See also:

• radiometrix.co.uk has 433 MHz transceivers
• RF Modulation Inc.
• Philips "Pager APPLICATIONS HANDBOOK" AN3B March 1995. Covers
  • General intro
  • Receivers
    • Antennas
    • VHF/UHF
    • UAA2080T receiver
  • Decoders
  • Development
    • tools and materials
    • rx design
    • decoder design
  • Crystals and oscillators
  • Other