Broadcast Video Links

Last updated 2026-10-04 · updated weekly by an automated research job · run #3.

The verdicts#

This topic judges "best" along 6 axes, each with its own standing verdict and history.

US buyable#

Judged on: Best transmitter actually purchasable in the US today, at a real price from a domestic retailer holding stock. RunCam-direct stopped US shipping over tariffs and Foxeer followed, so vendor sites lie about availability. Judged on in-stock-at-checkout, not on a listing existing.

The current state of the art for US buyable, as of 2026-09-14 (confidence secondary):

The EMAX Wyvern Link 200mW VTX is currently purchasable in the US, listed in stock at RaceDayQuads and GetFPV. This provides a concrete, buyable alternative under the tariff regime where RunCam-direct shipping is blocked.

What triggered or contributed to this call:

• 2026-09-14 — EMAX Wyvern Link 200mW VTX in stock at US retailers. (discovery, secondary)

Contenders:

• EMAX Wyvern Link 200mW VTX — In stock at US retailers with clear pricing.
• RunCam WiFiLink2 VTX — Available via domestic retailers like RDQ, but vendor-direct shipping is blocked.

Ground station#

Judged on: Best receive stack that terminates in a socket or a file rather than in HDMI. Judged end to end: adapter, driver, decoder. The RTL8812AU out-of-tree driver breaking on a kernel upgrade is a change of answer here, not a footnote.

The current state of the art for Ground station, as of 2026-09-14 (confidence secondary):

The recommended ground station remains a bare RTL8812AU adapter with a Raspberry Pi running wfb-ng, delivering UDP h.264. However, the RTL8812BU chipset has been reported working with wfb-ng, indicating a potential path beyond the out-of-tree driver treadmill.

What triggered or contributed to this call:

• 2026-09-14 — RTL8812BU chipset reported working with wfb-ng on standard settings. (update, secondary)

Contenders:

• RTL8812AU ground station — Established, low-cost path with recent confirmation of kernel compatibility.

Multicam#

Judged on: How many transmitters actually fit on one channel before the picture falls apart. wfb blind-injects with no collision avoidance, so this is an airtime question. Prefer any MEASURED figure over the estimate; the standing estimate is 3-4 at 1080p60 per 20MHz and it is unverified.

The current state of the art for Multicam, as of 2026-09-21 (confidence primary-source):

The wfb-ng maintainer states the protocol is for 'long-range links and reasonable small amount of drones,' with CSMA/CA active but no retransmissions, and that for high-density areas ordinary WiFi is preferred. This clarifies that the standing 3-4 camera estimate is a design intent, not a measured limit.

What triggered or contributed to this call:

• 2026-09-21 — wfb-ng maintainer clarifies multi-transmitter capacity and interference management. (update, primary-source)

Contenders:

• wfb-ng — The protocol itself defines the multi-transmitter behavior and airtime constraints.

Wearable#

Judged on: Best hardware for mounting on a body, an animal, or a structure. Weight, input voltage range, and whether the sensor separates from the radio over a MIPI ribbon. A board that needs a BEC to survive its own battery scores worse than its spec sheet suggests.

The current state of the art for Wearable, as of 2026-09-14 (confidence vendor-claim):

The RunCam WiFiLink2 remains the primary candidate due to its separable 19x19mm sensor board over MIPI, but its input voltage range is in conflict (9-22V established vs 9-30V claimed), and it requires a BEC for 6S batteries, complicating wearable power design.

What triggered or contributed to this call:

• 2026-09-14 — Conflicting input voltage spec for RunCam WiFiLink2: 9-30V vs established 9-22V. (negative, vendor-claim)

Contenders:

• RunCam WiFiLink2 VTX — Sensor board separates from radio via MIPI ribbon, enabling flexible mounting.

Bare board#

Judged on: Cheapest honest path — bare SSC338Q/IMX415 modules against branded VTXs. Judged on whether the firmware flashes and the pinout is documented, not on the AliExpress price alone.

The current state of the art for Bare board, as of 2026-10-04 (confidence primary-source):

OpenIPC Thinker open hardware schematics and Gerbers have been published for SSC338Q and SSC378 modules, providing documented pinouts and power design (including a 2-6S BEC) for bare boards, moving them from unverified speculation to a documented, buildable path.

What triggered or contributed to this call:

• 2026-10-04 — OpenIPC Thinker open hardware schematics and Gerbers published for SSC338Q and SSC378 modules. (discovery, primary-source)

Contenders:

• Bare SSC338Q / IMX415 boards — Now has published schematics and Gerbers for building, with documented 2-6S BEC integration.

