User Tools

Site Tools


en:faq

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
en:faq [2019/05/01 10:05] – [What do I have to do in order to relocate the station] fluktuaciaen:faq [2019/05/01 11:49] (current) – [There are no meteors visible on waterfall, what should I do?] fluktuacia
Line 31: Line 31:
   - Check that disconnecting the coaxial cable from the station causes a noise reduction   - Check that disconnecting the coaxial cable from the station causes a noise reduction
   - Observe the live spectrogram for a longer period of time using for example an  [[en:pysdr|pySDR]] programme. Make sure that you cannot see any changes in the intensity of signal that may indicate a presence of an intensive local interference   - Observe the live spectrogram for a longer period of time using for example an  [[en:pysdr|pySDR]] programme. Make sure that you cannot see any changes in the intensity of signal that may indicate a presence of an intensive local interference
-  - Check the local oscillator calibration with (?? Na nejbližším vysílači) the nearest transmitter, see [[cs:rmds&#lokalni_oscilator_prijimace|LO calibration]].+  - Check the local oscillator calibration with the nearest transmitter, see [[en:rmds&#lokalni_oscilator_prijimace|LO calibration]].
   - Check if the preamplifier is not damaged (it can manifest as LED flashing on the power module)   - Check if the preamplifier is not damaged (it can manifest as LED flashing on the power module)
  
 ==== I cannot tune the local oscillator ==== ==== I cannot tune the local oscillator ====
  
-  - Check I²C cabling, which is used to control the local oscillator.+  - Check I²C cabling, which is used to control the local oscillator
   - Check if the GPS sees the satellites (e.g. using xgps utility)    - Check if the GPS sees the satellites (e.g. using xgps utility) 
-      * If the GPS sees them and has fix, restart frequency-guard. +      * If the GPS sees them and has fix, restart frequency-guard 
-      * If the GPS does not have fix, check its antenna and its coaxial cable.  +      * If the GPS does not have fix, check its antenna and its coaxial cable.  
-  - Check the connectors on both sides of wires connected to [[http://wiki.mlab.cz/doku.php?id=cs:clkgen|CLKGEN]] module. +  - Check the connectors on both sides of wires connected to [[http://wiki.mlab.cz/doku.php?id=cs:clkgen|CLKGEN]] module 
-  - Replace the GPS antenna. +  - Replace the GPS antenna 
-  - Use shorter cable with GPS antenna.+  - Use shorter cable with GPS antenna
  
 ==== Where can I find more detailed documentation ==== ==== Where can I find more detailed documentation ====
en/faq.1556705103.txt.gz · Last modified: 2019/05/01 10:05 by fluktuacia