--- product_id: 61980043 title: "30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF" brand: "walfront" price: "¥2686" currency: JPY in_stock: true reviews_count: 9 category: "Walfront" url: https://www.desertcart.jp/products/61980043-30-4000mhz-40db-rf-broad-band-amplifier-module-high-gain store_origin: JP region: Japan --- # 40dB high gain amplification 30-4000MHz ultra-wide frequency Low 135mA power consumption 30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF **Brand:** walfront **Price:** ¥2686 **Availability:** ✅ In Stock ## Summary > 🚀 Amplify Your Signal, Amplify Your Reach! ## Quick Answers - **What is this?** 30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF by walfront - **How much does it cost?** ¥2686 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/61980043-30-4000mhz-40db-rf-broad-band-amplifier-module-high-gain) ## Best For - walfront enthusiasts ## Why This Product - Trusted walfront brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerful 40dB Gain Boost:** Experience crystal-clear signal strength with a stable 40dB gain, perfect for demanding RF applications. - • **Multi-Use Signal Enhancer:** Ideal for shortwave radios, FM, remote controls, cable TV, and GPS navigation—stay connected wherever you go. - • **Compact & Lightweight Design:** Weighing only 8 grams with surface mount compatibility, it fits effortlessly into any professional RF setup. - • **Energy-Efficient Performance:** Operates at just 135mA on 5V DC, delivering high power output (+20dBm) without draining your power source. - • **Ultra-Wide Frequency Mastery:** Seamlessly amplifies signals from 30MHz to 4GHz, covering FM, HF, VHF, and UHF bands for unmatched versatility. ## Overview This Walfront RF broadband amplifier module delivers a robust 40dB gain across an ultra-wide 30-4000MHz frequency range, making it a versatile powerhouse for FM, HF, VHF, and UHF applications. With low power consumption at 135mA and a compact 8g design, it’s engineered for professionals seeking reliable, high-performance signal boosting in shortwave radios, cable TV, GPS, and more. ## Description The amplifier is 30-4000MHz (40dB) amplifier, with the characteristic of a large dynamic range. Suitable for the fixed gain amplification of RF . This amplifier has a wide frequency range, FM HF VHF/UHF. Widely used in shortwave, FM radio, remote control receiver, cable TV amplifier, GPS satellite navigation. This RF broadband amplifier module gain stability, is 40dB. Specifications: Operating Frequency: 30-4000MHz Amplifier Gain: 40dB Maximum output power: + 20dBm (100mW) @ 1dB compression point Operating Current: 135mA (5V) Supply voltage: 5VDC System Impedance: 50 Ω Weight: 8g Package included: 1 x 30-4000MHz 40dB Gain Broadband Amplifier Module Review: It does exactly what I want it to - Mt t mobile home 5 g needed a boost and it helps added a usb port for charging/ power supply and it works also plenty of info out there on how to Review: These modules are very acceptable to failure. - These modules are very acceptable to failure. A 5.0VDC they can be prone to fail as there is no over voltage protection on the PCB at all. I've had a lot of the amps fail just turning them off and on a couple of time during tests. I have had to shield these amplifiers to eliminate interference both to and from the amplifier, your better off buying the shielded one, less signal problems ## Features - The amplifier is 30-4000MHz (40dB) amplifier ,with the characteristic of a large dynamic range - Suitable for the fixed gain amplification of RF - This amplifier has a wide frequency range, FM HF VHF/UHF - Widely used in shortwave, FM radio, remote control receiver, cable TV amplifier, GPS satellite navigation. - This RF broadband amplifier module gain stability, is 40dB. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B079Z6FSVQ | | Best Sellers Rank | #83,372 in Electronics ( See Top 100 in Electronics ) #515 in Audio Component Amplifiers | | Brand | Walfront | | Brand Name | Walfront | | Customer Reviews | 3.9 out of 5 stars 24 Reviews | | Item Weight | 0.01 Kilograms | | Manufacturer | Walfront | | Material Type | Copper | | Maximum Supply Voltage | 5 Volts (DC) | | Minimum Supply Voltage | 5 Volts (DC) | | Model | Walfrontbornq938tv | | Mounting Type | Surface Mount | | Number of Channels | 1 | | Output Power | 0.1 Watts | | Package Type Name | shipping box or small electronics component box | | Part Number | Walfrontbornq938tv | | Specification Met | FCC | | Supply Current | 135 Milliamps | | UPC | 663862956313 | | Unit Count | 1.0 Count | | Voltage | 5 Volts (DC) | ## Product Details - **Manufacturer:** Walfront - **Maximum Supply Voltage:** 5 Volts (DC) - **Minimum Supply Voltage:** 5 Volts (DC) - **Mounting Type:** Surface Mount - **Voltage:** 5 Volts (DC) ## Images ![30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF - Image 1](https://m.media-amazon.com/images/I/61TZqGtog5L.jpg) ![30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF - Image 2](https://m.media-amazon.com/images/I/61FN8cMSklL.jpg) ![30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF - Image 3](https://m.media-amazon.com/images/I/61zvnZcWmHL.jpg) ![30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF - Image 4](https://m.media-amazon.com/images/I/61urZFX6p5L.jpg) ![30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF - Image 5](https://m.media-amazon.com/images/I/618G+5vm1aL.jpg) ## Questions & Answers **Q: Are there any specifics about the components used in this PCB? What are the capacitors and other components?** A: Technical indicators: 1) Working frequency: 30-4000MHz 2) Amplifier gain: 40dB 3) Output power:+20dBm (100mW) @ 1dB compression point 4) Working current: 135mA (5V) 5) Power supply voltage: 5VDC 6) System impedance: 50 ohms 7) Boundary dimension: 25 * 33mm (excluding joints) 8) Joint type: SMA-K (standard female head, external screw and internal hole) ## Customer Reviews ### ⭐⭐⭐⭐⭐ It does exactly what I want it to *by B***S on October 6, 2023* Mt t mobile home 5 g needed a boost and it helps added a usb port for charging/ power supply and it works also plenty of info out there on how to ### ⭐⭐⭐⭐ These modules are very acceptable to failure. *by P***R on May 3, 2026* These modules are very acceptable to failure. A 5.0VDC they can be prone to fail as there is no over voltage protection on the PCB at all. I've had a lot of the amps fail just turning them off and on a couple of time during tests. I have had to shield these amplifiers to eliminate interference both to and from the amplifier, your better off buying the shielded one, less signal problems ### ⭐ Does not work *by D***N on August 25, 2023* When connected to 5V the PCB draws 120mA, when RF signal applied at 150MHz current draw drops to 60mA. RF single strength drops 30dB and is not amplified. Either I received bad board or bad design. Unable to find a data sheet on the mentioned SBB5089Z. No information included with part. Product does not work as advertised. ## Frequently Bought Together - 30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF - SDTC Tech 5pcs Coaxial Coax Cable Assembly SMA Male to SMA Male Antenna Extender Cable Adapter Jumper(6 inch/15cm) - 5-3500MHz RF WideBand Amplifier 20dB High Gain Low Noise LNA Amplifier with Shielding Shell --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/61980043-30-4000mhz-40db-rf-broad-band-amplifier-module-high-gain](https://www.desertcart.jp/products/61980043-30-4000mhz-40db-rf-broad-band-amplifier-module-high-gain) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-17*