Objective

Quartz routers series use a combination of router and cellular module firmware to function. Router firmware can be updated by following the application note “How to upgrade a Siretta Router Firmware Application Note”

So far, updating router module firmware has been a complex one that involves opening of router casing, removing PCB assembly, detaching the cellular module, plugging the module into a USB adapter then update firmware using a tool called QFLASH. A lengthy procedure requiring Siretta Technical support.

This application note allows users to update the cellular module inside Siretta Quartz series routers using efficient and non-invasive procedure without disassembling the unit.

Solution

DFOTA – Stands for Delta Firmware Update Over-The-Air. DFOTA allows users to update router module firmware using cellular network. Router is set to AT over IP mode where AT command AT+QFOTADL is issued to initiate the update process and point to a location where delta firmware is stored.
Delta firmware file can be either stored in a remote HTTPS/HTTP server or FTP server, this application note covers the procedure were delta firmware file stored in HTTPS server.

Requirements

• Siretta Quartz Series Router (for this applicationQUARTZ-ONYX-GW42-5G (GL) was used)
• Windows 11 Laptop with Tera Term Version 4.96 or above (Tera Term can be downloaded from the following link – Tera Term Link ).
• URL where Delta Firmware file is stored.
• AT Command over Internet Protocol Router Guide

Demonstration of Solution

1. Follow router quick start guide for initial router settings.
2. Wait for the router to connect to the cellular network.
3. Confirm that router has received IP addresses (See below).

4. Navigate to a Basic Network in router GUI.
5. Select Cellular tab.
6. Uncheck Modem Enable checkbox

7. After unchecking Enable Modem check box, page will look like below.

8. Click Save button.
9. Wait for about 3 seconds.
10. You will receive page below.

11. Click Reboot Now.
12. You will receive reboot prompt below.

11. Click Reboot Now.
12. You will receive reboot prompt below.

15. Open Overview page (see below).

16. Navigate to a Basic Network in router GUI.
17. Select Cellular tab.
18. Confirm Modem Enable checkbox is unchecked (See below).

19. Open AT Command over Internet Protocol Router Guide
20. Follow steps 1 to33 of the AT Command over Internet Protocol Router Guide.

Note: Router IP address in AT Command over Internet Protocol Router Guide is 172.168.1.1 which is different from the router IP address used in this guide (192.168.1.1). Replace 172.168.1.1 with 192.168.1.1 and continue with the rest of the application note.

21. You will be presented with Tera Term window.

22. You have now established connection with the cellular module inside the router.
23. Issue the following set of AT commands to query modem and initiate DFOTA process.
24. Issue AT+CREG? – to Check the network registration.

25. Receive following when registered to a local network: +CREG: 0,1.
26. Receive following when registered to a roaming network: +CREG: 0,5.
27. Issue AT+CGPADDR=1 to Check if the context is activated.

28. Receive IP address when context is activated: +CGPADDR: 1,”10.188.232.13″

Note: If no IP address is returned issue AT+CGACT=1,1 to activate context or contact support@siretta.com. Your returned IP address may be different from the above depending on your SIM card provider.

29. Issue AT+QGMR to receive full current firmware version.

30. Full current firmware version is RM500QAEAAR13A03M4G_01.201.01.201.

31. Obtain link from Siretta representative for Delta Firmware package location.

32. For this guide the following link was used http://portal.siretta.com/uploads/DELTA/sign_to_RM500QAEAAR13A03M4G_01.203.01.203_118669193e.zip.

33.Issue the following at command to initiate firmware update over Air.

AT+QFOTADL=”http://portal.siretta.com/uploads/DELTA/sign_to_RM500QAEAAR13A03M4G_01.203.01.203_118669193e.zip”

34.You will receive OK, when successful.

35. Followed by the indication of the status of upgrade +QIND.

Note: 0 indicates firmware was successfully loaded to the module flash storage and upgrade was successful. If you receive any number other than 0 contact support@siretta.com.

