Aeromarine SRT

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Aeromarine SRT

Aeromarine SRT is a manufacturer of a range of professional equipment for GMDSS radio surveys. Expert in Cospas-Sarsat solutions. PCB engineering and RF design.

OEM production. Management company for Musson Marine Ltd.

15/10/2026

GMDSS is only one of the systems working on a ship’s bridge.
Our article on maritime radiocommunication explains what each of them does, how their roles differ, and why a successful test of one says little about the others, with examples of what survey checks do and don’t show.
It’s for anyone getting started with ship radio equipment, whether in radio surveying, on the bridge or in a technical role.

Read the updated version on our blog: https://gmdsstesters.com/radio-survey/gmdss-radio/maritime-radiocommunication-systems-gmdss-and-beyond.html

08/10/2026

A closer look at what’s new in GMDSS Multi Software 6.4.6.
This update helps radio surveyors spend less time on repetitive tasks and reporting, extract more detail from signal measurements, and run the full software from a smartphone or tablet.

Here’s a quick breakdown ↓

01/10/2026

Why use dBm for power measurements when watts are often more convenient?
For many radio surveyors, watts are the more familiar and practical unit when checking transmitter power. Power limits and rated output values for marine radio equipment are usually specified in watts. So if a radio is rated at 25 W, seeing the measured result directly in watts makes comparison with the specification straightforward, with no conversion needed.

The reason dBm is still useful is that it has a practical role in RF measurements. Watts express power on a linear scale. dBm expresses an absolute power level on a logarithmic scale, referenced to 1 mW. It is the same quantity in a different form: 1 W equals 30 dBm, and 25 W is approximately 44 dBm.

dBm is especially convenient when you look at forward and reflected power together. In a healthy antenna system, reflected power is typically 100 to 1,000 times lower than forward power. In watts, that means values of very different magnitude, for example 25 W and 0.025 W. In dBm, the same values are 44 dBm and 14 dBm, and the difference between them is simply 20 to 30 dB (a power ratio of 100 is 20 dB, and a ratio of 1,000 is 30 dB).

But that does not mean dBm is always the most convenient way to present a result. That is why we make both units available:

🔸 On the MRTS-7M, the power display can be switched between watts and dBm.
🔸 On our Pro-series testers, both units are displayed on the screen at the same time (see the image).
🔸 In GMDSS Multi Software, which works with testers of different generations, power values are shown in both watts and dBm, on screen and in reports.

🔄 And in the next software version, we are adding a W ↔ dBm converter, so you can quickly convert between the two whenever needed.

Watts are handy for checking a result against the specification, dBm for RF analysis. Use whichever fits your task. ⚡

24/09/2026

How do you test a Tron 60AIS EPIRB with the MRTS-7M GMDSS Multi Tester? In this short video, our technical specialist walks you through the process, from setting up the tester to saving the results to its memory.

Watch the walkthrough 👇

15/09/2026

A quick, friendly reminder: keep your software updated 🔧
We know surveys keep you busy, and software updates can easily slip down your priority list. But taking a few minutes to install the latest version can make a real difference.

Every new release includes fixes and improvements — many of them based on issues reported by our users. Recently, we noticed that some problems reaching our support team had already been resolved in earlier updates.

We understand that it isn’t always easy to see what has changed without checking the release notes. That’s why, starting with this release, every update will include clear release notes explaining what’s new and how it can make your day-to-day work easier.

And good news — we’ve just released a fresh update! The current version is now 6️⃣.4️⃣.6️⃣. If you haven't updated recently, now is a great time to catch up — you may find that an issue you've been experiencing has already been fixed.

10/09/2026

At SMM Hamburg, we had a chance to show what our approach to GMDSS testing looks like today. Now that the exhibition is over, here's where we're taking it next.

For us, professional radio testing has never been just about the instrument itself.

The measurement is only one part of the survey process. There is also the work around it: checking results against applicable requirements, organising survey data, preparing reports, keeping vessel and equipment history, and planning what comes next.

Over the past year, we've been gradually bringing more of that process into GMDSS Multi Software.

Earlier updates introduced a more structured way to enter and organise survey data, along with dynamic reports, survey history and automatic comparison of measurements with applicable reference limits.

Now we're taking that further.

We're developing GMDSS Multi Software into a more complete working environment for the radio survey process — connecting measurements, compliance checks, survey records, reporting, documentation and planning in one workflow.

In other words, we're moving toward a workflow where the tester and GMDSS Multi Software work together to:

MEASURE → ANALYSE → REPORT → TRACK → PLAN

Hardware stays at the core. Reliable measurements and meaningful diagnostic data remain essential.

But the goal is to make sure the information collected during a survey doesn't remain an isolated result. It should stay connected to the vessel, the equipment and the survey history — and remain useful all the way through reporting and into the next visit.

👉 This fall, we'll continue rolling out updates to GMDSS Multi Software — with more of this workflow coming together step by step.

04/09/2026

Four days, one booth, and more coffee than usual. Thanks to everyone who stopped by, asked questions, and made it worth the caffeine.
Here's how SMM went, from our side 👇

01/09/2026

Three takeaways from our first day at SMM:
— VDES testing is already on the wish list.
— Some approaches to designing GMDSS test equipment are short-lived. Others stand the test of time. The value of solutions designed to cover the full scope of GMDSS testing becomes especially clear in practice.
— Why did we bring so few branded keychains? 😄

We’re looking forward to the days ahead — and even more to seeing you at our stand 👋

Hall B6 | Stand 521

21/08/2026

In May 2026, IMO adopted amendments to SOLAS Chapters IV and V introducing VDES as an alternative to AIS. The Committee also adopted revised Performance Standards for shipborne VDES. The new regulations are expected to enter into force on 1 January 2028.

But before VDES becomes part of everyday onboard operations, there is another practical question to solve:

How will it be tested?

That answer is now taking shape.

IEC 63514, the emerging requirements and test standard for shipborne VDES, has reached its third Committee Draft (3CD), with publication as an International Standard expected in 2027.

That gives the industry an important window: the technical basis for VDES testing is becoming clear, but the standard is not yet final.

We're using that time now.

Our engineering team is already aligning the VDES testing architecture for the MRTS-7 Pro with the ASM, VDE-TER and VDE-SAT requirements defined in the current IEC 63514 draft.

The goal is not simply to add another testing capability. It's to make extending today's established AIS testing workflows to VDES as practical as possible for the engineers and surveyors doing the work.

Because the real question isn't whether VDES is coming. It's whether the tools to test it will be ready when it does.

If you're going to SMM Hamburg, 1–4 September, come find us at Stand B6.521. Let's talk about what VDES testing will look like in the real world — and what we're already building toward it.

14/08/2026

48,000+ people are expected at .
We're looking for a very specific kind of visitor.

People who inspect, maintain and test marine radio equipment.

Whether you've visited us before or we haven't met yet, we'd be happy to welcome you at our stand. Come get hands-on with our Pro Series GMDSS testers — and yes, as always, we've got something new to surprise you with.

See you in Hamburg, 1–4 September 🙌
📍 Hall B6 | Stand B6.521

Address

40, Sarajevska
Belgrade
11000

Website

http://gmdsstesters.com/

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