# RAN Forum

**URL:** https://discourse.myriadrf.org/c/projects/ran-forum/33.md

[Latest](https://discourse.myriadrf.org/latest.md) · [Categories](https://discourse.myriadrf.org/categories.md)

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## [About the RAN Forum category](https://discourse.myriadrf.org/t/about-the-ran-forum-category/1944)

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**Author:** [@andrewback](https://discourse.myriadrf.org/u/andrewback)\
**Replies:** 0

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## [LTE "Basestation" for RF testing](https://discourse.myriadrf.org/t/lte-basestation-for-rf-testing/12984)

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**Author:** [@wilhe\_jo](https://discourse.myriadrf.org/u/wilhe_jo)\
**Replies:** 9\
**Last updated:** [16 February 2026 18:29 UTC](https://discourse.myriadrf.org/t/lte-basestation-for-rf-testing/12984 "2026-02-16T18:29:21Z")

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Hi! I run a tiny EMC consulting business with an anechoic chamber. To do RF integration testing, I was thinking of implementing a “honeypot” for every cellphone/modem inside the anechoic chamber (I have \>120dB shieldin…

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## [LimeSDR with srsenb](https://discourse.myriadrf.org/t/limesdr-with-srsenb/7432)

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**Author:** [@nemanja](https://discourse.myriadrf.org/u/nemanja)\
**Replies:** 13\
**Last updated:** [2 September 2024 12:48 UTC](https://discourse.myriadrf.org/t/limesdr-with-srsenb/7432 "2024-09-02T12:48:51Z")

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Hi, I have found it difficult to run srsenb on Ubuntu 20.04. I am getting error showed on the image attached. As shown on image I can see LimeSDR listed but uhd\_find\_devices returns “No UHD Devices Found”.

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## [LimeSDR with OAI \[Runtime error: Error: signal 11\]](https://discourse.myriadrf.org/t/limesdr-with-oai-runtime-error-error-signal-11/7439)

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**Author:** [@nemanja](https://discourse.myriadrf.org/u/nemanja)\
**Replies:** 3\
**Last updated:** [1 September 2024 18:34 UTC](https://discourse.myriadrf.org/t/limesdr-with-oai-runtime-error-error-signal-11/7439 "2024-09-01T18:34:11Z")

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Hi All, I have cloned and built latest OAI: Building is done using following command: ./build\_oai -I -w LMSSDR --eNB --UE --nrUE --gNB If I probe LimeSDR I can see the device: But if I try to run OAI i got an ru…

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## [Yet another SetFrequencySXR/SXT(xxx MHz) - cannot deliver frequency issue](https://discourse.myriadrf.org/t/yet-another-setfrequencysxr-sxt-xxx-mhz-cannot-deliver-frequency-issue/8250)

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**Author:** [@iandiver](https://discourse.myriadrf.org/u/iandiver)\
**Replies:** 11\
**Last updated:** [26 March 2024 09:24 UTC](https://discourse.myriadrf.org/t/yet-another-setfrequencysxr-sxt-xxx-mhz-cannot-deliver-frequency-issue/8250 "2024-03-26T09:24:32Z")

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Seems this is a common issue, but I have not found a situation similar to mine. I am attempting to bring up an eNodeB using OpenAirInterface (OAI) software, but the LMS library is reporting “cannot deliver frequency” err…

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## [Open Source Software Stack for 3G](https://discourse.myriadrf.org/t/open-source-software-stack-for-3g/8034)

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**Author:** [@bugrahanserttas](https://discourse.myriadrf.org/u/bugrahanserttas)\
**Replies:** 0\
**Last updated:** [7 September 2023 13:54 UTC](https://discourse.myriadrf.org/t/open-source-software-stack-for-3g/8034 "2023-09-07T13:54:48Z")

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I am looking for open source software stack for 3G like OpenAirInterface for 5G or Osmocom for 2G for my work. (Osmocom has partial support for 3G) I request you to direct me to the right resource that may know. Thanks…

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## [Need to enable ASN NR in OAI](https://discourse.myriadrf.org/t/need-to-enable-asn-nr-in-oai/7867)

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**Author:** [@sachins](https://discourse.myriadrf.org/u/sachins)\
**Replies:** 4\
**Last updated:** [28 February 2023 16:04 UTC](https://discourse.myriadrf.org/t/need-to-enable-asn-nr-in-oai/7867 "2023-02-28T16:04:37Z")

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Hi, I am getting ASN encode fail but not sure where is it failing in OAI 5G codebase. Can please suggest how to enable ASN logging to debug the same.

