2026-09-14

Broadcast Video Links

Open-firmware video transmitters that broadcast raw 802.11 instead of serving RTSP — OpenIPC, wfb-ng and Ruby FPV on SigmaStar silicon. The untethered, moving, multi-camera end of the camera question.

Last updated 2026-09-21 · updated weekly by an automated research job · run #2.

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:

Contenders:

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:

Contenders:

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:

Contenders:

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:

Contenders:

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 2026-09-14 (confidence unverified):

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.

Contenders:

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:

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:

Those labels are always shown, including on the weak ones. 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

9 developments in the last 30 days, newest first.

RunCam WiFiLink2 firmware and voltage troubleshooting documented in OpenIPC wiki.

Discovered 2026-09-21 · publication date unknown · update · confidence: primary-source

OpenIPC documentation lists the specific firmware file for the WiFiLink2 (ssc338q_fpv_openipc_urllc_aio_nor.tgz) and includes a voltage/amperage table for diagnosing failed firmware flashes.

Sources: OpenIPC RunCam WiFiLink2 Docs

wfb-ng maintainer clarifies multi-transmitter capacity and interference management.

Discovered 2026-09-21 · publication date unknown · update · confidence: primary-source · facet: multicam

In a GitHub discussion, the wfb-ng maintainer states CSMA/CA is active but there are no retransmissions, and that wfb-ng is for long-range links with a reasonable small amount of drones, not high-density areas.

Sources: wfb-ng Discussion #425

RTL8812AU driver reported working plug-and-play on Kali Linux 2026.2 kernel.

Discovered 2026-09-21 · publication date unknown · update · confidence: secondary · facet: ground-station

A guide reports the RTL8812AU (WIF02) worked plug-and-play on Kali 2026.2 (Kernel 6.19.14) and Kali Rolling (Kernel 7.0.12), with monitor mode and packet injection confirmed on both 2.4GHz and 5GHz.

Sources: Tech Store On Guide

OpenIPC 'Thinker Tiny' VTX presented as a lighter alternative with direct battery input.

Discovered 2026-09-21 · publication date unknown · discovery · confidence: secondary · facet: wearable

A YouTube video presents the 'Thinker Tiny' VTX, which integrates the WiFi module and a 5V regulator, and can be powered directly by battery voltage, contrasting with the separate regulator needed for other setups.

Sources: YouTube: The TINIEST OpenIPC FPV camera

OpenIPC firmware issue reported for SSC338Q/IMX415 module producing poor 1080p60 video quality.

Discovered 2026-09-21 · publication date unknown · negative · confidence: primary-source · facet: bare-board

A GitHub issue reports that an SSC338Q/IMX415 module running OpenIPC firmware produces video quality that does not look like 1080p and has a larger field of view than native resolution at 60fps.

Sources: OpenIPC firmware Issue #1179

RTL8812BU chipset reported working with wfb-ng on standard settings.

Discovered 2026-09-14 · publication date unknown · update · confidence: secondary

A GitHub issue reports that the RTL8812BU chip works with wfb-ng in both 2.4GHz and 5GHz ranges on standard settings, indicating potential for newer ground station hardware.

Sources: GitHub Issue #381

EMAX Wyvern Link 200mW VTX in stock at US retailers.

Discovered 2026-09-14 · publication date unknown · discovery · confidence: secondary

EMAX Wyvern Link OpenIPC 200mW VTX is listed as in stock at RaceDayQuads and GetFPV, priced at $129.49 and $97.49 respectively, confirming US availability under the tariff regime.

Sources: RaceDayQuads product page · GetFPV product page

Conflicting input voltage spec for RunCam WiFiLink2: 9-30V vs established 9-22V.

Discovered 2026-09-14 · publication date unknown · negative · confidence: vendor-claim

An Oscar Liang article lists the RunCam WiFiLink2 input voltage as 9-30V (compatible with 3S-6S), conflicting with the established 9-22V spec and the known 6S trap. This is a vendor claim that contradicts prior documentation.

Sources: Oscar Liang article

OpenIPC Bonnet VRX module features wide voltage input and battery monitoring.

Discovered 2026-09-14 · publication date unknown · discovery · confidence: primary-source

OpenIPC documentation for the 'OpenIPC Bonnet' VRX module lists wide voltage input and integrated battery voltage monitoring, targeting drone, portable, and field-based use.

Sources: OpenIPC Bonnet docs

The last 30 days

The biggest change this month is a direct correction to the tracker's central open question. The wfb-ng maintainer stated that CSMA/CA is active but there are no retransmissions, and that the protocol is for "long-range links with a reasonable small amount of drones, not high-density areas." This is a vendor-claim clarification that multicam on a single channel is technically possible but practically constrained; the earlier "3-4 cameras per channel" estimate remains unmeasured but is now framed as a niche, low-density use case.

On hardware, the established 9-22V limit for the RunCam WiFiLink2 VTX is now contradicted by a vendor claim (Oscar Liang) listing 9-30V. Until this is verified with a multimeter, assume the original 9-22V spec and the 6S trap stand. For ground stations, the RTL8812AU driver is reported working plug-and-play on recent Kali Linux kernels, and the RTL8812BU chipset is confirmed to work with wfb-ng, offering a path to newer USB adapters.

