gqrx below 24mhz

[Les Norton]

I normally use HDSDR but i have to do it dual booting my mac or running an emulator, i have a macbook air, my main SDR is a SDRplay but i know there has been problems with this so will forget that for now, I also have one of these chinese copy RTL.SDR boxes which i played with before getting the SDRplay, it has 2 antenna inputs UV and HF

I downloaded gqrx for the first time, it was great to see a program that you could actually use with a mac.

Signals on the airbands came booming in and i was impressed with the audio.

I tried to go below 24mhz and it would not allow tuning, is there anyway to tune below 24? 

The driver it picks up is RTL2838UHIDR (realtek)

Thanks

[Les Norton]

Just forgot to mention that the box its self does tune below 24mhz and is supposed to.

I can indeed get stations on the HF bands 80mtrs/4omtrs etc and it resolves ok but thats with other software.

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[Alexandru Csete]

[Alexandru Csete]

I'm not familiar with this device but there have been some discussions
about it not so long ago.

As I recall, you need to put the device into direct sampling mode. In
the device configuration dialog change the config string from

rtl=0

to either

rtl=0,direct_samp=2

or

rtl=0,direct_samp=1

You will have to disable direct sampling to use VHF/UHF again, or use
different configuration files to the two modes.

Alex