Reading and Viewing POD data
Installation Windows CPOD.EXE (v2.044 is latest stable version) + CPOD specific settings.txt in same directory. Portable format - no installation procedure / no dependencies. Create a directory called 'CPOD data' to download to (not for the F)
Read the data from SD card
Process the data
Open each file Check the start and end times
View the whole file File 2 File 1 (1) click here, to get the right scale File 2 (2) File 1, a CP1 file, cannot show the results of train detection. It shows the last option selected that it can show. Click here (3) File 2, a CP3 file, can show the results of train detection. Select Sp class File 1 (4) Select species of interest (5) Show from start
View the whole file Look for: Temperature and angles Noise level
Viewing the whole file Switch to Q class: Look for which Q classes correlate with Hi Q? Here Lo Q go up in the period of noise, when Hi and Mod Q do not, so Hi + Mod is the best choice, as usual! File 1
Zooming right click and sweep
Zooming down arrow
Zooming down arrow
Zooming now in high resolution down arrow
Zooming now in high resolution shows a pattern of short groups of clicks - too short to be classified as trains
Click trains F4 toggles filters on and off. Here apparently missing trains reappear. Their species was 'unclassed' by the KERNO classifier but was classed as 'other cet' by GENENC.
Skips In high resolution displays blank screens ( no clicks) are skipped when you click ‘show next screen’ (F1). By default this is applied to a CP3 file. You can change which file is the ‘skip file’ and how many clicks must be on the screen to stop it skipping on further.
Graphs Show only the data that is on display. Default is the frequency distribution of all the clicks on show. On the view + page of the menu other parameters can be selected: If ‘show mean values for hour of day’ is checked then ‘N of clicks’ can be shown in a 24 hour graph.
Graphs Finless Porpoise Clicks/s Humpback Dolphin Clicks/s
Exporting screen details time uS avF endF nCyc Pmax Train 24/08/2016 13:28 7347510 125 5 15 6 7350420 120 116 17 7353380 129 156 8 7356725 122 119 11 7359255 131 161 22 7362165 132 142 9 20 7365040 166 7367955 7370835 135 10 24 7373710 133 7376620 147 7 7379510 26 7382385 27 7385295 28 7388260 128 7391110 7394020 151 7397360 123 13 7399790 7402660 7405520 138 30 7408360 29 7411175 7414005 Exporting screen details Right click menu
Other tools ... Filters – see Choice of Filters and Stats File Exports Screen exports Array Viewer – speeded up replay of detections on a grid of PODs Add sightings
any questions? Speak now!