AJA 3G-AMA-R0 – Glue Equipment

The 3G-AMA-R0 operates in either embed or disembed mode—not simultaneously on the same unit. This is a key architectural constraint: one converter handles analog-to-SDI embedding, or SDI-to-analog disembedding. For bidirectional audio routing, you'll need two units (one in each direction). Confirm your signal flow requirement before purchase and budget accordingly for OB van or studio setups that demand both directions on the same transport line.

The unit ships with a DB-25 breakout cable that provides four balanced XLR connectors for the analog audio channels. Each XLR pair is individually addressable, so you can route all four channels to separate mixer inputs or group them as needed. Verify the cable condition if purchasing used stock, as the DB-25 connector and XLR pins are the highest-wear items in mobile environments. AJA supplies replacement breakout cables separately.

The 3G-AMA-R0 regenerates (reclocks) the incoming SDI signal on its output, removing accumulated jitter and timing errors. This maintains signal integrity through the audio embedder without passive distribution loss. The output is a true, regenerated 3G-SDI signal suitable for chaining to routers, production switchers, or recording devices. This is a significant advantage in long cable runs or noisy RF environments typical of OB trucks.

This unit is strictly analog XLR audio via the DB-25 breakout—no AES/EBU or S/PDIF digital audio interfaces are available. If your workflow requires digital audio I/O (e.g., connection to a Dante network or digital multitrack), you'll need a different AJA audio product or an external AD/DA converter in the signal chain. Confirm your audio infrastructure before committing this converter to a system.

Control is restricted to USB (via AJA MiniConfig software on Windows/Mac) and front-panel DIP switches. There is no remote control protocol (GPI, GPIO, or serial) for integration into larger broadcast control systems. For permanent or networked installations, expect manual DIP switch configuration or a dedicated USB computer nearby. This limits its use in fully automated master control environments—treat it as a manually configured or locally-managed device.

DIP switch settings persist after power loss, so audio embed/disembed mode and basic functions survive a reboot. However, any USB-configured parameters reset to DIP switch defaults. Video and audio remain synchronous because the embedder/disembedder operates at the SDI sample clock—no separate audio clock source is involved. Verify your DIP switch configuration in advance and avoid mid-show USB reconfigurations. For critical live events, test the power-loss scenario in rehearsal.

The 3G-AMA-R0 accepts +5V to +20V DC input, so a quality 12V camera or monitor PSU will work if it can reliably deliver 5 watts. However, use the included universal supply for initial deployment to ensure stable operation. In OB vans, integrate the converter onto your main DC distribution rail with proper fusing (assess your total +12V load carefully). Avoid cheap or undersized supplies; power supply quality directly affects SDI reclocking performance and audio conversion fidelity.

No. Each 3G-AMA-R0 handles only 4 SDI audio channels (the maximum for one 3G-SDI link). For 8-channel workflows, you'll need two separate 3G-SDI paths or consider a larger AJA audio converter (e.g., AJA Kona or io-4K series). Cascading multiple 4-channel converters requires separate video inputs/outputs—not feasible for single-link architectures. Verify your channel count and video distribution plan before purchase.

Yes, it supports 2K (2048×1080p/PsF) at up to 60 fps across all embedded/disembedded audio channels. This makes it suitable for cinema-grade OB trucks and premium production workflows. However, confirm your facility's actual 2K transport infrastructure (not all routers/switches handle 2K SDI equally). The 24-bit audio converters remain identical across all video formats, so audio quality is independent of resolution. For 2K projects, verify downstream compatibility before finalizing signal architecture.

Yes, every used or ex-demo unit is tested and covered by a 90-day warranty. In the event of a failure, the round-trip transport cost is shared equally between the customer and Broadcast Depot.

Yes, Broadcast Depot ships worldwide. We arrange transport on quotation, or you can use your own carrier. Delivery usually takes 3 to 5 days. OB vans are delivered by driver or collected on site.

Yes, in case of an error or if you would like another product from our stock: returns and exchanges are possible with no time limit. Contact us to arrange it.