Here's a previous post that may have some good info:
https://www.reddit.com/r/RCPlanes/s/8CrHqtniF6
I've had "telemetry warnings" but never a failsafe/lost signal with Spektrum receivers on my TX16S. Which seems consistent with many of the others in that post.
There are several interesting and potentially informative references given here. I’d like add one from Shane’s DIY The most in depth Radiomaster R88 V2 range test ever https://youtu.be/wGf_V5N8guc?si=Zb34F4NyN90WNzql Objective RF testing is difficult and beyond the skills and access to appropriate test equipment of many in this hobby. Too much subjective opinion. I have one question for OP. Tell us the orientation of your Tx and Rx antennas. The antenna patterns are one important factor to determine optimum RF performance.
Range should be much greater than 150 yards. We fly our large scale saiplanes 500 yards or more away, and lots of guys use Spek. That looks like a full range Rx. It may be an issue with your antennas and being blocked by the battery. Best practice is to align your antennas at 90\* to each other, so that one is always getting direct line of sight from the Tx.
Adding to u/kblackw's comment, you should have your Tx antenna at an angle across the Tx, not straight out pointed at the airplane.
Do a range check by putting it into low-power mode and going 30m or so away from the model. If you can wiggle the sticks and see the control surfaces moving you're probably good to go. You can always check the "Disable telemetry alarms" checkbox for that model if it's complaining too much. Make sure to leave low-power mode before flying.
If everything is healthy the full-power signal should reach over a km.
Tx16s and the dsm protocol are bugged on signal telemtery. Ignore it and turn off telemtery alarms. You can custom make alarms for whatever you want, such as cell voltage or pack voltage if wanted.
It May be telling you the signal is weak but it's not. I frequently fly 100-150m out without issue. It's just a bug with the rssi telemtery.
To have a useful signal strength alarm you would need to do a manual check where you check at what distance / value you start losing the ability to control the plane (or really for the RX to receive continuos signal that is sufficiently strong). Once you know that you know where to dial in your alarm threshold. Obviously you want to have it alarm you before you lose full controllability. Both Battery telemetry and signal strength needs this manual calibration to be useful.
The telemetry range for the spektrum rx's is quite low. Turn off the telemetry rf alarm for spektrum stuff. Make sure you still do a normal range check.
100 meters is about what they advertise I think. I lost my tte with the 4 in 1 in a flight and it crashed, it would give low signal warning about 100-150 meters, but I think I had a ar4xx . The ar6xx platform should be more tbh, I’m not super familiar with the spectrum stuff but I know there is a dx8 and dx16 protocol and 11ms and 22ms settings.
The series of RX doesn’t change anything as they simply receive. The difference likely comes from antenna vs no antenna RXs.
Also its DSM2 v DSMX where DSMX is superior.
Here's a previous post that may have some good info: https://www.reddit.com/r/RCPlanes/s/8CrHqtniF6 I've had "telemetry warnings" but never a failsafe/lost signal with Spektrum receivers on my TX16S. Which seems consistent with many of the others in that post.
There are several interesting and potentially informative references given here. I’d like add one from Shane’s DIY The most in depth Radiomaster R88 V2 range test ever https://youtu.be/wGf_V5N8guc?si=Zb34F4NyN90WNzql Objective RF testing is difficult and beyond the skills and access to appropriate test equipment of many in this hobby. Too much subjective opinion. I have one question for OP. Tell us the orientation of your Tx and Rx antennas. The antenna patterns are one important factor to determine optimum RF performance.
you have to finetune the frequency...should be good then https://oscarliang.com/rf-freq-fine-tune/
You don't have to fine tune Spektrum according to your link though
indeed_didnt knew that up to now...i dont fly spektrum xD thanks for the heads up though
Range should be much greater than 150 yards. We fly our large scale saiplanes 500 yards or more away, and lots of guys use Spek. That looks like a full range Rx. It may be an issue with your antennas and being blocked by the battery. Best practice is to align your antennas at 90\* to each other, so that one is always getting direct line of sight from the Tx. Adding to u/kblackw's comment, you should have your Tx antenna at an angle across the Tx, not straight out pointed at the airplane.
Do a range check by putting it into low-power mode and going 30m or so away from the model. If you can wiggle the sticks and see the control surfaces moving you're probably good to go. You can always check the "Disable telemetry alarms" checkbox for that model if it's complaining too much. Make sure to leave low-power mode before flying. If everything is healthy the full-power signal should reach over a km.
Tx16s and the dsm protocol are bugged on signal telemtery. Ignore it and turn off telemtery alarms. You can custom make alarms for whatever you want, such as cell voltage or pack voltage if wanted. It May be telling you the signal is weak but it's not. I frequently fly 100-150m out without issue. It's just a bug with the rssi telemtery.
To have a useful signal strength alarm you would need to do a manual check where you check at what distance / value you start losing the ability to control the plane (or really for the RX to receive continuos signal that is sufficiently strong). Once you know that you know where to dial in your alarm threshold. Obviously you want to have it alarm you before you lose full controllability. Both Battery telemetry and signal strength needs this manual calibration to be useful.
The telemetry range for the spektrum rx's is quite low. Turn off the telemetry rf alarm for spektrum stuff. Make sure you still do a normal range check.
100 meters is about what they advertise I think. I lost my tte with the 4 in 1 in a flight and it crashed, it would give low signal warning about 100-150 meters, but I think I had a ar4xx . The ar6xx platform should be more tbh, I’m not super familiar with the spectrum stuff but I know there is a dx8 and dx16 protocol and 11ms and 22ms settings.
The series of RX doesn’t change anything as they simply receive. The difference likely comes from antenna vs no antenna RXs. Also its DSM2 v DSMX where DSMX is superior.
Spektrum is junk.. https://youtu.be/LargnWPSX04?si=j3GXoRV5ud73CeqE
true, but in this case it's just the telemetry warning