# Skydel Discussion **URL:** https://learn.safran-navigation-timing.com/c/skydel-discussion/6.md?page=1 [Latest](https://learn.safran-navigation-timing.com/latest.md) · [Categories](https://learn.safran-navigation-timing.com/categories.md) **Page:** 2 --- ## [GNSSource-2500 & iSyncMgr](https://learn.safran-navigation-timing.com/t/gnssource-2500-isyncmgr/1216)
**Author:** [@j\_amghar](https://learn.safran-navigation-timing.com/u/j_amghar)\ **Replies:** 1\ **Last updated:** [March 26, 2024, 8:45pm UTC](https://learn.safran-navigation-timing.com/t/gnssource-2500-isyncmgr/1216 "2024-03-26T20:45:55Z")
Hello, I use a GNSSource-2500 to synchronize my receivers and have been researching how to use the device in a Linux environment and retrieve information such as GPS information and timing via the command line or Python… --- ## [Streaming buffer underrun with multiple signals](https://learn.safran-navigation-timing.com/t/streaming-buffer-underrun-with-multiple-signals/1222)
**Author:** [@Zaynab](https://learn.safran-navigation-timing.com/u/Zaynab)\ **Replies:** 1\ **Last updated:** [March 26, 2024, 3:41pm UTC](https://learn.safran-navigation-timing.com/t/streaming-buffer-underrun-with-multiple-signals/1222 "2024-03-26T15:41:07Z")
Hello, I’m encountering an issue when conducting simulations with multiple signals—whether it involves using one RF signal with another as interference, or managing GNSS Upper L-Band and Lower L-Band signals on separate… --- ## [Streaming buffer underrun error](https://learn.safran-navigation-timing.com/t/streaming-buffer-underrun-error/1207)
**Author:** [@sgp](https://learn.safran-navigation-timing.com/u/sgp)\ **Replies:** 6\ **Last updated:** [March 5, 2024, 3:13pm UTC](https://learn.safran-navigation-timing.com/t/streaming-buffer-underrun-error/1207 "2024-03-05T15:13:28Z")
Hello, We have suddenly run into a problem where the Skydel simulator (version: 21.9.1) consistently throws the error below: 2024-02-07 22:40:40.728358: \ Simulator State: Error 2024-02-07 22:40:40.764746: \ … --- ## [Skydel v23.12 Error: Unable to create UHD Streamer: RuntimeError: On Node 0/DmaFIFO\_0, input port 0 is already connected](https://learn.safran-navigation-timing.com/t/skydel-v23-12-error-unable-to-create-uhd-streamer-runtimeerror-on-node-0-dmafifo-0-input-port-0-is-already-connected/1204)
**Author:** [@grote](https://learn.safran-navigation-timing.com/u/grote)\ **Replies:** 2\ **Last updated:** [February 13, 2024, 2:52pm UTC](https://learn.safran-navigation-timing.com/t/skydel-v23-12-error-unable-to-create-uhd-streamer-runtimeerror-on-node-0-dmafifo-0-input-port-0-is-already-connected/1204 "2024-02-13T14:52:52Z")
Hello, We are experiencing some issues with Skydel running on Ubuntu 22.04.3 LTS with the hwe kernel 6.5.0-17-generic paired with an Nvidia RTX 4070. We have tried a couple different Nvidia driver versions all installed… --- ## [RTCM3 support](https://learn.safran-navigation-timing.com/t/rtcm3-support/1196)
**Author:** [@mac21](https://learn.safran-navigation-timing.com/u/mac21)\ **Replies:** 5\ **Last updated:** [January 29, 2024, 6:57pm UTC](https://learn.safran-navigation-timing.com/t/rtcm3-support/1196 "2024-01-29T18:57:09Z")
I am using Skydel GSG-7 for GNSS simulation.As i can see in the receiver section skydel can parse specific NMEA 0183 v4.1 sentences. My question is can it also parse RTCM3 data and can it also decode MSM7 messages? --- ## [Skydel for RINEX observation files](https://learn.safran-navigation-timing.com/t/skydel-for-rinex-observation-files/424)
