[Linrad] Re: swap i/q data

[Rob PE1ITR <itr-datanet.com; rob@xxxxxxxxxxxxxxxx>]

Hi Leif,

Mni Thanks it worked :-)

It was for a windows computer so I had to compile a linrad.exe from my
linux computer for the first time. Installed the standard mingw32 for
fedora 10 ( yum install mingw32-\* ). This is without the i586-
mingw32msvc-gcc package which is needed. This one I downloaded from
your website. I noticed that the i586-mingw32msvc-gcc package is hard
to find on the internet.
Maybe I was looking at the wrong places...


73 Rob PE1ITR


On 9 aug, 18:03, Leif Asbrink <l...@xxxxxxxxxx> wrote:
> Hi Rob,
>
> > Is it possible to swap te I/Q data in linrad when using the sdr-iq or
> > perseus? I have a icom receiver with an if output of 10.7MHz but this
> > output is inverted.
>
> Yes. Change users.c around line 174:
>
> // This routine is responsible for setting
> // int fg.passband_direction = -1 or +1 depending on whether the
> // hardware local oscillator is above or below the desired signal.
> //************************************************************
> // This routine is responsible for setting
> // int fft1_direction = fg.passband_direction
>
> then rename to users_hwaredriver.c for Linux or wusers_hwaredriver.c
> for Windows. Then run configure and make.
>
> 73
>
> Leif
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