[time-nuts] Re: CF cards and the Trimble NetRS

[John Ackermann N8UR]

You can stream data out of the receiver via either TCP or serial port 
without storing to disk, so that's probably the best bet to save CF wear 
and tear.  I'm not sure if it's more difficult to turn the

But for now I'm doing as you suggest -- I have one "T00" format session 
logging to disk in 24 hour files, with the "autodelete" function turned 
on to delete oldest files first when the disk gets nearly full.

However, I've been collecting data now for almost 4 months, and have 
used 68.5 MB, with 770 MB still available, so I won't need to delete 
anything for quite a long while.

John
----

On 3/21/22 11:22, Skip Withrow wrote:
> Hello Time-Nuts,
> 
> Seems like there has been a lot of interest in the NetRS lately
> because of their availability at reasonable prices (sometimes).
> 
> They use a Compact Flash card to store the operating system and logged
> data files.  I'm not very knowledgeable about Linux, but I would guess
> that there is no wear leveling implemented in this receiver.
> 
> So, when considering how best to use the data logging area it would
> seem that instead of collecting some data, downloading it, deleting
> file(s), and repeating the best strategy would be to collect data and
> let the data logging area fill up before deleting (the files could be
> read anytime).
> This would minimize the number of writes to any one area of the CF
> card I believe (except perhaps the directory structure).
> 
> However, even if you were deleting data often, you still may not be
> able to get to the life of the CF card.  The good news is that even if
> a card does go bad you can reconstruct a new one from the image of
> version 1.3-2 of the software that is floating around.  I have tried
> it and it works.
> 
> If there is better insight into the operation of this receiver, or
> best practices strategy I'm all ears.
> 
> Regards,
> Skip Withrow
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com -- To unsubscribe send an email to time-nuts-leave at lists.febo.com
> To unsubscribe, go to and follow the instructions there.