**Author:** [@rburke](https://learn.safran-navigation-timing.com/u/rburke)\ **Replies:** 30\ **Last updated:** [January 12, 2024, 4:45pm UTC](https://learn.safran-navigation-timing.com/t/skydel-for-rinex-observation-files/424 "2024-01-12T16:45:16Z")
This question came in via e-mail today from our friends at the University of Oregon We would like to use Skydel for a new project but we could not find the way of creating RINEX observation files. I assumed we could out… --- ## [Skydel & dSPACE HIL](https://learn.safran-navigation-timing.com/t/skydel-dspace-hil/1186)
**Author:** [@rburke](https://learn.safran-navigation-timing.com/u/rburke)\ **Replies:** 0\ **Last updated:** [December 15, 2023, 12:44pm UTC](https://learn.safran-navigation-timing.com/t/skydel-dspace-hil/1186 "2023-12-15T12:44:26Z")
Nice video on HIL done by dSPACE --- ## [Jammertest 2023](https://learn.safran-navigation-timing.com/t/jammertest-2023/1182)
**Author:** [@A-D](https://learn.safran-navigation-timing.com/u/A-D)\ **Replies:** 0\ **Last updated:** [December 11, 2023, 6:57pm UTC](https://learn.safran-navigation-timing.com/t/jammertest-2023/1182 "2023-12-11T18:57:01Z")
To help safeguard critical infrastructure, transportation systems, and military operations reliant on accurate PNT data, the Norwegian Communications Authority (NKOM) established an annual event called Jammertest in Blei… --- ## [Which of the BeiDou satellites does Skydel simulate?](https://learn.safran-navigation-timing.com/t/which-of-the-beidou-satellites-does-skydel-simulate/92)
**Author:** [@tim.erbes](https://learn.safran-navigation-timing.com/u/tim.erbes)\ **Replies:** 2\ **Last updated:** [December 8, 2023, 3:17pm UTC](https://learn.safran-navigation-timing.com/t/which-of-the-beidou-satellites-does-skydel-simulate/92 "2023-12-08T15:17:27Z")
From https://en.wikipedia.org/wiki/List\_of\_BeiDou\_satellites I can see that BeiDou has, 42 satellites. 6 are in geostationary orbits (GEO), 10 are in 55° inclined geosynchronous orbits (IGSO) and 26 are in Medium Eart… --- ## [Skydel instance crashes 1hour before last Record in Rinex GLONASS navigation file](https://learn.safran-navigation-timing.com/t/skydel-instance-crashes-1hour-before-last-record-in-rinex-glonass-navigation-file/1165)
**Author:** [@kchereshnev](https://learn.safran-navigation-timing.com/u/kchereshnev)\ **Replies:** 15\ **Last updated:** [November 29, 2023, 2:29pm UTC](https://learn.safran-navigation-timing.com/t/skydel-instance-crashes-1hour-before-last-record-in-rinex-glonass-navigation-file/1165 "2023-11-29T14:29:59Z")
GSG-842 Simulator Skydel version 23.8.0 issue: Skydel instance crashes Most probable reason: If RINEX GLONASS navigational messages file was imported into your configuration Skydel crashes with 100% repeatability 1 ho… --- ## [Skydel 23.8.0 CUDA ERROR Message: unspecified launch failure](https://learn.safran-navigation-timing.com/t/skydel-23-8-0-cuda-error-message-unspecified-launch-failure/1162)
**Author:** [@grote](https://learn.safran-navigation-timing.com/u/grote)\ **Replies:** 4\ **Last updated:** [October 30, 2023, 7:24pm UTC](https://learn.safran-navigation-timing.com/t/skydel-23-8-0-cuda-error-message-unspecified-launch-failure/1162 "2023-10-30T19:24:24Z")
Hello, We recently installed the latest version of Skydel V23.8.0 and are using an Nvidia RTX 4070 GPU paired with our Ettus X310 SDR to perform various simulations one after another. We are seeing random cases of the f… --- ## [CUDA error message: invalid device symbol after Skydel upgrade to v23.8.0](https://learn.safran-navigation-timing.com/t/cuda-error-message-invalid-device-symbol-after-skydel-upgrade-to-v23-8-0/1163)
