Sling Media’s SlingSupport channel released this video which helps explain the bandwidth requirements for SlingPlayer for streaming content. While tech geeks likely already understand everything in the video, I think it is useful for the less technical user who may not understand why their streaming quality will vary when streaming from their Slingbox.
The video also clearly states the requirements for streaming in high quality (HQ) mode. SlingPlayer for iPad and SlingPlayer for Android tablets require 800kbps over 3G or 4G networks, and 1200kbps over WiFi. SlingPlayer for iPhone/iPod Touch, SlingPlayer for Android phones, and SlingPlayer for Windows Phone requires 500kbps over 3G or 4G networks and 800kbps over WiFi. Note those are the minimum speeds required for streaming HQ, higher speeds will provide better quality. If you can’t get those speeds you should stream in standard quality (SQ) mode. If you leave SlingPlayer it ‘auto’ it should figure it out and set the mode correctly.