ExtIO_RTLSDR# - custom ExtIO for RTLSDR

Main forum to discuss RTL-SDR related topics.
dlritter
Posts: 44
Joined: Mon Nov 23, 2015 1:08 am

Re: ExtIO_RTLSDR# - custom ExtIO for RTLSDR

Post by dlritter » Fri Dec 13, 2019 7:43 pm

The latest version of SDRuno (ver 1.33)is shipping with SDRuno.EXTIO.exe (ver1.05)again included.
So we don't have to keep 2 separate installs

ik3jls
Posts: 2
Joined: Fri Dec 13, 2019 7:26 am

Re: ExtIO_RTLSDR# - custom ExtIO for RTLSDR

Post by ik3jls » Mon Dec 16, 2019 11:12 am

OK, now SDRuno works (extio.dll copied in to Documents folder).
Just another question: how is possible to reduce the RF gain ?
In particular on low hf bands where the noise is so high.
Many thanks
Nicola

qrp
Posts: 44
Joined: Wed May 22, 2019 11:16 pm

Re: ExtIO_RTLSDR# - custom ExtIO for RTLSDR

Post by qrp » Mon Dec 16, 2019 10:29 pm

ik3jls wrote:
Mon Dec 16, 2019 11:12 am
how is possible to reduce the RF gain ?
In particular on low hf bands where the noise is so high.
There is no way to tune gain for direct sampling mode on RTLSDR dongle. Because there is no hardware which allows to change gain. Gain can be tuned for tuner, which is not used in direct sampling mode. So, the only way to change gain for HF band is to add external attenuator or LNA.

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