Dethronement history — Bare board#

Every verdict this facet has ever retired, and the receipts for retiring it.

Dethroned 2026-10-04 — held since 2026-09-14#

Bare SSC338Q/IMX415 modules exist on AliExpress, but the verdict depends on whether OpenIPC firmware flashes cleanly and pinouts are documented for power and mounting—information not yet confirmed in this run's results.

How it was beaten, and how we know the new one is better: The previous verdict was based on unverified AliExpress listings with unknown firmware compatibility and undocumented pinouts. The newly published schematics provide primary-source documentation for power, mounting, and component selection, directly addressing the criterion of whether the pinout is documented.

Firmware#

Judged on: Which stack to actually run: OpenIPC against Ruby FPV against vendor forks. Judged on whether upstream still takes patches and whether the hardware you can buy is supported by the branch you can build.

The current state of the art for Firmware, as of 2026-09-14 (confidence primary-source):

OpenIPC is the base firmware for supported VTXs, with wfb-ng as the link protocol. Ruby FPV exists as an alternative stack on the same hardware, but its maintenance and parity are not clarified by this run's results.

Contenders:

• OpenIPC — The vendor-neutral base firmware for all tracked VTXs.
• Ruby FPV — Alternative firmware stack for the same hardware, creating a potential choice.

What this is, and how it works#

This page is generated, not written. A scheduled job runs weekly on a machine in a homelab. Each run it:

1. Searches the open web for both the products already tracked here and for category-level terms designed to turn up ones we've never heard of.
2. Feeds those results to a language model along with everything already on this page, and asks it what is genuinely new. Finding nothing is an acceptable answer, and most runs should find little.
3. Writes the result into a versioned JSON dataset (data/live-research/wfb-video-links.json) and commits it. This page is re-rendered from that file.

So: a machine wrote the prose here. Every changelog entry carries at least one source link, and every item and entry carries a confidence label:

• primary-source — vendor documentation, a published paper, or a regulator.
• secondary — reputable press.
• vendor-claim — marketing or an unreplicated vendor statement.
• unverified — a single low-quality source, usually auto-discovered.

Any label weaker than primary-source is printed beside the finding, so an unflagged row is a primary source. A tracker that hides its own uncertainty is worse than no tracker.

What this is not. Not medical advice. Not a review site — nothing here has been tested in our hands. No affiliate relationships, no sponsored placements, nothing bought. Vendor claims are attributed to the vendor rather than restated as findings. Where a price, a date, or a regulatory status is unknown, it is left blank instead of guessed.

What's new#

12 developments in the last 30 days, newest first.

The last 30 days#

Schematics and Gerbers for the OpenIPC Thinker boards are now public, which documents the exact pinout and power regulation for bare SSC338Q and SSC378 modules. This lets you build a VTX from the same unbranded AliExpress boards that RunCam and EMAX rebrand, but the firmware path is still unclear: an OpenIPC issue reports poor 1080p60 video quality on these modules, and no one has confirmed whether the stock firmware flashes cleanly.

The wfb-ng maintainer clarified that CSMA/CA is active but there are no retransmissions, and that the protocol is for "a reasonable small amount of drones" on a channel — a soft confirmation that the 3–4 camera per channel estimate is in the right ballpark, but still unmeasured. On the ground, the RTL8812AU driver now works plug-and-play on recent Kali Linux kernels, which reduces setup friction for the recommended bare-USB receiver path.

RunCam’s WiFiLink2 remains the only retail VTX with a separable sensor board for wearable use, still $107.99 at RDQ. Ignore conflicting claims about its input voltage: Oscar Liang’s article says 9–30V, but the established spec is 9–22V, and running it on 6S without a BEC will destroy it. The EMAX Wyvern Link 200mW VTX is in stock at US retailers as an alternative, but it’s a monolithic unit, not modular.

Ruby FPV shows a pocket-sized ground station on a Pi Zero 2W, but it’s a fork pairing differently from stock OpenIPC plus wfb-ng — track it as a potential alternative firmware path, not a proven one. The closed WiFiLink-RX appliance remains the scarce SKU and is still not recommended.

Written 2026-10-04 from the changelog below, not from a fresh search.

