Kenwood TH-K20A User Manual download pdf (Page 2)

Direct Function Keys

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 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.

Internal VOX

The TH-K20A 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.

PC Programmable with MCP-5A

By simply connecting the TH-K20A 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.

Backlit LCD and Keypad

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.

CTCSS & DCS Encoder/Decoder + Cross Tone Capability

Thanks to the built-in CTCSS (Continuous Tone Coded Squelch System) and

DCS (Digital Code Squelch) encoder/decoder, the TH-K20A can handle 42

CTCSS sub-tone frequencies plus 104 DCS codes. And one can set separate TX

and RX signaling types so as to access a repeater that uses different encode/

decode signaling.

Tone Alert (Bell)

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.

CA315K-E-2

Other Features

▲

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

▲

1,750 Hz Tone Burst

▲

Direct Keypad Frequency Entry

▲

DTMF Autodial Memories (16ch, up to 16 digits)

▲

Battery Capacity Indicator (on transmit)

▲

Electronic Serial Number

Specifications

TH-K20A

GENERAL

Frequency Range TX

144 - 148 MHz

136 - 174 MHz

Mode F3E, F2D

Antenna Impedance 50 Ω

Operation Temperature Range -4 °F ~ +140 °F (-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)

with KNB-63L

with BT-16

High / Mid / Low

6 / 8.5 / 10.5 Hours

6 / 8 / 10 Hours

Dimensions

(W x H x D),

Projections not included

Radio Only

with KNB-63L

2.13 x 4.40 x 0.57 in

(54 x 111.7 x 14.4 mm )

2.13 x 4.40 x 1.00 in

(54 x 111.7 x 25.3 mm )

Weight Radio Only

with KNB-63L

approx. 4.86 oz (138 g)

approx. 7.40 oz ( 210 g)

TRANSMITTER

RF Power Output High

with BT-16

Mid

Low

5.5 W

approx.3.5 W

2 W

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

Squelch Sensitivity Less than 0.13 µV

Selectivity -6 dB

-50 dB

More than 10 kHz

Less than 28 kHz

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.

Measurements made per TIA/EIA 603 and specifications shown are typical.

Specifications are subject to change without notice, due to advancements in technology.

●

MIL-STD810 C/D/E/F/G: Low Pressure, High Temperature, Low Temperature,

Temperature Shock, Solar Radiation, Rain, Humidity, Salt Fog, Dust, Vibration, and Shock

●

International Protection Standard: IP54

*To meet these standards, the 2-pin connector cover has to be connected; the AAA battery case does not meet

the IP54 rating.

Optional Accessories

●

KNB-63L

Li-ion Battery (1,130 mAh)

●

SMC-32

Speaker Microphone

●

KHS-26

Clip Microphone with

Earphone

●

MCP-5A

Memory Control Software (ver.1.00 or later)

(available free for downloading from:

http //www.kenwood.com/i/products/info/amateur/software_download.html)

●

SMC-33

Remote Control

Speaker Microphone

●

KHS-22

Headset

●

PG-4Y

PC Interface Cable

●

SMC-34

Speaker Mic. w/

3-Function Key &

Vol Control

Not all accessories are available in all markets. For availability, contact your nearest dealer.

Battery case transmission output will decrease as time progresses. We recommend using low

power when using the battery case.

●

KSC-35S

Rapid Charger

(100 V - 240 V)

●

BT-16

Battery Case (6AAA)

Applicable MIL-STD & IP Standards*

1 2

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