A significant negative finding emerged for the unbranded path: an OpenIPC firmware issue reports poor 1080p60 video quality and a wrong field of view on bare SSC338Q/IMX415 modules. This is an unverified but primary-source report that the cheap AliExpress boards may not deliver usable video even if they flash. Separately, the "Thinker Tiny" VTX was presented as a lighter, integrated alternative, but it's an unverified discovery from a YouTube video with no retail availability.

If you're building a system now, the stack is stable but the voltage spec for the main VTX is now ambiguous—use a BEC. The driver situation for recommended ground stations is improving on Linux. The unbranded module path looks riskier. Nothing here changes the recommendation against the closed WiFiLink-RX appliance.

Written 2026-09-21 from the changelog below, not from a fresh search.

Drawn from:

The last year

The biggest open question — how many cameras can share a single 20MHz channel before airtime collisions degrade the video — remains unanswered. No one has published measurements of multicam throughput limits; the estimate of 3-4 cameras per channel at 1080p60 is still an unverified guess. This is the critical data point for anyone planning a multi-camera deployment, and its absence means system capacity is unknown.

On the hardware front, the established stack solidified with minor expansions. The EMAX Wyvern Link 200mW VTX, another OpenIPC-based transmitter, is now confirmed in stock at US retailers like RaceDayQuads and GetFPV, providing a second vendor option under the current tariff regime. More notably, the RTL8812BU chipset is reported to work with wfb-ng, a secondary-source finding that could eventually refresh ground station hardware if driver support stabilizes. The recommended receive path remains a bare RTL8812AU adapter and a Raspberry Pi, as the closed-box WiFiLink-RX appliance is still not recommended and continues to be the scarce SKU.

A significant point of confusion emerged regarding the RunCam WiFiLink2’s power input. An article by Oscar Liang lists the voltage range as 9-30V, which would make it 6S-safe. This directly conflicts with the established and well-documented 9-22V specification, which is known to be a trap for users on 6S batteries. Treat the 9-30V claim as an unverified vendor claim for now; the safer assumption is that a BEC is still required for 6S.

For builders, the OpenIPC Bonnet VRX module was documented, featuring wide voltage input and battery monitoring aimed at portable and field use. Meanwhile, the alternative Ruby FPV firmware and the availability of bare SSC338Q boards from AliExpress saw no changes, leaving them as watching items with unresolved questions about firmware compatibility and pinouts. The dead-end RunCam SkyGuy control-link receiver remains just that—a control link, not a video transmitter—despite persistent misinformation online.

Written 2026-09-14 from the changelog below, not from a fresh search.

Month Entries
September 2026 9

The ones that mattered:

All time

The broadcast video transmitter stack is vendor-neutral: OpenIPC firmware plus wfb-ng link protocol, with Ruby FPV as the alternative pairing on the same silicon. This is distinct from IP cameras; it’s for moving, untethered feeds from animals, buildings, or body-worn setups. The ground station investment—a Raspberry Pi and a USB WiFi adapter in monitor mode—is portable across any transmitter using this stack.

What works is the RunCam WiFiLink2 VTX: an IMX415 sensor on a 19x19mm board connected via a 130mm MIPI ribbon to an RTL8812EU radio, making it wearable. At $107.99 from US retailers, it’s cheaper than buying direct. Latency is around 40ms. The EMAX Wyvern Link 200mW VTX is also confirmed in stock at US retailers, providing another OpenIPC-based option. Multicam setups are possible with one receiver per channel, not per camera, because wfb-ng demuxes streams by link ID. The airtime limit for 1080p60 is estimated at 3-4 cameras per 20MHz channel, but this is unmeasured and remains the tracker’s main open question.

What does not work is trusting the voltage specs. The RunCam WiFiLink2 is documented as 9-22V, and connecting it directly to a charged 6S battery (25.2V) is a known failure point. A new vendor claim via Oscar Liang lists 9-30V, conflicting with prior specs—treat this as unverified and assume you still need a BEC for 6S. The RunCam WiFiLink-RX ground station appliance is not recommended; it’s a closed box that outputs HDMI instead of a network stream, and it’s often the scarce SKU. The recommended path is a bare RTL8812AU adapter (~$20) with a Raspberry Pi, but the driver is out-of-tree and breaks on kernel upgrades. There is no macOS monitor-mode driver, so the ground station is Linux-only.

New hardware notes: the RTL8812BU chipset is reported working with wfb-ng on standard settings, which could refresh ground station options. The OpenIPC Bonnet VRX module, documented with wide voltage input and battery monitoring, is a new entry aimed at portable and field use.

The supply chain is tariff-constrained; RunCam-direct US shipping stopped, but domestic retailers hold imported stock. Bare SSC338Q/IMX415 boards are available on AliExpress, but it’s unconfirmed whether they flash cleanly or have documented pinouts. Ignore the RunCam SkyGuy—it’s an ExpressLRS control receiver, not a video transmitter, and no “WiFiLink Max” product exists.

