---
product_id: 643763159
title: "Radioberry Preamp Board"
brand: "aursinc"
price: "€ 177.08"
currency: EUR
in_stock: true
reviews_count: 11
category: "Aursinc"
url: https://www.desertcart.hr/products/643763159-radioberry-preamp-board
store_origin: HR
region: Croatia
---

# 3-5W HF Power Output 1MHz-50MHz RF Range Plug & Play SMA Ports Radioberry Preamp Board

**Brand:** aursinc
**Price:** € 177.08
**Availability:** ✅ In Stock

## Summary

> 📡 Amplify Your Signal, Amplify Your Status

## Quick Answers

- **What is this?** Radioberry Preamp Board by aursinc
- **How much does it cost?** € 177.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/643763159-radioberry-preamp-board)

## Best For

- aursinc enthusiasts

## Why This Product

- Trusted aursinc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Power Up Your QRP Game:** Boost your Radioberry with a clean 3-5W HF amplifier for crisp, powerful signals.
- • **Wide Frequency Mastery:** Operate confidently across 1MHz to 50MHz, covering all essential HF bands.
- • **Open-Source Flexibility:** Customize and optimize your radio experience with full open-source support and community-driven innovation.
- • **Portable & Lightweight Design:** Perfect for field ops and minimalist shacks—take your SDR anywhere with ease.
- • **Seamless Raspberry Pi 4 Integration:** Designed specifically for Pi 4/4B, turning your SDR setup into a compact powerhouse.

## Overview

The AURSINC Radioberry Preamp Board V2 is a compact HF amplifier designed to enhance Radioberry SDR radios by delivering 3-5W output power across 1-50MHz frequencies. It seamlessly integrates with Raspberry Pi 4/4B setups via SMA connectors, offering a portable, plug-and-play solution for QRP enthusiasts seeking improved signal strength and versatility. Open-source and lightweight, it’s ideal for professionals and hobbyists aiming to elevate their SDR experience with customizable, field-ready performance.

## Description

desertcart.com: AURSINC Radioberry Preamp Board V2, A Addition to Turn The Radioberry into a Small QRP Radio, HF Power Output 3W-5W for HF Amplification (10W-100W PA), for Raspberry pi 4,4b : Electronics

Review: Works well, but... there is always a "but" - Got a replacement for one of my orders where one of the AFT504 Transistors were broken out of the box. That was a super fast replacement without may questions. Can't test the board yet, but looks better than all my orders before No cold soldering, all pins are short and will not poke the radioberry. The white pins are my soldering. so don't take them as a reference for aursincs work. but, there is always a "but". the wires on the transformer are a bit long this time. i think that might cost just some milliwatts. All in all, i'm very happy with aursinc. meanwhile i build over ten devices and only one part was defective after recivement. To the customers: Hint 1: Use cooling. A fan, a coling plate, whatever. Hint 2: The AFT504 is made for 7.5v, so don't use 8v for longer time without a hard cooling. You will just miss some milliwatts on 7.5v. To the producer: Please rebuild and add a solution to cool the transistors. Example; Just a hole between the two transitors, so we can screw a coling plate on it. And/ or, made them easier to replace. The AFT504 isn't a long live product. It's qite hard to resolder them. The white pins are my soldering. s don't take them as a reference for aursincs work. old review for preamp v2 (end of april 2025): New version, new order and new quality ( preamp v2): it is a amazing little amplifier. got the radioberry setup running on 4 - 5 watts on all hf bands. sadly the board has still no hole to screw a cooling plate on the transistors. maybe available on version 3 of this board. :) Cooling plate issue fixed by parts out of the scrap box. old review for preamp v1: It is my second order. Found lot of cold soldering. On the other hand some of the solder points are so big, example sma, that they connect to radioberry board when mounted. first order was "okay". At all: check before mounting and fix it or send it back. whatever.
Review: Works Good - Very nice product. BUT the instruction are not good, as well as the unreachable link to download the test file. I already connected it to my Radio berry, with the raspberry pi-4. and it works fine

