VHF FM Portable Transceiver with Keypad (non-EU use)  



Key Features 


Frequency Coverage: 136-174 MHz

200 Memories, with alpha-tagging

5.5 Watts RF Output from Standard Li-Ion Battery

Backlit 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 


Antenna Yes

Battery Yes, KNB-63L Li-Ion

Belt Clip Yes, KBH-18

Charger Yes, KSC-35S

Instruction Manual Yes, English, Spanish & French


Amateur Radio General Features 


13-Segment Back-lit LCD Display Yes

1750 Hz Tone Burst Function. Yes

Antenna Socket SMA

Auto Power Off Yes

Auto Repeater Offset Yes

Battery Capacity Indicator Yes, (Functions when in transmit)

Battery Saver Function Yes

Beat Shift Function Yes

Busy Channel Lock-out Yes

CTCSS Encoder/Decoder Yes

DCS Encoder/Decoder Yes, 104 Tones with Tone Scan function

Direct Frequency Entry Yes

DTMF Memory Yes, 16 memories of 16 digits each

Firmware Upgradable Yes

High-Quality Front Speaker Yes

Illuminated Front Panel Keys Yes

Internal VOX Yes

Key Lock Yes

Memory Channel Lock-out Yes

Memory Channels 208 Channels

Memory Channels with Alpha-tagging 200 Memory Channels

Multiple Scan Functions Yes

PC Programmable Memories Yes

Power-On Message Yes

Programmable Function Key Yes

Time-Out Timer Yes

Tone Alert Function Yes, Bell tone

Wide/Narrow Deviation Selection Yes

Wired Cloning facility Yes


Amateur Portable Specification 


RF Output Power (approx.) - High 5.5 W

RF Output Power (approx.) - Mid 2 W

RF Output Power (approx.) - Low 1 W

Frequency Range - RX - VHF 136 - 174 MHz

Frequency Range - TX - VHF 136 - 174 MHz

Antenna Impedance - 50 Ohm Yes

Audio Output Power More than 400 mW (10% distortion)

Battery Life With KNB-63L: 

approx. 6 hours at hi-power 

- 10-10-80 duty cycle

Frequency Stability - TX ± 2.5 ppm

Microphone Impedance 2 kOhm

Modes - F2D, F3E (FM) Yes

Operating Temperature Range -20 °C to +60 °C with standard battery

Power Requirement (nominal) - Battery DC 6 to 9 V

Receiver Circuitry - Double Super Heterodyne Yes

Receiver Intermediate Frequency - 1st IF 38.85 MHz

Receiver Intermediate Frequency - 2nd IF 450 kHz

Receiver Selectivity (-6 dB) More than 10 kHz

Receiver Sensitivity Less than 0.16 µV for 12 dB SINAD

Receiver Squelch Sensitivity Less than 0.13 µV

Transmitter Maximum Frequency Deviation - FM less than ± 5 kHz

Transmitter Modulation Distortion Less than 5% (300 Hz to 3 kHz)

Transmitter Modulation Mode - Reactance Modulation Yes

Dimensions W x H x D = 54 x 111.7 x 25.3 mm (with KNB-63L, projections not included)

Weight (with battery) 210 g with KNB-63L


Applicable Standards 


IP54 Yes

MIL-STD 810 C/D/E/F/G Yes

TH-K20A

  • Product Code: TH-K20A
  • Availability: In Stock

Tags: Amateur, handhelds