SRD433-taajuuskaista (Short Range Devices) on 70 cm radioamatöörialueen sisällä oleva luvasta vapaiden laitteiden käyttöön osoitettu taajuusalue. Alue tunnetaan myös nimillä ISM433 (Industry Science Medical) ja LPD433 (Low Power Devices).

Kaistan tarkat rajat ovat 433,040 - 434,790 MHz. Keskitaajuus laitteilla on 433,920 MHz. Maksimi lähetysteho 433-laitteilla on laitteen tyypistä riippuen 1, 10 tai 25 mW ja lähetteen modulaatio NFM.

Taajuusalue on eräs radiospektrin eniten käytetyistä. Käyttökohteisiin kuuluvat muun muassa:

  • lääketieteelliset sovellukset
  • langattomat lämpömittarit ja sääasemat
  • kauko-ohjatut pistorasiat
  • kauko-ohjattavat avainjärjestelmät
  • työkoneiden kauko-ohjaus
  • rengaspaineen valvontajärjestelmät

Tiheästi asutuilla alueilla on mahdollista havaita vesiputousnäytöllä varustetuilla vastaanottimilla, kuten ohjelmistoradioilla, jatkuva lyhyiden datapurskeiden virta 433-laitteista.

rtl_433 muokkaa

433-laitteiden vastaanottoon harrastajayhteisö on kehittänyt rtl_433-nimisen ohjelman [1] käytettäväksi RTLSDR-vastaanottimen kanssa. Linuxille ohjelman lähdekoodi on saatavilla Githubista ja Windowsille on valmiiksi käännetty binääri harrastajasivustolla. Ohjelma pystyy dekoodaamaan 200 laitemallin signaalin.

