---
product_id: 61980043
title: "30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF"
brand: "walfront"
price: "73 zł"
currency: PLN
in_stock: true
reviews_count: 9
category: "Walfront"
url: https://www.desertcart.pl/products/61980043-30-4000mhz-40db-rf-broad-band-amplifier-module-high-gain
store_origin: PL
region: Poland
---

# 40dB high gain boost 30-4000MHz ultra-wide freq 5V low power, 135mA 30-4000MHz 40dB RF Broad Band Amplifier Module High Gain Amplifier Board for FM HF VHF/UHF

**Brand:** walfront
**Price:** 73 zł
**Availability:** ✅ In Stock

## Summary

> 🚀 Boost Your Signal, Elevate Your Connection!

## 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?** 73 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/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:** Amplify weak signals with a stable 40dB gain, ensuring crystal-clear reception every time.
- • **Compact & Lightweight:** At just 8g and surface-mount design, it fits effortlessly into any RF setup without bulk.
- • **Multi-Application Ready:** Ideal for shortwave radios, GPS navigation, cable TV, remote controls, and more—stay connected everywhere.
- • **Energy Efficient Operation:** Runs on a standard 5V supply with only 135mA current draw, perfect for continuous use.
- • **Ultra-Wide Frequency Range:** Seamlessly covers FM, HF, VHF, and UHF bands from 30 to 4000MHz for unmatched versatility.

## Overview

This 30-4000MHz RF broadband amplifier module delivers a robust 40dB gain with stable performance across a massive frequency range. Designed for professional-grade fixed gain RF amplification, it supports diverse applications from FM radio to GPS navigation. Lightweight and energy-efficient, it operates on a 5V supply drawing just 135mA, making it an essential upgrade for anyone demanding superior signal clarity and range.

## 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: Garbage - Burned out within 5 minutes. When it did run it had a very bad oscillation In gain. Indicating that it was built with poor components.

## 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 | #44,188 in Electronics ( See Top 100 in Electronics ) #255 in Audio Component Amplifiers |
| Brand | Walfront |
| Date First Available | March 3, 2018 |
| Item Weight | 0.352 ounces |
| Item model number | Walfrontbornq938tv |
| Manufacturer | Walfront |
| Material | Copper |
| Maximum Supply Voltage | 5 Volts (DC) |
| Minimum Supply Voltage | 5 Volts (DC) |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Output Power | 0.1 Watts |
| Package Type Name | shipping box or small electronics component box |
| Specification Met | FCC |
| Supply Current | 135 Milliamps |
| UPC | 663862956313 |
| 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)

## 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

### ⭐ Garbage
*by D***E on June 28, 2025*

Burned out within 5 minutes. When it did run it had a very bad oscillation In gain. Indicating that it was built with poor components.

### ⭐⭐⭐ It works, BUT
*by G***S on July 30, 2023*

I bought 2 of them and tested them with 2 different instruments the R3465 spectrum analyzer with tracking generator and the liteVNA64 There was a 50dB DC to 18Ghz attenuator in the input to make sure the amplifier was not driven into saturation. The amplifiers did not make the published spec of 40db at 4Ghz. That is the only reason it has only 3 stars. The highest gain is 50db at 5Mhz, then it becomes flat with 41 db to around 550Mhz, 1Ghz 40db, 2Ghz 35db,3Ghz 32db, 4Ghz 27db, it does have gain at higher frequencies, 5Ghz 25db, 6Ghz 22db, 8Ghz 14db. Both amplifiers agree within +-2db. The reverse isolation at 1Ghz (my frequency of interest) is 34db.

## Frequently Bought Together

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-14*