Description
Overview
GAOTek handheld fibre optical variable attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, therefore, this device can be used in the digital system of communication devices (such as: PHD, SDH) and in the system of adopting analogue modulation (CATV).
Features
- Stepwise attenuation by circumgyrated dial: 0.05 dB steps
- Displays dB and dBm attenuating values
- 10-minute auto-off function, activated/deactivated with keypad
- Memorizes attenuating value and step for system restoration
- Displays dB and dBm attenuating values
Technical Specifications
| Attenuating Wavelength Range | 1260 nm to 1650 nm |
| Fiber Model | 9 um or 125um SM |
| Optical Connector | FC or PC |
| Calibrated Wavelengths | 1310 nm or 1490 nm or 1550 nm or 1625 nm |
| Measurement Range | 2 dB to 60 dB |
| Resolution | 0.05 dB |
| Minimize Insertion Loss | <2.0 dB |
| Linearity | ±0.5 dB |
| Repeating | ±0.2 dB |
| Attenuating Accuracy | ±0.8 dB |
| Return Loss at Input or Output | >35 dB (typical value 40 dB) |
| Max Input | +20 dBm |
| Displaying Type | lattice 128 × 64 black and white, white background light |
| Rechargeable Batteries | 8.4 V |
| Power Supply Adaptor | 8.4 V |
| Operation Temperature | 32° F to 104° F (0 °C to 40 °C) |
| Operation Time | 40 hrs |
| Storage Temperature | 14° F to 140° F (-10 °C to 60 °C) |
| Humidity | 0% to 85% (non- condensation) |
| Dimensions | 7.09 in × 3.54 in × 1.43 in (180 mm × 90 mm × 36.5 mm) |
| Weight | 0.94 lb (427 g) |