**Author:** [@kchereshnev](https://learn.safran-navigation-timing.com/u/kchereshnev)\ **Replies:** 3\ **Last updated:** [October 16, 2023, 7:36pm UTC](https://learn.safran-navigation-timing.com/t/cuda-error-message-invalid-device-symbol-after-skydel-upgrade-to-v23-8-0/1163 "2023-10-16T19:36:05Z")
Hi, i have recently upgraded our GSG-842 simulator to version 23.8.0 after that i cannot Start any simulation, because following error: CUDA error message: invalid device symbol error appears even if i create Defaul… --- ## [CUDA compute capability 8.9](https://learn.safran-navigation-timing.com/t/cuda-compute-capability-8-9/1139)
**Author:** [@mspanghero](https://learn.safran-navigation-timing.com/u/mspanghero)\ **Replies:** 9\ **Last updated:** [October 16, 2023, 8:15am UTC](https://learn.safran-navigation-timing.com/t/cuda-compute-capability-8-9/1139 "2023-10-16T08:15:07Z")
Hi there, We are running into an issue with the CUDA compute capability of Skydel. I am not sure capability 8.9 is supported looking at the example configurations. With an RTX 4090, the cuFFT test fails with Error valu… --- ## [Will windows automatic upgrade affect skydel?](https://learn.safran-navigation-timing.com/t/will-windows-automatic-upgrade-affect-skydel/1078)
**Author:** [@Akio](https://learn.safran-navigation-timing.com/u/Akio)\ **Replies:** 3\ **Last updated:** [September 7, 2023, 12:30pm UTC](https://learn.safran-navigation-timing.com/t/will-windows-automatic-upgrade-affect-skydel/1078 "2023-09-07T12:30:16Z")
My Skydel can run well in the win10 at present, I want to know if the PC is automatically upgraded to WIN11, will it affect the use of the software? Do users need to re-apply for license? --- ## [Vehicle/Antenna Orientation - Order of Operations](https://learn.safran-navigation-timing.com/t/vehicle-antenna-orientation-order-of-operations/1150)
**Author:** [@mallory.flynn](https://learn.safran-navigation-timing.com/u/mallory.flynn)\ **Replies:** 1\ **Last updated:** [August 31, 2023, 8:11pm UTC](https://learn.safran-navigation-timing.com/t/vehicle-antenna-orientation-order-of-operations/1150 "2023-08-31T20:11:45Z")
What is the order of operations that Skydel accounts for yaw, pitch, and roll to determine SV power levels? Is the same order of operations used for the vehicle orientation and antenna orientation? --- ## [I am not able to get position solution using simulated files](https://learn.safran-navigation-timing.com/t/i-am-not-able-to-get-position-solution-using-simulated-files/1126)
**Author:** [@Nitin](https://learn.safran-navigation-timing.com/u/Nitin)\ **Replies:** 3\ **Last updated:** [July 26, 2023, 7:14pm UTC](https://learn.safran-navigation-timing.com/t/i-am-not-able-to-get-position-solution-using-simulated-files/1126 "2023-07-26T19:14:16Z")
Hi I am using software GNSS Receivers to get PVT solution for the bin/iq files generated using Skydel simulator, However I am not able to get the PVT solution for any constellation except for GPS L1CA. The C/No for all… --- ## [Spoofing time instead of location using Skydel](https://learn.safran-navigation-timing.com/t/spoofing-time-instead-of-location-using-skydel/1119)
**Author:** [@ClemensKIT](https://learn.safran-navigation-timing.com/u/ClemensKIT)\ **Replies:** 1\ **Last updated:** [July 26, 2023, 1:43pm UTC](https://learn.safran-navigation-timing.com/t/spoofing-time-instead-of-location-using-skydel/1119 "2023-07-26T13:43:56Z")
We want to test the resilience of GNSS timing receivers to spoofing, i.e. we want to introduce time errors of milli-/ microseconds. The idea is the following: One SDR should transmit the ‘genuine’ signal, the other one t… --- ## [National Instruments USRP X410](https://learn.safran-navigation-timing.com/t/national-instruments-usrp-x410/671)
