wzmacniacz mocy
Wzmacniacz mocy PA dla DVB-T COFDM TX Transmisja 1W 2W 5W 10W 20W


The pa power amplifier module realizes the power amplification output of the RF signal. When input voltage is 12V, connect to COFDM modulation board, output power can be up to 1W (+30dBm)
cechy
- Pracujące pasmo częstotliwości: 300MHz~360MHz (more frequency is adjustable)
- Zdobyć: 45dB
- Pout: +33dBm (PAR=9.9dB)
- ACPR: < -36dBc
- IP3: +49dBm
- Liczba szumów: 6dB
- Supply voltage: 12V., output 1W (+30dBm) transmit power, power consumption is about 8.7W.
- Interfejs radiowy: SMA male thread hole
Specyfikacja
Electrical Specifications @ +25℃,ZS = ZL = 50Ω,Vcc =12V
| Parametr | Unit | Minimum | Typical | Maximum |
| Zakres częstotliwości | MHz | 300 | Opcjonalny | 360 |
| Małe wzmocnienie sygnału | db | 45.0 | ||
| Gain Flatness dB | db | +/-0.5 | ||
| Output Power Pout@Pin=-15dBm | dBm | 30.0 | ||
| IP3 dBm +49 | dBm | 49.0 | ||
| ACPR(WCDMA PAR=9.9dB) | dBc | -40 | ||
| Odwrotna izolacja | dB | -45 | ||
| Liczba szumów | dB | 4 | ||
| Efficiency(Pout=+39dBm@470MHz) | % | 13.8 | ||
| VSWR input | 1.3:1 | |||
| wynik | 2.0:1 | |||
| DC Power Supply | V. | 7.4 | 10.0 | 12 |
| Supply Current (Quiescent) | mA | 300.0 | ||
| rozmiar | 35.1mm x 18.1mm x 0.6mm |
Opcjonalna częstotliwość
PA1W330 Frequency 300~360Mhz
PA1W470 Frequency 450~500Mhz
PA1W550 Frequency 544~564Mhz
PA1W600 Frequency 580~620Mhz
PA1W700 Frequency 680~720Mhz
Absolute Maximum Ratings
| Parametr | Absolutne maksimum |
| RF Input Power | -5.0 dBm |
| Napięcie zasilania | +14V. |
| temperatura robocza | -40℃ to +65℃ |
| Temperatura przechowywania | -55℃ to +100℃ |

Przegląd
ten PA Power Amplifier module for COFDM transmitters is designed to deliver stable and efficient RF power amplification for digital video broadcasting and wireless video transmission applications. Ten wysokowydajny wzmacniacz zapewnia moc wyjściową na poziomie do +30 dBm (1W) under standard 12V operation, making it suitable for integration with COFDM modulation boards, UAV downlink systems, portable video transmitters, and other wireless communication platforms.
With its szeroki zakres częstotliwości, adjustable design, and optimized linearity, wzmacniacz zapewnia niezawodną transmisję sygnału przy niskim poziomie szumów i doskonałej czystości widmowej. It is particularly suitable for DVB-T COFDM transmission systems, where maintaining accurate modulation performance and minimal adjacent channel interference is critical.
The amplifier adopts a compact form factor (35.1 mm× 18.1 mm× 0.6 mm) with SMA RF interfaces, co ułatwia integrację z istniejącym sprzętem nadajnika. It also incorporates robust protection features, ensuring stable operation across demanding environments, with an operating temperature range from -40℃ to +65℃.
Z możliwością wyboru pasm częstotliwości od 300 MHz up to 720 MHz, wzmacniacz ten można dostosować do wielu potrzeb branżowych, w tym public safety, UAV video downlinks, military reconnaissance, wireless monitoring, and industrial IoT Zastosowania. Optional versions are available with output powers of 1W, 2W, 5W, 10W, i 15W, offering a scalable solution for different deployment requirements.
Kluczowe funkcje
-
Wideband Frequency Operation:
-
Supports standard working frequency band 300–360 MHz, with multiple optional models covering 450–720 MHz.
-
Custom frequency adjustments available for specialized applications.
-
-
High Gain and Output Power:
-
Typical small-signal gain of 45 dB, ensuring strong amplification from low input drive levels.
-
Delivers up to +30 dBm (1W) RF output power under 12V input.
