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SECTION 3- Technical Specifications <br />Mobile Units <br />954 <br />System voltage <br />11 to 16 VDC, negative ground <br />Temperature ranges <br />-30 *C to +60 *C( -22 *F to +140 *F) <br />for full specified performance per LTA <br />Altitude <br />5 kr.i(16,500 ft) <br />humidity <br />95% RI1 at 50 *C (122 *I') <br />Duty Cycle <br />100L Receive', 20 £ Transi -Atter <br />Programming <br />PC, IBM or II3I --; Compatable <br />Microphone <br />Dynamic, low impedance, plug in <br />Channel capacity <br />46 units- 2channel expandable to,16 ch <br />6 units- 16 channel with dual pr;�'prity <br />scan <br />Channel resolution <br />multiples of. 12:5 .:: kIlz <br />Construction <br />rugged, die cast aluminum frame, fiberglas <br />epoxy circuit boards <br />Cooled squelch <br />33 EIA tones, 104 Digital codes programrial. <br />by channel <br />RECEIVER: <br />Frequcncy range <br />'440-470 Mllz <br />RF input irrpedence <br />50 ohms <br />Channel spacing <br />25, kIiz <br />sensitivity <br />(EIA 12 dB- SI1*.AD) <br />0.26uV <br />electivity (I;IA 2- Signpl) <br />-80 u;;rIt <br />Frequency stability ' <br />- /A- .00051 <br />l'odulatinn <br />-/+ 7 kllz <br />intermcCulation <br />-75 dB <br />Spurious rejection <br />-85 dP1 <br />Inage rejection <br />-85 dB <br />Hum & noise <br />-80 dB squelched <br />Audio response <br />Per I;IA RS -204 -C <br />Audio output <br />3 watts less than 5% ui,tortion <br />Frequency separation <br />20 mHz full performance <br />TRANSMITTER: <br />• <br />` frequency range <br />440 -470 mhz <br />Rated power output <br />25 watts <br />RF• output impedance <br />50 ohms <br />Conducted spurious & harmonic <br />-60 db <br />Frequency stability <br />-/+ .0005 � <br />Modulation deviation <br />0 to -/+ 5.0 k11z <br />Audio distortion <br />2% or less <br />Fhl Iloise <br />-50 dB <br />Audio response <br />Per EIA RS -152 -D <br />Frequency separation <br />20 nthz full performance <br />9 <br />