   [01]  Silvercrest Remote Control
   [02]  Rubicson Temperature Sensor
   [03]  Prologue, FreeTec NC-7104, NC-7159-675 temperature sensor
   [04]  Waveman Switch Transmitter
   [06]* ELV EM 1000
   [07]* ELV WS 2000
   [08]  LaCrosse TX Temperature / Humidity Sensor
   [10]* Acurite 896 Rain Gauge
   [11]  Acurite 609TXC Temperature and Humidity Sensor
   [12]  Oregon Scientific Weather Sensor
   [13]* Mebus 433
   [14]* Intertechno 433
   [15]  KlikAanKlikUit Wireless Switch
   [16]  AlectoV1 Weather Sensor (Alecto WS3500 WS4500 Ventus W155/W044 Oregon)
   [17]  Cardin S466-TX2
   [18]  Fine Offset Electronics, WH2, WH5, Telldus Temperature/Humidity/Rain Sensor
   [19]  Nexus, FreeTec NC-7345, NX-3980, Solight TE82S, TFA 30.3209 temperature/humidity sensor
   [20]  Ambient Weather F007TH, TFA 30.3208.02, SwitchDocLabs F016TH temperature sensor
   [21]  Calibeur RF-104 Sensor
   [22]  X10 RF
   [23]  DSC Security Contact
   [24]* Brennenstuhl RCS 2044
   [25]  Globaltronics GT-WT-02 Sensor
   [26]  Danfoss CFR Thermostat
   [29]  Chuango Security Technology
   [30]  Generic Remote SC226x EV1527
   [31]  TFA-Twin-Plus-30.3049, Conrad KW9010, Ea2 BL999
   [32]  Fine Offset Electronics WH1080/WH3080 Weather Station
   [33]  WT450, WT260H, WT405H
   [34]  LaCrosse WS-2310 / WS-3600 Weather Station
   [35]  Esperanza EWS
   [36]  Efergy e2 classic
   [37]* Inovalley kw9015b, TFA Dostmann 30.3161 (Rain and temperature sensor)
   [38]  Generic temperature sensor 1
   [39]  WG-PB12V1 Temperature Sensor
   [40]  Acurite 592TXR Temp/Humidity, 5n1 Weather Station, 6045 Lightning, 3N1, Atlas
   [41]  Acurite 986 Refrigerator / Freezer Thermometer
   [42]  HIDEKI TS04 Temperature, Humidity, Wind and Rain Sensor
   [43]  Watchman Sonic / Apollo Ultrasonic / Beckett Rocket oil tank monitor
   [44]  CurrentCost Current Sensor
   [45]  emonTx OpenEnergyMonitor
   [46]  HT680 Remote control
   [47]  Conrad S3318P, FreeTec NC-5849-913 temperature humidity sensor
   [48]  Akhan 100F14 remote keyless entry
   [49]  Quhwa
   [50]  OSv1 Temperature Sensor
   [51]  Proove / Nexa / KlikAanKlikUit Wireless Switch
   [52]  Bresser Thermo-/Hygro-Sensor 3CH
   [53]  Springfield Temperature and Soil Moisture
   [54]  Oregon Scientific SL109H Remote Thermal Hygro Sensor
   [55]  Acurite 606TX Temperature Sensor
   [56]  TFA pool temperature sensor
   [57]  Kedsum Temperature & Humidity Sensor, Pearl NC-7415
   [58]  Blyss DC5-UK-WH
   [59]  Steelmate TPMS
   [60]  Schrader TPMS
   [61]* LightwaveRF
   [62]* Elro DB286A Doorbell
   [63]  Efergy Optical
   [64]* Honda Car Key
   [67]  Radiohead ASK
   [68]  Kerui PIR / Contact Sensor
   [69]  Fine Offset WH1050 Weather Station
   [70]  Honeywell Door/Window Sensor, 2Gig DW10/DW11, RE208 repeater
   [71]  Maverick ET-732/733 BBQ Sensor
   [72]* RF-tech
   [73]  LaCrosse TX141-Bv2, TX141TH-Bv2, TX141-Bv3, TX141W, TX145wsdth sensor
   [74]  Acurite 00275rm,00276rm Temp/Humidity with optional probe
   [75]  LaCrosse TX35DTH-IT, TFA Dostmann 30.3155 Temperature/Humidity sensor
   [76]  LaCrosse TX29IT, TFA Dostmann 30.3159.IT Temperature sensor
   [77]  Vaillant calorMatic VRT340f Central Heating Control
   [78]  Fine Offset Electronics, WH25, WH32B, WH24, WH65B, HP1000 Temperature/Humidity/Pressure Sensor
   [79]  Fine Offset Electronics, WH0530 Temperature/Rain Sensor
   [80]  IBIS beacon
   [81]  Oil Ultrasonic STANDARD FSK
   [82]  Citroen TPMS
   [83]  Oil Ultrasonic STANDARD ASK
   [84]  Thermopro TP11 Thermometer
   [85]  Solight TE44/TE66, EMOS E0107T, NX-6876-917
   [86]  Wireless Smoke and Heat Detector GS 558
   [87]  Generic wireless motion sensor
   [88]  Toyota TPMS
   [89]  Ford TPMS
   [90]  Renault TPMS
   [91]  inFactory, nor-tec, FreeTec NC-3982-913 temperature humidity sensor
   [92]  FT-004-B Temperature Sensor
   [93]  Ford Car Key
   [94]  Philips outdoor temperature sensor (type AJ3650)
   [95]  Schrader TPMS EG53MA4, PA66GF35
   [96]  Nexa
   [97]  Thermopro TP08/TP12/TP20 thermometer
   [98]  GE Color Effects
   [99]  X10 Security
   [100]  Interlogix GE UTC Security Devices
   [101]* Dish remote 6.3
   [102]  SimpliSafe Home Security System (May require disabling automatic gain for KeyPad decodes)
   [103]  Sensible Living Mini-Plant Moisture Sensor
   [104]  Wireless M-Bus, Mode C&T, 100kbps (-f 868950000 -s 1200000)
   [105]  Wireless M-Bus, Mode S, 32.768kbps (-f 868300000 -s 1000000)
   [106]* Wireless M-Bus, Mode R, 4.8kbps (-f 868330000)
   [107]* Wireless M-Bus, Mode F, 2.4kbps
   [108]  Hyundai WS SENZOR Remote Temperature Sensor
   [109]  WT0124 Pool Thermometer
   [110]  PMV-107J (Toyota) TPMS
