Radiasun is the leading manufacturer of cable and satellite meters in the world. Radiasun delivers the most satisfying products and services to the customers all over the world, with our own brands name, and also provides OEM and ODM for the most famous brands in the field.

High performance, compact palm OTDR


AV6416 OTDR - 28/26/24dB high dynamic range(1310nm/1550nm/1490nm)


AV6416 Palm-OTDR is new Optical Time Domain Reflectometer with integrated VFL(visual fault locator).

AV6416 Palm-OTDR feature handheld, compact, lightweight, long battery life and easy-to-use.

It supports auto test, manual averaging, manual real time test mode. Besides, the AV6416 Palm-OTDR can save and transfer the measurement data to PC.

The AV6416 Palm-OTDR has become the indispensable and ideal tools for fiber

AV6416 OTDR Key features

• Test can be started by pressing a single key.

• 1.6m extra-short event dead zone
• Advanced anti-reflection Touchsecreen color LCD, screen optimized for outdoor use.
• USB ports(host and client): transfer and print data trace.
• Visual fault locator to inspect fibers.
• Lithium rechargeable battery support over 10 hours.
• Memory for 500 OTDR traces and possible data transfer to a computer.
• Support auto test, manual averaging, manual real time test mode.
• Online help function.
• Windows CE operating system, multi-funtional & Scalable




Handheld Optical multimeter is for the installation, operation and maintenance of a fiber optic network designed accurate, durable and portable instrumentation. A compact shape, automatic shutdown feature, wide range of optical power measurement, accurate measurement accuracy, and user self-calibration function and general interface design, while the linear index (mW) and nonlinear index (dBm) display on the same screen.

Stable optical handheld multimeter can be customized to provide 1 to 4 wavelength stability of the output, not only can provide 650nm visible red light, single-mode fiber can be measured to provide dual-wavelength 1310nm and 1550nm laser output, or provide 850/1300 / 1310/1550nm four wavelength laser output, fiber-optic project is the ideal test instrument.

AV6416 OTDR Features

Self calibration by user himself

Rechargeable lithium battery used to reduce user costs
Linear (mW) and nonlinear index (dBm) display on the same screen
Can set the automatic shut down function
High stability multi-wavelength single-(multi) mode laser output, CW mode or modulated mode
Color LCD display
Data can be uploaded to PC

AV6416 OTDR Specifications

Power meter parts

Measurement range -70~+3 or -50~+26
Type of probe InGaAs
Range of wave length 800~1700
Uncertainty ±5%
Standard wave length (nm) 850、980、1300、1310、1490、1550
Resolution Linear indication: 0.1% Logarithmic indication: 0.01dBm
Connector General setupuration:FC/PC SC/PC
Other setupuration LC/FC/SC/ST Many common interface

Light source parts

Model General setupurations 3 in 1 setupurations Other
Working wavelength (nm) 1310/1550 1310/1490 650 red light source D:850/1310/1550
Light-emitting device FP-LD
Optical output power (dBm) -7/-7 -7/-7 Red light source:1mW 0DB-7DB
Modulation CW/270/1K/2K
Type of optical fiber SM,MM
Connector FC/PC
Multi-mode output power ≥–20 dBm


Resolution Linear indication: 0.1% Logarithmic indication: 0.01dBm
Working temperature (℃) -16~+60
Storage temperature (℃) -25~+70
Auto power-off time (min) 10
Continuous working hours (h) more then 15 hours
Display 2.4 TFT color LED with backlight
Dimensions (mm) 190×100×48
Power supply Rechargeable lithium battery
Weight (g) 280



1. Don’t watch the output port with eyes while it is running, the laser will hurt your eyes

2. If you are not going to use the tester for long time, cover the dust-proof cap immediately to keep the end clean, don’t expose it in air for long time, otherwise dust may gather polluting the output end.

3. After the stabilized light source works for a time, dirt or dust may gather at output end reducing output optical power, if so, user can gently wipe the surface using cotton swab dipped with alcohol, then remove the contaminants with dry cotton swab. If end still look dirty after doing so, please contact us

4. For any other fault, please immediately contact our technician, don’t open the cabinet of the device to repair it by yourself, otherwise more serious problems may occur. We will not repair any product that have been disassembled by user himself