections over serial](https://community.sparkfun.com/t/postcard-not-receiving-corrections-over-serial/68796)
**Author:** [@longway5](https://community.sparkfun.com/u/longway5)\ **Replies:** 2\ **Last updated:** [May 20, 2026, 12:52am UTC](https://community.sparkfun.com/t/postcard-not-receiving-corrections-over-serial/68796 "2026-05-20T00:52:07Z")
Hi all, I’ve got a pair of postcards (with portability shields) and I’m trying to setup corrections over a serial radio link, but I can’t seem to receive a corrections signal. I’m using RTK Everywhere v.3.3 on both post… --- ## [Suggestion for RTK solution for dynamic vehicle tracking](https://community.sparkfun.com/t/suggestion-for-rtk-solution-for-dynamic-vehicle-tracking/68621)
**Author:** [@Jesse\_P](https://community.sparkfun.com/u/Jesse_P)\ **Replies:** 9\ **Last updated:** [May 19, 2026, 12:23pm UTC](https://community.sparkfun.com/t/suggestion-for-rtk-solution-for-dynamic-vehicle-tracking/68621 "2026-05-19T12:23:45Z")
Hi everyone, My team and I are currently preparing a demonstration that requires accurate, real-time tracking of an electrical prototype car to create a VR-overlay. For this application, we are looking for a GNSS solut… --- ## [Updating Firmware on](https://community.sparkfun.com/t/updating-firmware-on/68793)
**Author:** [@pleroux](https://community.sparkfun.com/u/pleroux)\ **Replies:** 3\ **Last updated:** [May 19, 2026, 9:29am UTC](https://community.sparkfun.com/t/updating-firmware-on/68793 "2026-05-19T09:29:29Z")
Hi all. i am attempting to update firmware on a rtk surveyor v1.8 oct 7 2021. In teraterm vt it appears to indicate zed-f9p firmware: hpg 1.12. According to online instructions there should be an “f” option to upgrad… --- ## [TOP106/RTK Surveyor not receiving any satellites](https://community.sparkfun.com/t/top106-rtk-surveyor-not-receiving-any-satellites/68755)
**Author:** [@pleroux](https://community.sparkfun.com/u/pleroux)\ **Replies:** 13\ **Last updated:** [May 18, 2026, 11:20pm UTC](https://community.sparkfun.com/t/top106-rtk-surveyor-not-receiving-any-satellites/68755 "2026-05-18T23:20:36Z")
Good morning. My TOP 106 is not receiving any satellites this morning. Antenna has clear skies. All was working fine yesterday. The cable is intact and pairing is working. I am using MicroSurvey FieldGenius. I can se… --- ## [Postcard Portability Shield: Display Brightness Issue](https://community.sparkfun.com/t/postcard-portability-shield-display-brightness-issue/68768)
**Author:** [@amlago](https://community.sparkfun.com/u/amlago)\ **Replies:** 12\ **Last updated:** [May 18, 2026, 1:56pm UTC](https://community.sparkfun.com/t/postcard-portability-shield-display-brightness-issue/68768 "2026-05-18T13:56:53Z")
Postcard Portability Shield: Display Brightness Issue Hi @sparky and @PaulZC I’ve had my Postcard with its portability shield for over a year now. Lately, the shield is barely visible; it’s very dim, and sometimes a ho… --- ## [LG290P on Linux](https://community.sparkfun.com/t/lg290p-on-linux/68684)
**Author:** [@JohnEH](https://community.sparkfun.com/u/JohnEH)\ **Replies:** 6\ **Last updated:** [May 16, 2026, 2:50pm UTC](https://community.sparkfun.com/t/lg290p-on-linux/68684 "2026-05-16T14:50:38Z")
Figured out the QGNSS software and RTK so I thought I’d give it a shot on a Pi. Easiest route is by using pygpsclient. I can only get an RTK Float because everything is indoors and it is a crummy rainy day. This is a… --- ## [Defective LG290P & IM19 IMU board?](https://community.sparkfun.com/t/defective-lg290p-im19-imu-board/68774)
**Author:** [@brhackle](https://community.sparkfun.com/u/brhackle)\ **Replies:** 4\ **Last updated:** [May 15, 2026, 4:35pm UTC](https://community.sparkfun.com/t/defective-lg290p-im19-imu-board/68774 "2026-05-15T16:35:30Z")
We’re building a test rig and recently ordered (#000219718) the SparkPNT GNSS Flex Module - LG290P & IM19 IMU (SKU GPS-29469), along with the other versions for the mosaic-G5 P3 and ZED-X20P. Unfortunately it looks like … --- ## [Data collector sw supporting new sparkpnt facet fp receivers with Tilt](https://community.sparkfun.com/t/data-collector-sw-supporting-new-sparkpnt-facet-fp-receivers-with-tilt/68765)