**Author:** [@alblinks](https://learn.safran-navigation-timing.com/u/alblinks)\ **Replies:** 1\ **Last updated:** [May 12, 2023, 9:50am UTC](https://learn.safran-navigation-timing.com/t/national-instruments-usrp-x410/671 "2023-05-12T09:50:30Z")
The X410 marks the latest development step in NI’s USRP product range. It would be really nice if this hardware would be supported in a future version of Skydel as well. --- ## [Testing Galileo OS-NMA Capability](https://learn.safran-navigation-timing.com/t/testing-galileo-os-nma-capability/1088)
**Author:** [@A-D](https://learn.safran-navigation-timing.com/u/A-D)\ **Replies:** 2\ **Last updated:** [May 4, 2023, 12:52pm UTC](https://learn.safran-navigation-timing.com/t/testing-galileo-os-nma-capability/1088 "2023-05-04T12:52:46Z")
Following up on our recent announcement of Skydel’s Galileo OS-NMA support, we are very pleased to publish the following application note and toolkit. Read more here: This application note and related GitHub repositor… --- ## [Delayed Start time of Raw data log for Transmitter](https://learn.safran-navigation-timing.com/t/delayed-start-time-of-raw-data-log-for-transmitter/1091)
**Author:** [@kchereshnev](https://learn.safran-navigation-timing.com/u/kchereshnev)\ **Replies:** 3\ **Last updated:** [April 26, 2023, 8:29pm UTC](https://learn.safran-navigation-timing.com/t/delayed-start-time-of-raw-data-log-for-transmitter/1091 "2023-04-26T20:29:33Z")
Hi community, I have a question about Start time of raw data log of Transmitter parameters: when i enable Raw Logging (csv) in my scenario with 10Hz rate i can see, that first epoch in csv file is referenced as 500ms: … --- ## [StudioView to Skydel Trajectory Creation/Conversion](https://learn.safran-navigation-timing.com/t/studioview-to-skydel-trajectory-creation-conversion/257)
**Author:** [@rburke](https://learn.safran-navigation-timing.com/u/rburke)\ **Replies:** 3\ **Last updated:** [April 23, 2023, 11:56pm UTC](https://learn.safran-navigation-timing.com/t/studioview-to-skydel-trajectory-creation-conversion/257 "2023-04-23T23:56:21Z")
For those of you who have our essential GSG5 and 6 simulators. Did you know that you could build trajectories in StudioView software and migrate it to Skydel? --- ## [Multipath Signals and Doppler Shift](https://learn.safran-navigation-timing.com/t/multipath-signals-and-doppler-shift/1086)
**Author:** [@mallory.flynn](https://learn.safran-navigation-timing.com/u/mallory.flynn)\ **Replies:** 1\ **Last updated:** [April 20, 2023, 3:34pm UTC](https://learn.safran-navigation-timing.com/t/multipath-signals-and-doppler-shift/1086 "2023-04-20T15:34:52Z")
Hi Skydel Team! I received an email from a customer and need help deciphering an answer for them. The question is below. Hey so I have a question about how doppler is added to multipath signals. In the manual it states… --- ## [PRS File](https://learn.safran-navigation-timing.com/t/prs-file/1081)
**Author:** [@Martin\_Vicom](https://learn.safran-navigation-timing.com/u/Martin_Vicom)\ **Replies:** 8\ **Last updated:** [April 11, 2023, 1:04pm UTC](https://learn.safran-navigation-timing.com/t/prs-file/1081 "2023-04-11T13:04:00Z")
Hi, playing around with interference and get error message that failed to load PRS library and that I need to set it in preferences. No worries on that. What is a PRS file ??? Can you point me in a direction please ? --- ## [Reference power for Interference output is not clear](https://learn.safran-navigation-timing.com/t/reference-power-for-interference-output-is-not-clear/1074)
**Author:** [@kchereshnev](https://learn.safran-navigation-timing.com/u/kchereshnev)\ **Replies:** 4\ **Last updated:** [April 5, 2023, 4:03pm UTC](https://learn.safran-navigation-timing.com/t/reference-power-for-interference-output-is-not-clear/1074 "2023-04-05T16:03:59Z")
hello Community! i have GSG-842 in my Lab and wanted to clarify folowing question. I have setup RF output 4 as Interference. Gain value = 30dB In General setting for Interference there is Reference power in dBm. F… --- ## [Orolia --\> Safran](https://learn.safran-navigation-timing.com/t/orolia-safran/1069)
