"Static" Sound at Idle - Stuttering Indicators

[MattMPA]

Good day! The SFR1 in my Tamiya Scania started something odd today.

If I start the engine sound....I get intermittent static. It seems that if the truck is in motion, this doesn't occur.

I also noticed that if I turn on the 4 way hazard lights...they stutter and get out of sync with the sound when the static sound occurs.

I further noticed that when the stat noise occurs - the blue LED on the SFR1 momentarily goes off.

I thought it was my location when it started - but it does it at home too.

Thankful for thoughts. I do have a video of this....but not sure how to link. https://youtube.com/shorts/aD5JjER0C9w

[Rascal]

Hello Matt,

try reformatting the SD card (make sure you have a copy of the project on your PC!) and save the project again.
If the problem still occurs please upload your configuration file (*.sfr) and a diagnosis file.

[MattMPA]

Hi Rascal!

I formatted the card and reloaded the files. Worked fine!

However, I had to make a number of adjustments to the file, which I did via the USB. After the finally change...the static was back worse than before.

I re-formatted the cards and loaded again. Made 1 additional change via USB.

This time, so far...so good!

Thanks as always for your help. I think moving forward, I should simply format the re-load the card as a precaution when anything seems amiss.

[Rascal]

I would also get a spare SD card if you don't have one already, seems there might be somthing wrong with it.

[MattMPA]

Good idea....if I don't have one...I can get one.

I think I've been using 32gb cards. Are there guidelines as to size, speed, etc?

[Rascal]

Hello Matt,

the maximum ist 32GB and you need a card with a very fast access rate. Unfortunately there is no particular marking which indicates a very fast access rate, let alone guarantee it. See also here for some explanation.

Your best bet is some new (as in recently released), branded card.

[MattMPA]

Thanks Rascal. I'me very familiar with the speeds, etc on SD cards, I use them in professional video.

I never gave a thought that the SFR1 is reading from the card the entire time it is in use. Makes much more sense.

Now that I study the card that came with the SFR1, I see it listed as a Class 10...that'll get me in the right direction.