Is it possible to connect an analog and a digital VTX to the same FC? Specifically want audio and amazing quality, and there isn’t a single digital VTX that I have found that has audio transmission.
Specific components:
SpeedyBee f405 v3
Caddx L Goggles, Walksnail Avatar Pro kit dual antenna
XILO Stax VTX
Hi I have the same question, although the digital VTX is different.
In my case, it works.
I think it should work in your case either. Please let me know if there is any interference.
You can connect as many as you want as long as you can power them. But if they all operate at 5.8GHz, there’s a good chance that they will step on each other.
ArduPilot has very little to do with your onboard video hardware other than OSD, which is entirely optional.
Yes, I have met interference with digital/analog.
I think it’s EMI issue. what do you think @Yuri_Rage ?
I think you’re flying two VTXs in the same band and getting the obvious result despite attempting to frequency separate.
I also think you might be expecting too much of analog FPV…that picture isn’t all that bad.
In off chance you only need to record sound, you could add a small audio recorder to the drone.
Of course this doesn’t help if you want to hear the sound in real time while flying.
These little audio recorders were recommended in a YouTube video which I haven’t been able to find again.
- analog R8 5917 MHz, I think it’s about 5~8MHz bandwidth (just googled result).
- digital 5G 132 channel, which is 5660MHz , it’s 20MHz bandwith
Well, logically speaking, It’s quite far away 5660+20=5680MHz vs 5917-8=5909MHz.
It will be better, compared to original anlog video (wo digtal VTX).
Even if I use seperate power supply and move analog/digital VTX apart (e.g. 3 meters), the interference is still there.
Maybe that’s the way it is, as those are naked PCBA boards. @Yuri_Rage Expect too much
Welp not the off chance! I literally just need live sound feed as the project will be running machine learning. Only other solution I see is to have a pi or something on the drone as a seperate system running the machine learning
I think newer DJI air units support live audio along with the HD feed. Not cheap, but likely the easiest solution. Do a little research of your own before emptying your wallet on that stuff!
Yeah why is digital so expensive haha. From what I’ve seen DJI O3 and Runcam link don’t support audio transmission
Ok, so not the very latest from DJI, but there are DJI units that support live and recorded audio. All the digital stuff is expensive, and DJI is the worst in that regard.
Yeah you’re very right. Unfortunately the specific infrared camera I need for my project is only compatible with the runcam link, and the original DJI air unit is discontinued. Really do not like DJI’s monopolizing expensive methods.
No, if you are looking for cheap, opensource VTX. Please take a look at OpenIPC mario AIO, and there is audio acompany with the video feed. The quality you can see from my test video, although the hardware is not the same but close.
Yeah you are definitely right, OpenIPC is much better for FPV. Sadly, the specific infrared camera I need, the Runcam Night Eagle HD, only works with the Runcam Link, a DJI Vtx.
Stating that a particular ecosystem or transmission protocol is “better for FPV” is a little like categorically stating, “dark roast is better for coffee.”
The use case (and, to a degree, personal preference) is extremely important, and everything is a tradeoff. If you need high image quality, then you almost certainly sacrifice range, latency, or both. And likewise in reverse.
Back to your case, stuck with Runcam Link - I don’t see much of an option for live audio in that ecosystem, so it seems you’re going to need a separate audio solution. I’m not overly familiar with Runcam Link, so I’d love to be proven wrong if a live audio solution does exist for it.
If you need this flexibiltiy, just ask Runcam:
- if the camera is exchangble with RunCam WiFiLink, Based on OpenIPC
- if this version or later version has microphone (I didn’t see on the spec)
Yeah you’re right I meant better for budget. OpenIPC is way cheaper than other digital systems. I didn’t mean it was better than the other systems, sorry my wording was really weird.
Everyone watching I have decided. I will use 2 vtxs, and if anyone wants results I am here to give them. I will use the AKK Race and Foxeer Micro Camera.
Hey Everyone! If you are all interested in this project I’m going to be taking on here is the overall summary:
Background:
Disasters, whether natural or man-made, can have devastating impacts on communities, resulting in loss of life, injuries, and widespread damage. In the aftermath of such events, rapid response and effective search and rescue operations are crucial to saving lives and providing necessary relief to affected individuals. Traditional methods of locating survivors often involve extensive ground searches, which can be time-consuming and inefficient, particularly in large or difficult-to-access areas.
In recent years, advancements in unmanned aerial vehicle (UAV) technology have opened up new possibilities for enhancing disaster response efforts. UAVs equipped with advanced cameras, sensors, ML-systems, real-time communication capabilities, and autonomous navigation systems can significantly improve the speed and accuracy of locating individuals in distress. By leveraging aerial views, these UAVs can cover vast areas quickly, identifying survivors, assessing damage, and guiding emergency response teams to critical locations.
However, the effective deployment of UAVs in disaster scenarios requires careful consideration of various factors, including environmental challenges, regulatory compliance, and integration with existing emergency response frameworks. As such, there is a pressing need for a dedicated project focused on creating a UAV specifically designed to address these challenges.
Purpose:
This project is designed to streamline the process of finding individuals in a disaster-stricken area. This will allow responders to administer care faster, and the drone will be able to administer a small amount. Our project will be incorporating Machine Learning, in the forms of audio and infrared object detection. Incorporating more advanced forms of technology will help to save more lives, and will raise awareness on how technology can be used in ways to save lives.
Linked is our research plan.
Final of SY25-Science Fair.pdf (590.1 KB)
@cxtr I haven’t go over the project details (I’ll read it later, as right now it’s 2024 conference in kaga, but it’s really life saving with limited resources and shorten the time of response.
And I think there are quite a few key points need be discussed in detail.
Is it possible for you open a blog post (about this project, attracting more people on this). Then it might be more specific, as this is a topic of “2 VTXs on one FC”