User Manual

JJ604
16
AddingFrSkytoaSpektrumDX8
16
2. Boostthevoltage.
AllweneedisamethodtoboosttheNiMHpacktoasteady6V.Unfortunatelythe
6VBECsweuseformodelswon’tworkastheyareallvoltagereducersandwillnot
outputavoltagehigherthanthein put.Asimilarcircuitcan
beusedasavoltage
boosterthoughandtheyaresoldasUSB‐>6Vconverterswhichhaveadequate
currentcapacityof300mAormore.
http://usb.brando.com/usb‐to‐6v‐volt...2c042d015.html
Evenmoreusefulistheso‐calledSolarBoostPowerConvertermodulewhichwill
produceupto9Vfrom0.9‐6Vinatseveral100mA.Perfect.At$3.61deliveredI
haveorderedacoupletotryout.Howevertheywillrequiremodificationtoremove
theUSBconnectorandmaywell
havenoiseissues.Iamnotkeenonputtinga
cheapswitch‐moderegulatorinsidemytransmitter.
http://www.goodluckbuy.com/dc‐dc‐sol...‐module‐1.html
3. AddanadditionalbatterytoruntheFrS kymod ule.
ThisistheapproachadoptedbytheverysuccessfulFlyZoneTacticTx‐Readysystem
tomakeitsimpletoattachtheirmoduletoaDX8.Worksfinefortheirlowdrain
systemusingasmallLiFe200mAhbatterybutin
myopinionbecomesaclumsy
solutionwiththebiggerbatteryneededforthemuchhigherdrainFrSkysystem.
Youalsohavenomonitoringofthestateofchargeoftheadditionalbattery,which
isnowrunningeverything.