Panasonic AW-HE145 SRT setup: send SRT to Callaba Gateway
Written by Iurii Pakholkov
Founder of Callaba. Building cloud video tools for SRT, RTMP, WebRTC, NDI, live routing, monitoring, recording, and production workflows.
Release: Callaba 8.4
Panasonic AW-HE145 SRT setup is a direct camera-to-cloud contribution workflow. Use this setup when AW-HE145 is at the venue and Callaba is the cloud SRT receiver for monitoring, recording, routing, multiview, or restreaming. The main path is the camera sending H.264 or H.265 over SRT to a Callaba SRT Listener; Callaba then handles downstream uses in parallel.
Quick answer
To use Panasonic AW-HE145 with SRT, set AW-HE145 as the SRT Caller and send the stream to a cloud SRT Listener. In this guide, Callaba works as the SRT gateway, receiver, monitor, recorder, and routing layer. Before the event, confirm that the installed firmware exposes the expected SRT(H.264) or SRT(H.265) menu and fields.
The Panasonic AW-HE145 sends one SRT contribution feed into Callaba. After ingest, Callaba can preview, record, route, restream, and feed multiview as parallel downstream uses, not as mandatory sequential setup steps.
- AW-HE145SRT caller, H.264 or H.265
- Callaba GatewaySRT listener and receiver
- Preview
- Record
- Multiview
- Route
- Restream
What this setup does
This workflow answers the common AW-HE145 SRT caller, AW-HE145 SRT listener, AW-HE145 SRT receiver, and AW-HE145 SRT to cloud questions. In the default design, the camera is the caller at the venue and Callaba is the cloud listener. If someone says Panasonic AW-HE145 SRT server, they usually mean the receiving side; in this setup, that server role is Callaba.
What this model can and cannot do in this workflow
Panasonic documentation for the AW-HE145 lists IP streaming modes including SRT, RTMP, RTMPS, RTSP/RTP, MPEG2-TS over UDP, and NDI|HX2. The same product information lists H.264, H.265/HEVC, JPEG/MJPEG, and AAC-LC audio support for its network workflow.
- Confirmed for direct SRT: SRT(H.264) and SRT(H.265), with Caller and Listener modes, destination IP and port, Stream ID, latency, AES-128/AES-256 encryption, and passphrase settings.
- Useful physical I/O: 3G-SDI out, HDMI 2.0, LAN, RS-422 control, genlock input, 3.5 mm mic/line input, and 12 V DC or PoE++ power.
- Important limits: SRT Rendezvous is not confirmed for this camera. ST 2110, NDI High Bandwidth, 12G-SDI, and bonded cellular contribution are not documented AW-HE145 capabilities.
- Frame-rate caveat: the operating instructions say SRT(H.264), SRT(H.265), and NDI|HX modes are not selectable at 24/23.98 Hz, and streaming format settings cannot be changed during SRT transmission.
- NDI nuance: Panasonic public material is not perfectly uniform on NDI activation. Current support describes activation firmware for AW-HE145W/K, while older regional copy may still mention a paid license. For an NDI job, confirm firmware and active NDI state on the unit. NDI|HX2 is also not the path for 4K image output on this model.
This guide is for AW-HE145 units and close W/K regional or color variants. If you are working with a different Panasonic PTZ model, do not copy protocol assumptions from this page without checking that model's manual.
Recommended workflow
Use direct SRT first. Create a Callaba SRT Listener in the cloud, open the chosen UDP port, then configure the AW-HE145 as SRT Caller to the Callaba public address. This avoids an extra bridge computer and keeps the venue side simple.
Use camera Listener mode only when you deliberately want Callaba to call the camera. That means the camera side must accept an inbound internet connection, so the venue may need a public IP, UDP port forwarding, firewall rules, or a tested NAT plan.
If the SRT menu is not available on the installed firmware, use the confirmed RTMPS or RTMP path to Callaba when it fits the production. RTSP or NDI|HX2 can be bridged through another system when the camera is on the same LAN as that bridge.
When not to use this setup
- If the camera and switcher are in the same rack or studio, SDI or HDMI may be the simpler path.
- If all devices are on one trusted LAN and NDI|HX2 is active on the camera, an NDI local workflow may be enough.
- If the only destination is a public platform and you do not need SRT recovery, cloud monitoring, recording, or routing, AW-HE145 RTMPS or RTMP may be acceptable.
- If the job requires ST 2110 or bonded cellular transmission, use equipment that is documented for those jobs instead of treating AW-HE145 as that device.
Before you start
Confirm the AW-HE145 firmware, the visible streaming menu, the selected video frequency, network access from the venue to the Callaba server, and the audio source. Panasonic does not publish an AW-HE145 SRT library version in the documents I found, so if a handshake problem is hard to diagnose, check vendor firmware notes or support information and confirm compatible SRT major versions on both sides.
For first internet tests, I usually start with H.264, 1080p30 at about 4-6 Mb/s, or 1080p60 at about 6-8 Mb/s if the uplink is stable. For SRT latency, 250-500 ms is a practical starting range; reduce it only after RTT, packet loss, and retransmits look stable.
Create the Callaba ingest
In Callaba, create an SRT server in Listener mode and choose the UDP port that the venue can reach. If you require Stream ID or encryption, enter those values before testing the camera. Keep the first test narrow: one camera, one port, one Stream ID, and one passphrase. After the incoming bitrate is stable, add recording, preview, multiview, routing, or restreaming as separate downstream outputs.