## Features

- New Version V2: The output power of the amplifier board V2 is slightly higher than that of the previous version, with V2 reaching 3–5W. Technical Specs: Power in 6-8V (8.4V preferred); HF Power in: Tx from radioberry; HF Power out: 3-5W for for HF amplification. RF range: 1mhz-50mhz. Port Type: Input SMA, Output SMA. Supports SSB, FM, and AM
- Designed for Radioberry SDR: This radioberry preamp board V2 is a nice addition to turn the radioberry into a small QRP radio. Seamless compatibility with Radioberry boards, making it a clean plug-and-play-style expansion, increased capability for your Radioberry
- Amp board integrates with RPi 4: Pairs with Pi 4/4B for those building a Raspberry Pi-based QRP SDR radio, combining digital signal processing and radio functionality in a small form factor
- What's Inside: 1x Radioberry Preamp Board; 3x SMA cable (1 for Rx ,1 for Tx,1 for ANT); 1x 8V Battery-powered Wire; 1x Connecting Row Needle; 4x Screw and Nut; 8x Plastic Column. Compact & Lightweight: Ideal for portable SDR radio setups, field use, or minimalist shack builds
- How to Work: https:// jumbo5566 .github.io/pro/rb/2024/04/17/rb016_025 .html (Download the dedicated test image and run it directly for reception: http s://drive .google.com/file/d /1RzKAeha6EW8e4WeDlxpYBMPwdu-GsVZJ/view ?usp=drive_link)
- Notes for prolonged continuous transmission: The bias voltage needs to be adjusted, and a range of 2.4–2.5V is safe. Additionally, adding a small fan for heat dissipation is recommended for better performance. For WSPR, there’s a simpler method that can be achieved using an RP2040 + GPS. Please search for “RP2040 GPS” for details
- Important Note: A Certain Level of Professional Knowledge Is Required for the Use of This Product. This product is open-source. Our instructions only cover fundamental configuration. For extra functions and customized settings, further independent exploration is required. You may consult us for technical support

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D2HCW9KX |
| Best Sellers Rank | #4,001 in Single Board Computers (Computers & Accessories) |
| Brand | AURSINC |
| Built-In Media | NO |
| Compatible Devices | radioberry |
| Connectivity Technology | GPIO, USB |
| Customer Reviews | 4.0 out of 5 stars 27 Reviews |
| Included Components | NO |
| Item Dimensions L x W x H | 3.14"L x 1"W x 3.14"H |
| Manufacturer | AURSINC |
| Model Name | Radioberry Preamp Board |
| Model Number | Radioberry Preamp Board |
| Operating System | Linux |
| Processor Count | 1 |
| RAM Memory Technology | LPDDR4 |
| Total Usb Ports | 2 |
| Unit Count | 1 Count |
| Warranty Description | 6 months |
| Wireless Communication Standard | Radio Frequency |
| Wireless Compability | Radio Frequency |

## Product Details

- **Brand:** AURSINC
- **Connectivity Technology:** GPIO, USB
- **Included Components:** NO
- **Model Name:** Radioberry Preamp Board
- **Operating System:** Linux

## Images

![Radioberry Preamp Board - Image 1](https://m.media-amazon.com/images/I/711eCdTbPAL.jpg)
![Radioberry Preamp Board - Image 2](https://m.media-amazon.com/images/I/71UZTRQui6L.jpg)
![Radioberry Preamp Board - Image 3](https://m.media-amazon.com/images/I/71o0ggUXQ6L.jpg)
![Radioberry Preamp Board - Image 4](https://m.media-amazon.com/images/I/713odBRjayL.jpg)
![Radioberry Preamp Board - Image 5](https://m.media-amazon.com/images/I/71+PP61MwlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well, but... there is always a "but"
*by A***E on November 13, 2024*