   [111]  Emos TTX201 Temperature Sensor
   [112]  Ambient Weather TX-8300 Temperature/Humidity Sensor
   [113]  Ambient Weather WH31E Thermo-Hygrometer Sensor, EcoWitt WH40 rain gauge
   [114]  Maverick et73
   [115]  Honeywell ActivLink, Wireless Doorbell
   [116]  Honeywell ActivLink, Wireless Doorbell (FSK)
   [117]* ESA1000 / ESA2000 Energy Monitor
   [118]* Biltema rain gauge
   [119]  Bresser Weather Center 5-in-1
   [120]* Digitech XC-0324 temperature sensor
   [121]  Opus/Imagintronix XT300 Soil Moisture
   [122]* FS20
   [123]* Jansite TPMS Model TY02S
   [124]  LaCrosse/ELV/Conrad WS7000/WS2500 weather sensors
   [125]  TS-FT002 Wireless Ultrasonic Tank Liquid Level Meter With Temperature Sensor
   [126]  Companion WTR001 Temperature Sensor
   [127]  Ecowitt Wireless Outdoor Thermometer WH53/WH0280/WH0281A
   [128]  DirecTV RC66RX Remote Control
   [129]* Eurochron temperature and humidity sensor
   [130]  IKEA Sparsnas Energy Meter Monitor
   [131]  Microchip HCS200 KeeLoq Hopping Encoder based remotes
   [132]  TFA Dostmann 30.3196 T/H outdoor sensor
   [133]  Rubicson 48659 Thermometer
   [134]  Holman Industries iWeather WS5029 weather station (newer PCM)
   [135]  Philips outdoor temperature sensor (type AJ7010)
   [136]  ESIC EMT7110 power meter
   [137]  Globaltronics QUIGG GT-TMBBQ-05
   [138]  Globaltronics GT-WT-03 Sensor
   [139]  Norgo NGE101
   [140]  Elantra2012 TPMS
   [141]  Auriol HG02832, HG05124A-DCF, Rubicson 48957 temperature/humidity sensor
   [142]  Fine Offset Electronics/ECOWITT WH51, SwitchDoc Labs SM23 Soil Moisture Sensor
   [143]  Holman Industries iWeather WS5029 weather station (older PWM)
   [144]  TBH weather sensor
   [145]  WS2032 weather station
   [146]  Auriol AFW2A1 temperature/humidity sensor
   [147]  TFA Drop Rain Gauge 30.3233.01
   [148]  DSC Security Contact (WS4945)
   [149]  ERT Standard Consumption Message (SCM)
   [150]* Klimalogg
   [151]  Visonic powercode
   [152]  Eurochron EFTH-800 temperature and humidity sensor
   [153]  Cotech 36-7959, SwitchDocLabs FT020T wireless weather station with USB
   [154]  Standard Consumption Message Plus (SCMplus)
   [155]  Fine Offset Electronics WH1080/WH3080 Weather Station (FSK)
   [156]  Abarth 124 Spider TPMS
   [157]  Missil ML0757 weather station
   [158]  Sharp SPC775 weather station
   [159]  Insteon
   [160]  ERT Interval Data Message (IDM)
   [161]  ERT Interval Data Message (IDM) for Net Meters
   [162]* ThermoPro-TX2 temperature sensor
   [163]  Acurite 590TX Temperature with optional Humidity
   [164]  Security+ 2.0 (Keyfob)
   [165]  TFA Dostmann 30.3221.02 T/H Outdoor Sensor
   [166]  LaCrosse Technology View LTV-WSDTH01 Breeze Pro Wind Sensor
   [167]  Somfy RTS
   [168]  Schrader TPMS SMD3MA4 (Subaru)
   [169]* Nice Flor-s remote control for gates
   [170]  LaCrosse Technology View LTV-WR1 Multi Sensor
   [171]  LaCrosse Technology View LTV-TH Thermo/Hygro Sensor
   [172]  Bresser Weather Center 6-in-1, 7-in-1 indoor, new 5-in-1, 3-in-1 wind gauge, Froggit WH6000, Ventus C8488A
   [173]  Bresser Weather Center 7-in-1
   [174]  EcoDHOME Smart Socket and MCEE Solar monitor
   [175]  LaCrosse Technology View LTV-R1 Rainfall Gauge
   [176]  BlueLine Power Monitor
   [177]  Burnhard BBQ thermometer
   [178]  Security+ (Keyfob)
   [179]  Cavius smoke, heat and water detector
   [180]  Jansite TPMS Model Solar
   [181]  Amazon Basics Meat Thermometer
   [182]  TFA Marbella Pool Thermometer
   [183]  Auriol AHFL temperature/humidity sensor
   [184]  Auriol AFT 77 B2 temperature sensor
   [185]  Honeywell CM921 Wireless Programmable Room Thermostat
   [186]  Hyundai TPMS (VDO)
   [187]  RojaFlex shutter and remote devices
   [188]  Marlec Solar iBoost+ sensors
   [189]  Somfy io-homecontrol
   [190]  Ambient Weather WH31L (FineOffset WH57) Lightning-Strike sensor
   [191]  Markisol, E-Motion, BOFU, Rollerhouse, BF-30x, BF-415 curtain remote
   [192]  Govee Water Leak Dectector H5054, Door Contact Sensor B5023
   [193]  Clipsal CMR113 Cent-a-meter power meter
   [194]  Inkbird ITH-20R Radiotaajuuskirja/temperature sensortemperature humidity sensor
   [195]  RainPoint soil temperature and moisture sensor
   [196]  Atech-WS308 temperature sensor
   [197]  Acurite Grill/Meat Thermometer 01185M
   [198]* EnOcean ERP1
   [199]  Linear Megacode Garage/Gate Remotes
   [200]* Auriol 4-LD5661 temperature/rain sensor


Varsinkin Britanniassa taajuusaluetta on käytetty PMR446:n ruuhkaantumisen takia puheradio- ja itkuhälytinkäytössä LPD433-standardin radioilla. Suomessa taajuusalueella ei esiinny puheradiokäyttöä.

  1. https://github.com/merbanan/rtl_433