Configure the AW-HE145
Open the AW-HE145 network or streaming configuration page and select SRT(H.264) or SRT(H.265). Choose Caller mode for the normal cloud workflow. Enter the Callaba public IP address or DNS name, the Callaba UDP port, the matching Stream ID if required, and the same encryption/passphrase settings used on Callaba.
Stream ID and passphrase values are case-sensitive and whitespace-sensitive. A copied newline, trailing space, or changed capitalization can break the SRT handshake. If you need to change the camera's streaming format, stop SRT transmission first.
Settings table
| Where | What to do / field to fill | First-test value | Why / check |
|---|---|---|---|
| Callaba SRT server | Create Listener and choose UDP port | One open UDP port, for example 10080 | Callaba waits for the camera to call in. |
| Callaba SRT server | Stream ID rule, if used | Simple exact string | Must match the AW-HE145 Stream ID exactly. |
| AW-HE145 SRT settings | Mode | Caller | Best default for AW-HE145 SRT to cloud. |
| AW-HE145 SRT settings | Destination IP address | Callaba public IP or DNS | The camera must reach the cloud gateway. |
| AW-HE145 SRT settings | Destination port | Same UDP port as Callaba | Wrong port usually shows no incoming packets. |
| AW-HE145 SRT settings | Stream ID | Exact Callaba value | Check case and hidden whitespace. |
| AW-HE145 SRT settings | Latency | 250-500 ms | Increase for unstable public internet paths. |
| AW-HE145 SRT settings | Encryption and passphrase | Match Callaba, AES-128 or AES-256 if enabled | Mismatch causes handshake failure. |
Monitoring
In Callaba, watch incoming bitrate, connection uptime, RTT, packet loss, retransmits, preview, and audio meters. A connected SRT session with zero useful bitrate usually points to camera encoding, selected streaming format, or network filtering. A stable bitrate with no audio points to the AW-HE145 mic/line input, audio enable state, or AAC-LC handling downstream.
Failover and local ingest options
For production events, plan what happens if the main encoder, venue uplink, or primary contribution path fails. Callaba can be part of that continuity plan without changing the basic Panasonic AW-HE145 ingest workflow.
Recording and playback
Once ingest is stable, start recording or create playback outputs in Callaba as parallel uses of the same source. If you choose SRT(H.265), confirm that every downstream player, decoder, or browser workflow in the chain supports HEVC. H.264 is the safer first test when many monitoring devices are involved.
Troubleshooting
| Symptom | Check in Callaba | Check on device | Likely fix |
|---|---|---|---|
| No connection | Listener idle, no packets | Caller mode, destination IP, destination port | Open UDP firewall path and confirm the public address. |
| Handshake fails | Rejected or short connection attempts | Stream ID, encryption, passphrase | Remove trailing spaces and match capitalization exactly. |
| Connects but no picture | Bitrate present but no preview | SRT(H.264) versus SRT(H.265), active transmission | Start with H.264 and stop transmission before changing format. |
| No audio | Audio meters flat | Mic/line input, audio enable, input level | Confirm the camera receives audio and that AAC-LC is accepted downstream. |
| Unstable video | RTT, packet loss, retransmits | Bitrate and latency | Raise latency toward 500 ms or lower bitrate. |
| SRT menu missing | SRT server is ready but unused | Firmware and streaming menu | Update or verify firmware; use RTMPS/RTMP fallback if needed. |
Official references
These are the most useful reader resources for confirming AW-HE145 behavior before an event.
Vendor references
- Panasonic AW-HE145 specifications
- Panasonic AW-HE145 features
- Panasonic AW-HE145 operating instructions
- Panasonic NDI activation support note
- Panasonic AW-HE145 firmware update information
Callaba resources
FAQ
Can Panasonic AW-HE145 send SRT directly to Callaba?
Yes. Panasonic lists SRT for this model, and the operating instructions include SRT(H.264) and SRT(H.265). Still confirm the installed firmware and visible SRT menu before the event.
Should AW-HE145 be SRT Caller or SRT Listener?
Use Caller for the normal cloud workflow. Listener mode is confirmed, but it requires the camera side to accept inbound UDP traffic, which is more work at many venues.
Is AW-HE145 the SRT receiver or server?
Not in the default setup. The camera sends the stream; Callaba is the SRT receiver, listener, and gateway in the cloud.
Does AW-HE145 support SRT Stream ID and passphrase?
Yes. The SRT settings include Stream ID, latency, AES-128/AES-256 encryption, and passphrase. Match these values exactly on Callaba.
Can I use H.265 from AW-HE145 over SRT?
Yes, SRT(H.265) is listed. Use H.264 for the first test unless you know the monitoring and playback chain supports HEVC.
What if the SRT menu is missing?
Check firmware and the selected video frequency. If SRT is still unavailable, use AW-HE145 RTMPS/RTMP to Callaba or bridge RTSP/NDI from a local system.
Next steps
Build the first test with one AW-HE145 feed, one Callaba SRT Listener, H.264 video, and a visible audio source. Confirm connection uptime, bitrate, preview, and audio meters. After the signal is stable, add recording, multiview, restreaming, routing, playback, or API automation as separate outputs.
Try Callaba Gateway with Panasonic AW-HE145 SRT
Create an SRT server in Callaba, send the device feed to the gateway, and check the received stream. After ingest is stable, use Callaba outputs for preview, recording, restreaming, multiview, playback, routing, or API workflows as parallel downstream options.