This product is designed for outdoor use, so we make it very portable and mini. You can take it out with you anytime and anywhere.
The price is also very affordable.
If you want to get a more professional/better performance 50W power amplifier at any cost, you can also consider our product:
https://www.ÇØ¿Ü.com/item/1005005115741796.html
Features:
-50W optimal selection of power for field rack stations.
- Built-in TX/RX auto cut circuit, no need for special PTT line, with signal input automatically switch to transmit mode.
- Built-in powerful cooling fan, the temperature reaches the set value automatically open cooling.
-Easy to carry mini size.
Parameters:
-Frequency range: 3.1MHz-21.5MHz
- Input power: 2-5W
- Input VSWR: ¡Â1.5@50¥Ø
- Maximum output power: 40-50W@13.8V
- Output impedance: 50¥Ø
- Supply voltage: 12-13V DC
-Current consumption: ¡Â10A
-Dimension: 88*38*120 (without protrusion)
-Weight: approx. 300g
Attention:Before use, you need to use nanoVNA or similar tools to determine the transmitting antenna impedance of 50¥Ø, SWR < 1.5. Otherwise, the power transmitter tube will be damaged due to the mismatch of transmitting impedance!
Instructions for use:
1, Connect the antenna to the ANT OUT connector;
2, connect the radio to the RF IN connector;
3, Connect the power cable to the power socket of the amplifier, at this time the power indicator on the front panel is glowing;
4, press the shortwave radio PTT transmit button, you can hear a relay sucking sound inside the amplifier, at this time the amplifier switch to TX mode, about 1 second after releasing the PTT button, there is a relay release sound, switch to RX mode.
Caution:
- Please observe radio related laws and regulations to use this amplifier legally.
please follow the power supply positive and negative polarity symbols prompted on the rear panel wiring, not to reverse the power supply,, reverse power supply polarity 100% will damage the amplifier.
- It is recommended to use nanovna or similar tool to make sure the antenna is 50¥Ø impedance, SWR¡Â1.5, absolutely forbidden to open circuit short circuit transmitting.
- When using manual antenna tuning, it is forbidden to tune the SWR while transmitting! Because this will easily damage the amplifier.
- Connect the radio station and antenna feed line before use, and finally connect the power.
- The input power must not be >5W, otherwise the amplifier will be damaged;
- This amplifier is designed to be portable and uses the housing for heat dissipation.
- The fan will be turned on when the amplifier case temperature reaches 50°C and turned off when it reaches 25°C. Therefore, please do not wrap the amplifier and leave enough space around the amplifier for heat dissipation;
- Due to the space limitation of the amplifier, there is no BPF inside the amplifier, so please be careful when using the amplifier in venues with high electromagnetic requirements;
- Do not use this amplifier in thunderstorm, and disconnect the antenna connector in thunderstorm;
- Do not disassemble the amplifier without permission, contact with the components on the circuit board of the amplifier in the transmitting state may cause high voltage electric shock.
Package included:
1 x OGS-50W HF Power Amplifier
1 x Power Cord
Note: There are two versions for you to choose from: the difference between them is that the interface on the back is of different types(as shown in the pictures), and other functions are the same.