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General discussion forum / Re: Stumped on Audio Drops
« on: 2011-10-21, 12:31:29 »
It is also highly likely that the drop outs could be caused by bursty Internet traffic to/from either end of your link.
Typical causes of this are webcams, particulary at the radio end, Outlook like mail clients at either end and IPTV applications at the control end. You must limit the upstream bandwidth of all clients at the radio end, except possibly the remote rig itself. In particular I would recommend setting an upsream limit of 100Kbps (unless you have >1Mbps upstream bandwidth) on all other clients on that network. On the control end if you have ~10Mbps then set the limits at around 1Mbps. Note this will 'slow' access to the Internet for other usage and may well stop most IPTV applications from working.
Sometimes you will find particular routers, particularly the cheaper ones(even Apple!) are part of the problem. If all else fails try changing the upstream and then the downstream router.
Rx jitter/delay settings of 10 are often not enough, I have to run with 16/15 AND I had to reduce the audio quality setting to 1 to maintain a basic link between two different ISPs.
Even with an all private network it is not easy to elimate all such drop out except by the introduction of rigourous QoS limiting the bandwidth that can be eaten up by other systems on the network. HTTP traffic can be a real pain and should be constrained!
Sometimes I can also cause such a drop-out by sending an HTTP request to the web server on remote rig (radio) box!
Fixing drop outs just comes down to paying very close attention to what is running on your IP networking(assuming the ISP connection is OK). I would also recommend using pingtest.net for testing your ISP/router.
73
John G4SWX
Typical causes of this are webcams, particulary at the radio end, Outlook like mail clients at either end and IPTV applications at the control end. You must limit the upstream bandwidth of all clients at the radio end, except possibly the remote rig itself. In particular I would recommend setting an upsream limit of 100Kbps (unless you have >1Mbps upstream bandwidth) on all other clients on that network. On the control end if you have ~10Mbps then set the limits at around 1Mbps. Note this will 'slow' access to the Internet for other usage and may well stop most IPTV applications from working.
Sometimes you will find particular routers, particularly the cheaper ones(even Apple!) are part of the problem. If all else fails try changing the upstream and then the downstream router.
Rx jitter/delay settings of 10 are often not enough, I have to run with 16/15 AND I had to reduce the audio quality setting to 1 to maintain a basic link between two different ISPs.
Even with an all private network it is not easy to elimate all such drop out except by the introduction of rigourous QoS limiting the bandwidth that can be eaten up by other systems on the network. HTTP traffic can be a real pain and should be constrained!
Sometimes I can also cause such a drop-out by sending an HTTP request to the web server on remote rig (radio) box!
Fixing drop outs just comes down to paying very close attention to what is running on your IP networking(assuming the ISP connection is OK). I would also recommend using pingtest.net for testing your ISP/router.
73
John G4SWX