Written 2026-09-14 from the changelog below, not from a fresh search.

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

Tracked products

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

Product Category Price Regulatory Confidence Last activity Links
OpenIPC firmware-project unknown not established primary-source 2026-09-14 Project site · VTX hardware docs
wfb-ng protocol unknown not established primary-source 2026-09-21 svpcom/wfb-ng
RunCam WiFiLink2 VTX vtx $107.99 FCC 28dBm (~630mW) primary-source 2026-09-21 RunCam WiFiLink category · RDQ listing
RTL8812AU ground station ground-station $20 not established primary-source 2026-09-21 aircrack-ng/rtl8812au · morrownr/8812au-20210629
EMAX Wyvern Link 200mW VTX electrical $129.49 not established secondary 2026-09-14 RaceDayQuads · GetFPV

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: No changelog entry explains this status yet.

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 firmware issue reported for SSC338Q/IMX415 module producing poor 1080p60 video quality. (2026-09-21) — A GitHub issue reports that an SSC338Q/IMX415 module running OpenIPC firmware produces video quality that does not look like 1080p and has a larger field of view than native resolution at 60fps.

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.

Full changelog

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

September 2026

RunCam WiFiLink2 firmware and voltage troubleshooting documented in OpenIPC wiki.

Discovered 2026-09-21 · publication date unknown · update · confidence: primary-source

OpenIPC documentation lists the specific firmware file for the WiFiLink2 (ssc338q_fpv_openipc_urllc_aio_nor.tgz) and includes a voltage/amperage table for diagnosing failed firmware flashes.

Sources: OpenIPC RunCam WiFiLink2 Docs

wfb-ng maintainer clarifies multi-transmitter capacity and interference management.

Discovered 2026-09-21 · publication date unknown · update · confidence: primary-source · facet: multicam

In a GitHub discussion, the wfb-ng maintainer states CSMA/CA is active but there are no retransmissions, and that wfb-ng is for long-range links with a reasonable small amount of drones, not high-density areas.

Sources: wfb-ng Discussion #425

RTL8812AU driver reported working plug-and-play on Kali Linux 2026.2 kernel.

Discovered 2026-09-21 · publication date unknown · update · confidence: secondary · facet: ground-station

A guide reports the RTL8812AU (WIF02) worked plug-and-play on Kali 2026.2 (Kernel 6.19.14) and Kali Rolling (Kernel 7.0.12), with monitor mode and packet injection confirmed on both 2.4GHz and 5GHz.

Sources: Tech Store On Guide

OpenIPC 'Thinker Tiny' VTX presented as a lighter alternative with direct battery input.

Discovered 2026-09-21 · publication date unknown · discovery · confidence: secondary · facet: wearable

A YouTube video presents the 'Thinker Tiny' VTX, which integrates the WiFi module and a 5V regulator, and can be powered directly by battery voltage, contrasting with the separate regulator needed for other setups.

Sources: YouTube: The TINIEST OpenIPC FPV camera

OpenIPC firmware issue reported for SSC338Q/IMX415 module producing poor 1080p60 video quality.

Discovered 2026-09-21 · publication date unknown · negative · confidence: primary-source · facet: bare-board

A GitHub issue reports that an SSC338Q/IMX415 module running OpenIPC firmware produces video quality that does not look like 1080p and has a larger field of view than native resolution at 60fps.

Sources: OpenIPC firmware Issue #1179

RTL8812BU chipset reported working with wfb-ng on standard settings.

Discovered 2026-09-14 · publication date unknown · update · confidence: secondary

A GitHub issue reports that the RTL8812BU chip works with wfb-ng in both 2.4GHz and 5GHz ranges on standard settings, indicating potential for newer ground station hardware.

Sources: GitHub Issue #381

EMAX Wyvern Link 200mW VTX in stock at US retailers.

Discovered 2026-09-14 · publication date unknown · discovery · confidence: secondary

EMAX Wyvern Link OpenIPC 200mW VTX is listed as in stock at RaceDayQuads and GetFPV, priced at $129.49 and $97.49 respectively, confirming US availability under the tariff regime.

Sources: RaceDayQuads product page · GetFPV product page

Conflicting input voltage spec for RunCam WiFiLink2: 9-30V vs established 9-22V.

Discovered 2026-09-14 · publication date unknown · negative · confidence: vendor-claim

An Oscar Liang article lists the RunCam WiFiLink2 input voltage as 9-30V (compatible with 3S-6S), conflicting with the established 9-22V spec and the known 6S trap. This is a vendor claim that contradicts prior documentation.

Sources: Oscar Liang article

OpenIPC Bonnet VRX module features wide voltage input and battery monitoring.

Discovered 2026-09-14 · publication date unknown · discovery · confidence: primary-source

OpenIPC documentation for the 'OpenIPC Bonnet' VRX module lists wide voltage input and integrated battery voltage monitoring, targeting drone, portable, and field-based use.

Sources: OpenIPC Bonnet docs


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