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External Antennas 433MHz and 868MHz
Need Answer
Hello.
How long antenna cables may have to 433MHz module?
I have about 20-25m cable to 2x antennas http://www.conrad.com/ce/en/product/190073/Aurel-650200313-433MHz-Radio-Kit I have had these for my TellStick and it worked really well. Now when I plug in the cable to the external 433MHz module becomes really hot.
I assume that the module can not handle all resistance as cables and antennas form.
Therefore, I want to know what the tolerances are on the external 433MHz module.
Or do you think it might be wrong on my 433MHz module?
It may also be helpful to know the maximum approved length even at 868MHz module, there are also external antennas for 868MHz and I have really understood a great improvement with external antennas.
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