27Mhz toy car transmitter/receiver

• receiver


• transmitter

L1, L4=9 turns, .15mm wire on 4.5mm diameter tunable ferrite coil former

L2=15 turns, .5mm wire, 5mm diameter

L3=3.5 turns, .5mm wire, 5mm diameter

49MHz walkie-talkie

• schematic

434MHz ASK/OOK AM transmitter/receiver

• RX3302 super-regenerative receiver module schematic


• RX3302 super-regenerative receiver module photo


• X10 RF daughter board - super-regenerative receiver


• 434MHz short-range communications - article in Elektor 1998/5


• SP-Elektroniikka super-regenerative receiver and SAW-based transmitter


• SAW-based 434MHz transmitter schematic with RO2101 (from appnote below)


• SAW-based transmitter design appnote from RFM


• SAWR-based transmitters, EPCOS appnote#1

Single-chip RF transmitter/receiver integrated circuits

• MAX1470 315MHz Low-Power, +3V superheterodyne receiver


• MAX1472 300-450MHz ASK transmitter


• MAX1473 315/433MHz ASK superheterodyne receiver


• Atmel T5754 434MHz UHF ASK/FSK transmitter


• Atmel U2741 300-450MHz UHF ASK/FSK transmitter


• Atmel U3741 300-450MHz UHF ASK receiver


• Atmel AT86RF211 400-950MHz programmable UHF FSK transceiver


• Chipcon CC1000 300-1000MHz programmable UHF FSK transceiver


• Nordic nRF905 433/868/915 MHz transceiver


• Integration Associates IA-4220 315,434,868,915MHz programmable no-parts FSK transmitter


• Integration Associates IA-4320 315,434,868,915MHz programmable no-parts zero-IF FSK receiver


• Himark RX3310A, RX3400 low power (2mA) UHF ASK receiver


• Melexis TH71101 315/433MHz FSK/FM/ASK, Single-Conversion Superhet
  
  TH71102 315/433MHz FSK/FM/ASK, Double-Conversion Superhet
  
  TH7122 27 to 930MHz, FSK/FM/ASK transceiver
  
  TH72011 434MHz FSK transmitter
  
  TH72012 434MHz ASK transmitter


• Microchip rfRXD0420 434MHz ASK/FSK superheterodyne receiver (same as TH71101)


• Microchip rfPIC12F675 434MHz ASK/FSK transmitter with flash microcontroller


• RFMD RF2915 433/868/915 MHz FSK/ASK/OOK transceiver


• RFMD RF2510 433/915MHz UHF FM/FSK transmitter


• Infineon TDA5100 434/868MHz ASK/FSK transmitter


• Infineon TDA5200/5210/5220 ASK/FSK receiver


• Philips UAA3201T 150-450MHz ASK receiver


• TI TRF1400 200-450MHZ ASK receiver, obsolete


• TI TRF4400 434MHz ASK transmitter


• Xemics XE1201A 300-500MHz FSK transceiver
  
  XE1205 433/868/915MHz multi-channel FSK transceiver