Re: Problems with the Frequency Xlating FIR Filter

Also, after running python3, you'll likely need to run

from gnuradio.filter import firdes

before running the firdes.low_pass(... instruction.

El 26/1/22 a las 15:27, Marcus Müller escribió:
> Hi Michelle,
>
> https://en.wikipedia.org/wiki/REPL : What Martin means is simply the
> Python language shell you get when you run `python3` in a console.
>
> Best regards,
> Marcus
>
> On 26.01.22 14:24, Michelle wrote:
>> Good morning Martin,
>>
>> please can you explain to me what you mean by REPL?
>>
>> Thank you have a good day
>>
>> On 2022-01-25 05:04, Martin Braun wrote:
>>> Can you try running this in a REPL to see what the return value of
>>> firdes.lowpass(...) is?
>>>
>>> --M
>>>
>>> On Tue, Jan 25, 2022 at 2:03 AM Michelle <mkprojects731@gmail.com>
>>> wrote:
>>>
>>>     hello,
>>>
>>>     I'm using a FIR filter and I have the error : "Param - Taps(taps):
>>>     Expression None is invalid for type'complex_vector'."
>>>
>>>     my taps is : firdes.low_pass ( 1, samp_rate, frec_carrier,
>>>     25000,firdes.WIN_HAMMING )
>>>
>>>     samp_rate and  frec_carrier are both variables in my graph.
>>>
>>>     I don't understand why I have an error. Please could you tell me
>>> what I
>>>     am doing wrong?
>>>
>>>
>>>     Thank you.
>>>