RTL SDR dongle with lower sample rate than 220KHz

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jeromebi
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Joined: Mon Dec 03, 2018 4:42 pm

RTL SDR dongle with lower sample rate than 220KHz

Post by jeromebi » Tue Dec 04, 2018 9:59 am

Does anyone know if there is any way to set the sample rate of RTL SDR dongle (2832U) to a lower value than 220KHz ?

I am currently using RTL SDR 2832 USB stick V3. The default sample rate set in the code is currently 2.4MHz (code is giving "const int DEFAULT_SAMP_RATE = 2400000;").
I can set the sample rate to a lower frequency, but when I set it to a lower value than 220KHz, I got an error which seems to come from the RTL SDR dongle driver.

Is there any way to allow my RTL SDR dongle driver (RTL 2832U) to accept a lower sample rate than 220KHz, which seems to be the minimum accepted yet ?

Otherwise, are you aware of any other RTL SDR dongle than 2832U that would accept a lower sample rate (ideally lower than 125KHz) ?

Thanks a lot to anyone who can provide feedback about it.

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Evap1
Posts: 26
Joined: Sun Nov 25, 2018 2:54 pm

Re: RTL SDR dongle with lower sample rate than 220KHz

Post by Evap1 » Tue Dec 04, 2018 11:31 pm

Hi Jeromebi,
There used to be a set of tools on the rtl-sdr.ru site.
But they will only work with older versions of sdr#
V1500 and some earlier versions.
Please see picture.
Evap1
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Evap1
Posts: 26
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Re: RTL SDR dongle with lower sample rate than 220KHz

Post by Evap1 » Wed Dec 05, 2018 2:34 am

Hi Again Jeromebi,
Some more of the options available.
Evap1
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Evap1
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Re: RTL SDR dongle with lower sample rate than 220KHz

Post by Evap1 » Wed Dec 05, 2018 6:57 am

Sorry,
forgot to show device sample rate dialogue box options.
See below.
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