--- product_id: 43378451 title: "HiLetgo 0.1-2000MHz RF WideBand Amplifier 30dB High Gain Low Noise LNA Amplifier" brand: "hiletgo" price: "KD 5.83" currency: KWD in_stock: true reviews_count: 13 category: "Hi Letgo" url: https://www.desertcart.com.kw/products/43378451-hiletgo-0-1-2000mhz-rf-wideband-amplifier-30db-high-gain store_origin: KW region: Kuwait --- # Up to 32.5dB high gain 0.1-2000MHz ultra-wide frequency Low noise figure for clear signals HiLetgo 0.1-2000MHz RF WideBand Amplifier 30dB High Gain Low Noise LNA Amplifier **Brand:** hiletgo **Price:** KD 5.83 **Availability:** βœ… In Stock ## Summary > πŸš€ Amplify your signal, amplify your edge! ## Quick Answers - **What is this?** HiLetgo 0.1-2000MHz RF WideBand Amplifier 30dB High Gain Low Noise LNA Amplifier by hiletgo - **How much does it cost?** KD 5.83 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/43378451-hiletgo-0-1-2000mhz-rf-wideband-amplifier-30db-high-gain) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Flexible Power Supply:** Operates between 9-12V with adjustable gain for custom setups - β€’ **Low Noise Performance:** Minimizes interference ensuring crystal-clear reception - β€’ **High Gain Amplification:** Delivers up to 32.5dB gain to boost weak signals with precision - β€’ **Ultra-Wide Frequency Range:** Seamlessly covers 0.1 to 2000MHz for versatile RF applications - β€’ **Compact & Modifiable Design:** Surface mount with easy bias-T mod for SDR donglesβ€”perfect for DIY pros ## Overview The HiLetgo 0.1-2000MHz RF WideBand Amplifier is a compact, high-performance LNA module designed for professional-grade RF signal boosting. With a wide frequency range, up to 32.5dB gain, and low noise figure, it enhances communication distance and signal clarity across applications like shortwave, FM radio, and cable TV. Its flexible 9-12V power input and mod-friendly PCB make it ideal for SDR enthusiasts and RF engineers seeking reliable, customizable amplification. ## Description Features: -This product with wide frequency range, high gain, low noise figure -This product can be applied to various rf receive front-end and increases communication distance -Used for Short wave, FM radio, remote control receiver, such as cable TV signal amplifier need low noise rf signal amplification Specifications: Operating frequency0.1-2000MHz Amplifier gain F=0.1MHz, gain=32dB F=500Mhz, gain=31dB F=1000MHz, gain=29dB F=1500Mhz, gain=25dB F=2000MHz, gain=20dB Maximum power output+10dBm 10mW Power supply voltage: 9-12 VDC System impedance50 Tips: 1.When working frequency is less than 500 MHZit get well gain flatness, can make it less than 1dB after careful adjustment. The lower frequency the higher gain consistency. 2.Amplifier working frequency of the lower limit is subject to input and output capacitor, the default value is 0.1 uF, working to 0.1 MHz. Increase the input and output capacitance appropriately, can extend the cut-off frequency, such as 10uF capacitance can work to 5KHz. 3.When the power supply voltage changes in 5-8 v, it can be used as a variable gain amplifier, gain increases with the increase of the power supply voltage, which suitable for radio frequency receive front-end circuit, using DA control power supply voltage, to control the gain of the amplifier, automatic gain control 4.When the power supply voltage in the 8-10 v, the low frequency end gain up to 30 db, at this time the amplifier has a low noise coefficient and good stability. 5.When the voltage is 12 v, reach maximum gain, the low frequency end gain of 32.5 dB. Package included: 1 * 0.1-2000MHz RF Wide Band Amplifier Module 30dB High Gain Review: Great product and would recommend to anyone that needs a preamp - excellent preamp. works extremely well on HF frequencies. Review: Good RF amplifier for cheap, cah be easily modified to be powered from cheap SDR dongles - This LNA is a good deal for a good and easy-to-live-with amplifier. It uses a BGA2869 as the main amplifier IC (thanks to another reviewer for the info!). One notable point is that apparently a batch of these were populated and shipped with incorrect values for the resistor that drops voltage from the 9-12V input down to the 5V that the chip requires, so check when you receive it that it has a 220 ohm resistor and has the code 221 (5%) or 2200 (1%) marked on it if you plan to power it from the VIN pad. This problem is apparently so rampant that some other product photos for other listings on desertcart actually have the wrong part visible. Note that there were some earlier revisions that have a different MMIC amp or different layout as well that have reviews included in this listing. Instead of powering it through the VIN pad, this PCB's real party trick is that it can