📻 HiLetgo 0.1-2000MHz RF WideBand Amplifier: High Gain Low Noise LNA for Enhanced Signal Performance Review

Very good low noise amplifier. As per some other reviews, I used a 9 volt battery. For a simple or complex setup, this works well.

This little amplifier works well with a 1 meter long shielded magnetic loop of coaxial cable. At 12 V DC, 15 kHz to 30 MHz is achieved with the input and output capacitors supplied on the board. It should work at higher frequencies but my receiver stops at 30MHz so I haven't checked. It is important to use pure DC power for the power supply to avoid noise. Great offer.

Works great on 1090MHz, number of planes has increased from 1-2 to 11+ (need to move the antenna to a better place for more planes). I can't speak about lower ranges as there is a noise source nearby that is also amplified. But I can't blame this amp for that. Requires above 5V, runs off a regulated Korad 3300 power supply (I don't think that's a source of noise) and works best for me at 8-9V. Above 9.5V hasn't happened yet.

Seems to work best at 9 volts. The gain below 7 volts is lower and the noise introduced by this increases noticeably on the oscilloscope at 10-12 volts. Feeding it a well-regulated 9 volts seems ideal. I tested mine with a signal generator up to 100MHz and found the gain to be around 20-25dB. If you go to 12 volts you can get it up to the advertised 30dB but with the increased noise I'm pretty happy to keep it at 9 volts with less noise. One of these goes to an ADSB receiver and I'm sure it…

I didn't bother to double check the amp against the data sheet and instead went with the voltage recommendations in the Amazon description. This turned out to be an error. I applied 11V and ran the amp for about an hour until I could smell the fried magic smoke coming out of the chip. After that, the RF signal no longer passed through the amplifier. I finally looked at the amplifier and found that the board uses an INA-02186 monolithic microwave integrated circuit for the amplifier, and this…

Works perfectly. You get what you pay for. This isn't a fantasy. Some design compromises were made, likely to reduce costs. If it's so desperate to be operated at a certain voltage (below which you get very little gain and above that too much noise. That voltage seems to be around 9.4V on the board I got), why didn't they? Just add a controller? I hope their quality control process can include tuning each part for the optimal supply voltage. It would bring more stars but I don't understand the…

I bought this and not some other LNAs available because of the price. I knew I would have to solder some power connections to it. I chose the 9V battery connection. Does what it's supposed to, but is incredibly impractical. If you don't want to build a case, you always have a bare circuit board with a dangling battery. Not only that, if you are planning to use it for a long period of time, you will have to buy a lot of batteries. This thing eats her up like a bag of chips. I really wish I'd…

Using 6 AA batteries to get 9 volts and with a 315mA fuse (just in case) I have this one LNA installed directly on the Youloop antenna in a weatherproof box. The signal goes through a 100 foot cable to my radio room. It works fantastically well. Calm. It's reliable, and this $45 combo outperforms one of my (very famous) $350 loop antennas on most shortwave HF bands except MW. It performs close, if not as well, to my best loop antenna, the $300 MFJ-1886. But there is one exception. At 22m, my…