Loading ...
Sorry, an error occurred while loading the content.

22573Re: [perseus_SDR] Help ID Noise

Expand Messages
  • Werner Karn
    Aug 18, 2014

      this 90 kHz noise with its plenty of harmonics is so strong, i.e. at 450 kHz with -30 dBm,  that I believe it is very close to your location and should be identifyable by a small quickly built loop antenna, may be 10 cm in diameter, used for direction finding. Or may be you have a portable AM radio with built-in ferrit antenna and tune to 540 or 630 or 720 and identify direction. I believe source to be most likely a switching power supply.



      2014-08-18 23:15 GMT+02:00 'Ron Castro' ronc@... [perseus_SDR] <perseus_SDR@yahoogroups.com>:



      I just logged in and noticed that the interference peaks about every 90 kHz.  This looks like either a computer monitor, plasma TV or switching power supply.  There has been a lot of interference these days from ‘grow lamps’, and you may have one in your neighborhood.


                Ron Castro






           Redwood Empire DX Assn.

      Northern California Contest Club

      Northern California DX Foundation

        Society of Broadcast Engineers



      From: perseus_SDR@yahoogroups.com [mailto:perseus_SDR@yahoogroups.com]
      Sent: August 18, 2014 12:30 PM
      To: perseus_SDR@yahoogroups.com
      Subject: [perseus_SDR] Help ID Noise


      My Perseus is online from Delaware, could somebody help me ID Noise. It is not Broadband but on certain frequencies. Check 1,070khz on Broadcast Band. I appreciate any one who can help me resolve the issue. I am the only one online from Delaware.


      Thank you




    • Show all 24 messages in this topic