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433/868/zwave transceiver RF905
#1
I'm considering buying a NRF905 transceiver? Spending $8 on a 433+868+915 (Zwave) device looks quite good to me. Alternative might be the PTR8500, the NRF9E5 should have a built in LPF function according the data sheet.

The main difference with the superheterodyne seems to be the modulation mode (FSK/GMSK), but I'm not sure what the impact is. Can someone tell me what the exact impact is and if this device works with "basic" 433Mhz devices like kaku and impuls?
 
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#2
FSK = frequency shift keying but most cheap systems work with ASK = amplitude shift keying so it will not work with these devices. In general FSK is much better but the manufacturers use ASK because it is cheaper/simpler on the hardware side
 
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#3
Thanks, so the 433Mhz part is not interesting as a replacement for the superheterodyne sender/receiver. If I connect this, does it only need new protocols or also a new HW_Type?
 
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#4
Depends. If you are just going to connect a new 433 device, then you need nothing new. Just a new hardware plugin for pilight.
 
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