Common problems and solutions 700/800 SBIII:

Common problems and solutions 700/800 SBIII:

• Unwanted signals 40dB greater than desired ones, excessive AGC –
  • use narrowing filter kit.
• High signals less than 40 dB affecting desired ones (desired signal not being heard)
  • Setup digital filtering to attenuate undesired signal.
  • Use narrowing filter kit when applicable.
• Popping Radios - Squelch may be set too low.
  •  Increase the squelch setting.  BDA could be picking up excessive noise.
• BDA not picking up signal.
  • Squelch may be set too low.  Increases squelch setting.
  • Signal is too low to receive, below the noise floor.
• Channel does not un-squelch (could be a noisy channel)
  • Reduce the squelch setting.
• Noisy signals –  
  • Filters may not be wide enough to pass the entire channel.
  • Overlapping filters
  • Squelch set to low.
  • Increase output power if it is set to low.
• ADC Overflow Alarm, excessive input signal (-30 to -20dBm)
  • Reduce AGC reference level.
• “Breathing” signals, Static sounds (AGC trying to keep up with Modulation scheme, e.g., digital p25)
  • Adjust AGC hold and decay time.
  • Use factory preset AGC settings for APCO P25
  • Adjust OLC hold and Decay time for a particular channel.
  • Use Factory preset OLC Settings for APCO P25
• Oscillation(s)
  • Reduce BDA gain.
  • Increase antenna to antenna isolation.
• Problem with a particular channel
  • Factory reset.
  • Ensure all channels are initialized with data regardless of if it is used or not. 
• Excessive Filter Delay
  • Reduce the adjacent channel offset and adjacent channel rejection of filter.
  • Widen the filter.
  • Use factory preset low delay filters.
• Alarm on Link page / Excessively high PA current
  • Could be a failing PA.  Contact Tech Support.
• Control Panel menu item not visible
  • Enter username and password under Administration menu.