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## [Osmo-bsc and OpenBSC on rPi4 with Limesdr Ubuntu Server 20.04 LTS](https://discourse.myriadrf.org/t/osmo-bsc-and-openbsc-on-rpi4-with-limesdr-ubuntu-server-20-04-lts/7162)

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**Author:** [@bastienbaranoff](https://discourse.myriadrf.org/u/bastienbaranoff)\
**Replies:** 4\
**Last updated:** [13 November 2022 15:49 UTC](https://discourse.myriadrf.org/t/osmo-bsc-and-openbsc-on-rpi4-with-limesdr-ubuntu-server-20-04-lts/7162 "2022-11-13T15:49:27Z")

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Osmo-bsc on rPi4 with Limesdr Ubuntu server 20.04 LTS #!/bin/bash rm -rf /opt/GSM mkdir /opt/GSM cd /opt/GSM apt update && sudo apt upgrade -y apt install -y libusb-1.0-0-dev libuhd-dev uhd-host cmake autoconf make git …

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## [SRS-RAN and XTRX](https://discourse.myriadrf.org/t/srs-ran-and-xtrx/7546)

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**Author:** [@dchard](https://discourse.myriadrf.org/u/dchard)\
**Replies:** 9\
**Last updated:** [14 August 2022 11:13 UTC](https://discourse.myriadrf.org/t/srs-ran-and-xtrx/7546 "2022-08-14T11:13:09Z")

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As XTRX is another LMS7002M based SDR, and as it seems we are having low level issues with the device, and the development ceased to exist for a long time now, I decided to open a topic here, maybe @Zack or @andrewback c…

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## [srsRAN using N310 SDR](https://discourse.myriadrf.org/t/srsran-using-n310-sdr/7633)

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**Author:** [@Aya](https://discourse.myriadrf.org/u/Aya)\
**Replies:** 1\
**Last updated:** [23 May 2022 06:32 UTC](https://discourse.myriadrf.org/t/srsran-using-n310-sdr/7633 "2022-05-23T06:32:13Z")

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Hi, I’m trying to duplicate the scenario presented in the latest version of srsRAN using 5g SA configuration. I followed the guidelines mentioned in this link https://docs.srsran.com/en/latest/app\_notes/source/5g\_sa\_ama…

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## [srsRAN stable connectivity with LimeSDR-mini](https://discourse.myriadrf.org/t/srsran-stable-connectivity-with-limesdr-mini/7291)

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**Author:** [@phoenix](https://discourse.myriadrf.org/u/phoenix)\
**Replies:** 0\
**Last updated:** [4 August 2021 23:31 UTC](https://discourse.myriadrf.org/t/srsran-stable-connectivity-with-limesdr-mini/7291 "2021-08-04T23:31:32Z")

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Hi there, I’m struggling with stable end-to-end connectivity with srsRAN LTE implementation. I’m using LimeSDR-mini as RF frontend for both enb and ue. Every time after successful connection, ping works between epc and …

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## [No cell synchronization found, abandoning](https://discourse.myriadrf.org/t/no-cell-synchronization-found-abandoning/7191)

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**Author:** [@kiuhnm72](https://discourse.myriadrf.org/u/kiuhnm72)\
**Replies:** 4\
**Last updated:** [17 June 2021 13:39 UTC](https://discourse.myriadrf.org/t/no-cell-synchronization-found-abandoning/7191 "2021-06-17T13:39:40Z")

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Hi everyone, For my project I have to run enb on USRP b210 and UE on LimeSDR board. I can successfully run enb with following command in TDD mode on USRP b210: sudo -E ./lte-softmodem -O …/…/…/ci-scripts/conf\_files/…

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## [Getting error when configure the file in limesdr](https://discourse.myriadrf.org/t/getting-error-when-configure-the-file-in-limesdr/7175)

