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Garmin GSD 24/26 Update

Old 08-06-2013, 12:24 PM
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Default Garmin GSD 24/26 Update

When I was updating my Garmin 5212 with the 7/22/13 update I noticed that the latest software revision for both the GSD 24 and 26 (I don’t have either one) is April 25 2012.

Since the GSD 26 is new and Garmin is “Normally” very good about providing updates to new products I would have expected several updates since the last one 16 months ago. Does this mean Garmin is not really interested in improving the performance and capability of the GSD 24 and 26 or could it mean Garmin thinks they are both “Perfect” the way they are now?

Comments or thoughts on this lack up sounder support?
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Old 08-06-2013, 02:33 PM
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I do not see an negative here.
The last tweaking of these units seems to have put them both into a positive overall parameter.

Sonar modules and stand alone sonar units do not require the same amount of software tweaking as do the chart/ gps units.
For example..the Furuno ,FCV585, FCV620, DFF1, DFF3, FCV295, FCV1150 all went about 7 years without any software upgrade.

Whereas almost every chart / gps unit needs attention on a yearly..or less basis.

The GSD-24 & GSD-26 are good units ..but I personally do not see any major problems that need being immediately addressed.
I have used both ......very reliable and positive units.
And of course if any improvements are in the works then that will only be a plus.

Last edited by semperfifishing; 08-06-2013 at 02:59 PM.
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Old 08-06-2013, 02:48 PM
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Fishfinders don't really have "features" they just return data. If the data returned is not optimal they have update it to improve the data mining algorithm to return the most correct data. The display handles how you look at the data, and would be the thing getting features like how you zoom and adjusting colors and stuff like that. I wouldn't expect the sounder firmware to change very much unless they were having problems with losing bottom, false returns, too much noise, stuff like that.
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Old 08-06-2013, 02:53 PM
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Just as an FYI, I updated the NSS firmware and it is about 70 MB in size. I updated the BSM-2 sounder firmware, 250 KB. About 300 times smaller. There just isn't much firmware in these fish finders.
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Old 08-06-2013, 03:09 PM
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Originally Posted by stiletto View Post
Just as an FYI, I updated the NSS firmware and it is about 70 MB in size. I updated the BSM-2 sounder firmware, 250 KB. About 300 times smaller. There just isn't much firmware in these fish finders.
Ah, well, that doesn't mean much. The NSS is trying to make pretty pictures and give you a user interface. If it's doing a full software image update that could be a lot.

The sounder module is producing a time-dependent waveform that it uses to drive the transducer, and then it listens to the return and performs a signal processing procedure to hand off the interesting stuff to the NSS.

Most of the work is on the part of the NSS to make the pretty pictures, but small changes in the sounder module code can make a big difference (the sounder is the smart guy explaining to the not-so-smart-NSS how to interpret the return in a way that us fisherman can understand it....).
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Old 08-06-2013, 03:34 PM
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Originally Posted by kidshelleen View Post
Ah, well, that doesn't mean much. The NSS is trying to make pretty pictures and give you a user interface. If it's doing a full software image update that could be a lot.

The sounder module is producing a time-dependent waveform that it uses to drive the transducer, and then it listens to the return and performs a signal processing procedure to hand off the interesting stuff to the NSS.

Most of the work is on the part of the NSS to make the pretty pictures, but small changes in the sounder module code can make a big difference (the sounder is the smart guy explaining to the not-so-smart-NSS how to interpret the return in a way that us fisherman can understand it....).
I don't think my explanation anywhere rated the importance of one set of software over the other. What it was meant to convey to the op is that there is close to 300x more software involved in the MFD compared to a sounder. More software means more code means more bugs means more areas for improvement and means more fixes being delivered. If you have a better explanation for why Garmin hasn't changed their GSD 26 and 24 firmware in over a year while they are frequently updated their MFD software, please give us your insight.
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