United Kingdom & EMEA

  • TH-K40E

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UHF FM Portable Transceiver with Keypad



TH-K20/K40 Versions A/E



Discontinued model


Key Features

Frequency Coverage: 430-440 MHz TX, 400-470 MHz RX
200 Memories, with alpha-tagging

5 Watts RF Output from Standard Li-Ion Battery
Back-Lit Keypad
Large LCD Display
Rugged, Compact Design to IP54 and MIL-STD 810G
Built-In VOX
Wide/Narrow Channel Deviation
Multiple Scanning functions
Free Windows Memory Management software

Supplied With

BatteryYes, KNB-63L Li-Ion
Belt ClipYes, KBH-18
ChargerYes, KSC-35S
Instruction ManualYes, English, French, Spanish, Italian, German, Dutch and Turkish

Amateur Radio General Features

13-Segment Back-lit LCD DisplayYes
1750 Hz Tone Burst Function.Yes
Antenna SocketSMA
Auto Power OffYes
Auto Repeater OffsetYes
Battery Capacity IndicatorYes, (Functions when in transmit)
Battery Saver FunctionYes
Beat Shift FunctionYes
Busy Channel Lock-outYes
Channel Display ModeYes
CTCSS Encoder/DecoderYes
DCS Encoder/DecoderYes, 104 Tones with Tone Scan function
Direct Frequency EntryYes
DTMF MemoryYes, 16 memories of 16 digits each
Electronic Serial NumberYes
Firmware UpgradableYes
High-Quality Front SpeakerYes
Illuminated Front Panel KeysYes
Internal VOXYes
Key BeepYes - adjustable + OFF
Key LockYes
Memory Channel Lock-outYes
Memory Channels208 Channels
Memory Channels with Alpha-tagging200 Memory Channels
Menu System for individual set-upYes
Monitor FunctionYes
Multiple Scan FunctionsYes
PC Programmable MemoriesYes
Power-On MessageYes
Programmable Function KeyYes
Reverse Repeater CheckerYes
Time-Out TimerYes
Tone Alert FunctionYes, Bell tone
Wide/Narrow Deviation SelectionYes
Wired Cloning facilityYes

Amateur Portable Specification

RF Output Power (approx.) - High5 W
RF Output Power (approx.) - Mid2 W
RF Output Power (approx.) - Low1 W
Frequency Range - RX - UHF400 - 470 MHz
Frequency Range - TX - UHF430 - 440 MHz
Antenna Impedance - 50 OhmYes
Audio Output PowerMore than 400 mW (10% distortion)
Battery LifeWith KNB-63L:
approx. 6 hours at hi-power
- 10-10-80 duty cycle
Frequency Stability - TX± 2.5 ppm
Microphone Impedance2 kOhm
Modes - F2D, F3E (FM)Yes
Operating Temperature Range-20 °C to +60 °C with standard battery
Power Requirement (nominal) - BatteryDC 6 to 9 V
Receiver Circuitry - Double Super HeterodyneYes
Receiver Intermediate Frequency - 1st IF38.85 MHz
Receiver Intermediate Frequency - 2nd IF450 kHz
Receiver Selectivity (-6 dB)More than 10 kHz
Receiver SensitivityLess than 0.18 µV for 12 dB SINAD
Receiver Squelch SensitivityLess than 0.13 µV
Transmitter Maximum Frequency Deviation - FMless than ± 5 kHz
Transmitter Modulation DistortionLess than 5% (300 Hz to 3 kHz)
Transmitter Modulation Mode - Reactance ModulationYes
DimensionsW x H x D = 54 x 111.7 x 25.3 mm (with KNB-63L, projections not included)
Weight210 gr (with standard battery, antenna and belt clip)

Applicable Standards