04-07-2025, 05:37 PM
(04-07-2025, 11:17 AM)XPS Wrote: Let's say you are using the same transmitter that has an output power of 100mw EIRP with 2 different receivers - one has a sensitivity of -92dBi and the other receiver has -98dBi of sensitivity. If you get 1000 feet of range out of the receiver with -92dBi of sensitivity you will get 2000 feet of range out of the receiver with -98dBi of sensitivity. You can also get 2000 feet of range with the receiver having -92dBi of sensitivity if you make the transmitter's output power 400mw (4x the power). The FCC does not allow that high of power though because there is no way possible to pass spurious emissions and peak power limits. The only way to increase range is to have very sensitive receivers.
You are using a different transmitter with the Spektrum setup. This could be something as simple as a pot that is dirty, which can cause exactly what you describe.
by "pot" you mean the pot in the servo?. if that were the case it should be RC system independent right? which it is not.
i understand your above description. RF power ideally drops of with 1/distance^2