**Author:** [@pleroux](https://community.sparkfun.com/u/pleroux)\ **Replies:** 3\ **Last updated:** [May 14, 2026, 11:31pm UTC](https://community.sparkfun.com/t/data-collector-sw-supporting-new-sparkpnt-facet-fp-receivers-with-tilt/68765 "2026-05-14T23:31:14Z")
Forum. Which field survey data collector software supports the new sparkpnt facet fp models with tilt compensation? I currently use fieldgenius, but i do not see support for nmea devices WITH tilt compensation. Thank … --- ## [ZED-F9P rover not seeing RTCM corrections via RFD900+ radio bridge](https://community.sparkfun.com/t/zed-f9p-rover-not-seeing-rtcm-corrections-via-rfd900-radio-bridge/68747)
**Author:** [@60bubba](https://community.sparkfun.com/u/60bubba)\ **Replies:** 3\ **Last updated:** [May 12, 2026, 7:33pm UTC](https://community.sparkfun.com/t/zed-f9p-rover-not-seeing-rtcm-corrections-via-rfd900-radio-bridge/68747 "2026-05-12T19:33:13Z")
Good morning all! I am currently building a mapping quadcopter. I teach UAS at a local college, so the mapping/photogrammetry part of this isn’t too difficult for me. I’m trying to do all this with development boards, … --- ## [SparkPNT FPX / Ashtech](https://community.sparkfun.com/t/sparkpnt-fpx-ashtech/68749)
**Author:** [@rago](https://community.sparkfun.com/u/rago)\ **Replies:** 3\ **Last updated:** [May 12, 2026, 7:31pm UTC](https://community.sparkfun.com/t/sparkpnt-fpx-ashtech/68749 "2026-05-12T19:31:36Z")
Hello, We have an old Ashtech RTK GPS and are considering buying your Spark PNT FPX. I have a few questions that I’m hoping you can answer. We use our old RTK GPS as a Base and Rover pair to spot the stations for our G… --- ## [RTK NTRIP / Base Station Question](https://community.sparkfun.com/t/rtk-ntrip-base-station-question/68679)
**Author:** [@JohnEH](https://community.sparkfun.com/u/JohnEH)\ **Replies:** 10\ **Last updated:** [May 12, 2026, 1:50pm UTC](https://community.sparkfun.com/t/rtk-ntrip-base-station-question/68679 "2026-05-12T13:50:34Z")
I have been dabbling with GPS modules for a long time but recently got my first RTK board. I got the LG290P Breakout board and just got my first Fixed RTK lock yesterday using QGNSS. The nearest free NTRIP server to me… --- ## [Rtk torch: is there a method to restart LoRa](https://community.sparkfun.com/t/rtk-torch-is-there-a-method-to-restart-lora/68725)
**Author:** [@Patrick\_Davis](https://community.sparkfun.com/u/Patrick_Davis)\ **Replies:** 2\ **Last updated:** [May 11, 2026, 6:39pm UTC](https://community.sparkfun.com/t/rtk-torch-is-there-a-method-to-restart-lora/68725 "2026-05-11T18:39:14Z")
I am using two rtk torches. They have the latest firmware as of this post (v3.3 firmware, stm32 v2.02, and latest for un980). I have one torch in base mode with LoRa on, and the other in rover mode with LoRa on. After… --- ## [Rtk torch: does exiting the bluetooth serial config menu cause the torch to completely restart?](https://community.sparkfun.com/t/rtk-torch-does-exiting-the-bluetooth-serial-config-menu-cause-the-torch-to-completely-restart/68726)
**Author:** [@Patrick\_Davis](https://community.sparkfun.com/u/Patrick_Davis)\ **Replies:** 2\ **Last updated:** [May 11, 2026, 3:31pm UTC](https://community.sparkfun.com/t/rtk-torch-does-exiting-the-bluetooth-serial-config-menu-cause-the-torch-to-completely-restart/68726 "2026-05-11T15:31:46Z")
I have two torches: one is a rover and one is a base. They both have the latest firmware as of writing: v3.3, stm32 2.0.2, latest um980 firmware I have LoRa enabled for both of them. After 1.5 or so hrs of running, th… --- ## [Problems with Torch and SW Maps V1.3.0 (iOS) \[May 2026\]](https://community.sparkfun.com/t/problems-with-torch-and-sw-maps-v1-3-0-ios-may-2026/68729)
**Author:** [@rftop](https://community.sparkfun.com/u/rftop)\ **Replies:** 2\ **Last updated:** [May 11, 2026, 12:41pm UTC](https://community.sparkfun.com/t/problems-with-torch-and-sw-maps-v1-3-0-ios-may-2026/68729 "2026-05-11T12:41:03Z")
Torch on v3.3, UM980 firmware: 17548 I cant get any SIV with SW Maps iOS V1.3.0 (latest). I’ve re-flashed V3.3 firmware and reset to factory defaults. Also, it gets mad about simple changes like requesting a 1Hz meas… --- ## [RTK\_Everywhere release 3.3 Source doe not build locally in Docker](https://community.sparkfun.com/t/rtk-everywhere-release-3-3-source-doe-not-build-locally-in-docker/68731)
