SYS: ONLINE|UTC --:--:--|BAND: 2 m
SWR: 1.2PWR: 100WQTH: EN52
Transceivers & Antennas

VHF/UHF Handheld

A pocket radio for local contacts, repeaters and public-service work.

HIGH VOLTAGE — DISCONNECT BEFORE SERVICING. Antennas, feedlines and power supplies can hold dangerous voltages and carry RF at full transmitter power.
VHF/UHF Handheld engineering reference drawing
Specification summary
Bands144-148 MHz (2 m) and 430-450 MHz (70 cm), region dependent
ModesFM narrow, plus digital voice modes on many models
Power5 W typical, with 0.5-2 W low settings for battery economy
SensitivityAround 0.2 uV for 12 dB SINAD
BatteryLi-ion pack, 6-12 hours at low power with 5:5:90 duty
AntennaSMA or BNC, supplied whip is a compromise design
InterfacesSome models offer APRS and GPS
Stage: Setup
f: 144-148 MHzf: 430-450 MHzP: 5 WZ: 50 ohm

Overview

A handheld covers the 2 metre and 70 centimetre bands, where contacts are normally local and made through a repeater or directly between two stations in sight of each other. It is the radio most new operators buy first because it is inexpensive, self-contained and needs no antenna installation.

The limitation is physics rather than the radio. At these frequencies signals travel almost entirely by line of sight, so range depends far more on antenna height and the terrain between the two stations than on transmit power. A handheld on a rooftop antenna will routinely outperform the same handheld inside a building.

Bands and modes

Band coverage

2 m70 cm

Modes

FMDMRD-STARC4FMAPRS

Safety note

Handhelds are usually low power, but never transmit with the antenna close to your face or body. Hold the radio so the antenna is at least a few centimetres from your head, and never key a handheld with no antenna fitted.

Using it well

  • Programme repeater offsets and tones before you travel, not while driving.
  • Charge Li-ion packs fully before storage and never store them flat.
  • Fit a better antenna before buying a bigger battery — height and gain beat power.
  • Use the lowest power setting that holds the contact to extend battery life.
Related

References that go with this one

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