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**Author:** [@avally](https://discourse.myriadrf.org/u/avally)\
**Replies:** 1\
**Last updated:** [6 June 2021 14:43 UTC](https://discourse.myriadrf.org/t/getting-error-when-configure-the-file-in-limesdr/7175 "2021-06-06T14:43:44Z")

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Hi, Everyone. I am trying to set up openair in limesdr but I am having trouble in this part. Please help. I copied the file from the repository but it didn’t work yet Tks in advance

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## [Error in installing osmo-bts-trx in Raspberry PI 4](https://discourse.myriadrf.org/t/error-in-installing-osmo-bts-trx-in-raspberry-pi-4/4995)

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**Author:** [@tikiarya](https://discourse.myriadrf.org/u/tikiarya)\
**Replies:** 4\
**Last updated:** [30 May 2021 21:31 UTC](https://discourse.myriadrf.org/t/error-in-installing-osmo-bts-trx-in-raspberry-pi-4/4995 "2021-05-30T21:31:37Z")

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Hello I am trying to install Osmocom NITB setup in Raspberry Pi. I am facing few issues(i have searched THE forum BEFORE posting the topic but could not find any direction) . 1:These are library i am building from sour…

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## [Progress of LimeSDR with VoLTE?](https://discourse.myriadrf.org/t/progress-of-limesdr-with-volte/7105)

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**Author:** [@Wisaam](https://discourse.myriadrf.org/u/Wisaam)\
**Replies:** 1\
**Last updated:** [27 April 2021 14:04 UTC](https://discourse.myriadrf.org/t/progress-of-limesdr-with-volte/7105 "2021-04-27T14:04:19Z")

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Has anyone been successful in running the LimeSDR with an LTE stack and IMS to test VoLTE capabilities? Also, does anyone know if the below setup requires a radio like the LimeSDR, there doesn’t seem to be any indicatio…

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## [Logiciel pour la partie radio du reseau GSM utilisant osmocom](https://discourse.myriadrf.org/t/logiciel-pour-la-partie-radio-du-reseau-gsm-utilisant-osmocom/7058)

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**Author:** [@Alioune](https://discourse.myriadrf.org/u/Alioune)\
**Replies:** 1\
**Last updated:** [31 March 2021 07:25 UTC](https://discourse.myriadrf.org/t/logiciel-pour-la-partie-radio-du-reseau-gsm-utilisant-osmocom/7058 "2021-03-31T07:25:14Z")

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bonjour je voulais crée un réseau GSM via le logiciel osmocom mais j’ai pas de materiel SDR maintenant je voulais le nom d’un logiciel qui me permettra de simuler la partie radio marci d’avance!

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## [What is the right antenna type I can use for the Limesdr device? Does anyone knows?](https://discourse.myriadrf.org/t/what-is-the-right-antenna-type-i-can-use-for-the-limesdr-device-does-anyone-knows/5614)

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**Author:** [@tekinzeyrek](https://discourse.myriadrf.org/u/tekinzeyrek)\
**Replies:** 4\
**Last updated:** [30 March 2021 12:37 UTC](https://discourse.myriadrf.org/t/what-is-the-right-antenna-type-i-can-use-for-the-limesdr-device-does-anyone-knows/5614 "2021-03-30T12:37:35Z")

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What is the right antenna type I can use for the Limesdr device? Does anyone knows ? 2.5 dbi antenna I looked but it is so weak . I found 15 dbm wireless powerful antenna but I am undecided.

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## [limeSDR USB, srsLTE, open5gs with 100 PRB MIMO](https://discourse.myriadrf.org/t/limesdr-usb-srslte-open5gs-with-100-prb-mimo/6998)

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**Author:** [@theboel](https://discourse.myriadrf.org/u/theboel)\
**Replies:** 1\
**Last updated:** [6 March 2021 15:49 UTC](https://discourse.myriadrf.org/t/limesdr-usb-srslte-open5gs-with-100-prb-mimo/6998 "2021-03-06T15:49:15Z")

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Hi All, I try to work with a combination of limeSDR USB, srsLTE, open5gs as far I do I can work MIMO with TM 4 PRB 50 without any problem but when I try PRB 100 I got a latency indication : LLLLLLLLLLLLLLLLLLLLLLLLLLL…

