On Wed, 23 Apr 2014 12:04:52 +0500
ali hanif email@example.com wrote:
I am facing issues regarding WX GUI fft sink block…
First that whatever center frequency i am providing it is showing a peak at
that frequency whether input signal is there or not…??
The peak means that there is a DC bias component in your signal. That’s
pretty normal, depending on what kind of hardware you use.
E.g. a bladeRF will show it, while (at least some) RTL-SDR don’t have
Secondly there is a question that whether it can automatically shift to the
frequency by detecting the frequency of the input signal or not??
You can supply the center frequency to the block. You can specify it
as a variable to all blocks that need it, in order to have it to change
only at one place.
Another issue in general that i am unable to use two sink blocks at the
same time…e.g.if i am using fft sink and scope sink then when i execute
it(i have no hardware attached uptill now)…then both plots are empty and i
have to disable one of them to get working…??
That sounds weird. Can you show a screenshot of your GRC graph?
(unless you are using a coded flow graph, than that please).
The trouble with you, Shev, is you don’t say anything until you’ve saved
up a whole truckload of damned heavy brick arguments and then you dump
them all out and never look at the bleeding body mangled beneath the
– Tirin, The Dispossessed, U. Le Guin