Monthly Archives: February 2010
What No 3G?
Although research was carried out into 3G connectivity and the obtaining of 3G hardware once in Nicaragua in reality it was not possible.
Summary
Now back in the UK I can reflect on the trip and what was achieved.
Masaya volcano: Day 12
Today was spent on the Nindiri plateau, there is nothing to report on ERA or the iPhone but I will provide another photo gallery of today’s trip.
Masaya Volcano: Day 11
Today was spent with Mel, Julian and Sam collecting sulphation plates from areas where Mel had place them one to three weeks ago.
Masaya Volcano: Day 10
Today was a great success for ERA with a complete suite of tests completed!
Success on the BGAN from Masaya Volcano…
Yesterday we successfully connected to Paul at the volcano using the BGAN satellite link. The following set of (five) posts will try to cover the tests we carried out, these include: Getting audio contact Video and audio synchronisation A walkabout … Continue reading
Getting audio contact
The attached video shows the point at which we got our first audio contact at the Volcano. At this point the video was running at a quarter PAL resoluction (160 x 120 pixels) at five frames per second and a … Continue reading
Video and audio synchronisation
To test how the audio and video streams are performing we do a simple five-finger test. This involves counting down from five to one using your fingers. The idea behind it is simple – the audio and video streams are … Continue reading
A walkabout on video
Here’s a clip showing the video stream stretched to it’s limits when Paul goes walkabout with the camera. We’re using MPEG-4 video and in this clip the resolution of Paul#s camera was set to half PAL (320 x 240 pixels) … Continue reading
Video resolution configurations
We’ve used quite a few different video resolutions and a couple of frame rates. In all cases we’ve kept a constant bit rate of 200Kbps – Richard at callmonitor.com recommended this setting and it has served us well. Higher bit … Continue reading