You may only receive +QIND: “FOTA”,”HTTPSSTART”, if you see this wait for about 3-5 minutes, as firmware update is taking place in the background then power cycle the router.

36.After receiving no error an automatic firmware update will commence, and you will be unable to send any AT command to the module.

37. After receiving QIND: “FOTA”,”END”,0 the firmware update is successful.

38. Power cycle router.

39. Re-open terminal and query module current firmware by using the following at command AT+QGMR

40. Full current firmware version is RM500QAEAAR13A03M4G_01.203.01.203

41. You have successfully updated module firmware from RM500QAEAAR13A03M4G_01.201.01.201 to RM500QAEAAR13A03M4G_01.203.01.203 using DFOTA.

Note: During firmware update make sure the SIM card has enough cellular data to avoid connection loss during uploading firmware package from the server to the module.

42. Navigate to a Basic Network in a router GUI.

43. Select Cellular tab.

44. Check Modem Enable checkbox.

45. Reboot the router.

46. Wait for the reboot cycle to complete.

47. Router is ready for use with the latest firmware.

If you encountered any problem during firmware update or following this guide, please contact support@siretta.com

Additional Reading

The post Updating QUARTZ Router Module Firmware Over-The-Air appeared first on Siretta Limited.

The Client

Uber Boat by Thames Clippers operate a fleet of passenger vessels along the River Thames, providing a unique and popular commuter and leisure service through central London.

On board, customers are offered a range of services with the option to make contactless payments for refreshments, merchandise and ticketing. However, the team had been experiencing intermittent cellular connectivity issues during journeys, which disrupted payment processing.

These issues were affecting both operational efficiency and the onboard customer experience, especially during busy periods.

The Challenge

Despite good overall mobile coverage in London, the Thames presents unique challenges.

Cellular Signal black spots were occurring at specific points along the route, particularly between high riverbank walls and infrastructure-heavy areas like tunnels and bridges.

These dropouts were time-dependent, with disruptions more frequent during peak travel hours. Contactless payments were failing intermittently, frustrating both crew and customers, leading to negative feedback and potential loss of revenue. The underlying issue wasn’t a complete lack of signal—it was inconsistent and unreliable coverage, which standard consumer devices could not fully detect or diagnose.

The Siretta Solution:

To help investigate and mitigate these issues, Siretta recommended deploying its SENTRY cellular signal and network performance analyser. The SENTRY was installed on the newly launched Mars Clipper – A Hunt Class Mk IV Catamaran.

One of the UK’s first hybrid high-speed passenger ferries with a capacity of 230 passengers and top speed of 32 knots, operating continuously 7 days a week collecting live network data during all journeys.

This included:

• Cell tower handovers
• Signal strength and quality
• RSRP/RSRQ/SINR)
• Network technology (4G/3G fallback)
• SIM/network performance by operator.

This real-time monitoring approach offered granular insight into what the crew had previously experienced only as “unexplained dropouts”.

Key Findings

After several weeks of live monitoring, the SENTRY provided valuable and actionable data: Consistent dropout zones were identified and mapped, clearly highlighting cellular “dead spots” that aligned with staff-reported issues.

Tidal conditions were confirmed as a key influence: At low tide, the vessels sit lower on the water, reducing the line-of-sight to nearby cellular towers due to high embankments.

This significantly impacts signal quality and increases packet loss during those conditions. Operator performance varied by location, with EE and VMO2 (Virgin Media O2) offering the most reliable service across the route.

Possible Recommended Actions & Optimisation

With these insights, Siretta worked with Uber Boat by Thames Clippers to propose a multi-pronged improvement strategy:

Raise the height of onboard antennas to improve signal reception during low tide, ensuring line-of-sight to cell towers remains above the riverbanks.

Upgrade to dual-SIM routers, with SIMs from both EE and VMO2. This would provide network redundancy and improve overall signal reliability.

