Description:
The HT004 Low Noise Amplifier is an electronic device that is primarily used to amplify signals and minimize the effects of noise. It operates in the frequency range of 0.1MHz-6GHz.

Features:
- Wide bandwidth: The amplifier can work in the frequency range of 0.1MHz-6GHz. Thus, it can be widely used.
- High gain: With 20dB gain, it makes the output signal more powerful.
- Low noise: It can amplify the signal while maintaining a low noise level to avoid interference and distortion.

Application Scenarios:
1. Beidou/GPS receiver
2. Receiver system (FM radio receiving, radar receiving, etc.)
3. EMC receiving system
4. SDR receiver

Specifications:
- Model: HT004
- Feature: Built-in TQP3M9037-LNA
- Frequency: 0.1MHz-6GHz
- Gain: 20DB
- Input/output impedance: 50Ω

Q&A:

1. Does HT004 LNA include battery?
No, this is the battery-free version.

2. How to supply power to HT004 LNA?

①Move the black button to the Tag'USB'
②Connect the USB cable with a power supply of no more than 5V 1A
③Please note that using more than 5V 1A power supply will cause damage to the HT004 LNA, which is not covered by the warranty！！！
④Cannot use 5V2.4A power bank to charge this device!

3. Can I install a battery inside the HT004 LNA? How do I pick the right battery?

-Yes，We have reserved space for battery installation., and we have uploaded an instructional video for installing the battery on the product detail page.
-Recommended battery specifications:
①Compatible with 3.7V300mAh/3.7v500mAh battery
②Battery size
 ≤ Length*Width*Thickness(30*30*6mm)
You can search keyword '3.7V 500mAh 603030 ' on the platform.

4. How to charge the battery after installing it?

①Move the black button to the Tag'BAT'
②Connect the USB cable with a power supply of no more than 5V 1A
③Please note that using more than 5V 1A power supply will cause damage to the HT004 LNA, which is not covered by the warranty!!!

Package Included:
- 1 x LNA Amplifier
- 1 x USB Cable