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## [Lime SDR Mini srsLTE enb Errorr](https://discourse.myriadrf.org/t/lime-sdr-mini-srslte-enb-errorr/6981)

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**Author:** [@uraxii](https://discourse.myriadrf.org/u/uraxii)\
**Replies:** 0\
**Last updated:** [26 February 2021 19:51 UTC](https://discourse.myriadrf.org/t/lime-sdr-mini-srslte-enb-errorr/6981 "2021-02-26T19:51:44Z")

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Hello! I am trying to setup srsLTE with my Lime SDR mini, but I am running into a couple of issues. When I attempt to run the srsenb I receive the error: “\[ERROR\] SetFrequencyCGEN(184.32 MHz) - cannot deliver request…

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## [How Can I Solve Limesdr Clock Problem with osmocom?](https://discourse.myriadrf.org/t/how-can-i-solve-limesdr-clock-problem-with-osmocom/6982)

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**Author:** [@muratoznn](https://discourse.myriadrf.org/u/muratoznn)\
**Replies:** 0\
**Last updated:** [26 February 2021 22:32 UTC](https://discourse.myriadrf.org/t/how-can-i-solve-limesdr-clock-problem-with-osmocom/6982 "2021-02-26T22:32:02Z")

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I have clock problem with osmocom and limesdr mini . How Can I solve this problem ? My gateway 1.30 Ubuntu 20.04 lts LimeSuite LMS7002 software version 20.10.0-ga45e482d root@murat-VivoBook-14-ASUS-Laptop-X407MA-X407…

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## [srsLTE and LimeSDR Mini](https://discourse.myriadrf.org/t/srslte-and-limesdr-mini/6688)

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**Author:** [@Wisaam](https://discourse.myriadrf.org/u/Wisaam)\
**Replies:** 23\
**Last updated:** [28 December 2020 11:10 UTC](https://discourse.myriadrf.org/t/srslte-and-limesdr-mini/6688 "2020-12-28T11:10:20Z")

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Great news! I was finally able to get srsLTE up and running without any errors (calibration of Tx/Rx, clock, etc.). For reference, I followed the following the below post mostly, but am using 19.12 for srsLTE instead of…

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## [LimeSDR Mini and SDR Angel for LTE](https://discourse.myriadrf.org/t/limesdr-mini-and-sdr-angel-for-lte/6310)

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**Author:** [@Wisaam](https://discourse.myriadrf.org/u/Wisaam)\
**Replies:** 1\
**Last updated:** [25 November 2020 05:17 UTC](https://discourse.myriadrf.org/t/limesdr-mini-and-sdr-angel-for-lte/6310 "2020-11-25T05:17:37Z")

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Hello, Has anyone been able to detect LTE signals using SDRangel, and what configurations allowed you to see them?

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## [LIMESDR on SRSLTE : unable to find network on LTE device](https://discourse.myriadrf.org/t/limesdr-on-srslte-unable-to-find-network-on-lte-device/5182)

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**Author:** [@twabi](https://discourse.myriadrf.org/u/twabi)\
**Replies:** 7\
**Last updated:** [30 October 2020 20:51 UTC](https://discourse.myriadrf.org/t/limesdr-on-srslte-unable-to-find-network-on-lte-device/5182 "2020-10-30T20:51:53Z")

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hi guys, I was following a post (https://cyberloginit.com/2018/05/03/build-a-lte-network-with-srslte-and-program-your-own-usim-card.html) on setting up an LTE network with the lime sdr over srsLTE interface. Strangely,…

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## [Successful srsLTE connection between LimeNET-micro and LimeSDR-mini on same machine](https://discourse.myriadrf.org/t/successful-srslte-connection-between-limenet-micro-and-limesdr-mini-on-same-machine/6344)

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**Author:** [@adim](https://discourse.myriadrf.org/u/adim)\
**Replies:** 12\
**Last updated:** [14 October 2020 16:17 UTC](https://discourse.myriadrf.org/t/successful-srslte-connection-between-limenet-micro-and-limesdr-mini-on-same-machine/6344 "2020-10-14T16:17:04Z")