Continue SENTRY monitoring post-implementation, to validate improvements and maintain visibility into network changes, such as cell tower reconfiguration.

The post Keeping London Connected appeared first on Siretta Limited.

Objectives

The purpose of this application note is to give a brief background on 5G (NR) wireless communication an explain the reason a SNYPER-5G Graphyte may need a SIM card to give more rounded survey results.

5G NR (New Radio) communication

5G is the fifth-generation wireless cellular technology, developed by 3GPP with faster speeds, higher capacity, lower latency, and increased reliability compared to 4G (LTE) architecture. It is designed to support a wider range of devices and applications, from smartphones to smart cities to driverless cars, generally the Internet of Things (IoT). There are two architectures that Network Operators employ for 5G network cellular communications.

NSA (Non-Stand Alone) and SA (Stand Alone)

• The NSA architecture was devised so that the operators could use the existing 4G (LTE) structure to take advantage of 5G. When a 5G call is made using NSA, the signals use 4G (LTE) to connect to the cells. The LTE cells then convert this to the 5G capable equipment to make use of the low latency and high bandwidth that 5G offers. Basically, 5G NSA is backwards compatible with 4G (LTE)

• The SA architecture (a 5G only infrastructure) was deployed around 2023 for operators to use for 5G capable equipment. This makes full use of 5G capabilities.

Why is it sometimes necessary to use a SIM card when using SNYPER 5G

SNYPER 5G, like all SNYPER Cellular Signal Strength analysers, surveys all the nearby cells without a SIM card and shows which networks are stronger in a specific area to allow the user to choose the best SIM card/Network for their cellular real estate.

When running a survey, the SNYPER 5G will show all cells using 5G (SA) and LTE technologies. It is however, incapable of showing 5G NSA communication, as it cannot “see” which 4G (LTE) cell was used to pass on the 5G signal (since network operators use the LTE infrastructure for the initial connection), then communicate with 5G capable equipment.

To overcome this issue, the SNYPER 5G should be equipped with a 5G SIM card. The SIM card then decodes which 4G LTE cell was used for 5G communication.

It should be noted that when using a SIM card in SNYPER 5G the results will only show the cells from the network that the SIM card belongs to. To overcome this, it is recommended that a Roaming SIM card is used, although the results will be limited to the networks that the Roaming SIM card can connect to.

The post Why Use a SIM Card With The SNYPER-5G appeared first on Siretta Limited.

Today, NTNs are already providing real-world benefits. Hybrid connectivity solutions, such as T-Mobile’s partnership with Starlink, utilise Starlink’s LEO satellites to offer LTE backhaul for text messaging services in rural U.S. areas. Siretta’s SNYPER-5G device plays a crucial role in detecting these networks, providing insights into signal strength, operator details, and network availability. Its LiveSCAN feature allows for real-time troubleshooting of network inefficiencies, making it an essential tool for optimising hybrid NTN deployments.

The Current State of NTNs

NTNs are no longer just a futuristic concept—they are actively solving connectivity challenges today. As previously mentioned, T-Mobile’s collaboration with Starlink is enabling text messaging services in areas that were previously unreachable by traditional cell towers. This service is expected to expand to voice and data capabilities by mid-2025, showcasing the practical applications of NTNs in addressing immediate connectivity issues.

Beyond text messaging, NTN supports low-power IoT applications such as agricultural monitoring, disaster response systems, and industrial sensors. These use cases demonstrate the versatility of NTNs and their capacity to address diverse needs across various industries. Meanwhile, companies like SpaceX and OneWeb are deploying additional satellites to enhance coverage density and reduce latency, further solidifying the role of NTNs within the telecommunications ecosystem.

