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Kenwood TS-870S
Specifications

Return to  Kenwood TS-870

Discontinued HF Transceivers 

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GENERAL
Antenna Impedance 50 ohms (nominal)
Current Drain (approx.) 20.5 A (transmit), 2 A (standby)
Dimensions, projections not included (W x H x D) 13 x 4-3/4 x 13-1/8 in. (330 x 120 x334 mm)
Frequency Stability Within ±10 x 10-6 (±0.5 x 10-6 with SO-2)
Microphone Impedance 600 ohms
Mode A1A (CW), J3E (SSB), A3E (AMI), F3E (FM), F1D (FSK)
Operating Temperature 14° F - +122° F (-10° C - +50° C)
Power Requirement 13.8 V DC ±15%
Reciever Frequency Range 100 kHz - 30 MHz
Transmitter Frequency Range 160, 80, 40, 30, 20, 17, 15, 12, 10 meter bands
Weight (approx.) 25.35 lbs. (11.5 kg)
RECEIVER
Audio Output Impedence 8 ohms
Audio Output Power 1.5 W (8 ohms, 10% distortion)
Circuitry Quadruple Conversion Superheterodyne (SSB/CW/AM/FM/FSK)
Intermediate Frequency: 1st IF 73.05 MHz
Intermediate Frequency: 2nd IF 8.83 MHz
Intermediate Frequency: 3rd IF 455 kHz
Intermediate Frequency: 4th IF 11.3 kHz
Notch Filter Attenuation Greater than 40 db
RIT Variable Range ±9.99 kHz
Selectivity: AM (Lo:100; Hi: 4000) 9 kHz (-6 dB), 12 KHz (-60 dB)
Selectivity: CW (Width :200) 200 Hz (-6 dB), 450 Hz (-60 dB)
Selectivity: FM (Width: 14k) 14 kHz (-6 dB), 18 kHz (-60 dB)
Selectivity: FSK (Width: 500) 500 Hz (-6 dB), 1000 Hz (-60 dB)
Selectivity: SSB (Lo:300; Hi: 2600) 2300 Hz (-6 dB), 3300 Hz (-60 dB)
Sensitivity: AM (S+N/N 10 dB) Less than 2 µV (100 ~ 500 kHz),
Less than 31.6 µV (500 kHz ~ 1.705 MHz),
Less than 2 µV (1.705 ~ 24.5 MHz),
Less than 2 µV (24.5 ~ 28 MHz),
Less than 2 µV (28 ~ 30 MHz)
Sensitivity: FM (12 dB SINAD) Less than 0.25 µV (28 ~ 30 MHz)
Sensitivity: SSB/CW/FSK (S+N/N 10 dB) Less than 1 µV (100 ~ 500 kHz),
Less than 4 µV (500 kHz ~ 1.705 kHz),
Less than 0.2 µV (1.705 ~ 24.5 MHz),
Less than 0.13 µV (24.5 ~ 28 MHz),
Less than 0.13 µV (28 ~ 30 MHz)
Spurious Response: IF Rejection Greater than 80 dB (1.8 ~ 30 MHz)
Spurious Response: Image Ratio Greater than 80 DB (1.8 ~ 30 MHz)
Squelch Sensitivity: FM Less than 0.25 µV (28 ~ 30 MHz)
Squelch Sensitivity: SSB/CW/FSK/AM Less than 2 µV (100 ~ 500 kHz),
Less than 20 µV (500 kHz ~ 1.705 MHz),
Less than 2 µV (1.705 ~ 28 MHz),
Less than 2 µV (28 ~ 30 MHz)
TRANSMITTER
Antenna Tunable Range 20 ohms - 150 ohms
Carrier Suppression Greater than 50 dB
Maximum Frequency Deviation Less than ±5 kHz (wide);
Less than ±2.5 kHz (narrow)
Modulation: AM Low-power modulation
Modulation: FM Reactance modulation
Modulation: SSB Balanced modulation
RF Output Power SSB/CW/FM/FSK: 100 W; AM: 25 W
Spurious Response Less than -60 dB
Transmit Frequency Response 300 - 2600 Hz (-6 dB)
Unwanted Sideband Suppression Greater than 50 dB
XIT Variable Range ±9.99 kHz
  Specifications may be changed without notice.


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