Test transmit range of many 433mhz airplane antennas.
Configuration: Revo with control via PPM. Revo failsafe configured with left rudder for visibility of failsafe during ground testing. Air coordinator Revo set for 1.25mw. Ground OpLink set for 25mw.
Ground OpLink power is strong enough to always get through, but ground will only send if it gets signal from air coordinator, so range is entirely based on aircraft transmit strength and failsafe tells me when it is out of range.
Usage: Walk and hand carry aircraft out to 300m (approximate limit of 1.25mw). Walk around and bank aircraft and see what range this air antenna has. Try to minimize human body to RF interaction. Change air antenna without reboot. Repeat for all 20 antennas without walking back.
Untuned antenna works marginally for receive, worse for transmit. I specifically want to test transmit range. This lets me test air antenna transmit signal strength, with antenna mounted on aircraft, without walking up to 300m (times 2) for each of 20 antennas and get it all done in one day at one time so I know that GCS antenna has not moved.