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Light emitter for optical fiber with wavelength of 850 nm and 1300 nm. It is a compact and portable device, protected with a rubber case to prevent shock.
Specifications
- Wavelength of 850 nm and 1300 nm.
- Applicable to SM and MM fiber.
- Type of laser FD-LD.
- Typical output power: -7 dBm (single mode) and -9 dBm (multimode).
- Frequency modulation:CW, 270 Hz, 1 kHz and 2 kHz.
- Optical connector: FC/PC.
- Automatic auto-calibration function.
- Retro-illuminated LCD display for night viewing.
- Automatic shutdown in 10 minutes of non-use.
- It works with 3 batteries of type AA.
- Size: 200 x 90 x 50 mm.
- Supplied with padded carrying case, batteries and cleaning wands.
Brand
[!] Weights, sizes, colors and shapes are only approximate and may differ from those represented, although the functionality of the product never differ with those specified
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The dBm (sometimes also dBmW or decibel-milliwatt) is a unit of measurement of power expressed in decibels (dB) relative to one milliwatt (mW). It is used in radio networks, microwave and optical fiber as a convenient measure of absolute power because of their ability to express both very large and very small values ??in short form. It is distinct from dBW, which refers to one watt (mW 1,000). Typical values:
- 21 DBM-> 125 MW> Maximum output power for a mobile phone UMTS/3G (phone power class 4).
- 15 DBM-> 32 MW> Typical power transmission WiFi laptops.
- 0 DBM-> 1.0 mW = 1000 ?W-> Standard Bluetooth Class 3 coverage 1m.
- DBM- -10> 100 ?W-> Typically the maximum Potentiometeria that can be received on a wireless network (-10 to -30 dBm).
- -194 DBM-> 0.00004 AW-> thermal noise bandwidth of 1 Hz in outer space (4 kelvin).
Hz
One hertz is one cycle per second, meaning repeating cycle as an event. For example, hertz is applied physics measuring the number of times for a second wave (either acoustic or electromagnetic) is repeated or can be applied, among other uses, to ocean waves that reach the Beach vibrations per second or a solid. The quantity that measures the frequency hertz is called,in this regard, the inverse of the period. One hertz is an oscillation frequency of suffering a particle over a period of one second.
Types of batteries
Within the wide range of batteries on the market we can differentiate two large groups, disposable batteries and rechargeable batteries.
Disposable batteries are those that only allow a single use and when they are exhausted they can not be recharged. These batteries can store their energy for years.
Rechargeable batteries are those that can be recharged once exhausted. This type is losing charge when they are storedaccording to voltage. The most common we can find them of 1.2V and 3.7V
As a last point you have to take into account that lithium batteries, Lipo, Life etc. Due to its composition, specific loaders should be used.
