---
product_id: 518559059
title: "Great Scott Gadgets’ Opera Cake – Antenna Switching Add-On Board for HackRF One and Other Software Defined Radios"
brand: "generic"
price: "$853.07"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/518559059-great-scott-gadgets-opera-cake-antenna-switching-add-on-board
store_origin: EC
region: Ecuador
---

# 1MHz-4GHz frequency range 1x8 or dual 1x4 antenna switching CLI-configurable automation Great Scott Gadgets’ Opera Cake – Antenna Switching Add-On Board for HackRF One and Other Software Defined Radios

**Brand:** generic
**Price:** $853.07
**Availability:** ✅ In Stock

## Summary

> 🎛️ Elevate your SDR game with Opera Cake — where precision meets power!

## Quick Answers

- **What is this?** Great Scott Gadgets’ Opera Cake – Antenna Switching Add-On Board for HackRF One and Other Software Defined Radios by generic
- **How much does it cost?** $853.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/518559059-great-scott-gadgets-opera-cake-antenna-switching-add-on-board)

## Best For

- generic enthusiasts

## Why This Product

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

## Key Features

- • **Open-Source Friendly:** Backed by robust documentation and Linux compatibility to fuel your SDR innovation.
- • **Compact Powerhouse Design:** Lightweight 118g add-on that stacks directly on your HackRF One for sleek integration.
- • **Dynamic Antenna Switching:** Switch effortlessly between 8 antennas or two sets of 4 for precision signal control.
- • **Seamless Multi-Band Mastery:** Covers an expansive 1MHz to 4GHz spectrum for ultimate SDR versatility.
- • **Automated Command-Line Control:** Configure manually or automate switching by frequency or time for hands-free operation.

## Overview

Great Scott Gadgets’ Opera Cake is a compact antenna switching add-on board designed for the HackRF One and other SDRs, supporting a wide frequency range of 1MHz to 4GHz. It offers flexible 1x8 or dual 1x4 antenna switching, configurable via command-line interface for manual or automated control. Lightweight and optimized for seamless stacking, Opera Cake empowers advanced radio frequency experimentation with open-source Linux support.

## Description

Great Scott Gadgets’ Opera Cake – Antenna Switching Add-On Board for HackRF One and Other Software Defined Radios

## Features

- Opera Cake is an antenna switching add-on board designed to sit directly on top of the HackRF One
- Opera Cake has a recommended frequency range of 1MHz - 4GHz
- It is optimized for use as a single 1x8 switch, or as a pair of 1x4 switches. It can be configured via command-line software either manually or through automation (either frequency or time)
- Please note that this product is not physically compatible with the plastic enclosure sold with the HackRF, nor with the aluminum enclosure we sell for the HackRF
- Opera Cake documentation: https://hackrf.readthedocs.io/en/latest/opera_cake.html

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Generic |
| Package Dimensions | 17.7 x 11.3 x 3.2 cm; 118 g |
| Item model number | 100844 |
| Manufacturer | Great Scott Gadgets |
| Series | Opera Cake |
| Screen Resolution | 1024x768 |
| Resolution | 1024x768 |
| Processor Brand | ARM |
| Processor Type | Cortex |
| Processor Count | 1 |
| Memory Technology | EEPROM |
| Computer Memory Type | DDR SDRAM |
| Hard Disk Description | No Hard Disk |
| Hard Drive Interface | EIO |
| Graphics Card Description | Integrated |
| Graphics RAM Type | EEPROM |
| Graphics Card Interface | Integrated |
| Connectivity Type | Wi-Fi |
| Wireless Type | Radio Frequency |
| Number of HDMI Ports | 1 |
| Operating System | Linux |
| Are Batteries Included | No |
| Item Weight | 118 g |
| Guaranteed software updates until | unknown |

## Product Details

- **Brand:** Generic
- **Operating system:** Linux
- **CPU model:** Cortex
- **Graphics card description:** Integrated
- **Specific uses for product:** Antenna Switching, Software Defined Radio
- **Personal computer design type:** Mini PC
- **Model name:** Opera Cake
- **Included components:** Add-On Module
- **Special feature:** Radio
- **CPU manufacturer:** ARM

## Images

![Great Scott Gadgets’ Opera Cake – Antenna Switching Add-On Board for HackRF One and Other Software Defined Radios - Image 1](https://m.media-amazon.com/images/I/61JvtHvPYTL.jpg)

## Frequently Bought Together

- Great Scott Gadgets’ Opera Cake – Antenna Switching Add-On Board for HackRF One and Other Software Defined Radios
- NooElec RF EMI Shield & Board-Level Kit for HackRF One
- Nooelec Lana - Ultra Low-Noise Amplifier (LNA) Module for RF & Software Defined Radio (SDR) with Enclosure & Accessories. Wideband 20MHz-4000MHz Frequency Capability with Bias Tee & USB Power Options

---

## 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.ec/products/518559059-great-scott-gadgets-opera-cake-antenna-switching-add-on-board](https://www.desertcart.ec/products/518559059-great-scott-gadgets-opera-cake-antenna-switching-add-on-board)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-29*