**Author:** [@LenS](https://community.sparkfun.com/u/LenS)\ **Replies:** 4\ **Last updated:** [May 11, 2026, 7:18am UTC](https://community.sparkfun.com/t/rtk-everywhere-release-3-3-source-doe-not-build-locally-in-docker/68731 "2026-05-11T07:18:52Z")
The version 3.3 does not build. Here is the error: =\> \[upstream 9/30\] RUN arduino-cli core install "esp32:esp32@3.0.7" 150.1s =\> \[upstream 10/30\] RUN arduino-cli lib install… --- ## [Question about SparkFun GNSS Combo Breakout](https://community.sparkfun.com/t/question-about-sparkfun-gnss-combo-breakout/68736)
**Author:** [@JohnEH](https://community.sparkfun.com/u/JohnEH)\ **Replies:** 3\ **Last updated:** [May 11, 2026, 2:14am UTC](https://community.sparkfun.com/t/question-about-sparkfun-gnss-combo-breakout/68736 "2026-05-11T02:14:47Z")
Price nearly cut in half. It has a note stating that the Point Perfect L Band service has shut down. This can still work as a base station and send data to a phone or rover, is that correct? That’s a pretty good price… --- ## [Questions regarding the new SparkPNT unit](https://community.sparkfun.com/t/questions-regarding-the-new-sparkpnt-unit/68506)
**Author:** [@jobina](https://community.sparkfun.com/u/jobina)\ **Replies:** 22\ **Last updated:** [May 8, 2026, 1:34pm UTC](https://community.sparkfun.com/t/questions-regarding-the-new-sparkpnt-unit/68506 "2026-05-08T13:34:07Z")
Hi, I’m looking into purchasing 2 SparkPNT FPX (one with tilt) to use as a base and rover for on site survey. Before doing so, I had the following questions: How do you go about “linking” 2 units via the Lora radio inc… --- ## [X20P 5V Out](https://community.sparkfun.com/t/x20p-5v-out/68712)
**Author:** [@TRM](https://community.sparkfun.com/u/TRM)\ **Replies:** 3\ **Last updated:** [May 7, 2026, 9:42pm UTC](https://community.sparkfun.com/t/x20p-5v-out/68712 "2026-05-07T21:42:14Z")
Hello, I am trying to replace some F9P boards with X20P boards. I am using the 5V out pin on the F9P to power a telemetry radio for RTK, but that power option doesn’t exist on the X20P. Is it possible to set the VSEL ju… --- ## [Broadcasting RTCM over Bluetooth questions](https://community.sparkfun.com/t/broadcasting-rtcm-over-bluetooth-questions/68711)
**Author:** [@Patrick\_Davis](https://community.sparkfun.com/u/Patrick_Davis)\ **Replies:** 1\ **Last updated:** [May 7, 2026, 8:38pm UTC](https://community.sparkfun.com/t/broadcasting-rtcm-over-bluetooth-questions/68711 "2026-05-07T20:38:13Z")
To get the RTK Torch in base mode to broadcast RTCM messages on bluetooth, is it as simple as turning it on and setting the rate in the “messages” submenu on the GNSS menu? Also, in the messages submenu of the GNSS menu… --- ## [GNSS and Ntrip signals both connected wireless](https://community.sparkfun.com/t/gnss-and-ntrip-signals-both-connected-wireless/68709)
**Author:** [@navytech](https://community.sparkfun.com/u/navytech)\ **Replies:** 9\ **Last updated:** [May 7, 2026, 6:42pm UTC](https://community.sparkfun.com/t/gnss-and-ntrip-signals-both-connected-wireless/68709 "2026-05-07T18:42:56Z")
I usually send Gnss output through the usb port to a Windows tough tablet and ntrip over Blue tooth from a cell phone to the X2. Can I do both task wireless. No usb cable. --- ## [Upgraded to Facet 4.4 firmware, seems to log data at 1hz (too fast)](https://community.sparkfun.com/t/upgraded-to-facet-4-4-firmware-seems-to-log-data-at-1hz-too-fast/68710)
**Author:** [@rfs03048](https://community.sparkfun.com/u/rfs03048)\ **Replies:** 1\ **Last updated:** [May 7, 2026, 12:15pm UTC](https://community.sparkfun.com/t/upgraded-to-facet-4-4-firmware-seems-to-log-data-at-1hz-too-fast/68710 "2026-05-07T12:15:53Z")
Good morning: I am pretty certain that since upgrading the Facet to 4.4 I cannot reduce the sampling rate. I have three profiles - a mobile and two stationary, and I am trying to collect raw logs from three constellat… [Previous page](https://community.sparkfun.com/c/global-positioning-system-gps/96.md?page=2) [Next page](https://community.sparkfun.com/c/global-positioning-system-gps/96.md?page=4)