TXE433
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To pull an address line low, simply flip the switch for that address line.
Match the address settings on the desired receiver module and you’re ready
to go.
ANTENNA CONSIDERATIONS:
The simplest antenna consists of a piece of wire approximately 6 to 7 inches
long. If you desire more range you can try a ground plane antenna or a
Yagi such as the Ramsey 4004 model. The antenna should be tuned for the
433 MHz band for best operation.
Remember that the range you get will depend on terrain, obstructions, and
height of antenna. Buildings can reflect RF energy making it difficult or
impossible to receive the desired signal. Also, if a reflected signal is
“bounced” off of a building or other object, it can be received along with the
direct signal. If the reflected signal is out of phase with the direct signal, it is
possible for the direct signal to be partially cancelled by the weaker,
reflected signal. Since the wavelength of the 433 MHz signal is about two
feet, moving the antenna slightly can effect the phase of a reflected signal.
The ideal conditions for best transmission and reception are line of sight and
outside with no obstructions.
Summary of Contents for TXE433
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