Horizon 433 Pro vs Basic CC1101: What the 433 MHz Upgrade Actually Changes
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PINGEQUA Lab · External CC1101 Guide · Verified August 2026
Horizon 433 Pro is PINGEQUA's 433 MHz-focused external CC1101 board for Flipper Zero. It uses an Ebyte E07-433M20S RF module built around TI's CC1101 with an integrated PA/LNA, plus a 4-layer carrier board, dedicated power/signal design and SMA antenna connection. It is intended for users whose work is centered on 433 MHz and who want a PA/LNA-equipped RF front end instead of a basic CC1101 breakout.
The most important thing to understand about Horizon 433 Pro is what it is not: it is not a magic “unlock every Sub-GHz frequency” board, and it is not a promise of a fixed real-world range. It is a purpose-built 433 MHz hardware path designed to improve the external-radio experience through RF architecture, antenna choice and board-level engineering.
Horizon 433 Pro vs the Flipper Zero's built-in Sub-GHz radio
Flipper Zero already has an internal CC1101 transceiver. Flipper's own documentation lists a maximum built-in Sub-GHz range of 50 meters, but that is a manufacturer-level maximum, not a guarantee for every remote, antenna orientation, protocol or environment.
Horizon does not replace the idea of CC1101—it adds a different RF front end around the same radio family. The external path gives you a 433 MHz-focused RF module with PA/LNA and a replaceable SMA antenna, which is where a compact built-in handheld radio has physical constraints.
| Area | Built-in Flipper Sub-GHz | Horizon 433 Pro |
|---|---|---|
| Transceiver family | CC1101 | CC1101 inside E07-433M20S |
| RF focus | Multi-band built-in Sub-GHz | 433 MHz-focused external path |
| Antenna | Internal fixed antenna | External SMA antenna |
| PA/LNA | Published built-in specs do not list an external PA/LNA front end | Integrated in E07-433M20S |
| Design goal | Compact all-in-one handheld | Dedicated 433 MHz external PA/LNA path |
The E07-433M20S is the key hardware difference
Ebyte specifies the E07-433M20S for 425–450.5 MHz operation, with a maximum 20 dBm transmit rating at the module level and a built-in PA/LNA around the CC1101 core.
Those numbers need context. Ebyte also publishes an ideal-condition distance test using maximum power, a 5 dBi antenna, a 2-meter antenna height and a 0.6 kbps air data rate. That is useful for understanding the RF module's design envelope, but it is not a guaranteed Horizon 433 Pro range claim on a Flipper Zero.
Real RF range changes with antenna match, legal power limits, data rate, modulation, noise floor, obstacles, receiver design, firmware and the device at the other end. A credible comparison should describe the hardware advantage without turning a vendor ideal-condition test into a universal field guarantee.
What the PINGEQUA carrier board adds
- a 4-layer carrier PCB built around the Flipper GPIO form factor;
- dedicated power conditioning for the RF module;
- protected/stabilized SPI signaling;
- PA/LNA control in the intended firmware workflow;
- TX/RX status indication;
- an SMA connector for a correctly matched 433 MHz antenna.
These are the observable hardware differences PINGEQUA uses to position Horizon above a basic external CC1101 board in its lineup.
Do you need custom firmware?
Not simply to recognize an external CC1101. Current Flipper documentation states that the official Sub-GHz application supports external CC1101 radio modules and can switch between internal and external radio hardware in Radio Settings.
For Horizon 433 Pro specifically, PINGEQUA recommends Momentum or Unleashed because the product is tuned around the firmware behavior used for its intended PA/LNA and external-radio workflow. That is a recommendation for the full product experience—not a claim that official firmware has zero external-CC1101 support.
Horizon 433 Pro vs a basic $24.99 CC1101 board
| Question | Basic CC1101 | Horizon 433 Pro |
|---|---|---|
| I only want an inexpensive external 433 MHz module. | Better fit | More hardware than you may need |
| I care about PA/LNA and a dedicated 433 MHz RF front end. | Depends on module | Designed for this |
| I want a simple Flipper GPIO board. | Yes | Yes |
| I want the lowest price. | $24.99* | $32.99* |
| I want the PA/LNA-equipped 433 MHz option. | Entry level | Better fit |
*Verified from PINGEQUA public product pages in August 2026; live prices can change.
Buy Horizon 433 Pro if: you specifically want the amplified E07-433M20S RF path, SMA antenna flexibility and PINGEQUA's dedicated power/signal design.
View Horizon 433 ProCompare basic CC1101
Horizon 433 Pro vs the RF Lab 2-in-1
Horizon 433 Pro is the focused choice when a PA/LNA-equipped 433 MHz Sub-GHz path is the priority. RF Lab 2-in-1 is the broader choice when you want both CC1101 Sub-GHz and nRF24-compatible proprietary 2.4 GHz hardware on a single module.
Why antenna matching matters more than “high gain” marketing
A physically large antenna is not automatically a better antenna. For a 433 MHz-focused board, use an antenna actually designed for that band. Connector quality, antenna tuning, placement and nearby structures can all influence real performance.
This is also why a 433 MHz Horizon should not be marketed as a universal 868/915 MHz performance module just because the underlying CC1101 family supports other bands.
Regional transmit restrictions still apply
Flipper Zero determines region-specific transmit permissions during firmware setup and blocks restricted frequencies. External hardware does not change your legal obligations. Frequency, power, duty cycle and application rules vary by region.
Use Horizon only with equipment and signals you are authorized to test, and do not treat the RF module's maximum hardware rating as permission to transmit at that power in every jurisdiction.
Compare basic CC1101, Horizon 433 Pro, dedicated nRF24 and the 2-in-1 board in the complete PINGEQUA RF buyer guide.
Read RF Module Buyer GuideBrowse RF ModulesFAQ
Does Horizon 433 Pro use a CC1101?
The E07-433M20S RF module used by Horizon is specified by Ebyte as a CC1101-based module with an integrated PA/LNA.
Is Horizon 433 Pro a 915 MHz module?
No. Horizon 433 Pro is built around the E07-433M20S, which Ebyte specifies for 425–450.5 MHz. It should be treated as a 433 MHz-focused product.
Does the official Flipper firmware support external CC1101?
Yes. Current official Flipper documentation states that the Sub-GHz application supports external CC1101 modules. PINGEQUA still recommends compatible third-party firmware for Horizon's intended amplified workflow.
How much farther will Horizon work than the built-in radio?
There is no responsible single number for every environment. Actual range depends on both ends of the link, antenna, firmware, noise, obstacles, modulation, data rate and regulatory settings.
Should I buy Horizon or the 2-in-1?
Choose Horizon if 433 MHz Sub-GHz is the priority. Choose the 2-in-1 if you want both CC1101 Sub-GHz and nRF24-compatible proprietary 2.4 GHz hardware on one board.
Primary sources
Flipper Zero Sub-GHz documentation · Flipper regional frequency documentation · TI CC1101 specifications · Ebyte E07-433M20S specifications