@MIS42N
If you're using a u-blox gps module, you can try u-centre for yourself (I think it only works with u-blox receivers BICBW).
What VisualGPS calls the survey window, u-centre calls its version the deviation map. Right now, since my M8T has long since been 'surveyed in' all it shows is a rather boring single dot in the centre which is why I no longer include it. Back in the days before I acquired my M8T modules, it offered a bit of idle entertainment that I referred to as "The Dance Floor" (effectively a 5 by 5 metre patch of ground).
Since it included my location co-ordinates, I either arranged it so the C/No reports window occluded this information or else edit the screen capture image to blank it out so I don't miss it one little bit since it saves me having to deal with keeping my co-ordinates hidden when attaching these images to any postings I might make here.
The sky map plots show the same data but in different ways, I prefer u-centre's colour patchwork scheme but I guess it's what you get comfortable with. There are plenty more display options including histograms and so on but I'm only showing the more informative and visually appealing such as the last 20 seconds signal C/No history on the right hand side with the clock showing the date and time (using the illogical yankee date format, I've just noticed BTW
![Angry >:(](https://www.eevblog.com/forum/Smileys/default/angry.gif)
).
The windows I'm showing are all I need to see the status of the SVs at a glance. Incidentally, I'm running an ancient version of u-centre since the latest versions as of a couple of years ago aren't compatible with winXP (running in a Vbox VM under Linux Mint) and, although later versions had retained winXP compatibility, u-blox (bless their cotton socks) don't archive these previous versions...
at all! ![Angry >:(](https://www.eevblog.com/forum/Smileys/default/angry.gif)
and I wasn't able to track down alternative archive sources to get my hands on the last winXP compatible version they'd created so I'm stuck with version 8.16 for the time being.
The only problem with v8.16 is that it makes it very difficult or impossible to flash update the NEO M8T's firmware (I wasn't able to figure out which was the case). Luckily for me, I have no urgent need to reflash my M8Ts right now but that could all change at some point in the future. I suppose I could always install a later version of windows in a VM in the event that such a requirement ever arises, so I'm not overly concerned of what may or may not happen in the future.
I've just searched for older versions of u-centre and came across a request for version 8.25 in a u-blox customer forum where he'd been given a link to
https://www.u-blox.com/en/product/u-center#tab-documentation-resources and advised to scroll down the list until he found what he wanted.
I followed the link and scrolled down the list until I saw a "show legacy documents" button which revealed a long list of vista to win 10 compatible versions v19.02 through to v21.09 with this last one having been revised as recently as Oct 2021 with version 8.16 identified as the last winXP compatible version. This is at odds with the implied existence of a v 8.25 and my own vague recollection that the winXP versions had extend all the way to v18.xx.
I do have an installation CD for the later version of Vista which wasn't the omnishables of the initial release (either that or the original and a service pack update that made it tolerable enough to use) so I suppose I could try installing it into a VM for a giggle. I've already downloaded all those versions for possible future use.
It just seems rather odd that u-blox seem to have removed all winXP compatible versions later than 8.16. With that request for version 8.25, I feel pretty sure now that I had actually seen mention of even later winXP compatible versions rather than just imagined I had. At the end of the day, if push comes to shove, I suppose I can always try setting up a Vista VM to get round this issue.
I've added the last 7 screenshots. The first shows a completed sky survey plot with the rest showing the various combinations of data that can be applied to the sky plot.
PS I almost forgot to mention that the first image shows in the history window (RHS) GPS13 reporting an elevation angle of -1 just a few seconds before it dropped off the edge of the plot. This isn't unusual and If I care to observe such stats on SVs about to drop off with a -1 deg elevation, I'll sometimes see a final report of -2 deg just seconds before it disappears completely.