Range of DEVO 7 transmitter operation

pilon707

New member
I fly on the Rodeo 150 quadcopter and I have lost contact with the quadcopter already at a distance of 100 m. So what is the effective range of this transmitter?
 

Piotrsko

Master member
In theory the TRANSMITTER range for adequate control exceeds the distance you can see what you're flying. If you only getting 100 meters, your flying site is full of reflected signals, the antennas are set up wrong, or you are near a cell tower or other sources of radio signal interference
 

LitterBug

Techno Nut
Moderator
The manual says it is <= 100mw output on the 2.4 ghz band. Not shabby, but antenna gain, placement, and orientation are unknown.

Gotta agree with @Piotrsko. Where are you tring to fly? I would expect more than 100 meters. Although when I search on range, after 80 meters reception falls off drasticly.

FCC testing documents show the date from 2011. Not a very modern radio by any means.
 
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L Edge

Master member
One other possibility is the batteries are bad (not enough charged) in either the transmitter or in the quad.
 

pilon707

New member
Flew along the coast at an altitude of 10 m... 3 km from the coast there is a cell tower...
2024-11-22 21-05-25_Приложение пилота Небосвод – Яндекс.png
 

pilon707

New member
One other possibility is the batteries are bad (not enough charged) in either the transmitter or in the quad.
Checked the battery charge of the transmitter -11 volts. DEVO 7 is running on a battery of 11 volts and 1000mA. Although a 3S 2200mA battery is recommended...
 
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pilon707

New member
In theory the TRANSMITTER range for adequate control exceeds the distance you can see what you're flying. If you only getting 100 meters, your flying site is full of reflected signals, the antennas are set up wrong, or you are near a cell tower or other sources of radio signal interference
But I flew a quadcopter at a distance of 20-30 m and at an altitude of 10 m in the same place... there were no problems with control...
 

pilon707

New member
В инструкции указано, что мощность в диапазоне 2,4 ГГц составляет менее 100 мВт
DEVO 7 has the same power as the Turnigу transmitter 9Х -100 mW but Turnigy has a communication range of 500 m
 

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pilon707

New member
My friend and I came to the conclusion that the reason for the loss of communication was some kind of obstacle... a week ago, in the same place, a friend flew a Mavik and also lost control and video communication... there are no complaints about DEVO 7... I tested the quadcopter elsewhere at a distance of 150 m... there were no problems...
 

pilon707

New member
The Devo 7 came from the factory as a full range transmitter. The 7e shipped as a short range transmitter, that's why the mod was required.
Yes, there are two options for the DEVO 7 CE transmitter with a power of 25 mV and FCC with a power of 100 mV... I have an FCC option...
 

pilon707

New member
Here the pilot flies on a quadrocopter Walkera Rodeo 150 - transmitter DEVO 7... a clearing the size of two football fields... there are no problems with control....
2024-11-24 16-53-36_Walkera Rodeo 150 FPV windy flight with the Mobius .png