New subject: Latency in various protocoles

28 May 2017

Im experimenting two  net cameras on the AMPRNET

One is http streaming   the other is RTSP  streaming

The  http uses  tcp port 80

the rtsp uses udp (dont remember the port now )

The http replace photo every 250 MS  (i assume after it get  ACK  and then send the next 
image) ( i see about  4 frames per  second)  and make a traffic of about 1000 kbit/sec

the RTSP  send photos in  about 10  frames per second and produce traffic of  about
500-800 Kbit sec

all this over the amprNet

May someone explain this ?  how come that the RTSP  photo is like movie and the http  is 
4 frames per second (of course that if i   view the http camera  direct on  the net i see
the 10 frames per second i  set the camera for)

And why i tell you all of this ?

Because i wonder how a DMR  repeater  connection will work on the amprNet ...

If i can see in  RTSP   video without problems or frame loss should a VOIP (or  more
exact) data  stream of the DMR work ? after all it is less data  ....

Is there anyone that can light my  eyes on the subject ?

Regards

Ronen - 4Z4ZQ