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Hello, I managed to achieve a successful cell attach and registration between a LimeSDR-mini acting as eNB and a LimeNET-micro acting as UE, both running on the same computer. Getting srsLTE to work was not easy, it se…

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## [Limesdr Mini Srslte Driver Problem?](https://discourse.myriadrf.org/t/limesdr-mini-srslte-driver-problem/6564)

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**Author:** [@muratoznn](https://discourse.myriadrf.org/u/muratoznn)\
**Replies:** 0\
**Last updated:** [24 September 2020 16:13 UTC](https://discourse.myriadrf.org/t/limesdr-mini-srslte-driver-problem/6564 "2020-09-24T16:13:28Z")

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I am trying to connect my phone with srslte but it is not connecting and it is closing mobile phones 4G Lte connection . How I can connect my phone to srslte ? How Can I Fix This Problem ? I set up mnc mcc about my ph…

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## [Bypass a5/3](https://discourse.myriadrf.org/t/bypass-a5-3/6406)

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**Author:** [@bastienbaranoff](https://discourse.myriadrf.org/u/bastienbaranoff)\
**Replies:** 0\
**Last updated:** [6 August 2020 16:24 UTC](https://discourse.myriadrf.org/t/bypass-a5-3/6406 "2020-08-06T16:24:20Z")

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https://youtu.be/XSN9oDS5TqI with lime and Motorola

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## [Please Help How Can Fix this problem for limesdr mini ? Tx Dropped packets by HW!](https://discourse.myriadrf.org/t/please-help-how-can-fix-this-problem-for-limesdr-mini-tx-dropped-packets-by-hw/6324)

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**Author:** [@muratoznn](https://discourse.myriadrf.org/u/muratoznn)\
**Replies:** 0\
**Last updated:** [19 July 2020 23:27 UTC](https://discourse.myriadrf.org/t/please-help-how-can-fix-this-problem-for-limesdr-mini-tx-dropped-packets-by-hw/6324 "2020-07-19T23:27:28Z")

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sudo osmo-trx-lms -C osmo-trx-limesdr.cfg Info: SSE3 support compiled in and supported by CPU Info: SSE4.1 support compiled in and supported by CPU Mon Jul 20 02:01:38 2020 DLGLOBAL \<0008\> telnet\_interface.c:104 Avail…

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## [CDMA or IS95 stack](https://discourse.myriadrf.org/t/cdma-or-is95-stack/6254)

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**Author:** [@ok1zu](https://discourse.myriadrf.org/u/ok1zu)\
**Replies:** 4\
**Last updated:** [16 July 2020 13:40 UTC](https://discourse.myriadrf.org/t/cdma-or-is95-stack/6254 "2020-07-16T13:40:19Z")

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Does anyone know of the existence of any (ideally FOSS) stack for IS95 or CDMA 2000 (or 1xEV-DO) networks? I mean the 3GPP2 standard. I want to connect with a Cellient MPN200 modem in the 420 MHz band against it. The CDM…

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## [LimeSuite GUI on Linux](https://discourse.myriadrf.org/t/limesuite-gui-on-linux/6297)

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**Author:** [@Wisaam](https://discourse.myriadrf.org/u/Wisaam)\
**Replies:** 3\
**Last updated:** [16 July 2020 06:26 UTC](https://discourse.myriadrf.org/t/limesuite-gui-on-linux/6297 "2020-07-16T06:26:03Z")

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Hello everyone, I’ve been trying to work on the LimeSDR mini and have gotten it up and running with srsLTE using some tutorials. The problem I’m encountering is that when I run srsenb, I get expected output except for …

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## [Extremely weak LTE signal](https://discourse.myriadrf.org/t/extremely-weak-lte-signal/6261)

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**Author:** [@davmar88](https://discourse.myriadrf.org/u/davmar88)\
**Replies:** 1\
**Last updated:** [2 July 2020 10:14 UTC](https://discourse.myriadrf.org/t/extremely-weak-lte-signal/6261 "2020-07-02T10:14:04Z")

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Good day We have build a small LTE base station using Openairinterface5G. For hardware, we are using a bladeRF x40, 2x omni directional antennas (7 dBi peak gain), and 2x 10m coax cables connecting between the antennas…

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