50 Watts 320MHz Ενισχυτής ισχύος για πομπό COFDM 50WPA 305-335MHz

Εισαγωγή

The 50watts PA 320MHz power amplifier is a high-power RF amplifier designed for COFDM (Κωδικοποιημένη Ορθογώνια Πολυπλεξία Διαίρεσης Συχνότητας) Συστήματα μετάδοσης ασύρματων βίντεο, suitable for the intermediate frequency UHF band (305-335MHz).

Support COFDM modulation: Adapt to QPSK/16QAM/64QAM constellation diagram, optional bandwidth 2/4/8MHz, FEC (προς τα εμπρός διόρθωση σφαλμάτων) and guard interval are adjustable to ensure anti-multipath interference capability.

​​Having high-frequency stability, strong anti-interference and industrial-grade protection​​.

χαρακτηριστικό

 

Προσδιορισμός

• Central Frequency: 320Mhz (Optimum operating frequency range 305–335 MHz).

• Ισχύς εξόδου: 50W (about 47dBm), supports power fine-tuning (such as ±1dB accuracy).

• Συμβατότητα: Supports COFDM modulation wireless video transmitter module.

• Παροχή ηλεκτρικού ρεύματος: DC +28V, ρεύμα εργασίας <10ΕΝΑ, requires stable power supply support.

• Διασύνδεση: SMA or N-type RF interface, impedance 50Ω, VSWR≤1.5:1, reduce reflection loss.

• ​​Size and heat dissipation​​: συμπαγής σχεδιασμός (≤0.75kg), external heat sink or fanless structure, suitable for industrial environments.

• ​​Protection level​​: Supports IP30 protection, working temperature -25℃~+65℃, dust and moisture proof.

• ​​Protection mechanism​​: Built-in high temperature, υπέρταση, open circuit and VSWR abnormal protection to improve equipment reliability.

Μέγεθος

 

Βάρος

Typical application scenarios

• With COFDM transmitter, Η (οπτική επαφή) transmission over 50 km is achieved, which is suitable for drone inspection, disaster relief and other scenarios.
• With external directional antennas (such as Yagi antennas), NLOS (μη οπτική επαφή) transmission can reach 1-3 km.

• Integrated in a 19-inch vehicle cabinet, it supports remote high-definition video return (1080Π, Κωδικοποίηση H.265) between vehicles/ships/helicopters.
• As a relay amplifier, it extends the coverage range (such as a 100-kilometer helicopter link).

• With mini COFDM transmitter, it is used for public security reconnaissance and covert law enforcement, and supports AES-128 encrypted transmission

Performance Enhancement Solution

• ​​Power Expansion​​: Can cascade higher power amplifiers (such as 100W modules), or match 3W/5W preamplifiers to increase link budget.
• ​​Antenna Optimization​​: Use directional antennas (gain improvement ≥3dB) to significantly increase transmission distance and anti-interference capabilities.
• ​​Monitoring and Maintenance​​: Support RS-485/RS232 interface to remotely monitor power, temperature and VSWR status for easy fault diagnosis