# Have to re-plug Lime Mini Everytime
**URL:** https://discourse.myriadrf.org/t/have-to-re-plug-lime-mini-everytime/6719
**Category:** LimeSDR
**Created:** [22 November 2020 06:43 UTC](https://discourse.myriadrf.org/t/have-to-re-plug-lime-mini-everytime/6719 "2020-11-22T06:43:01Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@daniel](https://discourse.myriadrf.org/u/daniel)
#### Post date: [22 November 2020 06:43 UTC](https://discourse.myriadrf.org/t/have-to-re-plug-lime-mini-everytime/6719/1 "2020-11-22T06:43:01Z")
Perhaps someone can help.
I have below simple python script that works fine so far, but I always have to plug/unplug the Lime Mini to make it run properly, otherwise, the filter doesn’t set (GFIR LPF cannot be set to the requested bandwith…)
Any suggestion?
#!/usr/bin/env python3
# -_- coding: utf-8 -_-
from gnuradio import analog
from gnuradio import filter
from gnuradio.filter import firdes
from gnuradio import gr
import sys
from gnuradio.eng\_arg import eng\_float, intx
import limesdr
import time
class noise\_source(gr.top\_block):
```
def __init__ (self):
gr.top_block. __init__ (self, "")
##################################################
# Variables
##################################################
self.sample_rate = sample_rate = 32000
self.gain = gain = 10
##################################################
# Blocks
##################################################
#self.LimeSDR.calibrate(2.5e6, 0)
self.Noise_Source = analog.noise_source_f(analog.GR_UNIFORM, 1, 0)
self.LimeSDR = limesdr.sink('', 0, '', '')
self.LimeSDR.set_sample_rate(sample_rate)
self.LimeSDR.set_center_freq(500e6, 0)
self.LimeSDR.set_bandwidth(5e6, 0)
self.LimeSDR.set_digital_filter(sample_rate, 0)
self.LimeSDR.set_gain(gain, 0)
self.LimeSDR.set_antenna(255, 0)
self.band_pass_filter_1 = filter.fir_filter_fcc(1,firdes.complex_band_pass(1,sample_rate,300,3500,50,firdes.WIN_HAMMING,6.76))
##################################################
# Connections
##################################################
self.connect((self.Noise_Source, 0), (self.band_pass_filter_1, 0))
self.connect((self.band_pass_filter_1, 0), (self.LimeSDR, 0))
def set_sample_rate(self, sample_rate):
self.sample_rate = sample_rate
self.band_pass_filter_1.set_taps(firdes.complex_band_pass(1, self.sample_rate, 200, 3500, 50, firdes.WIN_HAMMING, 6.76))
def set_gain(self, gain):
self.gain = gain
self.LimeSDR.set_gain(self.gain, 0)
```
def main(gnu\_block=noise\_source):
```
gb = gnu_block()
gb.start()
for gain in range(10,73,2):
print (gain)
gb.set_gain(gain)
time.sleep(1)
gb.stop()
sys.exit()
```
if **name** == ‘ **main** ’:
main()
---
### Author:  [@andrewback](https://discourse.myriadrf.org/u/andrewback)
#### Post date: [22 November 2020 15:31 UTC](https://discourse.myriadrf.org/t/have-to-re-plug-lime-mini-everytime/6719/2 "2020-11-22T15:31:11Z")
What O/S and version etc?
---
### Author:  [@daniel](https://discourse.myriadrf.org/u/daniel)
#### Post date: [22 November 2020 16:10 UTC](https://discourse.myriadrf.org/t/have-to-re-plug-lime-mini-everytime/6719/3 "2020-11-22T16:10:27Z")
Linux 5.4.0-54-generic x86\_64
NAME=“Ubuntu”
VERSION=“20.04.1 LTS (Focal Fossa)”
ID=ubuntu
ID\_LIKE=debian
PRETTY\_NAME=“Ubuntu 20.04.1 LTS”
VERSION\_ID=“20.04”
GNU Radio Companion 3.8.2.0
Python 3.8.5
---
### Author:  [@andrewback](https://discourse.myriadrf.org/u/andrewback)
#### Post date: [23 November 2020 08:48 UTC](https://discourse.myriadrf.org/t/have-to-re-plug-lime-mini-everytime/6719/4 "2020-11-23T08:48:42Z")
Thanks, just wanted to check as ISTR an issue like this with OS X.
@Zack, anything to suggest?