|
Hi Stefan,
as you have an image reject filter in the
RF path there will of course be no need for stereo processing. But
here I need I/Q as my FiFi-SDR equally receives from both sides of the LO. This
is actually convenient because it lets me view the two bands (472
and 501 kHz) simultaneously. Without software correction, image rejection
is about 46 dB with my netbook, but of course this can vary from device to
device.
Sorry no idea whether it's possible to read
the mouse wheel from SpecLab.
Best 73,
Markus (DF6NM)
Sent: Wednesday, June 20, 2012 7:30 PM
Subject: Re: LF: ... SDR programs
Hello Markus,
Oh, that looks nice, thanks for the info. I already thought that i
probably still have much to learn about SpecLab.
Well, i don't use an IQ
input here, that's why SDRadio is not my choice anyway ( i thought it can be
configured for an mono input).
Now i'm running the "SAQrcvr1.usr". Looks promising BUT:
How do i have to program (interpreter commands) SpecLab so that i can move the
filter over the band with the scroll wheel of the mouse? Maybe interesting for
others as well, so i'm asking here...
73, Stefan/DK7FC
Am
20.06.2012 13:03, schrieb Markus Vester:
Hi Stefan,
as shown in the "SAQrcvr1.usr" setup which comes with SpecLab, you
can define a marker which lets you pull the FFT filter
frequency with the mouse.
In some older versions (eg V2.78 b04), the FFT filter used to
crash with complex I/Q input, but this has been fixed in the recent
b08. Thanks Wolf, works like a charm ;-)
Best 73,
Markus
|
|
