While circumstances can vary from network to network the general rule of thumb is as follows:

Have twice the amount of upload bandwidth available as you will need for your stream. Go to speedtest.net to determine your upload speed.

Example: If you want to stream a video at 1.5mb you would want (at the minimum) 3mb of upload and more will only help.

The BoxCaster, BoxCaster Pro and Broadcaster automatically set the bitrate for your broadcast depending on the available bandwidth at the start time of your live stream.

Below are BoxCast upload speeds for each device (minimum and maximum bitrates each device will send as well as the target bitrate we would like to see to get that specific quality level). Bear in mind, these are the speeds the unit itself will send. So, as stated above, multiply by 2 for minimum recommended upload speeds on your network itself (e.g., if you would like to send 720p using a BoxCaster, we would like to be able to send that signal at 3.5 Mbps and your network would need to have at least 7 Mbps available to safely achieve that).

Minimum Upload Speeds:

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

480p

700 kbps

1.5 Mbps

4.9 Mbps

720p

1.5 Mbps

3.0 Mbps

4.9 Mbps

1080p

3.0 Mbps

4.0 Mbps

4.9 Mbps

BoxCaster (HDSD2):

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

480p

300 kbps

2.5 Mbps

4.8 Mbps

720p

300 kbps

3.5 Mbps

4.8 Mbps

1080p

300 kbps

4.0 Mbps

4.8 Mbps

BoxCaster Pro:

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

720p30 (HEVC)

500 kbps

4.0 Mbps

6.0 Mbps

720p60 (HEVC)

800 kbps

6.0 Mbps

9.0 Mbps

1080p30 (HEVC)

1.0 Mbps

8.0 Mpbs

12.0 Mbps

1080p60 (HEVC)

1.5 Mbps

12.0 Mbps

18.0 Mbps

RTMP:

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

720p30

1.0 Mbps

4.0 Mbps

6.0 Mbps

720p60

1.5 Mbps

6.0 Mbps

9.0 Mbps

1080p30

2.0 Mbps

8.0 Mbps

12.0 Mbps

1080p60

3.0 Mbps

12.0 Mbps

18.0 Mbps

Broadcaster App:

Resolution

Min Bitrate

Target Bitrate

Max Bitrate

720p30

1.0 Mbps

4.0 Mbps

6.0 Mbps

720p60

1.5 Mbps

6.0 Mbps

9.0 Mbps

1080p30

2.0 Mbps

8.0 Mbps

12.0 Mbps

1080p60

3.0 Mbps

12.0 Mbps

18.0 Mbps

These are just general recommendations and the optimal upload speed and bitrate depend on the type of content that you are streaming. Other conditions to consider are the BoxCaster's optimal settings for HD broadcast and the HEVC compatibility of iOS devices with the Broadcaster app.

Bear in mind that your upload speed is the most important factor in streaming video but it is not the ONLY factor. Equipment in your network setup (ethernet cables, switches, routers, modems) all play an important part in reliably delivering video data.

Check out this video for more information:

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