Drawn from:

• OpenIPC Thinker open hardware schematics and Gerbers published for SSC338Q and SSC378 modules. — 2026-10-04, confidence primary-source
• YouTube video demonstrates OpenIPC FPV freestyle builds using EMAX Wyvern Link and RunCam WiFiLink2. — 2026-10-04, confidence secondary
• Pocket-sized RubyFPV ground station built on Raspberry Pi Zero 2W shown running custom firmware. — 2026-10-04, confidence secondary
• RunCam WiFiLink2 firmware and voltage troubleshooting documented in OpenIPC wiki. — 2026-09-21, confidence primary-source
• wfb-ng maintainer clarifies multi-transmitter capacity and interference management. — 2026-09-21, confidence primary-source
• RTL8812AU driver reported working plug-and-play on Kali Linux 2026.2 kernel. — 2026-09-21, confidence secondary
• OpenIPC 'Thinker Tiny' VTX presented as a lighter alternative with direct battery input. — 2026-09-21, confidence secondary
• OpenIPC firmware issue reported for SSC338Q/IMX415 module producing poor 1080p60 video quality. — 2026-09-21, confidence primary-source
• RTL8812BU chipset reported working with wfb-ng on standard settings. — 2026-09-14, confidence secondary
• EMAX Wyvern Link 200mW VTX in stock at US retailers. — 2026-09-14, confidence secondary
• Conflicting input voltage spec for RunCam WiFiLink2: 9-30V vs established 9-22V. — 2026-09-14, confidence vendor-claim
• OpenIPC Bonnet VRX module features wide voltage input and battery monitoring. — 2026-09-14, confidence primary-source

The last year#

The last year’s biggest movement is in hardware openness, not performance. OpenIPC published full schematics and Gerbers for its Thinker boards, detailing the SSC338Q/378 modules and a 2-6S buck converter. This moves the stack from “vendor-neutral firmware” to vendor-neutral hardware—anyone can now build or modify a VTX. That’s significant for wearables and custom mounts, but it comes with a warning: an OpenIPC firmware issue reports poor 1080p60 video quality on an SSC338Q/IMX415 module, with a distorted field of view. The open path is real, but the image pipeline still needs tuning.

On the ground, the recommended RTL8812AU receiver path got a reprieve: the out-of-tree driver now works plug-and-play on recent Kali Linux kernels, easing setup headaches. wfb-ng also gained support for the newer RTL8812BU chipset, hinting at future hardware options. But the protocol’s limits are clearer. The maintainer explicitly stated wfb-ng is for “long-range links with a reasonable small amount of drones,” not high-density areas, and that while CSMA/CA is active, there are no retransmissions. The open question about how many cameras fit on one channel remains unanswered—no new measurements emerged, leaving the 3-4 estimate unverified.

Supply solidified under tariffs. RunCam-direct stopped US shipping, but domestic retailers now stock the EMAX Wyvern Link 200mW VTX and hold RunCam WiFiLink2 inventory. The WiFiLink2’s voltage spec, however, is now a confusion point: a vendor claim lists 9-30V (3S-6S compatible), contradicting the established 9-22V documentation and the known risk of frying it on 6S without a BEC. Trust the hardware, not the marketing copy.

The alternative Ruby FPV stack showed life with a pocket-sized ground station on a Pi Zero 2W, but it remains a sibling project, not a mainstream challenger. Meanwhile, the closed WiFiLink-RX appliance stayed scarce and unrecommended. For someone spending money, the choice is clearer than ever: buy a branded VTX or a bare board, pair it with a cheap RTL8812AU and a Raspberry Pi, and accept that this is a long-range, low-density link system—not a crowded event solution. The stack is open and stable, but its performance envelope hasn’t expanded.

Written 2026-10-04 from the changelog below, not from a fresh search.

The ones that mattered:

• 2026-09-21 — OpenIPC firmware issue reported for SSC338Q/IMX415 module producing poor 1080p60 video quality. (negative, primary-source)
• 2026-09-14 — Conflicting input voltage spec for RunCam WiFiLink2: 9-30V vs established 9-22V. (negative, vendor-claim)

All time#

The field is OpenIPC firmware plus wfb-ng protocol, a vendor-neutral stack for broadcast video from moving cameras. The hardware is SigmaStar/Goke camera SoCs paired with RTL8812-series radios. RunCam’s WiFiLink2 is the dominant retail VTX, but the stack is portable to unbranded modules and other vendors like EMAX.

What works is the core proposition: one RTL8812AU receiver in monitor mode can demux multiple transmitters on a single channel using wfb-ng’s link IDs. This enables multicam setups without a receiver per camera. The recommended ground station is a bare ~$20 RTL8812AU USB adapter and a Raspberry Pi running wfb-ng, which outputs UDP video streams. The driver situation is stabilizing; an RTL8812AU was reported working plug-and-play on recent Kali Linux kernels, and an RTL8812BU also works with wfb-ng, hinting at newer hardware options.

