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Re: ExtIO_RTLSDR_u8.dll with HDSDR 2.76 + dongle

Posted: Fri Aug 09, 2019 7:10 am
by qrp
richsch, When you select "Auto Q", there is no need to switch direct sampling manually. It will be automatically switch on/off when your LO frequency goes below 24 MHz. You're don't need to change anything, just change LO and direct sampling will be automatically enabled and disabled. You can forgot about this setting when "Auto Q" is selected. :)

If you want manual switch, then use:
- "Disabled" to disable direct sampling (to receive 24 - 1700 MHz)
- "Q input" to enable direct sampling on Q branch (to receive 0...24 MHz)

Just tested, all works as expected. If I don't understand your issue, please explain more details.

Re: ExtIO_RTLSDR_u8.dll with HDSDR 2.76 + dongle

Posted: Sun Aug 25, 2019 7:36 pm
by richsch
Understood...tnx for clarification
One question....just wondering why below 24 Mhz for disabling direct sampling?