GNSS Connectivity Guide (East Africa)

Field-ready settings for connecting your rover to Muya CORS over cellular or Wi-Fi: NTRIP caster details, regional APN tables, per-brand menu paths, and troubleshooting.

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APN names and carrier settings can change. Confirm with your mobile operator or SIM provider before field work. A data bundle or active mobile data plan is required.

Muya CORS NTRIP connection

Use your portal receiver username and password. Port 2101 is the standard NTRIP port (nearest-base selection); port 2102 is used when you need a fixed single-base stream.

NTRIP LOGIN SETTINGS
Connecting IP: 173.249.45.63
Nearest Reference Station stream 2100

Connect to the nearest available CORS base station for optimal signal quality.

Single Reference Station stream 2020

Connect to a specific CORS base station of your choice.

Virtual Reference Station stream 2030

Connect to a network-averaged Virtual Reference Station for consistent accuracy anywhere within the network.

  1. Open NTRIP / Internet corrections on the receiver or controller.
  2. Enter the Muya CORS host and port from your portal credentials.
  3. Use your Muya CORS username and receiver password.
  4. Select mountpoint RTCM3 (or AUTO / nearest where supported).
  5. Connect and wait for RTK Fixed (typically 1–5 minutes with open sky and an active subscription).

Corporate firewalls must allow outbound TCP on ports 2101 and 2102 to the Muya CORS hostname.

Log in to view per-receiver credentials and download config files

East Africa cellular (GSM/LTE) APN settings

Install a local data SIM in the receiver modem or controller. Enable mobile data and enter the APN for the country you are working in.

Country Carrier APN Username Password Authentication Dial Network mode
Kenya Safaricom safaricom — — None / PAP *99# 4G/LTE preferred
Kenya Airtel Kenya internet — — None / PAP *99# 4G/LTE preferred
Kenya Telkom Kenya internet — — None / PAP *99# 4G/LTE preferred
Uganda MTN Uganda internet — — None / PAP *99# 4G/LTE preferred
Uganda Airtel Uganda internet — — None / PAP *99# 4G/LTE preferred
Tanzania Vodacom Tanzania internet — — None / PAP *99# 4G/LTE preferred
Tanzania Airtel Tanzania internet — — None / PAP *99# 4G/LTE preferred
Tanzania Mix by Yas (Tigo) internet — — None / PAP *99# 4G/LTE preferred
Rwanda MTN Rwanda internet — — None / PAP *99# 4G/LTE preferred
Rwanda Airtel Rwanda internet — — None / PAP *99# 4G/LTE preferred
Ethiopia Ethio Telecom etc.com — — None / PAP *99# 4G/LTE (where available)

Dial number *99# is standard for GSM modems. Leave username and password blank unless your carrier specifies otherwise. Prefer 4G/LTE where coverage allows.

Wi-Fi field setup

Wi-Fi is useful in camp, office, or when sharing internet from a phone hotspot. Ensure the receiver can reach the NTRIP host on TCP 2101/2102.

DHCP (recommended)

Use automatic IP (DHCP) on the receiver Wi-Fi client unless your IT team requires static addressing. Most phone hotspots and office routers assign addresses automatically.

Phone hotspot

Enable mobile data on the phone, turn on the hotspot, connect the GNSS receiver or controller Wi-Fi to the hotspot SSID, then configure NTRIP as usual. Keep the phone charged and within range.

Static IP (advanced)

Use static IP only when required by site IT. Record gateway, subnet mask, and DNS. Misconfigured static IP is a common cause of “connected to Wi-Fi but no NTRIP”.

Office / site Wi-Fi

Ask IT to allow outbound NTRIP (TCP 2101/2102) to the Muya CORS hostname. Guest Wi-Fi often blocks non-web ports.

Receiver brand configuration paths

Menu names vary by firmware. Use the sections below for NTRIP, GSM modem, and Wi-Fi entry points.