Expanding NTN Deployments: UK and Europe

Recent developments in the UK and Europe highlight the rapid evolution and adoption of NTNs:

· Vodafone UK’s Direct-to-Smartphone Satellite Service: Vodafone, in partnership with AST SpaceMobile, has achieved the world’s first satellite-enabled video call using a standard 4G/5G smartphone from a remote area in Wales. This demonstration showed that users can make video calls, browse the internet, and use messaging services in areas previously lacking mobile broadband. The service, which requires no specialist hardware, seamlessly switches between terrestrial and satellite networks, with commercial rollout planned in the UK and Europe from late 2025 into 2026. This positions Vodafone as a leader in providing universal digital connectivity and closing rural coverage gaps.

· Deutsche Telekom, Skylo, and Qualcomm’s SMS-Over-Satellite in Europe: Deutsche Telekom, alongside Skylo and Qualcomm, has completed Europe’s first operator-native trial of SMS messaging over GEO satellite using standard smartphones. Conducted on Deutsche Telekom’s Cosmote network in Greece, this trial utilised the Qualcomm Snapdragon X80 5G Modem-RF System and 3GPP Release 17 specifications. This approach enables customers in areas without terrestrial coverage to send and receive text messages globally on their regular devices, supporting emergency communications and providing ubiquitous coverage without requiring special apps or hardware.

Challenges Facing NTNs

Despite their potential, NTNs face unique challenges due to their operational environments. Latency remains a significant concern for GEO satellites positioned 36,000 km above Earth. The time required for signals to travel between satellites and ground stations introduces delays that necessitate adaptive protocols for seamless communication.

Environmental factors also play a critical role in NTN performance. Rain fade (Rain fade refers to the attenuation of satellite signals caused by heavy rainfall, which can disrupt communications and requires careful testing and mitigation), ionospheric disturbances and solar activity can degrade signals, disrupting communication links. These issues necessitate rigorous testing under simulated conditions to ensure reliability across various scenarios.

Hybrid architectures introduce an additional layer of complexity. Modern NTNs frequently combine satellites with terrestrial systems and HAPS platforms, creating challenges related to seamless interoperability. Ensuring that all components function together effectively is crucial for delivering consistent results.

Near-Term Developments: What’s Next for NTNs?

The next 12 months will see significant advancements in the NTN landscape. Companies such as SpaceX and OneWeb are continuing to deploy satellites to enhance coverage density and reduce latency. In addition to consumer-focused services, such as rural broadband and emergency communications through satellite-enabled Wireless Emergency Alerts (WEAs), IoT applications will continue to grow. NTNs will support low-power connectivity solutions for remote sensors in agriculture, industrial monitoring systems, and disaster resilience efforts.

Evolving with Standards: Siretta’s Role in NTN

As non-terrestrial networks (NTN) evolve from concept to deployment, Siretta is ensuring its technology stays in step. The SNYPER platform is designed to adapt with advancing standards, allowing users to keep pace with the latest connectivity developments.

While the current SNYPER-5G model focuses on terrestrial network analysis and does not yet support NTN detection, an IoTS version with this functionality is now released.

The SNYPER-5G already provides robust insight into terrestrial network performance, including detection of Starlink LTE backhaul links. Its modular hardware and firmware architecture make it ideally positioned to incorporate hybrid terrestrial and non-terrestrial features in future revisions.

Siretta remains committed to supporting advanced IoT applications that rely on long-range, low-power communication—key elements in the NTN use case space.

Preparing for NTN Testing

Effective NTN deployment will depend on accurate, real-world testing across a wide range of use cases. While current SNYPER models are optimised for terrestrial environments, future products will be dedicated to NTN analysis functionality.

Conclusion

Non-terrestrial networks are shaping the next wave of global connectivity by extending coverage into previously unreachable areas and unlocking new use cases.

Although today’s SNYPER-5G is focused on terrestrial networks, an NTN-capable IoTs version is now available —targeted at sectors such as agriculture, logistics, and emergency response.

