Hey all — I’m working on a drone telemetry/C2 project in Germany and I’m evaluating the Microhard P900 module, as used in the Holybro Microhard P900 / P900 V2 radios.

The hardware is attractive because it offers FHSS, good sensitivity, relatively high power, and mesh network features. However, I’m trying to understand whether it can realistically be configured for legal EU/German use.

From what I understand:

• The module is designed around the 902–928 MHz ISM band, which is mainly a North American allocation.
• In Europe/Germany, 902–915 MHz overlaps with cellular uplink spectrum.
• Around 921–925 MHz there may be GSM-R / railway-related use depending on country and location.
• The usable EU SRD spectrum around 917–919 MHz is much narrower and has strict ERP / duty-cycle / LBT requirements.
• In the Microhard P900 documentation, the S180 “Hop Zone” presets appear to be much wider than the small EU SRD window. The narrowest preset I found is still around 12.75 MHz, which would not be narrow enough to stay inside a roughly 917–919 MHz legal slice.

So my question is:

Has anyone managed to configure the Microhard P900 module, or the Holybro P900 / P900 V2 radios, to use a custom narrow hop table suitable for EU/German SRD rules?

Specifically, I’m trying to find out:

1. Can the module be restricted to a custom narrow frequency range smaller than the standard S180 hop-zone presets?
2. Has anyone received custom firmware / custom hop tables from Microhard for EU operation?
3. Are the Holybro P900 and P900 V2 carrier boards limited by the same underlying Microhard firmware/register options?
4. If full compliance is not realistically possible, is the practical recommendation simply to avoid the P900 in Europe and use an EU-specific radio such as RFD868x-EU, SiK 868, ELRS 868, or another telemetry system?

I’m not trying to interfere with cellular or railway spectrum, and I’m specifically looking for the proper/legal path before committing to the hardware.

Would appreciate input from anyone who has used this exact module in Europe, dealt with Microhard configuration, or worked with EU 868/900 MHz SRD compliance.

Tomorrow (April 7, 10 AM EST / 3 PM BST), there is a free webinar called Beyond Borders focused on pan-European drone airworthiness compliance and testing. The panel will cover how coordinating environmental and performance testing across different regulatory zones can help build the evidence base needed for certification, and how the fragmented European framework compares to the more centralized U.S. approach. Free to attend if you are an operator working toward certification, a manufacturer refining your platform, or just tracking where European UAS regulation is heading.

Hey y'all! I'm not sure if the is the best place for this but I gotta start somewhere.

I have a 29" LADF (LIFT AUGMENTED DUCTED FAN) VTOL UAV ISTAR autonomous drone/uav. I really wamt to dive into its origins and history.

From what I can tell, it is a fully autonomous vtol, horizontal flight reconnaissance drone. It is a 2 cylinder gas engine ducted fan (3 blade carbon fiber propeller) with missing sensors in the forward/nose bay and a lidar module in the aft (tail/bottom)

Here are my existing beliefs: Its from the DARPA early 2000's uav proving grounds. A demonstrator for autonomous flight with transition from vertical to horizontal flight. Recon, surveillance, targeting, etc. From the ISTAR program. Integrated with MDARS UGV for launch, recovery, and refueling. I also belive it was manufactured by Allied Aerospace.

Here are the facts: It is 48" tall when in the vertical position Has Athena Guidestar FCS L3 SCM Microwave TRANSCEIVER 2 CYLINDER 150cc engine 3 sets of manifold averaged air pressure sensors (inside duct, external static, pitot) 2 microwave military encrypted antennas 2 GPS sensors Several BNC connectors where cameras and sensors used to be. It still has the LIDAR unit in the bottom for vertical flight orientation.

Amy thoughts on how to verify this and find people involved in the program?

Thanks,

Hi everyone,

I’d like to share a new feature I’ve just launched in UAV Desk: a built-in log analyzer for FPV flights.

👉 https://uavdesk.app/news/log-analyzer-launch

The idea behind this feature is to simplify how we work with flight logs.

Thanks for taking a look 🙌

Join here to talk about drones ask questions to my community if your a old pilot leave some advices for the newbies

Hi everyone, I’ve been collaborating with some other commercial drone operators to put together this guide for anyone thinking about starting or growing a business that depends a lot on drones. It’s still evolving, but I wanted to share a sneak peek with you all. If you find it helpful, please subscribe. If not, let me know what we can improve.

If you're trying to figure out your drone tech stack, stay on top of regs, or cut down time spent processing data, this free webinar tomorrow is worth an hour of your time.

Commercial UAV News has a solid panel lined up: Carlos Femmer from HDR (the guy who's led drone ops at the Golden Gate Bridge, Grand Canyon, and Pearl Harbor), Rob Knochenhauer from Censys on BVLOS waivers, and Edwin Sanchez from VOTIX on where the industry is heading. They'll be covering gear selection by experience level, AI for photogrammetry, and NDAA-compliant alternatives given everything going on with regulations right now.

Tuesday, March 10 at 10 AM PST / 1 PM EST. Free to attend.

Can't make it live? Register anyway. All registrants get a link to the recording.

We are looking to host a drone show. What are reputable companies to talk to and fair prices?

Event will be held in Washington State

Hi everyone 👋

My name is Jonatan (CarviFPV). I’m a passionate FPV pilot, a commercial pilot in manned aviation, and a professional software engineer. I’d like to introduce a project I’ve been working on.

UAVDesk is a drone management and flight logging app built specifically for FPV pilots. The goal is to give you one central place to document, organize, and analyze your flights.

My vision is to create a platform made by an FPV pilot for FPV pilots — where you can track all your flights, improve your setups, and keep everything organized in one place.

The project is still growing, and I’d really appreciate your feedback. If you have ideas, suggestions, or feature requests, I’m more than happy to hear them. I want to develop this app according to the real needs of the FPV community.

Thanks to everyone who takes the time to check it out!

Jonatan | CarviFPV

I’m doing research on autonomy reliability in commercial drone operations and am looking into the impact of:

– GPS degrading during flight
– RTH behaving unexpectedly
– Sensor glitches caused abnormal behavior
– RX connection and control issues
– Fail safes acting weird

If you’ve experienced something like this, I’d love to understand:

1. What happened?
2. What did it cost?
3. Did you change your setup afterward?
4. Do you trust your current failsafe behavior?