CORONA RP4S1 User manual

ReceiverRP4S1
Thankyouforpurchasingtheworld’ssmallest
synthesizedreceiver!Pleasereadthemanual
carefullybeforeusingthereceiver.
WhySynthesizedReceiver?
1. Synthesizedreceivergetsridofthe
inconvenienceofusingthecrystal.Receivers
withcrystalstillusethetechnologyof1970’s
whichhavetoswitchthefrequencyby
changingthecrystal.Usershavetobring
dozensofcrystaltoflyingfield.Inaddition,
everychangingofthecrystalmaydamagethe
electrondevices.Whileitisonlyneedtopush
thebutton,youcanswitchtoanychannel
withsynthesizedreceiver.
2. Everytransmitterandreceiverhasproduction
toleranceinevitably.Buttheproduction
toleranceofthecrystalaffectsitmost.Even
themostprecisecrystalhasthetoleranceof
1‐2KHz,andsometimesitwillbe4KHz.Thisis
abigtolerancetoa10KHznarrowreceiver.
Synthesizedreceiverwillcorrectthetolerance
becauseitcanautomaticallyfollowthe
frequencytolerance.ItiswhatwillmakeR/C
receiverhasthebestperformance.
WithCorona’stechnologyinmanufacturingR/C
products,RP4S144CHSingleconversionreceiver
becomesthesmallestintheworld.Donotonly
focusonitssmallsize.Itshigh‐performancewill
surpriseyou.
RP4S1’sFeature
1. Youcanswitchthefrequencyfreely.
2. Itcanautomaticallyfollowthefrequency
tolerancewhichwillmakeitcompatiblewith
alltransmitters,includingthehigh‐rate
transmitter.
3. The'one‐button'functionmakesitconvenient
tochangethefrequency.
4. Withsuchasmallsize,thereceiverange
reachesasfaras1mile+!
5. ThedualceramicIFfiltersensureultranarrow
selectivity,andcanrejecttheadjacent
channelinterferenceeffectively.
6. DSPtechnologycanfilterthenoise
intelligentlyandeliminateglitcheffectively.
YoucanputRS410IIreceiverinanyplacewhen
youinstallitonwhateverelectricpuddle‐plane,
3Dplane,gliderortrainingplane.Anddon't
worrythetroublewhichwillbebroughtby
changingCG.
Reliability,highperformanceandsaleprice,they
arewhatCORONAcanprovideforyou.
Specifications
Size   
1.1”x0.6”x0.3”(28x15x7.6mm)
Weight0.17oz/4.7g(withshrinkwrap)
Sensitivity  betterthan2.0μV
Selectivity  ±8kHzat65dBdown
Numberofchannels1‐4
FilteringDualturnedRFcircuitry
FilteringDual4poleceramicfilter
FilteringDSPfilteringwithmild
algorithm
Modulate  FM/PPM
Shiftpolarity  PositiveorNegative
(auto‐detect)
CaseShrinkwrap
OperatingVoltage   4.8V~6.0VDC
OperatingCurrent   11mA.
FrequencySet
Fullycollapsethetransmitter’santennaand
movethetransmitterstickscontinuously.Ask
someonetowatchtheservostoseewhetherthe
receiverhaslostthesignal.Ifthereceiverdoes
notlosethesignaluntilyouareatleast90m
awayfromit,itpassesthequickrangecheck.
QuickRangeChecking
Fullycollapsethetransmitter’santennaand
movethetransmitterstickscontinuously.Ask
someonetowatchtheservostoseewhetherthe
receiverhaslostthesignal.Ifthereceiverdoes
notlosethesignaluntilyouareatleast90m
awayfromit,itpassesthequickrangecheck.
RigorousRangeChecking
Yourlocalenvironmentcanaffecttherangeof
thereceiver,soquickrangecheckingmaynot
reflecttheactualrangecorrectly.Ifyoususpect
rangeproblems,performarigorousrangecheck.
1. Placethereceiveronanon‐metallicsurface
(forexample,awoodenbench)whichisat
least2feet(60cm)offtheground.
2. Fullyextendtheantennaofthereceiverand
fixitvertically.Don’tletittouchtheground.
3. Connectoneservotochannel1.
4. Fullyextendtheantennaofthetransmitter.
5. Turnonthetransmitterandthenturnonthe
receiver.
6. Walkawayfromthereceiverwhilemoving
thetransmitterstickscontinuously.Ask
someonewatchtheservoandnoteanyloss
ofcontrol.
Usemethod
I．NormalWorkingState:
TurnontransmitterandadjustittoPPM
mode.Whenelectrifythereceiver,theLEDwill
blink2times.Thenifitreceivescorrectsignal,
theLEDwillbelighteningandworknormally;if
LEDwentout,itmeansthetransmitterdonot
receivecorrectsignal.
Note:1Thisreceiverhasthefeatureof
memory,pleaseelectrifythereceiveragainif
changeanothertransmitter.
2Whenchangecrystalofdifferent
frequency,pleaselockupnewtransmitting
frequency.


II．MethodofSearchingRP4S1Transmitting
Frequency:

1,Pullouttheaerialoftransmitter,then
turnonthetransmitterandadjustittoPPM
mode.Donotspreadtheaerialofreceiver,and
keepthetransmitterbe1mfarawayfromthe
receiver,alsotomakesurethereisnoworking
transmitterwithin10maround.
2,Electrifythereceiver,aftertheLEDblink2
times,ifLEDkeepsbelightening,itprovesthat
thefrequencyofreceiverandtransmitteris
coherent.IfLEDwentout,itmeansthereare
differentfrequenciesofreceiverandtransmitter,
orthetransmitterdoesnotreceivecorrectsignal.
Soitneedstosetupworkingfrequencyof
receiver.
3,Pressthefrequencyenactmentbuttonof
RP4S1,waitfor2secondsandunlockit,then
repeattheactionwithin1second.IftheLED
blinks,itprovesitissearchingtransmittingsignal.
Stillwaitfor2to3seconds,iffinishessettingup,
theLEDwillbelightening;ifnot,pleasecheckup
thetransmitter.
Caution:Therangedependsonthepower
ofthetransmitter,souseafreshlycharged
transmitterbattery.Rangecheckingmust
bedoneinanopenfieldtoavoid
environmentalinterference.Notethatthe
rangeintheairwillbelongerthanonthe
ground.
ConnectionDiagram


