So last week, in an attempt to mitigate any hassle or chaos when my SD cards fail at the wrong time in the near future as has happend to so many others. I ordered 2 Samsung PRO Endurance 32GB micro SDHC cards. They're a good high endurance card, great for dash cams and not impacted speed wise by them being high endurance, theoretical speed of 100MB/s they say, but I've never seen or probably will, but they'd be a lot more dependable thatn the OEM Uniden supplied 8GB no name, bulk bin ones that are failing everywhere.
The cards came in, I went through the motions, and hit a roadblock, Sentinel could not connect to the server to do the firmware update after you do the clear data step.... 1.5 hours later, after all sorts of network troubleshooting on my end, to see what was going on, I noticed Uniden's letter saying they and their servers would be down this weekend.... ok, glad I have backups....
Cards went in..and while the Uniden provided bulk brand micro sd did not do so shabby on the 'reading' files section..... the 'writing' files to the card area is where the Samsung (or probably any name brand card) blew the Uniden provided one out of the water.
For kicks I did an unscientific test with the iPhone stop watch, from start of turning on the 200 till the display lit up in full colors, on the original card was 16.38, with the new Samsung high endurance and speedier card, it was 16.80, yup, a hair longer for the new Samsung card. This was with only a couple favorites lists loading, a couple of Phoenix ones, not super full.
But here's where that virtually identical time is actually a win..... the OEM no name toss upon opening card was 8GB, this "just a hair slower" time was pulled in with a 32GB card, the largest that the current bios will allow.... So go big gentlemen, it's not going to impact your loading time if you get a reasonably fast card (but more importantly your intention should be a high endurance card, most of them are fast anyways as they're meant for 4k video cameras etc.
Ok, I did some speed tests outside the scanner today... my laptop has a micro SD slot on it which was handy, there is no induced latency due to a Micro SD to SD card adapter etc...
The first one is running a suite of read/writes with the 8GB Uniden supplied card, this was a 3 pass tests using file sizes of 100mb to a targeted folder on the SD card. Note the write speed, you'll be comparing that later
Keep in mind, the numbers you're seeing here, and further down are not a measurement of time, as in seconds, it's the number of MB/s that card was able to process/get written into the card including digitized audio tracks from the playback feature, larger is better.
For those wanting to learn the specifics around the tests included and the numbers, here are a couple of links:
How to check drive read and write performance speeds on Windows 10 • Pureinfotech
The manual is half way down this page:
CrystalDiskMark
UNIDEN PROVIDED SD CARD
The second chart, below, is with the Samsung Pro Endurance, the reads are a touch slower, which is in line with my unoffical power on timer test but take a look at those write speeds.....
SAMSUNG PRO ENDURANCE, 32GB SD
I just found two more screen shots I want to include, the first is the Uniden shipped 8GB micro SD card, take not of the consistantly low write speed on the graph.
UNIDEN PROVIDED SD CARD
The second one is the same test using the Samsung, notice how much smoother and less chopping, not to mention how much higher the write speed is.... it's important to remember these aren't every now and then write sessions, it's doing it almost constantly if the buffer is full.
SAMSUNG PRO ENDURANCE, 32GB SD
And that right there is what we care about not only during our file transfer work but more importantly, during the times that the system is constantly writing to the card as it does the audio recording for playback (if you have that turned on). This card is going to dump it's buffer and be ready for more a lot sooner than the one shipped with the unit.
Purely unscientific but it was interesting to see, if nothing else, should have comfort that with a few bucks outlay, you can have up to 32GB of storage for approx the same read/write times you're getting now, the higher speed in the quality card, negates any negative impact to using a larger card. If this has already been done, then disregard.
Have a good evening...
Jen
The cards came in, I went through the motions, and hit a roadblock, Sentinel could not connect to the server to do the firmware update after you do the clear data step.... 1.5 hours later, after all sorts of network troubleshooting on my end, to see what was going on, I noticed Uniden's letter saying they and their servers would be down this weekend.... ok, glad I have backups....
Cards went in..and while the Uniden provided bulk brand micro sd did not do so shabby on the 'reading' files section..... the 'writing' files to the card area is where the Samsung (or probably any name brand card) blew the Uniden provided one out of the water.
For kicks I did an unscientific test with the iPhone stop watch, from start of turning on the 200 till the display lit up in full colors, on the original card was 16.38, with the new Samsung high endurance and speedier card, it was 16.80, yup, a hair longer for the new Samsung card. This was with only a couple favorites lists loading, a couple of Phoenix ones, not super full.
But here's where that virtually identical time is actually a win..... the OEM no name toss upon opening card was 8GB, this "just a hair slower" time was pulled in with a 32GB card, the largest that the current bios will allow.... So go big gentlemen, it's not going to impact your loading time if you get a reasonably fast card (but more importantly your intention should be a high endurance card, most of them are fast anyways as they're meant for 4k video cameras etc.
Ok, I did some speed tests outside the scanner today... my laptop has a micro SD slot on it which was handy, there is no induced latency due to a Micro SD to SD card adapter etc...
The first one is running a suite of read/writes with the 8GB Uniden supplied card, this was a 3 pass tests using file sizes of 100mb to a targeted folder on the SD card. Note the write speed, you'll be comparing that later
Keep in mind, the numbers you're seeing here, and further down are not a measurement of time, as in seconds, it's the number of MB/s that card was able to process/get written into the card including digitized audio tracks from the playback feature, larger is better.
For those wanting to learn the specifics around the tests included and the numbers, here are a couple of links:
How to check drive read and write performance speeds on Windows 10 • Pureinfotech
The manual is half way down this page:
CrystalDiskMark
UNIDEN PROVIDED SD CARD
The second chart, below, is with the Samsung Pro Endurance, the reads are a touch slower, which is in line with my unoffical power on timer test but take a look at those write speeds.....
SAMSUNG PRO ENDURANCE, 32GB SD
I just found two more screen shots I want to include, the first is the Uniden shipped 8GB micro SD card, take not of the consistantly low write speed on the graph.
UNIDEN PROVIDED SD CARD
The second one is the same test using the Samsung, notice how much smoother and less chopping, not to mention how much higher the write speed is.... it's important to remember these aren't every now and then write sessions, it's doing it almost constantly if the buffer is full.
SAMSUNG PRO ENDURANCE, 32GB SD
And that right there is what we care about not only during our file transfer work but more importantly, during the times that the system is constantly writing to the card as it does the audio recording for playback (if you have that turned on). This card is going to dump it's buffer and be ready for more a lot sooner than the one shipped with the unit.
Purely unscientific but it was interesting to see, if nothing else, should have comfort that with a few bucks outlay, you can have up to 32GB of storage for approx the same read/write times you're getting now, the higher speed in the quality card, negates any negative impact to using a larger card. If this has already been done, then disregard.
Have a good evening...
Jen
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