Kenwood TK-3170 User Manual

TK-3170/3173
30
Ref. No. Use / Function Operation / Condition
Q23 Transistor AF amplifier DC supply control switch
Q24 FET AF amplifier DC supply switch
Q25,26 FET MIC ALC
Q27 Transistor AF mute control switch
Q28 FET AF mute switch
Q29 FET Logic inverter
Q30 FET MIC mute switch
Q31,32 Transistor Audio processor clock shift switch
Q33 FET TX HSD side tone mute
Q34 FET Ext. alert input ATT switch
Q35 FET AF mute switch
Q501 Transistor F-IN amplifier
Q502 FET TX VCO oscillator
Q503 FET RX VCO oscillator
Q504 FET TX/RX VCO DC switch
Q505 Transistor Ripple filter
Q506 Transistor RF buffer amplifier
Q507 Transistor RF amplifier (Common)
Q601 FET RF amplifier
Q602 FET Pre-drive amplifier
Q603 FET TX drive amplifier
Q604 FET RF final amplifier
Q605 Transistor APC voltage switch
Q606 FET APC voltage switch
Q607 Transistor APC DC switch
Q608 Transistor APC mute switch
Q609 FET APC mute switch
Q701 Transistor 2nd local tripler
Q702 Transistor W/N switch / RX
Q703 Transistor IF amplifier
Q704 FET Mixer
Q705 FET RF amplifier
D1 Diode 5M protect
D2 LED TX/RX indicator
D4 Diode Back light current control
D5 LED LCD back light
D7 LED LCD back light
D8,9 LED 10 key back light
Ref. No. Use / Function Operation / Condition
D12,13 LED 10 key back light
D14~16 Diode Radio state detector
D17 Diode RX DET mute control voltage
discharge
D24~27 Diode Key input detect
D28 Diode AF reference voltage bias supply
D29 Diode VOX level detector
D30,31 Diode MIC input level detector
D32 Diode VOX amplifier gain limiter
D33 Varistor Surge absorber
D501 Diode Fast lock up diode
D502,503 Diode F-IN filter shift switch
D505 Variable Frequency control / TX VCO
capacitance diode
D507 Variable Frequency control / TX VCO
capacitance diode
D509 Variable Frequency control / RX VCO
capacitance diode
D511 Variable Frequency control / RX VCO
capacitance diode
D513 Variable TX VCO modulator
capacitance diode
D514 Diode Ripple filter stabilization diode
D515 Diode RX local switch
D516 Diode TX RF switch
D517 Diode Fast lock up diode
D601 Zener diode APC voltage limiter
D604~606 Diode ANT switch
D608 Diode ANT switch
D701,702 Diode Ceramic filter W/N switch
D703~708 Variable RX BPF tuning
capacitance diode
D901 Diode Voltage limiter
TH501 Thermistor TX temperature protect
TH701,702 Thermistor Temperature compensation for ASQL
F901 Fuse Fuse : 2.5A/32V/1608 size
(F53-0324-05)
COMPONENTS DESCRIPTION

Kenwood TK-3170 Specifications

General Specifications

frequency range	450~490MHz (K, K4) 440~480MHz (M) 400~430MHz (K3, K6, M3)
number of channels	Max. 128 per radio
zone channels	Max. 128 per zone
trunking GID	Max. 250 per zone
channel spacing (wide)	25kHz
channel spacing (narrow)	12.5kHz
battery voltage	7.5V DC ± 20%
operating temperature range	–22°F~+140°F (–30°C~+60°C)
frequency stability	± 0.00025% (–22°F~+140°F)
antenna impedance	50Ω
channel frequency spread (K,K4,M)	40MHz
channel frequency spread (K3,K6,M3)	30MHz

Battery Life

KNB-24L (1400mAh)	9 hours
KNB-25A (1200mAh)	8 hours
KNB-26N (2000mAh)	12 hours
KNB-35L (1950mAh)	11 hours

Receiver

sensitivity (wide)	0.25µV
sensitivity (narrow)	0.28µV
selectivity (wide)	70dB
selectivity (narrow)	65dB
intermodulation distortion (wide)	65dB
intermodulation distortion (narrow)	60dB
spurious response	65dB
audio output	500mW with less than 10% distortion

Transmitter

RF power output (HI)	4W
RF power output (LO)	1W
spurious response	70dB
modulation (wide)	16K0F3E
modulation (narrow)	11K0F3E
FM hum & noise (wide)	45dB
FM hum & noise (narrow)	43dB
audio distortion	Less than 5%

Weight and Dimensions

dimensions with KNB-24L or 35L battery	2-7/32 x 4-9/32 x 1-1/4 in. (56 x 109 x 31.7 mm)
dimensions with KNB-25A or 26N battery	2-7/32 x 4-9/32 x 1-1/2 in. (56 x 109 x 37.9 mm)
weight (net)	12.0 oz. (340 g) with battery, antenna, and beltclip