As NTN services from providers like T-Mobile, Skylo, Starlink, Vodafone, Deutsche Telekom, and OneWeb become more widely available, Siretta is developing the tools needed to stay ahead of the curve. The SNYPER IoTs variant will offer customers a window into the evolving NTN space—providing clarity today and capability for tomorrow.

The post Testing and Validation: Driving Reliability in Non-Terrestrial Networks (NTNs) appeared first on Siretta Limited.

Team Siretta ready to take on The Big Golf Race – 36 holes, no buggies, one great cause.

Plenty of swings (some better than others) – but every shot helped raise awareness for prostate cancer.

On Monday, 22nd September 2025, four members of Team Siretta took on Prostate Cancer UK’s Big Golf Race at Sherfield Oaks Golf Club — completing 36 holes of golf in a single day, all on foot and without the help of buggies.

The challenge saw the team cover more than 20 miles, carrying their clubs across both courses and hitting hundreds of shots along the way. There were plenty of good swings, the odd lost ball, and more than a few blisters, but together the team pushed through and completed the marathon of golf.

This effort was all in support of Prostate Cancer UK, a charity dedicated to funding vital research and supporting men affected by prostate cancer. With 1 in 8 men in the UK diagnosed during their lifetime, raising awareness and funds for this cause is something we are very proud to have contributed to.

A huge thank you goes to everyone who donated and supported us — your encouragement made a real difference on the day

We’re proud not only of the products we deliver but also of the way our team comes together to support important causes. The Big Golf Race was tough, but worthwhile — and we’re already wondering what challenge might be next.

The post 36 Holes, 20 Miles, One Cause: The Big Golf Race Completed appeared first on Siretta Limited.

Siretta was proud to support our new Japanese distribution partner, Midoriya Electric, at COMNEXT Japan.

Together, we showcased the SNYPER-5G, our advanced cellular network analyser, to visitors from across the region.

The event provided an excellent platform to demonstrate how the SNYPER-5G can help businesses survey, identify, and optimise mobile network connectivity — supporting the rollout of advanced 5G, LTE, and IoT solutions across Japan.

We look forward to building on this exciting partnership and expanding Siretta’s presence in the Japanese market.

The post Siretta Supports New Japanese Partner at COMNEXT Japan appeared first on Siretta Limited.

Most engineers understand how to impedance match an antenna to 50 ohms. But what actually makes an antenna radiate? And why do some antennas radiate efficiently while others barely get the job done?

In this blog, we explore the physics behind RF radiation, and how radiation resistance, antenna geometry, and loss mechanisms determine performance in Siretta’s industrial antenna range.

What Makes an Antenna Radiate?

At the most fundamental level, an antenna radiates because of accelerated charges. When RF current (oscillating current) flows through a conductor, it produces time-varying electric and magnetic fields. According to Maxwell’s equations, these fields generate self-sustaining electromagnetic (EM) waves that detach from the antenna and propagate through space.

This process isn’t unique to antennas. Any conductor carrying high-frequency current will radiate to some extent — this is why EMI (electromagnetic interference) exists. What makes an antenna special is its ability to radiate efficiently at the desired frequencies, and in a controlled direction.

Impedance Matching vs Radiation Efficiency

Impedance matching an antenna to 50 Ω ensures that as much RF power as possible is delivered from the source into the antenna. But matching does not guarantee efficient radiation.

If the antenna has high losses (resistive heating, ground loss, etc.) or low radiation resistance, much of that delivered power will be wasted.

An antenna can be perfectly impedance matched and still make a terrible EM radiator.

Figure 1: Matching (VSWR / Return Loss) tells you how much power enters the antenna. Radiation Efficiency tells you how much of that power is radiated. Both must be considered when assessing antenna performance.

Understanding Radiation Resistance

Radiation resistance is the portion of an antenna’s input resistance that actually radiates EM waves, not heat.

