Questions tagged [video-transmitters]

Also referred to as "VTX". Use on questions regarding video transmitters.

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4
votes
1answer
46 views

Can I mount my RX and VTX antennae next to one another?

I've heard that it is bad practice to mount a 2.4 GHz RC receiver antenna next to a 5.8 GHz FPV VTX antenna because the transmitting antenna will negatively impact the receiving antenna's reception. ...
3
votes
2answers
62 views

How do I set up IRC Tramp for my HGLRC Forward VTX?

I have a Diatione Mamba F405 MK2 and a HGLRC Forward VTX on my 6s race quad and I can't control the vtx using betaflight. The video transmission itself works fine, I just have to use the button on the ...
6
votes
1answer
61 views

Video is lost after crashing

This problem started a few days ago. After crashing with my quad I almost completely lose the video feed until I power cycle the drone. The only time I have video is when I get really close to the ...
2
votes
1answer
33 views

Does FPV transmitter antenna need to match the goggle receiver antenna?

So for a Fatshark, do I need to have both FPV transmitter and receiver antennas to be of the same brand and same specs? What about for a DJI goggle?
2
votes
0answers
22 views

Does flying a drone close to the ground affect signal quality? [duplicate]

If I were to fly a drone over a large, flat field and there was nothing blocking Line of sight to the drone, would flying at close proximity to the ground impact the FPV video reception? would flying ...
7
votes
3answers
1k views

When flying FPV with a 5.8ghz video transmitter, is an Amateur Radio License (Ham license) required?

What are the legal requirements I need to know when operating a 5.8ghz video transmitter like the ones often used for flying FPV? Are the rules different around the world? Is a technicians class ...
1
vote
1answer
59 views

How hot is too hot for a VTX?

I have heard that when a VTX gets too hot, it can cause irreversible damage to the VTX. I have sometimes noticed that the VTX on my 5-inch drone gets very hot to the touch. How hot is too hot for a ...
5
votes
1answer
45 views

Quality of transmitted image and electrical problems

There is a question already regarding a flickering OSD, but I wonder how other image quality problems relate to electrical problems. What's the first thing one has to look for when the transmitted ...
5
votes
2answers
897 views

What is a “mushroom antenna”?

In Can circularly and linearly polarized antennae be used together for FPV? I read about a "mushroom antenna". While I have very little experience with FPV drones I am generally experienced in radios ...
7
votes
2answers
84 views

Calculating the range of an FPV drone

It's been a long time since I studied Electronics and Communications Engineering, but if I recall correctly, it should be possible to calculate an estimate for the range of an FPV drone given the ...
3
votes
3answers
56 views

Why is 5.8ghz used for FPV and 2.4ghz use for transmitters?

Why do most VTXs use 5.8ghz and most transmitters use 2.4ghz?
7
votes
2answers
59 views

Difference between analog and digital FPV systems?

The new DJI digital FPV system and a few other systems are using a digital signal for FPV video. How is this different from a traditional analog signal for FPV drones?
3
votes
1answer
47 views

Video breakup problems with high power using The Force VTX?

I normally fly with my VTX on 200mw but sometimes I need it to be more powerful. Whenever I turn it to a higher power setting, though, the video becomes worse. When I set it to 600mw, the video seems ...
13
votes
2answers
125 views

Why is it bad to power up a drone without an antenna on the VTX?

I've heard a few times now that if you power up your drone you have to make sure that you have an antenna on the VTX. Is that true? If so, what will happen if I power up my drone without an antenna on ...
6
votes
4answers
86 views

Why does the video cut out on HX-100 drone?

I have a BetaFPV HX-100 drone which I recently got. When I tried to fly it FPV the video feed would cut out and leave a grey screen. The OSD still showed up in the goggles so I'm not sure if there is ...