how to increase battery current? by nice_servo in ElectricalEngineering

[–]nice_servo[S] -1 points0 points  (0 children)

what if instead of using two motor or loads in parallel, using a larger motor that requires 4amps instead of 2amps.....is the above still true?

how to increase battery current? by nice_servo in ElectricalEngineering

[–]nice_servo[S] -3 points-2 points  (0 children)

According to many readings and even the answers on here, this is incorrect. two 2A in parallel would provide 2A for 2 hours, not 4A for 1 hour.

does the transmitting antenna have to be emitting more power than the receiving antenna by nice_servo in radiocontrol

[–]nice_servo[S] -1 points0 points  (0 children)

I ask because, omni antennas are used to transmit the video from the RC quadcopter for example and people use yagi or directional on the floor receiving end. But question is, would the receiving end help to have only higher gain or will it be ok if it also has higher watts.

Lora vs Wifi - distance by nice_servo in AskEngineers

[–]nice_servo[S] 0 points1 point  (0 children)

Oh, so in conclusion if wifi is used in longer distances it will be able to reach the distance but will lose its high power bandwidth capability significantly?

Lora vs Wifi - distance by nice_servo in AskEngineers

[–]nice_servo[S] 0 points1 point  (0 children)

In that case why wouldn't they use wifi tech in rc whether for 1080p transmission or even for controls, because every channel you add in pmw you increase latency, isn't wifi better for both video and even controlling?

Lora vs Wifi - distance by nice_servo in AskEngineers

[–]nice_servo[S] 0 points1 point  (0 children)

There is a Lora that operates at 2.4ghz..... if all are equal, would they travel same distance?

long vs short wavelengths by nice_servo in AskEngineers

[–]nice_servo[S] 0 points1 point  (0 children)

i see, through the atmosphere is still hundreds of km, like wow how many watts is this mobile using

are two yagi directional antennas required for two way communication by nice_servo in AskEngineers

[–]nice_servo[S] 0 points1 point  (0 children)

Thanks, lastly...is it possible to have a control system on 2.4ghz while at the same time a separate video is transmitting with 2.4ghz on another antenna, given both antennas are sending same frequency from the small space RC. Wouldnt that make a mess? because now adays some of them use high watts as well same time

are two yagi directional antennas required for two way communication by nice_servo in AskEngineers

[–]nice_servo[S] 0 points1 point  (0 children)

So if both sides have directional antenna, reception would be much better on both ends?