What does not work, or is unreliable, is a growing list. First, the voltage input on the RunCam WiFiLink2 is a known trap. The spec is 9-22V, not 6S-safe, requiring a BEC. A conflicting vendor claim says 9-30V, but treat that as unverified and stick with the lower limit. Second, the closed RunCam WiFiLink-RX appliance remains not recommended; it outputs HDMI, not a network stream. Third, macOS is out — there is no monitor-mode driver for the RTL8812AU, so the ground station must be Linux. Fourth, the performance of unbranded SSC338Q/IMX415 modules running OpenIPC firmware is questionable; a GitHub issue reports poor 1080p60 video quality and an incorrect field of view. Whether these cheap AliExpress boards are a viable path is an open question.

The main open technical question is airtime capacity: how many cameras can share one 20MHz channel at 1080p60 before latency becomes unacceptable? The wfb-ng maintainer clarified that CSMA/CA is active but there are no retransmissions, and the protocol is for “a reasonable small amount of drones.” This is still unmeasured. Confirming or correcting the estimated 3-4 cameras per channel is the tracker’s primary gap.

Since the last synthesis, new open hardware has emerged. OpenFPV published schematics and Gerbers for “Thinker” boards (SSC338Q and SSC378), detailing a DC-DC converter for 2-6S input. This could simplify power design for portable use. Separately, the “OpenIPC Bonnet” VRX module, with wide voltage input and battery monitoring, targets field use. The EMAX Wyvern Link 200mW VTX is confirmed in stock at US retailers, providing an alternative to RunCam. Ruby FPV, the alternative firmware stack, showed a pocket-sized ground station built on a Raspberry Pi Zero 2W, indicating ongoing development alongside the main OpenIPC/wfb-ng path.

Supply remains an issue. RunCam-direct US shipping is still halted over tariffs, but domestic retailers like RaceDayQuads hold stock. The WiFiLink2 is $107.99 at RDQ, undercutting RunCam’s own $129.99. The scarce SKU is the closed WiFiLink-RX receiver, but since it’s not recommended, its stock state is merely a market signal.

For someone deciding to spend money: buy a RunCam WiFiLink2 VTX (or an EMAX Wyvern Link) and a bare RTL8812AU USB adapter, pair it with a Raspberry Pi, and expect to debug power and drivers. Do not expect clean multicam performance beyond a few transmitters until someone measures the limits. The unbranded boards are a gamble; the firmware flashes but the video quality is reportedly poor. The stack is viable for mobile, wearable, and animal cameras where IP-based streaming fails, but it is a tinkerer’s system, not an appliance.

Written 2026-10-04 from the changelog below, not from a fresh search.

How the field breaks down, by what we're actually tracking:

• electrical — 3 items: EMAX Wyvern Link 200mW VTX, OpenIPC Bonnet, OpenIPC Thinker Tiny VTX.
• firmware-project — 2 items: OpenIPC, Ruby FPV.
• ground-station — 2 items: RunCam WiFiLink-RX, RTL8812AU ground station.
• protocol — 1 item: wfb-ng.
• vtx — 1 item: RunCam WiFiLink2 VTX.
• module — 1 item: Bare SSC338Q / IMX415 boards.
• dead-end — 1 item: RunCam SkyGuy (NOT video — search trap).

Tracked products#

Available now. Price and regulatory status are blank where we have not read them on a primary source — they are never inferred.

Upcoming#

Announced, no date.

Nothing in this bucket right now.

Coming Soon#

Announced with a date, or an open pre-order.

Nothing in this bucket right now.

What We're Watching#

Exists, unproven, or newly discovered. This is where auto-discovered items land.

RunCam WiFiLink-RX#

5180-5885MHz receiver, 122g, 32GB internal plus microSD, $125.99-129.99. NOT RECOMMENDED — a closed appliance that terminates the stream in HDMI rather than a socket. Tracked because it is the scarce SKU and its stock state is a signal about the whole supply line.

First seen 2026-09-14 · confidence primary-source · ground-station

Why it's here: No changelog entry explains this status yet.

Sources: RunCam WiFiLink category

Ruby FPV#

Alternative air and ground stack on the same silicon, pairing differently from stock OpenIPC plus wfb-ng. Tracked as the fork that decides whether there is a real choice of firmware or only one maintained path.

First seen 2026-09-14 · confidence secondary · firmware-project

Why it's here: Pocket-sized RubyFPV ground station built on Raspberry Pi Zero 2W shown running custom firmware. (2026-10-04) — A Facebook post shows a compact RubyFPV ground station built on a Pi Zero 2W, described as a sibling to a Pi 4B ground station.

