Kenwood TH-K20

kenwood TH K20

A powerful communications tool in every sense, KENWOOD’s new TH-K20A/K40A radio offers 5.5 watts of RF output to ensure reliable performance.

Numerous features ensure superb operating ease, yet it is small enough to fit comfortably in the palm. Both display and keypad are backlit for night-time use, and for added convenience everyday functions are pre-programmed to 11 keys with an additional PF key that can be assigned a custom function. Plus, the construction is rugged enough to stand up to the worst weather. Inside and out, the TH-K20A/K40A is fully equipped for clear communications — wherever and whenever needed.

: kenwood TH K20 Users will appreciate just how light (just 210g) and thin (54mm) this radio is. Yet there is no compromise on construction: it meets or exceeds the stringent IP54 dust and water intrusion standards as well as the MILSTD 810 C, D, E, F & G environmental standards, making it rugged enough for demanding outdoor use in bad weather.

: The TH-K20A/K40A has 200 memory channels – with a 6-digit Memory Name function to enable clear identification – plus 6 program scan memories, 1 call channel and 1 priority channel.

: kenwood TH K20 Another feature that sets the TH-K20A/K40A apart is sound: it benefits from the audio expertise for which KENWOOD is renowned. High sound pressure – which is not the same as volume – delivers a clarity that is unmistakable. Just listen once and you will appreciate what a difference it makes.

: kenwood TH K20 This radio is supplied with a rechargeable Lithium-ion battery plus a convenient cradle charger.

: kenwood TH K20 Everyday functions are pre-programmed to 11 of the 12 keys. The additional PF key can be assigned a custom function, making it possible to tailor the TH-K20A/K40A for optimum convenience. There is no need to use a menu: one key push provides direct access. And to prevent accidental operation, three types of key lock are provided.

: kenwood TH K20 The TH-K20A/K40A offers convenient hands-free operation when using an optional headset. The internal VOX (voice-operated transmission) circuitry provides automatic PTT and a 10-level (Off/1-9) sensitivity adjustment to suit different ambient noise levels. VOX delay time is also adjustable.

: kenwood TH K20 By simply connecting the TH-K20A/K40A to a computer running KENWOOD’s free MCP-5A software with the optional PG-4Y cable, one can easily manage dozens of memory channels and memory names. This is also a convenient way to modify or copy settings.

: Backlighting for the large 13-segment LCD display is a welcome feature when picking memory names or changing settings. Similarly, keypad backlighting facilitates operation in low-light situations.

: Thanks to the built-in CTCSS (Continuous Tone Coded Squelch System) and DCS (Digital Code Squelch) encoder/ decoder, the TH-K20A/K40A can handle 42 CTCSS sub-tone frequencies plus 104 DCS codes. And one can set separate TX and RX signalling types so as to access a repeater that uses different encode/decode signalling.

: When activated, this function will sound an audible alert and flash a bell symbol to indicate an incoming call. Both elapsed time and the number of missed calls are clearly displayed.

Power On Message
Time-out Timer
Priority Scan
Band Scan, Program Scan, MR Scan, CALL Scan, CTCSS Scan / DCS Scan
Wide/Narrow Channel Spacing •
Busy Channel Lockout
Key Lock Type Select
Battery Save
SMA Antenna Connector
Automatic Repeater Offset
1750 Hz Tone Access
Direct Keypad Frequency Entry
DTMF Autodial Memories (16ch, up to 16 digits)
Battery Capacity Indicator (on transmit)
Electronic Serial Number

: – Tone Alert (Bell)
– Cross Tone
– Weather CH Scan
– Firmware Upgradeable
– Key Lock Type Select