Where:

R_rad: Radiation resistance
R_loss: Loss resistance (ohmic, dielectric, etc.)
A high-efficiency antenna has a high radiation resistance and low loss resistance. For example, a quarter-wave monopole may have R_rad≈36Ω, while ground losses might add 20Ω . This results in ~64% efficiency.

Why Small Antennas Are Inefficient

As antennas become electrically small (much smaller than a wavelength), their radiation resistance drops dramatically, while losses remain relatively constant.
Small loop antenna: R_rad ~ 0.1 Ω
Loss resistance: 10 Ω or more
Efficiency: Less than 1%

This is a well-known limitation captured by the Chu-Harrington limit, which states that small antennas can’t be both efficient and broadband.

Common Loss Mechanisms in Antennas

1. Ohmic losses — due to resistive heating in conductors
2. Skin effect — RF current flows on surface, increasing effective resistance
3. Dielectric losses — lossy PCB substrates or nearby materials
4. Ground losses — monopoles over poor ground conductivity

Especially in compact or embedded antennas, these losses can dominate.

How Siretta Designs for Radiation Efficiency

Siretta’s antennas are engineered to maximize radiation efficiency without compromising on size or ruggedness. This includes:

• Optimizing geometry for resonant modes
• Carefully selecting materials with low loss tangent
• Integrating ground planes and matching networks in PCB antennas

Whether it’s a rugged LTE whip antenna, a GPS patch, or a multi-element puck, Siretta ensures that your RF power gets put to work — radiating effectively.

Figure 2: Siretta antenna undergoing radiation pattern and efficiency testing in a calibrated anechoic chamber.

Impedance matching is important, but it’s not the whole story. To design truly effective wireless systems, you need antennas that efficiently convert input power into radiated EM waves.

Siretta’s antennas are built with this physics in mind, ensuring performance across LTE, 5G, GNSS, LoRa, Wi-Fi, and more.

Figure 3: Example of radiation efficiency (%) across frequency from a Siretta antenna datasheet. Efficient radiation performance is maintained across key operating bands.

FAQ

What is radiation resistance in an antenna? It’s the part of input resistance responsible for radiating power into free space.

Can an antenna be impedance matched but still inefficient? Yes. Impedance matching means no reflected power if done perfectly, but that power may be lost as heat rather than radiated.

Why are small antennas less efficient? They have low radiation resistance and higher relative losses.

What causes antenna loss? Ohmic heating, poor dielectrics, skin effect, and ground loss.

Want help selecting a high-efficiency antenna for your IoT or industrial project?

Contact Siretta’s sales team or explore our antenna portfolio today.

The post How Do Antennas Actually Radiate? The Physics Behind Efficient RF Design appeared first on Siretta Limited.

Objective

This document is designed for customers who are looking for a solution of remotely accessing their router without using fixed IP SIM card or VPN services.

Solution

Requirements

The following products are used to create this document:

• QUARTZ-W22-UMTS (EU) + ACCESSORIES
• PC connected to a local area network.
• SIM card
• Server details for Domain Name System (DNS).

Configure the Router for DDNS

1. Insert SIM card into the Siretta Industrial Quartz Router (Example below uses a QUARTZ-W22-UMTS (EU)).
2. Enter the APN details as provided by the SIM card provider (You can follow the router Quick Start Guide for more assistance with this).
3. Once the Router is connected to the mobile network you will see the connected status on the router’s web interface (GUI) as seen below.

4. Navigate to ‘Basic Network’

5. Select DDNS’ tab on the router webpage “GUI”, where you will be presented with the screenshot below.

6. Siretta Routers support two Dynamic DNS services at the same time (DNS1 and DNS2).

7. Click drop down list on the service of the DNS1 you will be presented with the screenshot below showing all the supported DNS service providers including a custom URL.

8. Select your DDNS service provider and fill out the registration details.

NOTE: If you do not have a DDNS service provider select “No-IP.com” from the DDNS provider list and follow the steps below to register a DDSN account.

