---
product_id: 373063660
title: "B-Tech AMP-U25 Amplifier | 20-40W Power Boost for UHF (400-480MHz) | Compatible with Handheld Radios | Amplifies Analog and Digital Modes | Ideal for Mobile, Field, & Home Use"
brand: "b-tech"
price: "R7308"
currency: ZAR
in_stock: true
reviews_count: 5
category: "B Tech"
url: https://www.desertcart.co.za/products/373063660-b-tech-amp-u25-amplifier-20-40w-power-boost-uhf
store_origin: ZA
region: South Africa
---

# 20-40W power boost Plug & play universal compatibility Built-in protection circuitry B-Tech AMP-U25 Amplifier | 20-40W Power Boost for UHF (400-480MHz) | Compatible with Handheld Radios | Amplifies Analog and Digital Modes | Ideal for Mobile, Field, & Home Use

**Brand:** b-tech
**Price:** R7308
**Availability:** ✅ In Stock

## Summary

> 🚀 Power up your signal, own the airwaves!

## Quick Answers

- **What is this?** B-Tech AMP-U25 Amplifier | 20-40W Power Boost for UHF (400-480MHz) | Compatible with Handheld Radios | Amplifies Analog and Digital Modes | Ideal for Mobile, Field, & Home Use by b-tech
- **How much does it cost?** R7308 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/373063660-b-tech-amp-u25-amplifier-20-40w-power-boost-uhf)

## Best For

- b-tech enthusiasts

## Why This Product

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

## Key Features

- • **All-Inclusive Kit:** Comes complete with amplifier, mounting bracket, cables, and speaker microphone—everything you need to power up instantly.
- • **Extend Your Reach:** Amplify your handheld radio’s signal up to 40W for crystal-clear communication across mobile, field, or home setups.
- • **Proudly USA-Engineered:** Benefit from dedicated American engineering and support, guaranteeing quality and peace of mind with every transmission.
- • **Seamless Compatibility:** Works effortlessly with top brands like BTECH, BaoFeng, Kenwood, Yaesu, ICOM, and Motorola—no tech headaches, just plug & play.
- • **Clean & Durable Performance:** Advanced harmonic filters and protection circuitry ensure pure output and long-lasting reliability under any conditions.

## Overview

The BTECH AMP-U25 is a compact, high-performance amplifier designed to boost handheld radio output from 2-6W up to 20-40W within the 400-480 MHz UHF band. Compatible with major radio brands and modes (analog & digital), it includes all necessary accessories for quick setup and features advanced filtering and protection for clean, reliable communication. Ideal for professionals needing extended range in mobile, field, or base station environments, backed by USA-based engineering and support.

## Description

Technical Details: • Frequency range: ◦ AMP-U25 : 400 – 480 MHz • Power supply: 13.8 VDC (±15%), 5.5 A maximum • Input RF power: 2 - 6W (±10%) • Output RF power: 20 - 40W • Size: 5.5-in D x 4.5-in. W x 1.4-in. H (40 mm D x 115 mm W x 36 mm H) • Net weight: 1.8 lbs. (800 g) The BTECH AMP-25 Series is designed to work with any BaoFeng or BTECH handheld transceivers, but it will also work with any handheld radio that outputs 2 W – 6 W with the appropriate cable. With the included Radio to Amplifier RF Cable, the amplifier will also work with Wouxun transceivers, some TYT transceivers, and some Kenwood transceivers. If the supplied cables do not connect to your radio, you will need to use adaptors or build cables with the appropriate connectors. Your BTECH AMP-25 amplifier does not include an antenna. It is very important to not transmit without an antenna or dummy load connected to the ANT connector on the rear panel of the amplifier. Transmitting without an antenna or dummy load may cause harm to the radio equipment. When choosing an antenna, make sure that it is suitable for the bands you plan on transmitting and receiving on. For example, if you plan on transmitting on 145MHz, make sure that the antenna you select has an SWR of 1.5:1 or less on that frequency. Using an antenna with an SWR greater than 1.5:1 could damage the amplifier. If you plan to use a magnetically-mounted (mag-mount) antennas, ensure that the antenna is grounded to a metal surface, such as a vehicle body. Magnetically-mounted antennas do not operate properly without a good ground.

