Voice of Russia on 15780 kHz

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  • df9rb
    Registered User
    • Jun 2004
    • 484

    Super condx this morning. SNR several minutes above 40 dB

    Bernd, DF9RB
    Attached Files

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    • Per
      Registered User
      • Nov 2002
      • 1601

      Aug 20

      Hi,

      Very peculiar reception this morning from VoR. Time 07:30 - 08:00.
      Attached Files
      73's Per - SM0ITS

      Comment

      • dk8cb
        Roland
        • Mar 2004
        • 2748

        August 24

        Hi,

        strong interference from an AM signal 4 kHz (!) higher. Identification of the AM signal was difficult because of the DRM signal but I think they were broadcasting in hebrew.

        Roland
        Attached Files

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        • Andreas
          Junior Member
          • Jul 2005
          • 215

          Hi,

          In my recent edition of Siebel's "Sender und Frequenzen" it reads that Israelian military broadcast station Galei Zahal is on air with 10 kW on 15785 so I bet you were right with hebrew.....

          73, Andreas

          Comment

          • dk8cb
            Roland
            • Mar 2004
            • 2748

            Hi Andreas,

            that's actually the station I thought of, but about I was not sure, so I did not post my assumption.
            In the past, because of it being a military station, it has sometimes used off-channel and out-of-band frequencies. So 15784 kHz is quite possible.

            Roland

            Comment

            • Andreas
              Junior Member
              • Jul 2005
              • 215

              Hi Roland,

              Now I'm exactly tuned on 15780kHz.

              The DRM signal of VoR is gone, although they are still scheduled to be on air

              On the right is Galei Zahal, exactly 5 kHz above, and 10 kHz on the left is, what I guess to be AIR Delhi.

              Mysteries of propagation...........

              73 and 51, Andreas

              Comment

              • dk8cb
                Roland
                • Mar 2004
                • 2748

                Hi Andreas,

                that's strange, because before, the carrier was 1 kHz within the DRM spectrum. Perhaps deliberately!?

                If you switch to input spectrum instead of input PSD, you will see a lot more!

                Roland

                Comment

                • df9rb
                  Registered User
                  • Jun 2004
                  • 484

                  Hi all,

                  here a 3 hours log. I used two receivers on the same antenna and two PCs. The DRT1 from SAT-Schneider is a little better than the TS850. The DRT1 has an excellent AGC, the TS850 has been running with manual gain control. I did not readjust the gain during the 3 hours and the drop outs were caused by deep fadings whereas the AGC of the DRT1 corrected these fadings.

                  Bernd, DF9RB
                  Attached Files

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                  • Janucha
                    Registered User
                    • Nov 2004
                    • 46

                    raport from yesterday
                    Attached Files
                    ____________________________
                    President Lincoln+converter+downconverter on MOSFET BF 961+antenna GP/long wire
                    First successful DRM reception: 09.01.2004

                    Comment

                    • df9rb
                      Registered User
                      • Jun 2004
                      • 484

                      Hi all,

                      100 % audio for 260 minutes, max SNR=43.6 dB!

                      Bernd, DF9RB

                      Comment

                      • FritzWue
                        Registered User
                        • Mar 2003
                        • 6269

                        No good results on that ferquency at my location. Probably I am too far in the northwest.
                        Attached Files
                        Last edited by FritzWue; 2005-09-07, 12:40.
                        Friedrich.....DK6QI.....52°N 07°E
                        https://www.qrz.com/db/dk6qi/

                        Comment

                        • df8uo
                          Registered User
                          • Aug 2003
                          • 217

                          Excellent this morning. Got my highest SNR of 38.7 dB.
                          73, Daniel
                          Attached Files

                          Comment

                          • df9rb
                            Registered User
                            • Jun 2004
                            • 484

                            Very good today. SNR > 43 dB. 1st graph DRT1, 2n TS850, both sharing the same antenna (3 ele Ham Yagi).

                            Bernd, DF9RB
                            Attached Files

                            Comment

                            • df9rb
                              Registered User
                              • Jun 2004
                              • 484

                              Excellent conditions this morning. SNR not below 41 dB now for 30 minutes!!!!

                              Bernd, DF9RB

                              Comment

                              • df9rb
                                Registered User
                                • Jun 2004
                                • 484

                                Hi all,

                                VoR booming in today like a lokal FM-station
                                Under todays excellent conditions only short SNR peaks are visible in DRMCalc.

                                Bernd, DF9RB
                                Attached Files

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