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Latest Cumulus MX V3 release 3.28.6 (build 3283) - 21 March 2024
Cumulus MX V4 beta test release 4.0.0 (build 4019) - 03 April 2024
Legacy Cumulus 1 release 1.9.4 (build 1099) - 28 November 2014
(a patch is available for 1.9.4 build 1099 that extends the date range of drop-down menus to 2030)
Download the Software (Cumulus MX / Cumulus 1 and other related items) from the Wiki
Cannot download data.
- mikechristelow
- Posts: 165
- Joined: Wed 01 Feb 2012 9:33 pm
- Weather Station: Watson W8681 (solar)
- Operating System: Windows XP SP3
- Location: Crewe, Cheshire
- Contact:
Re: Cannot download data.
Just as an afterthought, although the "manual" that came with the Watson describes the RF link as being 433MHz, the box in which the kit came shows the external sensors as communicating on 868MHz. A cursory check on the internet reveals this to be particularly susceptible to interference. So it might actually just be that, as others have suggested - purely interference of the RF link rather than faulty kit per se. I'm sure we've plenty of radio engineers on here who be able to add to that aspect of the discussion
http://www.christelow.co.uk
“It's snowing still," said Eeyore gloomily.
"So it is."
"And freezing."
"Is it?"
"Yes," said Eeyore. "However," he said, brightening up a little, "we haven't had an earthquake lately.”
“It's snowing still," said Eeyore gloomily.
"So it is."
"And freezing."
"Is it?"
"Yes," said Eeyore. "However," he said, brightening up a little, "we haven't had an earthquake lately.”
-
- Posts: 1124
- Joined: Sat 26 Feb 2011 1:58 pm
- Weather Station: Fine Offset 1080/1 & 3080
- Operating System: Windows XP SP3
- Location: SE London
Re: Cannot download data.
Hi,
868 MHz is generally "better" than the now very heavily used 434 MHz band, but it has more difficulty getting through walls etc. and maybe interference from mobile phones and broadcast TV, etc.. FO stations rarely achieve their claimed 100 metre "open field" (taken literally) range; what "obstructions" do you have in your system path (transmitter to receiver)?
There will always be some "collisions" between messages from different systems using these radio bands (which are intended for "shared" use) so it makes sense for the FO Console screen to "hide" a few lost messages, and 7 (i.e. 6 minutes) may not be excessive since the default logging interval is 30 minutes !
However, instantly "reporting" lost contacts in the data memory can be useful if you are trying to test the performance of the system. Having to wait 7 minutes to see if some minor change to the antenna position/direction has made any difference can be very tedious (voice of experience).
Cheers, Alan.
PS: The Solar data is sent as a completely different data packet (with a 1 minute repetition time) to the other External data, so it is quite possible for one set of data to update and not the other. I suspect (but don't know) that the solar packets are not taken into account for the "lost contact" reporting.
I think the model number is a clue.mikechristelow wrote: Watson W8681 Solar station
868 MHz is generally "better" than the now very heavily used 434 MHz band, but it has more difficulty getting through walls etc. and maybe interference from mobile phones and broadcast TV, etc.. FO stations rarely achieve their claimed 100 metre "open field" (taken literally) range; what "obstructions" do you have in your system path (transmitter to receiver)?
There will always be some "collisions" between messages from different systems using these radio bands (which are intended for "shared" use) so it makes sense for the FO Console screen to "hide" a few lost messages, and 7 (i.e. 6 minutes) may not be excessive since the default logging interval is 30 minutes !
However, instantly "reporting" lost contacts in the data memory can be useful if you are trying to test the performance of the system. Having to wait 7 minutes to see if some minor change to the antenna position/direction has made any difference can be very tedious (voice of experience).
Cheers, Alan.
PS: The Solar data is sent as a completely different data packet (with a 1 minute repetition time) to the other External data, so it is quite possible for one set of data to update and not the other. I suspect (but don't know) that the solar packets are not taken into account for the "lost contact" reporting.