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FrSkyRC / RF_Feedback_Group

Regarding to the RF issues.
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TD telemetry locked a 25mw #16

Open rwijnhov opened 6 months ago

rwijnhov commented 6 months ago

If I set my td receiver on 100mw and telemetry on 25mw is my understanding correct that vfr and rssi are also on 25mw?

To answer my own question yes it is the telemetry signal not the rx signal.Also it looks like telemtry is always locked at 25mw. I am on 868 flex firmware i just tested with servo test mode on rx: -100mw, 25mw telemetry setting on. All sensors lost and vfr and rssi low an gone at x meter, servo kept moving for 2 the range of x -100mw, 25mw telemetry setting off. All sensors lost and vfr and rssi low an gone at x meter, servo kept moving for 2 the range of x -500mw, 25mw telemetry setting off. All sensors lost and vfr and rssi low an gone at x meter, servo kept moving for 4* the range of x

I rebound the rx everytime after changing power output. So to make it clear on all settings telemetry, vfr and rssi numbers went down at the same spot.

My conclusion of these test is that on 868 band rssi and vfr are only usefull at 25mw power output since telemetry seems locked at 25mw. Is this a bug?

rwijnhov commented 6 months ago

So you see rssi and vfr numbers goed down under 40 for the 900 band and then all sensors are gone. But that can't be because I still have 4* the range so RSSI can't be that low.

rwijnhov commented 6 months ago

I run flex firmware.

mawzthefinn commented 4 months ago

This is a regulatory requirement for 868MHz use, due to EU regs.

bsongis-frsky commented 2 months ago

I transfer this issue to the new repo, but I think perhaps it could be closed!