**Author:** [@A-D](https://learn.safran-navigation-timing.com/u/A-D)\ **Replies:** 0\ **Last updated:** [March 21, 2023, 9:07pm UTC](https://learn.safran-navigation-timing.com/t/orolia-safran/1069 "2023-03-21T21:07:17Z")
In case some of you are wondering if something changed with the Skydel User Forums, we thought it might be a good idea to explain why there’s been a small change. Last year, Safran’s acquisition of Orolia marked an impo… --- ## [Galileo OS-NMA Support](https://learn.safran-navigation-timing.com/t/galileo-os-nma-support/1062)
**Author:** [@A-D](https://learn.safran-navigation-timing.com/u/A-D)\ **Replies:** 0\ **Last updated:** [March 15, 2023, 2:28pm UTC](https://learn.safran-navigation-timing.com/t/galileo-os-nma-support/1062 "2023-03-15T14:28:20Z")
Skydel will soon support the Galileo OS-NMA service in the form of two phased and separate solutions. These solutions will be available to customers that have purchased the Galileo constellation. For more information, … --- ## [Spectrum Plot Power Calculation](https://learn.safran-navigation-timing.com/t/spectrum-plot-power-calculation/97)
**Author:** [@Chris\_Kiedrowicz](https://learn.safran-navigation-timing.com/u/Chris_Kiedrowicz)\ **Replies:** 3\ **Last updated:** [March 2, 2023, 4:23pm UTC](https://learn.safran-navigation-timing.com/t/spectrum-plot-power-calculation/97 "2023-03-02T16:23:04Z")
How is power calculated for the plots in the Spectrums tab? Is it measuring the simulated RF? --- ## [OpenStreetMap SSL Error](https://learn.safran-navigation-timing.com/t/openstreetmap-ssl-error/148)
**Author:** [@ToppDev](https://learn.safran-navigation-timing.com/u/ToppDev)\ **Replies:** 4\ **Last updated:** [February 17, 2023, 2:18am UTC](https://learn.safran-navigation-timing.com/t/openstreetmap-ssl-error/148 "2023-02-17T02:18:05Z")
Hello, I just installed the Skydel Software on our Server. Everything seems to work but the OpenStreetMap. We are running an Ubuntu 20.04 Server with Skydel Version 20.9.5 (990421737) Academic License. The moment I cl… --- ## [Interference & Jamming with Skydel](https://learn.safran-navigation-timing.com/t/interference-jamming-with-skydel/522)
**Author:** [@rburke](https://learn.safran-navigation-timing.com/u/rburke)\ **Replies:** 4\ **Last updated:** [January 25, 2023, 4:19pm UTC](https://learn.safran-navigation-timing.com/t/interference-jamming-with-skydel/522 "2023-01-25T16:19:36Z")
I often get the question about what types of signals can be generated when creating interference and jamming. The answer is actually surprising since it is “almost any type” as long as within the capabilities of the rad… --- ## [Using a unique Script for sending the commands to several instances](https://learn.safran-navigation-timing.com/t/using-a-unique-script-for-sending-the-commands-to-several-instances/990)
**Author:** [@Sylvain](https://learn.safran-navigation-timing.com/u/Sylvain)\ **Replies:** 1\ **Last updated:** [January 5, 2023, 3:15pm UTC](https://learn.safran-navigation-timing.com/t/using-a-unique-script-for-sending-the-commands-to-several-instances/990 "2023-01-05T15:15:08Z")
We got several times the question about addressing multi-Instances of Skydel using a unique script example. “Looking for a script that could be sending the command to a specific or several instances.” This article will… [Previous page](https://learn.safran-navigation-timing.com/c/skydel-discussion/6.md) [Next page](https://learn.safran-navigation-timing.com/c/skydel-discussion/6.md?page=2)