Have you ever had that moment—standing in the lab surrounded by a pile of 'metal boxes': oscilloscopes, signal generators, spectrum analyzers—each expensive, bulky, and highly context-dependent? You want to build a quick prototype, but just connecting cables, aligning frequencies, and tuning impedances eats up half a day. By the time the signal finally appears, your inspiration has long frozen into an ice pop.
What stings even more is that most of these instruments are 'homebodies'—they collectively 'go on strike' the moment you step outside the lab or into the field. Want to capture real-world signals in the field? Sorry—you’ll need to push a cart, haul batteries, and lug cables, looking like a mobile data center on a business trip.
Dayao Technology’s (DYAO) answer is refreshingly straightforward: flatten that metal box—make it thin, lightweight, and pocketable inside your coat.
Thus, the RF320 was born: a board measuring just 180 × 130 × 39 mm and weighing less than half a kilogram. It’s the most un-instrument-like—and yet most capable—portable all-rounder in Dayao’s Tianyu Series.
While others keep making equipment pricier and bulkier, Dayao is ‘pushing’ Software-Defined Radio (SDR) into something you can literally carry in your hand.
📡 Advantage 1: Absurdly wide frequency range—1 MHz to 18 GHz
From longwave and shortwave to microwaves—from AM broadcast, FM radio, and Wi-Fi to the edge of 5G bands—a single board covers it all.
Unlike some devices confined to narrow, fixed bands, the RF320 is an 'all-you-can-eat' player: its base configuration spans 1 MHz–6 GHz—covering the vast majority of everyday use cases—while its extended variant reaches up to 18 GHz, capturing everything up to the Ku-band.
For signal reconnaissance, protocol analysis, or electromagnetic environment teaching demonstrations, no hardware swap is needed—just change the frequency, and you’ve 'tuned into another channel of the world.' One RF320 replaces three conventional instruments; even procurement budgets smile at the savings.
👝Advantage 2: Small enough to fit in your coat pocket
180 mm × 130 mm × 39 mm, weight ≤ 0.5 kg. How small is that? Thinner than a *Modern Chinese Dictionary*, light enough to hold comfortably in one hand—effortlessly fitting into fall/winter coat pockets.
It transforms 'portability'—a marketing slogan—into a tangible physical reality: mount it on a car window, elevate it for fixed observation, or deploy it temporarily anywhere. Just pick it up and go—no carts, no cable reels, no three-person lifting crew required.
Next time you head to the field, your backpack can hold not only your water bottle—but also a full 'spectrum laboratory.'
👂 Advantage 3: Crystal-clear visibility and fidelity
12-bit ADC/DAC delivers fine-grained sampling resolution—capturing even subtle signal 'glitches' with exceptional clarity; an 8 dB noise figure ensures weak signals aren’t buried under its own noise floor.
In plain English: whispers other devices can’t hear, the RF320 hears; faint signals that appear as blurry smudges on competitors’ screens, the RF320 renders in crisp, pixel-perfect detail.
For EMC troubleshooting or weak-signal acquisition, SNR *is* productivity—the RF320 slashes this barrier down to floor level.
⚡ Advantage 4: 56 MHz instantaneous bandwidth—capture broad swaths in one go
Many entry-level SDRs hit bandwidth bottlenecks—wider signal views require stitching, trade-offs, and often result in misaligned segments and lost data.
The RF320 delivers 56 MHz of instantaneous bandwidth outright—enabling true 'one-shot' capture of entire signal segments: wideband frequency-hopping, multi-carrier aggregation, or full Wi-Fi channel bands—all acquired in a single sample.
Efficiency is an engineer’s most expensive resource. Replace the tedious 'stitch + align + pray' workflow with a single 'record' click—what you save isn’t just time—it’s hair.
🧠 Advantage 5: Open-source ecosystem + domestic core—dual buffs fully stacked
The RF320 runs on the globally open-source GNU Radio SDR ecosystem—you can directly reuse your own flowgraphs and community-contributed modules; a decade of accumulated algorithm libraries is effectively a free 'external brain.'
Simultaneously, it’s powered by Dayao’s self-developed 'Tiangong Core Engine (DY-TGRadio)' for domestic adaptation and performance optimization: localized drivers, smoother interfaces, and key parameter tuning specifically tailored to Chinese academic and engineering scenarios.
You get both the openness and freedom of the open-source world—and the security and control of sovereign technology. This dual-buff combo is rock-solid.
Who is it for?
- University faculty: Need a 'pocket lab'? The RF320 supports the full wireless curriculum—from freshman orientation labs to capstone design projects—eliminating scheduling conflicts over limited lab time.
- Researchers: Rapidly prototype, tune waveforms, and validate algorithms—no more waiting months for procurement cycles. Inspiration strikes? Run it today.
- Field engineers: Portable spectrum monitoring, ad-hoc deployment, and mobile signal detection—grab-and-go. This time, you really don’t need to carry the server room key.
- Radio hobbyists: Want to truly 'hear' the radio waves around you—delivery locker remotes, neighbors’ temperature/humidity sensors, aircraft ADS-B broadcasts? This is a high-value, low-barrier entry point—affordable, flexible, and endlessly fun.
🥊 Quick comparison with its 'siblings'
The RF320 isn’t a lone hero—it’s the 'portable all-rounder' of Dayao’s Tianyu Series. Three siblings round out the family—each excelling in different roles:
- RF210RF210: Entry-level choice—240×140×65 mm, 0.7 kg, high cost-performance ratio, ideal for budget-conscious users and large-scale classroom deployments.
- RF310RF310: Higher performance (160 MHz bandwidth, up to 18 GHz), but larger (2.2 kg)—best suited for heavy desktop workloads and fixed lab stations.
- RF320RF320: Compact, lightweight, and fully capable—180×130×39 mm, ≤0.5 kg, same wide frequency coverage—your top choice for on-the-go and field-deployable applications.
- RF325RF325: Bandwidth beast—500 MHz instantaneous bandwidth, 2×2 MIMO (two transmit/two receive), benchmarked against USRP N321; features an aluminum matte anti-shock enclosure, measures 380×230×50 mm, weighs ≤4 kg—this is the 'performance ceiling' for desktop lab setups, engineered for high-bandwidth, multi-channel heavy-duty tasks.
- RF210 / RF310 / RF320 / RF325—the four brothers of Dayao’s Tianyu Series offer flexibility across budgets and needs. There’s always one that fits you.
✨ One-sentence summary
If you’re searching for a Software-Defined Radio (SDR) device that 'works anywhere, takes up almost no space, and understands the entire spectrum'—meet theRF320—the most travel-ready member of Dayao’s Tianyu Series.
Dayao Technology · Tianyu Series — Making radio smaller, and closer.
If you’re also interested in our RF320 (Click here to view RF320 specifications directly), feel free to leave a comment—or scan the QR code at the end of this article to contact a Dayao technical engineer directly. Whether you need selection advice, secondary development support, or custom requirements, Dayao’s engineers are eager to help turn your ideas into tangible, handheld reality.
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