The longest antenna I have had was on a toy-grade monster truck, and it was just about 2 feet long. The transmitter's antenna was a bit over 3 feet long, and doubled as a fencing foil. 27 Mhz was on its way out by then.
Very interesting video - to the point and easily understood! Thank you! I'm currently building a RC tugboat, and because of the heavy construction and the materials used (very thick fiberglass, stainless steel, brass etc), I have decided to place the Rx in the highest point on the boat which is the wheelhouse. The wheelhouse itself will be made of 1/8" plywood, so that should work well. BTW, to give you some idea on what I consider heavy construction... The boat is only about 38 inches long but it will weigh around 90 lbs when finished. Yes, it does float perfectly well with that amount of weight :)
@@RCexplained Thanks buddy! I enjoy building from scratch and preparations are underway for the next project... In between building, I always look forward to your informative video's!
Awesome vid! Based on what i picked up, im surprised there arent any antennas that are folded into 3 different axis. Im not sure how to explain this but imagine one long antena folded into x, y and z axis to assume a spherical shape/ coverage
Thanks for the comment James. What is interesting about the Antennas is that they are "tuned" at a specific length. You can't make them longer or shorter, otherwise they would be out of tune. The active part of the Antenna is also required to be straight in order to be effective. These limitations are quite significant for the design, I'm not sure how they would be able to cover all axis as is.
Ha, it took me a while for this to click! Luckily, when jumping, the transmitter is typically very close to the car that is jumping. I don't jump my car but would expect range to be OK. I'd only be worried about broken parts. Definitely true that there is some sort of control input that needs to make its way to the car while in the air to maintain control.
Thanks for all informative videos. All my receivers have two antennas, no satelites, so I can not cover all 3 axes. What is better placement? Both horizontally or 1 horizontally and 1 verticaly? And what about transmitter antenna orientation, please? edit: Oh I am talking about airplane.
Most transmitters on radios today do not allow for antenna adjustment, therefore I would say however you hold your transmitter is fine! If you have 2 of the 3 axis covered you are OK. It does not matter so much if they are both horizontal or 1 vertical and the other horizontal. You will have similar results with either way. What is more important is that you place the receiver and specifically the antenna away from other components within your airplane.
Hey Remko, that is an interesting thought! Other components may make it more difficult for the RX to receive a signal, however, Carbon Fiber would make it even more difficult to receive a signal. My preference if I had no other choice would be to leave it. 2.4 GHz systems (having a short wavelength) are actually quite resistant to interference from a lot of the electronic used in RC. But I would not expose the system to any unnecessary risk or any extra unnecessary risk.
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Man I still run some crystal stuff from the early 90’s. But most I’ve converted to modern digital and it’s so much tidier and reliable
Great info. Your videos should be essential study for all RC operators!
Thanks for the comment!
The longest antenna I have had was on a toy-grade monster truck, and it was just about 2 feet long. The transmitter's antenna was a bit over 3 feet long, and doubled as a fencing foil. 27 Mhz was on its way out by then.
Wow, that is just about as long as they come back in the day. Thanks for sharing!
Hey ryan great vid about antennas, heres a helpful tip. Some radios have Rssi, meaning u can see the signal strength from the transmitter its self.
Yes, for sure and some radio's allow you to use the telemetry data with a range check. We will dig in to this in another video.
Very interesting video - to the point and easily understood! Thank you!
I'm currently building a RC tugboat, and because of the heavy construction and the materials used (very thick fiberglass, stainless steel, brass etc), I have decided to place the Rx in the highest point on the boat which is the wheelhouse. The wheelhouse itself will be made of 1/8" plywood, so that should work well. BTW, to give you some idea on what I consider heavy construction... The boat is only about 38 inches long but it will weigh around 90 lbs when finished. Yes, it does float perfectly well with that amount of weight :)
Sounds like a great project Remko!
@@RCexplained Thanks buddy! I enjoy building from scratch and preparations are underway for the next project... In between building, I always look forward to your informative video's!
@@remkojerphanion4686 It's good to hear you look forward to the videos!
Excellent info. Thanks!
Thanks Baxrok2!
I flew a futaba gold box back in the 80's
Awesome vid! Based on what i picked up, im surprised there arent any antennas that are folded into 3 different axis. Im not sure how to explain this but imagine one long antena folded into x, y and z axis to assume a spherical shape/ coverage
Thanks for the comment James. What is interesting about the Antennas is that they are "tuned" at a specific length. You can't make them longer or shorter, otherwise they would be out of tune. The active part of the Antenna is also required to be straight in order to be effective. These limitations are quite significant for the design, I'm not sure how they would be able to cover all axis as is.
RC explained: cars only have 2 dimensions
Rcdude81: Am I a joke to you
Ha, it took me a while for this to click! Luckily, when jumping, the transmitter is typically very close to the car that is jumping. I don't jump my car but would expect range to be OK. I'd only be worried about broken parts.
Definitely true that there is some sort of control input that needs to make its way to the car while in the air to maintain control.
@@RCexplained true 😂😂 some people fly their cars rather than drive them. Only 200ft or so at most though.
Thanks for all informative videos. All my receivers have two antennas, no satelites, so I can not cover all 3 axes. What is better placement? Both horizontally or 1 horizontally and 1 verticaly? And what about transmitter antenna orientation, please?
edit: Oh I am talking about airplane.
Most transmitters on radios today do not allow for antenna adjustment, therefore I would say however you hold your transmitter is fine!
If you have 2 of the 3 axis covered you are OK. It does not matter so much if they are both horizontal or 1 vertical and the other horizontal. You will have similar results with either way.
What is more important is that you place the receiver and specifically the antenna away from other components within your airplane.
In tight situations, perhaps a piece of carbon fibre placed between your receiver and other components will help minimize interference?
Hey Remko, that is an interesting thought! Other components may make it more difficult for the RX to receive a signal, however, Carbon Fiber would make it even more difficult to receive a signal. My preference if I had no other choice would be to leave it.
2.4 GHz systems (having a short wavelength) are actually quite resistant to interference from a lot of the electronic used in RC. But I would not expose the system to any unnecessary risk or any extra unnecessary risk.
@@RCexplained I agree, no unneccessary risk. Certainly for anything that flies!
My receiver says it goes up to 5.4 V and I have a 7.4 V battery is that all right
I would say no.