Specifications
★ Communication distance is close which did not achieve specified value.
1 Obstacle
With physical characteristics of poor penetrability for
2.4GHz frequency , communication distance loss will be
increased when these is line communication failed.
2 interference source
Interference from temperature, humidity and co-frequency
will increase packet loss rate.
3 Metal
Place antenna inside metal shell or there is metal nearby
the antenna will cause signal attenuation.
4 RX_EN PIN
RX_EN PIN in emitting devices didn't keep high level will
reduce the reception
sensitivity for responding signal.
5 Parameter values
The power register is set incorrectly and the air rate is set
too high.
6 Low voltage
When voltage is under 3.3V, the lower voltage, the less
transmission power.
★ Heat of module, module will be damaged easily.
1 Supply voltage
Check power supply and ensure it's between 2.0V~3.6V.
Module will be damaged permanently, if the voltage is over 3.6V
2 Stability
Please check power supply stability, voltage can't wave
frequently.
3 Anti-static
Please insure antistatic handle has been applied in
mounting process, especially LNA is a easy damaged part.
4 5v lEVEL
Communication line must be in series with 1k-1.5k resistance
if use 5V electrical level.
Appendix：
Channel List
Thismodulewillbeusedondifferentdevices,andthecorrespondingChannellistwillaredifference,
Mainly,ithasbelowchannels:
CH1：2.404000212 GHZ
CH2: 2.412000636 GHZ
CH3: 2.417000901 GHZ
CH4: 2.422001166 GHZ
CH5: 2.427001431 GHZ
CH6: 2.447002491 GHZ
CH7: 2.454002862 GHZ
CH8: 2.479337538 GHZ
Otherschannel(MHZ):
24042405240624072408240924102411241224132414241524162417241824192420
24212422242324242425242624272428242924302431243224332434243524362437
243824392440244124422443244424452446244724482449245024512452
24532454
24552456245724582459246024612462246324642465246624672468246924702471
247224732474247524762477247824792480