be modified to be driven from a 5V bias T voltage from the receiver that many SRD dongles (like the RTL-SDR v3 and v4) can provide with only a piece of resistor leg or jumper wire, requiring no outside power supply. Just solder a jumper from the center RFout pin on the SMA connector to the node that connects to the Vcc pin on the IC, as seen in the photo. The bias T option can be easily enabled in most SDR software like SRD# or SDR++. The LNA draws around 25mA and the RTL-SDR is rated to source 180mA. I also included screenshots of SDR++ tuned to a weak broadcast FM station using the dipole antenna kit offered with the RTL-SDR v4 so that you can see the gain difference. The only difference between the two screenshots are with the LNA included and removed from the coax line. You can see the difference between the waterfall graphs on the screenshot with the amp removed, and can see the difference on the SNR meter on the top right between the two. Note that both input and output on this amp are female, so you'll need a male-to-male SMA adapter to connect it in-line with this antenna kit. Overall, this is a nice amp for a good price, the PCB is laid out well with good via fencing for RF signal integrity, and has a fair amount of vias to thermally connect the chip to both the top and bottom ground plane for cooling. ## Features - 0.1-2000MHz RF Wide Band Amplifier - Power supply voltage: 9-12 VDC - High Gain Low Noise LNA Amplifier - Maximum power output+13dBm 20mW - It's low in properties can be a perfect match various circuits as ideal amplifier buffer amplifiers. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N2NJSGV | | Best Sellers Rank | #62,379 in Electronics ( See Top 100 in Electronics ) #390 in Audio Component Amplifiers | | Brand | HiLetgo | | Brand Name | HiLetgo | | Customer Reviews | 3.9 out of 5 stars 438 Reviews | | Manufacturer | HiLetgo | | Maximum Supply Voltage | 12 Volts (DC) | | Minimum Supply Voltage | 9 Volts (DC) | | Model | 3-01-1225 | | Mounting Type | Surface Mount | | Number of Channels | 1 | | Output Power | 0.01 Watts | | Part Number | 3-01-1225 | | Specification Met | CE | | Voltage | 10 Volts, 8 Volts | ## Product Details - **Manufacturer:** HiLetgo - **Maximum Supply Voltage:** 12 Volts (DC) - **Minimum Supply Voltage:** 9 Volts (DC) - **Mounting Type:** Surface Mount - **Voltage:** 10 Volts, 8 Volts ## Images ![HiLetgo 0.1-2000MHz RF WideBand Amplifier 30dB High Gain Low Noise LNA Amplifier - Image 1](https://m.media-amazon.com/images/I/61cIjBRskOS.jpg) ![HiLetgo 0.1-2000MHz RF WideBand Amplifier 30dB High Gain Low Noise LNA Amplifier - Image 2](https://m.media-amazon.com/images/I/61l74fZ1-RS.jpg) ![HiLetgo 0.1-2000MHz RF WideBand Amplifier 30dB High Gain Low Noise LNA Amplifier - Image 3](https://m.media-amazon.com/images/I/61YpCTyY2sS.jpg) ## Questions & Answers **Q: How to connect to RG-6 cable?** A: I think the best way would be to get an SMA Male to UHF Female (SO-239) adapter or cable assembly. And then put PL-259 (UHF) Male connectors on your RG-6. **Q: I just don't want any additional wires. Will this work with Bias Tee?** A: 1. The Bias Tee needs to supply a minimum of 8v at the LNA. This typically means injecting 9-10v at the Bias Tee unless it's particularly close to the LNA. 2. The RF Out center pin needs to be tied to VCC. The shorter the wire the better. **Q: What amperage would be safe for this device?** A: The current draw for this device is in the milliampere range, 41 mA is what I measured. **Q: What is the noise figure of this low noise amplifier? The most important specification of a low noise amplifier is its noise figure not its gain!** A: Don't know the noise figure. But just the amplifier alone (no input signal) raises the noise floor of my SDR receiver by about 13 dBm at 30 MHz. Probably not too good at VHF/UHF but no problem at HF. Hope this helps. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product and would recommend to anyone that needs a preamp *by T***D on February 6, 2026* excellent preamp. works extremely well on HF frequencies. ### ⭐⭐⭐⭐⭐ Good RF amplifier for cheap, cah be easily modified to be powered from cheap SDR dongles *by C***G on October 26, 2025* This LNA is a good deal for a good and easy-to-live-with amplifier. It uses a BGA2869 as the main amplifier IC (thanks to another reviewer for the info!). One notable point is that apparently a batch of these were populated and shipped with incorrect values for the resistor that drops voltage from the 9-12V input down to the 5V that the chip requires, so check when you receive it that it has a 220 ohm resistor and has the code 221 (5%) or 2200 (1%) marked on it if you plan to power it from the VIN pad. This problem is apparently so rampant that