Re: Problems with the Frequency Xlating FIR Filter

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.
>>