Got a replacement for one of my orders where one of the AFT504 Transistors were broken out of the box. That was a super fast replacement without may questions. Can't test the board yet, but looks better than all my orders before No cold soldering, all pins are short and will not poke the radioberry. The white pins are my soldering. so don't take them as a reference for aursincs work. but, there is always a "but". the wires on the transformer are a bit long this time. i think that might cost just some milliwatts. All in all, i'm very happy with aursinc. meanwhile i build over ten devices and only one part was defective after recivement. To the customers: Hint 1: Use cooling. A fan, a coling plate, whatever. Hint 2: The AFT504 is made for 7.5v, so don't use 8v for longer time without a hard cooling. You will just miss some milliwatts on 7.5v. To the producer: Please rebuild and add a solution to cool the transistors. Example; Just a hole between the two transitors, so we can screw a coling plate on it. And/ or, made them easier to replace. The AFT504 isn't a long live product. It's qite hard to resolder them. The white pins are my soldering. s don't take them as a reference for aursincs work. old review for preamp v2 (end of april 2025): New version, new order and new quality ( preamp v2): it is a amazing little amplifier. got the radioberry setup running on 4 - 5 watts on all hf bands. sadly the board has still no hole to screw a cooling plate on the transistors. maybe available on version 3 of this board. :) Cooling plate issue fixed by parts out of the scrap box. old review for preamp v1: It is my second order. Found lot of cold soldering. On the other hand some of the solder points are so big, example sma, that they connect to radioberry board when mounted. first order was "okay". At all: check before mounting and fix it or send it back. whatever.

### ⭐⭐⭐⭐⭐ Works Good
*by N***I on March 13, 2026*

Very nice product. BUT the instruction are not good, as well as the unreachable link to download the test file. I already connected it to my Radio berry, with the raspberry pi-4. and it works fine

### ⭐⭐⭐⭐ Increased capability for your Radioberry, excellent customer service
*by A***D on August 10, 2025*

Once you get the thing running, it works really well. The vendor has updated the documentation since my original review, so it's better now. One of the nicest things over the base Radioberry, in addition to having enough power to be able to contact most stations you can hear, is the built-in T/R relay that lets you use a single antenna for transmit and receive. You definitely will need to use this in conjunction with a band pass filter, since there are tons of harmonics on the amplified signal (not a knock against the product, as this is common to amplifiers in general, but something to be aware of). I have been able to make FT8 contacts on every continent with this (previously, my most distant contact was about 2000 miles), so this little amplifier makes a big difference. My biggest issue is that I ran through all the HF bands on WSPR, and after about 20 minutes of near continuous transmitting, the amplifier transistors gave out. I was able to replace them fairly easily and get it working again, but I definitely wouldn't recommend this for near continuous use. Once I replaced the transistors, I backed the bias setting off a little bit in the hopes that it won't overload this time. Like the Radioberry project in general, this isn't a consumer appliance and you'll want to have some in-depth electronics and radio knowledge to really make use of this board. I will note that this works fine with a Radioberry on a Pi 4, and I did not have to use the Juice board and attach it via USB. **Update: I've been in contact with AURSINC's customer support following my original review and I must say they have been extremely helpful. They have updated the documentation with additional information and it now includes a schematic diagram. Based on conversation with them and my own experience, the board works perfectly fine for shorter digital mode transmissions like FT8 (I have had several multiple-hour FT8 sessions with the bias at 2.7v without failure), but the bias voltage must be backed off to a lower voltage (they recommended 2.4-2.5v as a safe level) if you're going to do longer periods of continuous digital transmission. In my own experience, the amplifier transistors will fail after 5 to 10 WSPR transmissions, even if those transmissions are several minutes apart. I can get a WSPR signal out around the world without the amplifier in any case, so I'm not overly worried about this, but it's good to know that it's a limitation.

## Frequently Bought Together

- AURSINC Radioberry Preamp Board V2, A Addition to Turn The Radioberry into a Small QRP Radio, Output 1.5W-3W for HF Power Ampfier (10W-100W PA), for Raspberry pi 4,4b
- DHT Electronics Handheld Antenna Cable SMA Male to UHF SO-239 Female Connectors 6'' Pack of 2 for Amplifier

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-07*