Odg: FrSky RX antene
Reply #5 –
Gori zelena lampica ( u telemetry uputama mislim da se ugasi crvena) provjeri bas za tvoju verziju no pali se isto
3.4 Range check:
For safe operation, it is necessary to perform pre-flight range check.
Caution must be paid when flying the unit in the neighborhood of metal fences, concrete buildings, or rows of trees. If doing so, you may experience unexpected interferences.
Perform a range check as follows (Note: this is done with the receiver installed in the model):
a) Place the model at least two feet (60cm) above non-metal contaminated ground; for example a wooden bench.
b) Place the receiver’s antenna horizontally. Don’t let the antenna touch the ground.
c) Place the antenna of the transmitter in a vertical position.
d) Turn on the transmitter and receiver, then press and hold the “F/S Range” button of the transmitter for 4 seconds the RED LED of the transmitter module will change into GREEN, the power of the transmitter module will be reduced to ab. 1/1000th of the nominal value, and the effective distance will be shortened to ab. 1/30th of the normal value, thus effective distance will be shortened to just above 30 meters.
e) Walk away from the model while simultaneously operating the controls on the transmitter. Have an assistant stand to confirm that all controls are completely and correctly operational. You should be able to walk ab. 30m from the receiver without losing control.
f) Press the “F/S Range” button again, the range check will be finished.
3.5 Safety range indicator
When the model controlled by V8 2.4GHz radio control system is close to the maximum distance of control, the response of the model will slow down. It is the safety feature designed by FrSky. It means, the user should fly the model closer to the transmitter as soon, as the reactions are getting slower.
3.6 Signal loss indicator
In some special circumstances, such as a strong interference, the signal can be lost.
When signal lost in a short period, the receiver continues to try to search for the transmitter, at the same time, keeps the last command from transmitter, until a new command is received.
Failsafe: Our receivers support all the failsafe function for every channel. Just do it as bellow:
After the receiver has been bind, press briefly the “F/S Range” button of the receiver, the GREEN LED of the receiver will flash twice, the failsafe is set up successfully.
If you do not need the failsafe function any more, just re-bind the receiver.
Attention: Controlling distance is affected by the environment too. Please test it in an open field away from any obstacles. The controlling distance in the air is greater than on the ground. Our controlling range is based on a conservative ground test.
Hope you enjoy our 2.4GHz products which have been designed and produced using the highest quality control measures available. If you have any questions please do not hesitate to contact us.
inace ljudi prijavljuju 30-80 metara s tom funkcijom ( taman tvojih 100m),
i domet je daleko veci s polozajem koji je preporucio davorvž ( covjek zna)
My TX module has the new firmware with 30dBc power reduction in range check mode.
The flying field is dead flat, with no grass or obstructions, the RX was tripod mounted at about 1 meter, the TX module with my sweep box was hand held at about 1m also.
Receiver 1, the V8R4 four channel short range unit.
With both antennas in vertical position the servo stops sweeping at 80 meters.
With the TX antenna cross polarized (horizontal) the servo stops sweeping at 15 meters.
Receiver 2, the V8FR long range unit with diversity antennas.
With both antennas in vertical position the servo stops sweeping at 100 meters.
With the TX antenna cross polarized (horizontal) the servo stops sweeping at 80 meters.
As an extra test I pointed the tip of the TX antenna directly at the receiver and still got 40 meters.
OK, so the range check has got more usable now, but I think it should be even less. My thought is another 6dB or 10dB reduction again (about 36-40dBc).
I have a theory for you, that FrSky may be adjusting the range check mode power level in a city environment, with lots of other 2.4Ghz LAN and video transmitters around, which may be reducing their range results compared to mine.
At my club field which is about 3km from any real houses or offices there will be very little other 2.4Ghz interference.
Topic: FrSky RX antene (Read 4992 times)
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