1. Introduzione
The SZBOX ST-5155 is a versatile and portable signal meter designed for the installation and verification of digital satellite, terrestrial, and cable television signals. This device supports DVB-S/S2/S2X, DVB-T/T2, and DVB-C standards, featuring H.264/H.265 (10-bit) decoding. It is an essential tool for professionals and enthusiasts alike, providing real-time signal analysis and display.
Key features include a 4.3-inch LCD screen, automatic AZ/EL angle calculation, loop search, LNB short-circuit protection, and a built-in rechargeable battery for extended use. This manual provides detailed instructions to help you effectively use your ST-5155 signal meter.
2. Prodotto finitoview

Figura 2.1: Davanti view of the ST-5155 Satellite Signal Meter, showing the 4.3-inch LCD screen, numeric keypad, navigation buttons, and function keys.

Figura 2.2: Lato view illustrating the various ports and connections of the ST-5155, including LNB IN, ANT IN, HDMI OUT, AV IN/OUT, USB port, DC 12V input/output, and a built-in torch.

Figura 2.3: The ST-5155 device shown with its standard accessories, including the power adapter, AV cables, USB cable, and carrying strap.
3. Configurazione e primo utilizzo
3.1 Ricarica del dispositivo
Before first use, ensure the ST-5155 is fully charged. Connect the provided 12V power adapter to the DC IN port on the device and plug it into a power outlet. The charging indicator will illuminate. A full charge typically takes approximately 3-4 hours and provides about 5 hours of operation.
3.2 Accensione iniziale
Premere e tenere premuto il tasto ENERGIA button located on the front panel to turn on the device. The 4.3-inch LCD screen will display the boot-up sequence.
3.3 Language and Regional Settings
Upon first power-on, you may be prompted to select your preferred language and region. Navigate using the arrow keys and confirm with the OK button. These settings can be adjusted later in the System Settings menu.
4. Istruzioni per l'uso
4.1 Misurazione del segnale satellitare (DVB-S/S2/S2X)
- Connect your LNB cable from the satellite dish to the Ingresso LNB port on the ST-5155. The device provides LNB power (13V/18V, IMax 350mA) and short-circuit protection.
- Premere il tasto SAB button to enter the Satellite Measurement mode.
- Select the desired satellite from the pre-stored list or add a new one. Use the arrow keys to navigate and OK per selezionare.
- Adjust LNB Frequency, Transponder, Symbol Rate, and Polarization as needed.
- Align your satellite dish while observing the signal strength and quality indicators on the screen. The device supports automatic AZ/EL angle calculation to assist with alignment.
- Once a signal is locked, the device will emit an audible tone (Dolby AC3 supported) and display real-time video (if available) and channel information.
- Utilizzare il SCANSIONE button to perform a channel scan (Auto, Blind, or Manual).
4.2 Misurazione del segnale terrestre (DVB-T/T2)
- Collegare il cavo dell'antenna terrestre al FORMICA IN port. The device provides ANT power (5V, 12V).
- Premere il tasto SISTEMA button and select DVB-T/T2 mode.
- Select the appropriate channel or frequency range.
- Regola l'antenna per ottenere la potenza e la qualità ottimali del segnale.
- Perform a channel scan to find available terrestrial channels.
4.3 Cable Signal Measurement (DVB-C)
- Connect your cable TV signal to the FORMICA IN porta.
- Premere il tasto SISTEMA button and select DVB-C mode.
- Enter the required parameters such as frequency, symbol rate, and QAM modulation.
- Monitor the signal quality and strength.
- Perform a channel scan to detect available cable channels.
4.4 Media Playback and System Functions
- Uscita HDMI/AV: Connect an HDMI cable to the Uscita HDMI port or AV cables to the AV OUT port to display the signal on an external monitor or TV.
- Funzioni USB: The USB 2.0 port can be used for software upgrades and media playback (e.g., video, audio, images) from a USB drive.