-
-
Excellent Linearity and Spectral Purity:
-
Adjacent Channel Power Ratio (ACPR) < -36 dBc, ensuring clean signal transmission with minimal interference.
-
Third-Order Intercept Point (IP3) z +49 dBm, supporting high linearity for COFDM modulation.
-
-
Low Noise Performance:
-
Noise Figure of only 6 dB, maintaining signal clarity.
-
-
Optimized Efficiency:
-
Power consumption of approximately 8.7 W at 1W output, with efficiency ~13.8%.
-
-
Kompaktowy & Solidna konstrukcja:
-
Small form factor: 35.1 mm× 18.1 mm× 0.6 mm.
-
SMA RF interface for secure and low-loss connections.
-
Wide operating temperature range -40℃ to +65℃, ensuring durability in harsh environments.
-
-
Flexible Supply Range:
-
Operates on 7.4V to 12V DC supply.
-
Quiescent current: 300 mA typical.
-
Detailed Specifications
Electrical Specifications (at +25℃, ZS = ZL = 50Ω, Vcc = 12V)
| Parametr | Unit | Min | Typical | Max |
|---|---|---|---|---|
| Zakres częstotliwości | MHz | 300 | - - | 360 |
| Małe wzmocnienie sygnału | dB | - - | 45.0 | - - |
| Zyskaj płaskość | dB | - - | ±0.5 | - - |
| Output Power (Pin = -15 dBm) | dBm | - - | +30 | - - |
| IP3 (Third Order Intercept) | dBm | - - | +49 | - - |
| ACPR (WCDMA, PAR=9.9 dB) | dBc | - - | -40 | - - |
| Odwrotna izolacja | dB | - - | -45 | - - |
| Liczba szumów | dB | - - | 4 | - - |
| Efficiency (@ Pout = +39 dBm, 470 MHz) | % | - - | 13.8 | - - |
| Input VSWR | - - | - - | 1.3:1 | - - |
| Output VSWR | - - | - - | 2.0:1 | - - |
| DC Supply Voltage | V. | 7.4 | 10.0 | 12.0 |
| Supply Current (Quiescent) | mA | - - | 300 | - - |
| Rozmiar | mm | - - | 35.1 × 18.1 × 0.6 | - - |
Absolute Maximum Ratings
| Parametr | Absolutne maksimum |
|---|---|
| RF Input Power | -5 dBm |
| Napięcie zasilania | +14 V. |
| temperatura robocza | -40℃ to +65℃ |
| Temperatura przechowywania | -55℃ to +100℃ |
Uwaga: Przekroczenie maksymalnych wartości znamionowych może spowodować trwałe uszkodzenie. Zapewnij odpowiednie odprowadzanie ciepła i stabilną regulację zasilania podczas pracy przy wysokich poziomach mocy wyjściowej.
Optional Frequency Models
The amplifier can be provided in different frequency configurations depending on customer requirements:
-
PA1W330: 300–360 MHz
-
PA1W470: 450–500 MHz
-
PA1W550: 544–564 MHz
-
PA1W600: 580–620 MHz
-
PA1W700: 680–720 MHz
Customized frequency bands outside this range can be developed upon request.
Aplikacje
ten COFDM PA Power Amplifier is widely applicable in advanced RF transmission systems where high linearity, stable output, and clean spectrum are essential. Typical applications include:
-
UAV Wireless Video Transmission
-
Enables long-range, low-latency video downlinks for drones.
-
Kompatybilny z cyfrowymi nadajnikami opartymi na COFDM, zapewniający niezawodną widoczność bez linii wzroku (NLOS) video delivery.
-
-
Public Security and Law Enforcement
-
Used in mobile surveillance units, body-worn transmitters, and tactical wireless systems.
-
Provides stable communication links in urban and rural deployment scenarios.
-
-
Broadcasting and Media Transmission
-
Supports DVB-T/COFDM standard, dzięki czemu idealnie nadaje się do łączy w górę telewizji cyfrowej i konfiguracji transmisji przenośnej.
-
-
Military and Defense Applications
-
Integrated into reconnaissance systems, remote-controlled unmanned vehicles (UGVs/USVs), and secure communication links.
-
-
Industrial IoT and Wireless Control
-
Zapewnia niezawodną łączność dalekiego zasięgu dla przemysłowych systemów monitorowania i zdalnego sterowania.