Trimble Leica Topcon South Hi-Target ComNav SinoGNSS Stonex Emlid Kolida Unistrong FOIF Other brands

Trimble

Typical field software: Trimble Access, Trimble Siteworks, Trimble Business Center (field export)

NTRIP / network RTK

Trimble Access / Siteworks: Connections → Internet → NTRIP (or Network RTK → NTRIP). Enter host, port, username, password, mountpoint RTCM3.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

Built-in modem or Trimble controller cell settings: enter APN from the East Africa table; enable mobile data before starting NTRIP.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

Leica

Typical field software: Leica Captivate, Leica viva, Leica Zeno

NTRIP / network RTK

Leica Captivate / viva: Config → GNSS → RTK → NTRIP (Internet). Use SmartNet-style client with Muya CORS host and credentials.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

Leica GS modem or controller: Mobile internet → APN settings per local carrier.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

Topcon

Typical field software: Topcon MAGNET Field, Topcon Pocket 3D

NTRIP / network RTK

MAGNET Field: Devices → your receiver → Communication → NTRIP client.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

South

Typical field software: South Surveying / SurvStar GNSS

NTRIP / network RTK

South GNSS software: Device settings → Network → NTRIP / CORS connection.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

Hi-Target

Typical field software: Hi-Survey, Hi-Target field software

NTRIP / network RTK

Hi-Survey: Connect → NTRIP / CORS → add server with Muya CORS host and credentials.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

ComNav

Typical field software: ComNav GNSS / Survey Master

NTRIP / network RTK

ComNav / Survey Master: Network settings → NTRIP client.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

SinoGNSS

Typical field software: SurvX, SinoGNSS field apps

NTRIP / network RTK

SurvX: GNSS settings → Network RTK → NTRIP.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

Stonex

Typical field software: Stonex Cube-A, Stonex field software

NTRIP / network RTK

Stonex Cube-A: Network → NTRIP client configuration.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

Emlid

Typical field software: Emlid Flow, ReachView 3

NTRIP / network RTK

Emlid Flow / ReachView 3: Corrections input → NTRIP → caster URL, port, login, mountpoint.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

Reach RS2+ internal modem or phone tether: configure APN on the modem page or use Wi-Fi/hotspot from the controller device.

Wi-Fi

Emlid receivers often use Wi-Fi to the controller app first; NTRIP is configured in Flow/ReachView while the receiver has internet via Wi-Fi or modem.

Kolida

Typical field software: Kolida Surv, KQ Geo

NTRIP / network RTK

Kolida Surv: Network → NTRIP / CORS settings.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

Unistrong

Typical field software: UniStrong GNSS software

NTRIP / network RTK

UniStrong software: Network → NTRIP client.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

FOIF

Typical field software: FOIF GeoSurv

NTRIP / network RTK

FOIF GeoSurv: Network RTK → NTRIP server settings.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

Other brands

Typical field software: Generic NTRIP-capable GNSS software

NTRIP / network RTK

Open Internet / Network RTK / NTRIP / CORS on your controller and enter the Muya CORS host, port, username, password, and mountpoint RTCM3.

  • Connecting IP:: 173.249.45.63
  • Nearest Reference Station stream: 2100
  • Single Reference Station stream: 2020
  • Mountpoint: RTCM3
GSM / cellular modem

In modem/cellular settings enter APN, dial *99#, authentication None/PAP, prefer 4G/LTE. Use the East Africa APN table for your country.

Wi-Fi

Receiver Wi-Fi client: DHCP on; connect to phone hotspot or site Wi-Fi; then run NTRIP with Muya CORS credentials.

Connectivity troubleshooting

Common issues when working in East Africa with cellular rovers.

SIM not registered or no data

Confirm the SIM is active, registered on the network, and has a data bundle. Test mobile data in a phone first.

Mobile data works but NTRIP fails

Check hostname, port (2100/2020), username, password, and mountpoint. Verify your RTK subscription is active in the client portal.

Wrong APN or authentication

Re-enter the APN from the GSM table for your country and carrier. Retry with blank username/password unless the carrier requires them.

Firewall / port blocked

NTRIP uses TCP port 2100 (nearest) or 2020 (single base). Office Wi-Fi or VPNs may block these ports—use cellular or ask IT to allow the Muya CORS host.

Login rejected

Use the exact receiver username from the portal, not your email login. Reset the receiver password in RTK → Machines if needed.

Wi-Fi connected, no corrections

The hotspot must provide internet with NTRIP ports open. Disable captive portals or “sign in to Wi-Fi” pages that block the rover.

Intermittent dropouts

Weak 4G coverage and SIM roaming cause dropouts. Prefer a local SIM in each country and stand in open sky for faster RTK re-initialization.

Subscription expired

Corrections stop when the licence expires. Renew in Services → RTK corrections before going to the field.