some other product photos for other listings on Amazon actually have the wrong part visible. Note that there were some earlier revisions that have a different MMIC amp or different layout as well that have reviews included in this listing. Instead of powering it through the VIN pad, this PCB's real party trick is that it can be modified to be driven from a 5V bias T voltage from the receiver that many SRD dongles (like the RTL-SDR v3 and v4) can provide with only a piece of resistor leg or jumper wire, requiring no outside power supply. Just solder a jumper from the center RFout pin on the SMA connector to the node that connects to the Vcc pin on the IC, as seen in the photo. The bias T option can be easily enabled in most SDR software like SRD# or SDR++. The LNA draws around 25mA and the RTL-SDR is rated to source 180mA. I also included screenshots of SDR++ tuned to a weak broadcast FM station using the dipole antenna kit offered with the RTL-SDR v4 so that you can see the gain difference. The only difference between the two screenshots are with the LNA included and removed from the coax line. You can see the difference between the waterfall graphs on the screenshot with the amp removed, and can see the difference on the SNR meter on the top right between the two. Note that both input and output on this amp are female, so you'll need a male-to-male SMA adapter to connect it in-line with this antenna kit. Overall, this is a nice amp for a good price, the PCB is laid out well with good via fencing for RF signal integrity, and has a fair amount of vias to thermally connect the chip to both the top and bottom ground plane for cooling. ### ⭐⭐⭐⭐ A tricky device. Things you should know. *by B***9 on February 10, 2025* This preamp works fine, but I think you have to apply it correctly. It's a GaAs Rf amplifier chip, similar to unit such as the Avago 82563, but not that -- possibly a Chinese clone or variant of a different chip. This one appears to run with a current of about 35 ma to deliver its full gain, and is intended for 5V operation. The sellers have adapted it to run at 9-12 volts by adding the 220 ohm resistor, to drop the voltage down. If the voltage is reduced too much, its gain goes down. In fact, this is a good way to make a variable gain preamp - by driving it with different voltages (without a dropping resistor), say between 3V and 5V. At the lowest voltages, it actually becomes an attenuator. Of course, the current consumption is fairly high for that application -- you might do better in your attenuator circuit by just using a PIN diode. The 220 ohm resistor permits full output when connected to 12V, but at 9V the gain will be much less, which may be why some reviewing it here have had mediocre results with it. If you intend to use it at 9V, you best reduce the resistance. In my application, using two Lithium Ion batteries (3.2-4.2V each) I found a good choice was to change the 220 ohm resistor to 120 ohms. However in my circuit, I also added a 1 mH choke as shown, which has 33 ohms series resistance, so my resistor is actually 100 ohms. The lower the voltage you run it from, the more the inductor is necessary for best output. Check that it is drawing at least 25-35 ma. Also note that it's good to mount the unit in a grounded metal box. Traditionally, the hobbyist mounts these kinds of devices inside an Altoids tin. In my case I used some copper tape lining inside a plastic box. The seller has stripped down their product here to the bare minimum, and I think they could have done a better job making it usable over a wider voltage range. But with care, it will give excellent results. I have two cautions. First, don't try to run this from 5V -- unless you make the modification I suggest (small resistor + RF choke). Second, be careful soldering around this, because GaAs circuits die very easily when treated roughly. If you're not comfortable making changes to the circuit, perhaps it would be better to get one of the other units. Or, get a transistor-based (Jfet) preamp. Those would be more costly, though. Only the very low cost justifies this circuit. ## Frequently Bought Together - HiLetgo 0.1-2000MHz RF WideBand Amplifier 30dB High Gain Low Noise LNA Amplifier - SDTC Tech 5pcs Coaxial Coax Cable Assembly SMA Male to SMA Male Antenna Extender Cable Adapter Jumper(6 inch/15cm) - SaiDian 5Pcs/Set EMC EMI Near Field Probe 9KHz-3GHz SMA Female Antenna Fine for Conducted Radiation --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.kw/products/43378451-hiletgo-0-1-2000mhz-rf-wideband-amplifier-30db-high-gain](https://www.desertcart.com.kw/products/43378451-hiletgo-0-1-2000mhz-rf-wideband-amplifier-30db-high-gain) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-23*