In SX Microcontrollers, SX/B Compiler and SX-Key Tool, DosManDan wrote:

Mark,
I don't know how far you are looking to send a signal, but I've found these to be pretty effective in the 60-90 ft range. After that, stay signals start to mess things up. To get the full range, you need to invest a few dollars in an antenna made for the 433.92 frequency. There are two models I've looked at, one is about $3 and the other one is about $9. The cheap one looks like the metal antenna you would find on a radio, the other is a rubberized mini whip. If you are going for range, it think a small investment like this is worth it.

Dan

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