recording to sd card

CQ CQ Troubleshooting
1

Did my first recording using the the onboard sd card function. I used 32gb scandisk class 10 100mb/s card but still got some cut outs anyone recommend a card that would be issue free? as l take it its the card thats the issue

2

Here’s the specs. I had issues like you described and then realized I was using an SDXC rather than the SDHC recommended:

3

Thanks,

Yes I looked at the class and speed got those right but missed the sdxc verses the sdhc. You tend to think of SD cards as being compatible but they are defiantly not

4

If you use an sdxc card (which can be greater that the fat32 32gb limit) you can’t format it reliably in the cq. But if you format it on your computer and manually add the folder structure that the cq uses for the recording files it should work.

It works ok for me if I format the card to fat32 on my Mac. I get the dropouts if I format on the cq.

So you could test that before buying a replacement. Users are managing with larger than 32gb cards in this way. Sdxc cards are basically a more up to date tech than sdhc so should mirror the sdhc spec and are backward compatible. But they must be fat32 formatted on the computer.

For sdhc I have used both Kingston and Sandisk brands ok. My sdxc cards are kingston 64gb.

Cheers
David

5

A factor at play here is that SDXC cards may be achieving the faster write/read speeds using the extra contacts that UHS-II deploys. CQ’s card slot can’t see these contacts so can’t take advantage of the speed they provide. So a UHS-II card in a UHS-I slot may run at half the speed that you’d expect.
In practice, this means that if you’re buying a card that isn’t an in-spec SDHC card, try to aim for performance way beyond what we recommend. I have a tested-by-me-but-not-officially-endorsed PNY card here that is 64GB SDXC UHS-II U3 card that offers 300MB/s read and 280MB/s write. It performs excellently on CQ. (But won’t be getting anywhere near those performance numbers in a SDHC card slot.)

There’s really good compatibility between all the different SD card standards but you will find that performance is very variable if you’re using it in something other than the same spec device.