433 tx/rx modules usually have some minimalist antenna on their PCB. Additionally a 12m wireless link is peanuts for most UHF work, as these cheap receivers are in fact quite sensitive. Suggest you try longer ranges, with 50-100m thru' light obstructions a more typical range test. Line of sight (LOS) most can readily cover 200m-500m with simple antenna.
Glad it's working & that you've no interference- other band signals can be a 433 nightmare!
Extra: Andrew "BrightSpark" has just sent me a few pix of his solar garden lamp powered DS18B20 + PICAXE-08M + cheapie 433 MHz units. Sorry- no code or schematic were sent, but the setup is no doubt akin to my 433 mentions at www.picaxe.orcon.net.nz. He's got these "triffids" scattered around his rural property, & is even able to read them via TCP/IP WiFi network he's also involved with.
Glad it's working & that you've no interference- other band signals can be a 433 nightmare!
Extra: Andrew "BrightSpark" has just sent me a few pix of his solar garden lamp powered DS18B20 + PICAXE-08M + cheapie 433 MHz units. Sorry- no code or schematic were sent, but the setup is no doubt akin to my 433 mentions at www.picaxe.orcon.net.nz. He's got these "triffids" scattered around his rural property, & is even able to read them via TCP/IP WiFi network he's also involved with.
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