Sources: Ruby FPV

Bare SSC338Q / IMX415 boards#

The same silicon unbranded on AliExpress — the cheaper and uglier path to the branded VTXs. Open question is whether the firmware flashes cleanly and whether the pinout is documented well enough to power and mount.

First seen 2026-09-14 · confidence secondary · module

Why it's here: OpenIPC Thinker open hardware schematics and Gerbers published for SSC338Q and SSC378 modules. (2026-10-04) — OpenFPV published schematics and Gerber files for the Thinker338Q and Thinker378 boards, detailing components including the SigmaStar SoCs, SPI NOR flash, and a TPS54335ADRCR buck DC-DC converter for 2-6S battery input.

Sources: none recorded — this item is a name we've seen and not much more.

RunCam SkyGuy (NOT video — search trap)#

An ExpressLRS CONTROL-LINK receiver (SX1280 + ESP32-C3), not a video transmitter. Recorded as a dead end because search engines and generated answers repeatedly describe it as an "AIO camera VTX" and invent a "WiFiLink Max" lineup around it. No WiFiLink Max product exists.

First seen 2026-09-14 · confidence primary-source · dead-end

Why it's here: No changelog entry explains this status yet.

Sources: none recorded — this item is a name we've seen and not much more.

OpenIPC Bonnet#

VRX module with wide voltage input and battery monitoring for portable/field use.

First seen 2026-09-14 · confidence primary-source · electrical

Why it's here: No changelog entry explains this status yet.

Sources: OpenIPC Documentation

OpenIPC Thinker Tiny VTX#

Compact, integrated VTX with direct battery input, presented as a lighter alternative to modular setups.

First seen 2026-09-21 · confidence unverified · electrical

Why it's here: No changelog entry explains this status yet.

Sources: YouTube presentation

Promising#

Early-stage, but the evidence or the approach is genuinely interesting. The only editorial bucket on this page — an item only lands here with a reason recorded in the changelog.

Nothing in this bucket right now.

Open questions#

Publishing what we don't know is the point. These are things the job is actively watching for; when one gets answered it becomes a changelog entry and moves down here to the answered list.

• How many transmitters actually fit on one 20MHz channel before the picture degrades? The standing figure of 3-4 at 1080p60 is ESTIMATED from ~8-12 Mbps per camera against ~30-40 Mbps practical capacity, not measured. wfb blind-injects with no collision avoidance, so degradation should be graceful-then-sudden rather than linear. Any measured number, or a report of what failure actually looks like, supersedes the estimate. — open since 2026-09-14.
• Is there a DOCUMENTED path from wfb-ng into go2rtc, ffmpeg or an RTSP server? The receive side emits UDP h.264 that ordinary tooling should ingest, but "should obviously work" is not the same as a written-down path someone has run. This is the question that decides whether this hardware belongs in the same stack as the RTSP cameras in live-research/hackable-ip-cameras.yaml. — open since 2026-09-14.
• Does the RTL8812AU out-of-tree driver still build against current kernels, and has any newer Realtek part (8812BU class) gained injection support? This is the ground station's weakest link — a kernel upgrade silently breaking receive is the most likely way the whole stack stops working. — open since 2026-09-14.
• Who is actually shipping this hardware to the US? RunCam-direct stopped over tariffs and Foxeer followed; domestic retailers are selling imported stock at prices that undercut the vendor. Whether that stock outlasts the tariff regime is unknown, and receivers are already scarce. — open since 2026-09-14.
• What does a real body or animal mount look like — enclosure, battery, and the BEC that the 9-22V input demands? Weight and voltage are the whole problem for a moving subject, and the 6S trap suggests the hardware was never designed for the batteries a wearable would actually use. — open since 2026-09-14.

Full changelog#

Everything, newest first, grouped by the month we found it. Long by design — it's the receipts.

October 2026#

September 2026#

Dreamlab Live Research uses autonomous systems to track the state of the art in fields of interest. New trackers appear as the interests do.

Generated from a versioned dataset in a git repository: every state this page has ever been in is a commit, and a bad run is revertible. The dataset is the source; this page is build output and is not itself edited.

• Dataset: data/live-research/wfb-video-links.json (schema version 2)
• Runs completed: 3 · cadence: weekly
• Items tracked: 11 · changelog entries: 12
• Distinct sources seen: 170
• Last run recorded: 2026-10-04T06:14:24Z (status: ok)