Dobrý den dne 20.9. jsem vám posílal dotaz ohledně nesrovnalostí mezi fotografiemi prezentujícími výrobek a skutečností. Odpověď experta Alzy ze dne 23.9 má argumentační úroveň asijského trhovce. Počet direktorů antény typu Yagi má přímý vliv na zisk, směrovost antény a současně potlačení nežádoucích signálů. Je - li inzerce doložena fotografií včetně uvedení typu výrobku a jeho ceny, je nutno vlastnosti, které přímo ovlivňují funkci výrobku dodržet. Jinak se jedná o klamání zákazníka. Pokusím se o přirovnání - Váš zaměstnavatel Alza vám pošle E-mail, ve kterém uvádí, že za svou péči o zákazníky získáváte odměnu 5 000,- kč, na bankovním účtě se vám objeví ale 50,- kč. Na váš dotaz ohledně nesrovnalosti a doložený E-mailem dostanete odpověď, cituji " ....obrázky jsou pouze informačního charakteru ". Dotaz zní - jak se liší zisk a směrová charakteristika inzerované 9 až 10 prvkové antény z propagačních snímků od vlastností 5 prvkové antény, dodávané ve skutečnosti. Tabulku prosím
Tesla GSM Amplifier ST-900 A
Tesla GSM Amplifier ST-900 A
The Tesla ST-900 A GSM Signal Booster/Repeater is the ideal solution for homes, offices or holiday homes that struggle with a weak or unstable mobile signal. It boasts an easy installation; simply connect the device to the outdoor antenna, where it will pick up the available signal and pass it on for further processing. The signal is then distributed to the surrounding area at a quality corresponding to the reception on the outdoor antenna. The device is designed to work seamlessly with mobile networks in the Czech Republic and provides two-way voice communication. It operates in the 900MHz frequency band. It does not support voice calls over data services (VoLTE). It provides coverage of up to 500m².
Key features of the Tesla ST-900 A booster
- The Tesla ST-900 A GSM Signal Booster/Repeater for homes, offices or holiday homes that struggle with a weak or unstable mobile signal
- Easy installation
- The device is designed to work seamlessly with mobile networks in the Czech Republic
- Provides two-way voice communication
- Operates in the 900MHz frequency band
- Does not support voice calls over data services (VoLTE)
- Coverage of up to 500m²
- The Tesla booster can be easily mounted on a wall
- CE and RoHS certified
- Automatic Gain Control (AGC) protects the transmission and the BTS network
- Stand-by mode is ready to save energy when idle
- The intelligent AI function adapts performance to current conditions
- Device status and operation indicators
Tesla booster with a range of features
The Tesla booster can be easily mounted on a wall and has a pleasingly minimal size. It is CE and RoHS certified and stands out for its energy-efficient operation. Automatic Gain Control (AGC) protects the transmission and the BTS network. Stand-by mode is ready to save energy when idle. The intelligent AI function adapts performance to current conditions. It also includes device status and operation indicators.
Technical parameters:
Frequency range: Uplink GSM: 890–915MHz, downlink GSM: 935–960MHz
Gain: Uplink: 65dB ±3dB, downlink: Gp 70dB ±3dB
Maximum output power: Uplink: 18dBm ±3dBm, downlink: 18dBm ±3dBm
Transmitted power: 27dBm
Isolation: >70dB
Impedance: 50 Ohm (N connector)
Insertion loss: -3dB
Noise figure: 4dB
Response time: 0.5µs
Power supply: AC 110/230V (AC/DC adapter 5V DC)
Power consumption: 12.5W
Ingress protection: IP40
Operating humidity: <90%
Operating temperature: -10°C to +55°C
Package contents:
Main unit - TESLA GSM-01 repeater
Outdoor receiving antenna
Indoor sector antenna
Coaxial cable from antenna to booster
Bracket for mounting on a mast (diameter 50mm)
Installation manual
Notice:
GSM/LTE signal repeaters can be operated in the Czech Republic only in accordance with the general authorisation of the Czech Telecommunication Office No. VO-R/24/08.2023-6. The operation of the device is possible only in compliance with the valid legislation, technical conditions and without causing interference to mobile networks. The availability of a 2G signal for amplification in your location can be roughly verified on the maps of individual operators. Please also verify that your operator works on the 900MHz frequency in your location.
Specifications
Usage and features
Gear
Advanced parameters
Dimensions
Colour
TESLA Electronics LTD, org. složka, Hybešova 255/17, 602 00 Brno - Staré Brno, Česko, [email protected]
Specifications can be changed without notice. Images are for illustrative purposes only.
