GSG-Opera-Cake

SKU: GSG-OPERA-CAKE

Antenna-switching board for SDRs that automates port routing by frequency or time across 1 MHz to 4 GHz, optimised for multi-antenna sweeps.

$309.95 AUD, inc GST

$281.77 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Delivered by Tue, 23rd of Sep

Switch antennas in software, not with a spanner. Opera Cake is the antenna-switching add-on for HackRF One that makes multi-antenna SDR workflows fast, neat, and repeatable.

Use it to automate port selection by frequency or time, route TX to the right antenna and inline RF hardware, and even switch antennas mid-sweep for wideband spectrum scans with hackrf_sweep. Its architecture supports either one 1x8 or two 1x4 switching topologies, giving you flexible RF plumbing without touching a cable. ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))

Great Scott Gadgets Opera Cake antenna switch add-on board for HackRF One showing SMA ports and board headers

Technical Specifications

Purpose: antenna switching add-on board for HackRF One.
Switch topology: two primary ports selectable to any of eight secondary ports; optimised as 1x8 or dual 1x4. ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))
Recommended frequency range: 1 MHz to 4 GHz. ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))
Control: command-line configuration; manual switching or automated by frequency or time. ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))
TX integration: can auto-route HackRF One transmit output to selected antennas and external filters, amplifiers, etc. ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))
Spectrum analysis: compatible with hackrf_sweep; supports automatic antenna changes mid-sweep. ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))
Software impact: no changes required to existing SDR applications; full host control available. ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))

Additional Resources

Great Scott Gadgets Opera Cake product page (overview, resellers, support): https://greatscottgadgets.com/hackrf/operacake/ ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))
Great Scott Gadgets Opera Cake documentation on Read the Docs: https://hackrf.readthedocs.io/en/latest/opera_cake.html ([hackrf.readthedocs.io](https://hackrf.readthedocs.io/en/latest/opera_cake.html?utm_source=openai))
Opera Cake hardware design files (GitHub): https://github.com/greatscottgadgets/hackrf/tree/master/hardware/operacake ([greatscottgadgets.com](https://greatscottgadgets.com/hackrf/operacake/))
Opera Cake news and updates (Great Scott Gadgets blog): https://greatscottgadgets.com/tags/hackrf/ ([greatscottgadgets.com](https://greatscottgadgets.com/tags/hackrf/?utm_source=openai))

What’s Included

Opera Cake antenna switching add-on board for HackRF One.

Product Comments

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We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

40 Aruma Place
Cardiff
NSW, 2285
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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