Register a Free Dynamic DNS account with No-IP
1. Open the following link https://www.noip.com/
2. Select ‘Free Dynamic DNS’

3. Create an account with your username, password and domain name which will be associated with the current dynamic (non-fixed IP SIM card) IP address of the SIM card inside the Siretta Router.

4. Enter username, password and hostname to the Siretta Router DDNS setup and click save.

5. The page will update to show the last IP address registered to the SIM card and a message indicating that the update was successful with the time and date as shown below.

NOTE: This example uses the account settings for ‘omari.hussein@siretta.co.uk’ and the last registered address was ‘10.135.240.120’

6. The domain name created for this example is “sirettatest.ddns.net” which is associated with the current IP address of 10.135.240.120 as seen below on the DDNS server dashboard.

7. You can tick the ‘Force next update’ tickbox to manually update the IP address otherwise the IP address will automatically update to the time specified in the ‘Auto refresh every’ field.

8. The setup for Dynamic DNS is complete

9. You can now access the Router over the internet using the following link “sirettatest.ddns.net”

10. Enter router username and password then click OK.

11. The router is now accessible over the internet using the following link “sirettatest.ddns.net” offered by the Dynamic DNS service.

12. When the IP address of the Router changes, the new IP address is reported to the DNS server and the update history can be seen on the server dashboard below.

13. The router is now accessible over the internet using the following link “sirettatest.ddns.net” offered by the Dynamic DNS service.

14. When the IP address of the Router changes, the new IP address is reported to the DNS server and the update history can be seen on the server dashboard below.

NOTE: For the settings used in the above example, you should be able to access the router from any external network using the link “sirettatest.ddns.net“. An important point to be aware of is that the SIM Internet Service Provider (ISP) may have blocked remote access using a carrier-grade NAT (CGN) or public access firewall for security purposes. You will need to speak to your SIM provider to resolve these issues.

Siretta highly recommends the use of a private APN provided by an industrial SIM card provider with access to a fixed IP address. 

The full range of Siretta Industrial Router products can be found from the following link:

https://www.siretta.com/router-selector-tool/

Any queries please contact support@siretta.com

Additional Reading

The post Setting Dynamic DNS (DDNS) On A Siretta Router appeared first on Siretta Limited.

At Siretta, our expertise in solutions in Industrial IoT leveraging cellular technology has been at the forefront of our mission. We believe that by working with a global leader like Siemens, we can bring value for connectivity solutions that will shift the way businesses and industries operate.
Peter Rees Product Manager for High Accuracy Metering within Siemens comments:

“Siretta were both proactive and responsive to implement the approval enhancements we required for our strategic project. This provided us with a cost effective solution”

Siemens selected the QUARTZ-GOLD-LTE product with optional RS485 interface however, being installed in substations, required the EMC approvals to meet Heavy Industrial Requirements. Siretta worked with their test and approval partners to approve the product to meet EN61000-6-2 within the requirements of the client timescales.

With RS485 serial connectivity and 2 ethernet ports the QUARTZ-GOLD-LTE is not only small in size but also extremely versatile and powerful.

The cellular router project with Siemens is a testament to our shared vision of connectivity that empowers industries and businesses. We are excited to embark on this journey and looking forward in supporting Siemens in further projects.

To find out more about Siretta’s Industrial Router Range, click here.

The post Siretta Partners with Siemens for Metering Solutions appeared first on Siretta Limited.

With a Siretta SNYPER, you can quickly and easily measure cellular signal strength, quality, and other network parameters, helping you to identify and troubleshoot issues as they arise.
Based on the successful Graphyte platform.

The SNYPER 5G Graphyte and IoT Graphyte has vastly improved processor, graphics, memory, display and many more!

To find out more about the SNYPER-5G Graphyte click here and here for the IoT.

The post We are proud to announce our highly successful SNYPER-5G Graphyte and IoT variants. appeared first on Siretta Limited.