-
-
Emergency Response and Firefighting
-
Zapewnia niezawodną transmisję obrazu i danych podczas akcji ratowniczych w skomplikowanym terenie.
-
Integration Guidelines
-
Zasilacz: Operate within 7.4–12 V for optimal performance. Ensure supply ripple is minimized to reduce spurious emissions.
-
Chłodzenie: Aby zachować stabilność, należy stosować odpowiednie odprowadzanie ciepła podczas pracy przy ciągłej, wysokiej mocy wyjściowej.
-
Interfejs RF: Always terminate unused RF ports with 50Ω load to prevent reflections and damage.
-
Modulacja: Best suited for COFDM modulation schemes such as DVB-T, with excellent performance in adjacent channel environments.
Często zadawane pytania (FAQ)
Q1: What is the maximum output power of this amplifier?
A1: The standard module delivers +30 dBm (1W) of RF power under 12V supply. Higher power versions (2W, 5W, 10W, i 15W) are also available for extended range requirements.
Q2: Czy tego wzmacniacza można używać poza określonymi pasmami częstotliwości??
A2: tak, we offer custom frequency tuning upon request. Na przykład, if you require operation in 800–900 MHz or other bands, we can redesign the module accordingly.
Pytanie 3: Is this amplifier suitable for analog video transmission?
A3: While optimized for COFDM digital modulation, wzmacniacz może być również używany do analogowych nadajników wideo opartych na paśmie FM lub AM. Jednakże, wydajność (linearity, ACPR) is best utilized in digital systems.
Q4: How does the amplifier handle thermal dissipation?
A4: The module is designed for efficient heat transfer, but when operating at high output levels continuously, it is recommended to mount the module on a heat sink or within a ventilated enclosure.
Q5: Can I power the amplifier directly from a drone’s battery?
A5: tak, the amplifier supports a supply range of 7.4V to 12V, making it compatible with 2S–3S Li-ion/LiPo battery packs typically used in UAVs.
Q6: What kind of connectors are provided?
A6: The amplifier uses SMA male thread hole connectors for RF input and output, ensuring secure and low-loss connections.
Q7: Does the amplifier have built-in protection against overdrive?
A7: Input RF drive should not exceed -5 dBm (absolute max). Zdecydowanie zaleca się ograniczenie mocy wejściowej i unikanie warunków przesterowania. External protection circuits can be added if necessary.
Q8: What is the difference between the 1W, 2W, 5W, 10W, and 15W versions?
A8: The differences lie mainly in the power amplification stage. Higher power versions require additional thermal management and may have slightly larger form factors, but all share the same integration concept.
Q9: Czy ten wzmacniacz może współpracować z systemami komunikacji opartymi na OFDM innymi niż DVB-T??
A9: tak. It is suitable for any OFDM/COFDM system, including LTE, custom digital video, and wireless data transmission schemes, provided the operating frequency is matched.
Q10: What industries are currently using this module?
A10: Our amplifiers are widely used in public security, gaszenie pożarów, UAV video transmission, defense reconnaissance, nadawczy, and industrial IoT fields.
Wniosek
ten PA Power Amplifier COFDM module is a robust, wysokowydajny wzmacniacz RF zoptymalizowany pod kątem potrzeb współczesnej cyfrowej transmisji bezprzewodowej. Jego high linearity, low noise figure, wide frequency coverage, and optional scalable power outputs make it a versatile choice for UAVs, nadawczy, defense, and emergency communication systems.
Whether deployed in 1W lightweight UAV payloads or scaled up to 15W ground-based transmitters, the amplifier ensures reliable, efficient, and secure transmission of COFDM signals across diverse environments.







ISDB-T.com_BUYER –
This PA Power Amplifier has completely transformed my DVB-T/COFDM transmission setup! I opted for the 10W version, and the boost in signal strength and clarity is nothing short of remarkable. The installation was straightforward, and the build quality feels exceptionally robust. I’ve noticed a dramatic improvement in my transmission range and signal penetration, especially in challenging environments where I previously experienced dropouts. The amplifier operates with impressive efficiency, remaining stable and relatively cool even during extended use. It has added a professional level of reliability and performance to my broadcasts that I was missing before. For anyone serious about enhancing their wireless video transmission system, this amplifier is an outstanding investment and delivers exceptional value for its price. Highly recommended for achieving consistent, high-quality results!