TM-431电器原理图

2.SPECIFICATIONS AND ACCESSORIES2-1.SPECIFICATIONSSpecificationsModelsTM-231ATM-231ETM-431A(U.S.A.version)TM-431A/431ETM-531AFrequency rangeTM-531E[MHz]144t0148144t0146Mode438to450430to4401240t01300Antenna impedanceF3E (FM)Power requirements500Ground13.8VDC±15%(11.7to15.8)Frequency stabilityNegativeL0 ss than±10ppmTransmit modeLess than±3ppmCurrent drainLess than 11 AReceiver mode with no signalLess than 9.5 ALess than 5.5 AOperating temperatureLess than 0.6 ADimensions (W×HXD)-200Cto+600C(-4Fto+1400F日(Projection included)(mm]140×40×160(5-1/2"×1-37/64×6-19/64)Weight(141×42×171(59/16"×1-21/32"×6-47/64)》(kglHI1.22.65bs)50WOutput power*MID35W10w10WLOW10WApprox.5 WModulationApprox.5 W1WSpurious radiationReactance modulationMaximum frequency deviationLess than -60 dBLess than -50 dBAudio distortion (at 60%modulation)±5kHzMicrophone impedanceLess than 3%(300 to 3000 Hz)Circuitry500to6000Intermediate frequency1st/2ndDouble conversion superheterodyne10.7MH2/455kH30.825MHz/455kHz59.7 MHz/455 kHz2Sensitivity (12 dB SINAD)Selectivity-6 dBLess than 0.16 V-60dBMore than 12 kHzSquelch sensitivityLess than24kH位Less than 36 kHzOutput (5%distortion)Less than 0.1 uVExternal speaker impedanceMore than 2 W across 8 D loads80Notes:1.Circuit and ratings are subject to change without notice due to advancements in technology.2..Recommended duty cycle:1 minute Transmit,3 minutes Reception.