Kenwood TS-990S Service Manual
Also see for SP-990: Instruction manual
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TS-990S243ReceiverCircuit typeMain Sub *2 Sub *3DoublesuperheterodyneDoublesuperheterodyneTriplesuperheterodyneIntermediate frequency1st IF 8.248MHz 11.374MHz 73.095MHz2nd IF (FM) 24kHz/ (455kHz) 24kHz 10.695MHz3rd IF (FM) − − 24kHz/ (455kHz)Sensitivity (typ.)SSB/CW/FSK/PSK(S/N 10dB)0.5μV (0.13~0.522MHz)4μV (0.522~1.705MHz)0.2μV (1.705~24.5MHz)0.13μV (24.5~30MHz)0.13μV (50~54MHz)AM(S/N 10dB)6.3μV (0.13~0.522MHz)32μV (0.522~1.705MHz)2μV (1.705~24.5MHz)1.3μV (24.5~30MHz)1.3μV (50~54MHz)FM(12dB SINAD)0.22μV (28~30MHz)0.22μV (50~54MHz)Image rejection ratio (50MHz) 70dB (60dB) or moreIF rejection ratio 70dB or moreSelectivitySSB(LO: 200/ HI: 2800Hz)2.4kHz or more (–6dB)4.4kHz or less (–60dB)CW/FSK/PSK(WIDTH: 500Hz)500Hz or more (–6dB)1.2kHz or less (–60dB)AM(LO: 100/ HI: 3000Hz)6.0kHz or more (–6dB)12.0kHz or less (–50dB)FM 12.0kHz or more (–6dB)25.0kHz or less (–50dB)RIT variable range ±9.999kHzNotch fi lter attenuation 60dB or more (Auto), 70dB or more (Manual)Beat cancel attenuation 40dB or moreAudio output 1.5W or more (8)Audio output impedance 8*1 MAIN BAND: Spec. guaranteed in amateur band 160 m through 6 m*2 In 160 m/ 80 m/ 40 m/ 20 m/ 15 m amateur bands, IF band width 2.7kHz or less (SSB/CW/FSK/PSK)*3 Except in above *2*4 60m band: Refer to applicable amateur radio regulations to your country (E type only).Note: Specifi cations are subject to change without notice due to advancements in technology.SPECIFICATIONS |
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