: – 5.5W RF Output for 144MHz
– 5.0W RF Output for 430MHz
– Power-On Message
– Direct Function Key
– Direct Frequency Entry
– Auto Repeater Offset
– 1750 Hz Tone Burst
– Time-Out Timer
– Battery Select (Li-ion / AAA Battery)
– Beat Shift
– Frequency Shift
– VOX Circuit included (Operation with Optional headset)
– Battery Capacity Indicator
– Wide / Narrow Deviation Selection (Per Channel)
– Busy Channel Lock-Out

kenwood TH K20

Specification

		TH-K20A	TH-K40A
GENERAL
Frequency Range	TX	136 – 174 MHz	400 – 470 MHz
Frequency Range	RX	136 – 174 MHz	400 – 470 MHz
Mode		F3E, F2D
Antenna Impedance		50 Ω
Operation Temperature Range		-20 °C ~ +60 °C
Operating Voltage		DC 6.0 ~ 9.0 V (Standard Voltage DC 7.4 V)
Frequency Stability		±2.5 ppm
Microphone Impedance		2 kΩ
Battery Life* (Figures approximate)		High / Mid / Low
	with KNB-63L	6 / 8.5 / 10.5 Hour
	with KNB-65L	8 / 11.5 / 14 Hours
	with BT-16	6 / 8 / 10 Hours
Dimensions (W x H x D), Projections not included	Radio Only with KNB-63L	54 x 111.7 x 14.4 mm 54 x 111.7 x 25.3 mm
Weight	Radio Only	approx. 138 g
Weight	with KNB-63L	approx. 210 g
TRANSMITTER
RF Power Output	High	5.5 W	5 W
	with BT-16	approx.3.5 W
	Mid	2 W
	Low	1 W
Modulation		Reactance modulation
Maximum Frequency Deviation		Within ±5 kHz
Moduration Distortion		Less than 5 % (300 Hz ~ 3 kHz)
RECEIVER
Circuitry		Double super heterodyne
Intermediate Frequency		1st IF: 38.85 MHz / 2nd IF: 450 kHz
Sensitivity (12dB SINAD)		Less than 0.16 μV	Less than 0.18 μV
Squelch Sensitivity		Less than 0.13 μV
Selectivity	-6 dB	More than 10 kHz
Selectivity	-50 dB	Audio Output More tha
Audio Output		More than 400 mW (8 Ω / 10 % distortion)

* Assuming a duty cycle of 6-second transmit, 6-second receive, 48-second standby
Specifications are guaranteed for amateur radio bands only. Specifications shown are typical.
Specifications are subject to change without notice, due to advancements in technology.

Applicable MIL-STD & IP

Standard	MIL 810C Methods/ Procedures	MIL 810D Methods/ Procedures	MIL 810E Methods/ Procedures	MIL 810F Methods/ Procedures	MIL 810G Methods/ Procedures
Low Pressure	500.1/Procedure I	500.2/Procedure I, II	500.3/Procedure I, II	500.4/Procedure I, II	500.5/Procedure I, II
High Temperature	501.1/Procedure I, II	501.2/Procedure I, II	501.3/Procedure I, II	501.4/Procedure I, II	501.5/Procedure I, II
Low Temperature	502.1/Procedure I	502.2/Procedure I, II	502.3/Procedure I, II	502.4/Procedure I, II	502.5/Procedure I, II
Temperature Shock	503.1/Procedure I	503.2/Procedure I	503.3/Procedure I	503.4/Procedure I, II	503.5/Procedure I
Solar Radiation	505.1/Procedure I	505.2/Procedure I	505.3/Procedure I	505.4/Procedure I	505.5/Procedure I
Rain	506.1/Procedure II	506.2/Procedure II	506.3/Procedure II	506.4/Procedure III	506.5/Procedure III
Humidity	507.1/Procedure I, II	507.2/Procedure II, III	507.3/Procedure II, III	507.4	507.5/Procedure II
Salt Fog	509.1/Procedure I	509.2/Procedure I	509.3/Procedure I	509.4	509.5
Dust	510.1/Procedure I	510.2/Procedure I	510.3/Procedure I	510.4/Procedure I, III	510.5/Procedure I
Vibration	514.2/Procedure VIII, X	514.3/Procedure I	514.4/Procedure I	514.5/Procedure I	514.6/Procedure I
Shock	516.2/Procedure I, II, V	516.3/Procedure I, IV	516.4/Procedure I, IV	516.5/Procedure I, IV	516.6/Procedure I, IV
International Protection Standard
Dust & Water Protection	IP54