Review: Haven’t had a chance to test the power output yet, but I bought all three bands. Thanks BTECH! Keeping the bands separate allows for frontend and backend filtering to be unique for each band, as an engineer I really appreciate this aspect. I will post again photo once I have the triplexer bandpass filtering attached to the backend of a stack of all three of these, this will allow UV 5 and the like with poor filtering to latch onto signals with higher gain from base station antennas (selectivity/rejection), and actually benefit from better antennas, with a much smaller amount of attenuation on the front to keep them from becoming overwhelmed lol. Note: all radios exhibit this to some degree and can benefit from additional filtering, even superhet frontend radios. **UPDATE all amplifiers tested fine for power, from 20/25w VHF (my radios have lower power there most do) to 70w on 444mhz UHF!. Anyone having issues and or blowing these is probably unlicensed because if you were you would know SWR being too high will do that to any gear, it’s pretty low for these (1.5 max in the manual) just test antennas and be careful the UT-72 Nagoya they recommend is 1.1 on UHF but 2.2 on VHF, so WILL damage the AMP V25. I will post again if I check these bad boys for spectral purity.
Review: This thing really performs. Get ready to turn all your handheld radios into a mobile or base. I would recommend this product as durable and quality. Get great report back on my signal. What are you waiting on get one

## Features

- Enhanced Communication Range: Transform your handheld radio into a high-power device for mobile, field, or base use with the BTECH AMP-U25, ensuring clear, extended range communication.
- Universal Compatibility: Seamlessly connects with popular handheld radio brands including BTECH, BaoFeng, Kenwood, Yaesu, ICOM, and Motorola, with a simple plug-and-play setup.
- Comprehensive Kit: Includes everything you need - Amplifier, Mounting Bracket, Cables, and a Speaker Microphone, for a hassle-free experience right out of the box.
- Advanced Features: Features harmonic filters for cleaner output, protection circuitry for enhanced durability, and a built-in loudspeaker for clear audio, making it a versatile tool for any radio enthusiast.
- BTECH is proud to be in the USA, which allows you to have the best available local support for any issue that may arise. BTECH only engineers and develops radio products. That brand focus allows you to have the best available radios and accessories with the most features, with real USA warranty and support.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BD3Z1ZK |
| Item model number | AMP-U25 |
| Manufacturer | BTECH |
| Product Dimensions | 13.97 x 11.43 x 3.56 cm; 816.47 g |

## Product Details

- **Item dimensions L x W x H:** 14 x 11.4 x 3.6 centimeters
- **Manufacturer:** BTECH
- **Maximum supply voltage:** 14.04 Volts (DC)
- **Minimum supply voltage:** 13.8 Volts
- **Voltage:** 13.8 Volts

## Images

![B-Tech AMP-U25 Amplifier | 20-40W Power Boost for UHF (400-480MHz) | Compatible with Handheld Radios | Amplifies Analog and Digital Modes | Ideal for Mobile, Field, & Home Use - Image 1](https://m.media-amazon.com/images/I/71L3GG38n3L.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***. on 27 December 2024*

Haven’t had a chance to test the power output yet, but I bought all three bands. Thanks BTECH! Keeping the bands separate allows for frontend and backend filtering to be unique for each band, as an engineer I really appreciate this aspect. I will post again photo once I have the triplexer bandpass filtering attached to the backend of a stack of all three of these, this will allow UV 5 and the like with poor filtering to latch onto signals with higher gain from base station antennas (selectivity/rejection), and actually benefit from better antennas, with a much smaller amount of attenuation on the front to keep them from becoming overwhelmed lol. Note: all radios exhibit this to some degree and can benefit from additional filtering, even superhet frontend radios. **UPDATE all amplifiers tested fine for power, from 20/25w VHF (my radios have lower power there most do) to 70w on 444mhz UHF!. Anyone having issues and or blowing these is probably unlicensed because if you were you would know SWR being too high will do that to any gear, it’s pretty low for these (1.5 max in the manual) just test antennas and be careful the UT-72 Nagoya they recommend is 1.1 on UHF but 2.2 on VHF, so WILL damage the AMP V25. I will post again if I check these bad boys for spectral purity.

### ⭐⭐⭐⭐⭐ Review
*by G***R on 16 September 2025*

This thing really performs. Get ready to turn all your handheld radios into a mobile or base. I would recommend this product as durable and quality. Get great report back on my signal. What are you waiting on get one

### ⭐⭐⭐⭐⭐ Review
*by D***N on 27 July 2020*

This has helped me greatly when used with a gmrs application. Has extended my range to 20-30 miles. Very good product.

## Frequently Bought Together

- BTECH AMP-U25 Amplifier | 20-40W Power Boost for UHF (400-480MHz) | Compatible with Handheld Radios | Amplifies Analog and Digital Modes | Ideal for Mobile, Field, & Home Use
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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-22*