- Funzione torcia: Activate the built-in LED torch for illumination in dark environments.
- Impostazioni di sistema: Accedi al MENU and navigate to "System Settings" to adjust display, audio, time, and other device parameters.
5. Manutenzione
5.1 Pulizia
Pulisci il dispositivo con un panno morbido e asciutto. Non utilizzare detergenti liquidi o materiali abrasivi, poiché potrebbero danneggiare lo schermo o il display.asing. Assicurarsi che tutte le porte siano prive di polvere e detriti.
5.2 Cura della batteria
The ST-5155 uses a built-in 7.4V/2600mAh Lithium-ion battery. To prolong battery life:
- Evitare di scaricare completamente la batteria frequentemente.
- Store the device in a cool, dry place if not used for extended periods, with the battery charged to about 50%.
- Utilizzare solo il caricabatterie originale fornito con il dispositivo.
5.3 Aggiornamenti software
Software updates may be released to improve performance or add new features. Check the manufacturer's official website (if available) for the latest firmware. Updates are typically performed via the USB port. Follow the specific instructions provided with the update file accuratamente.
6. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il dispositivo non si accende. | La batteria è scarica o difettosa. | Connect to power adapter and charge. If problem persists, contact support. |
| Nessun segnale rilevato. | Incorrect cable connection, wrong satellite/transponder settings, dish/antenna misalignment. | Check cable connections. Verify satellite/transponder parameters. Re-align dish/antenna using signal strength indicators. |
| Poor signal quality/pixelation. | Weak signal, interference, incorrect LNB/antenna settings. | Fine-tune dish/antenna alignment. Check for obstructions. Verify LNB/antenna settings. |
| Schermo bloccato o non risponde. | Problema software. | Perform a soft reset by holding the power button until the device turns off, then restart. If persistent, consider a firmware update. |
7. Specifiche tecniche
| Caratteristica | Specificazione |
|---|---|
| Modello | ST-5155 |
| Marca | SZBOX |
| Display | LCD HD da 4.3 pollici |
| Decodifica video | MPEG-2/4 H.264/H.265 (10-bit) |
| Standard di trasmissione | DVB-S2X/S/S2, DVB-T2/T, DVB-C |
| Connettore di ingresso satellitare | F-FEMALE Type |
| Frequenza di ingresso satellitare | da 950 a 2150 MHz |
| Livello di ingresso del segnale satellitare | -80 ~ -10dBm |
| Alimentazione LNB | 13 V/18 V, IMax 350 mA |
| DVB-T2/T Input Frequency | da 48 a 862 MHz |
| DVB-T2/T Bandwidth | 5MHz, 6MHz, 7MHz, 8MHz |
| Fornitura ANT | 5V, 12V(± 5%) Imax 200mA |
| DVB-C Input Frequency | da 48 a 862 MHz |
| Batteria | 7.4V/2600mAh Lithium-ion (Rechargeable) |
| Tempo di funzionamento | Circa 5 ore |
| Connettività | HDMI Out, AV In/Out, USB 2.0 |
| Caratteristiche speciali | Unicable/Scr/Dcss support, DiSEqC 1.0/1.1/1.2, 0/22 kHz Tone, Backlit keys, Built-in torch |
8. Informazioni sulla garanzia
Specific warranty terms and conditions for the SZBOX ST-5155 are typically provided at the point of purchase or within the product packaging. Please refer to your purchase receipt or the warranty card included with your device for detailed information regarding warranty duration, coverage, and claims process.
Generally, the manufacturer warrants this product against defects in materials and workmanship under normal use for a specified period from the original date of purchase. This warranty does not cover damage caused by accident, misuse, abuse, unauthorized modification, or improper installation.
9. Assistenza clienti
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact SZBOX customer support. While specific contact details are not provided here, you can typically find support information on the official SZBOX websito o tramite il rivenditore del prodotto.
When contacting support, please have your product model (ST-5155) and purchase information readily available to facilitate a quicker resolution.