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Post by BuzzerMcMarcel on Jan 12, 2014 23:52:53 GMT
In this topic i will post my regular updates about MDZhB's performance and transmission, as I did in the WebSDR-chat. Each post will be a new update.
All measurements regarding transmission mode and signal strength will be conducted, unless stated otherwise, using the following setup:
Radio: WebSDR Twente (http://websdr.ewi.utwente.nl:8901) Frequency: 4625 kHz Modulation: USB Bandwith: 3.05 kHz @ -6dB; 3.51 kHz @ -60dB
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Post by BuzzerMcMarcel on Jan 13, 2014 0:00:51 GMT
OBG2014 update nr. 1: Date/Time: | 2014-01-12/23:55z.
| Remarks: | There are no additional remarks.
| Update: | MDZhB is transmitting as normal in R3E, signal strength steady at S9. No messages have been broadcasted since last update. No abnormalities regarding transmission behaviour or signal strength have been observed during recent periods.
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This concludes today's coverage of MDZhB. End of OBG2014 update nr. 1.
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Post by BuzzerMcMarcel on Jan 13, 2014 21:03:40 GMT
OBG2014 update nr. 2: Date/Time: | 2014-01-13/21:00z
| Remarks: | There are no additional remarks | Messages: | At 18:22, MDZhB broadcasted the following message: МДЖБ 24 217 БАРВЕНА 06 80 51 51 ПРИЕМ
| Update: | MDZhB is transmitting in R3E with a very suppressed LSB, signal almost resembles H3E. Carrier signal strength averages S5-S7, buzzer signal strength averages S7-S9. One message has been broadcast. No abnormalities regarding either transmission power or behaviour have been observed or noted in recent periods. |
This concludes today's coverage of MDZhB. End of OBG2014 update nr. 2.
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Post by Peter Spb on Jan 14, 2014 8:45:20 GMT
There was a power failure on buzzer site at 12.37 moscow time. The buzz generator has slowed down and stoped for a few seconds until the power has been restored. The carrier was active (due to another power source). Same issue as on PIP quite often
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Post by BuzzerMcMarcel on Jan 14, 2014 21:50:32 GMT
OBG2014 update nr. 3. Date/Time: | 2014-01-14/21:45z | Remarks: | There are no additional remarks. | Update: | MDZhB is still transmitting in R3E, with a very well suppressed LSB, close to H3E. No messages have been broadcasted since last update. One abnormaility has been noted: At 12:37 Moscow time, the generator of MDZhB suffered a power failure. This power failure presented itself as a slowing down and eventually stopping of the buzzing sound. The carrier remained active due to it being run from a seperate power source. After a few seconds the buzzer resumed normal operation. No further abnormalities have been either observed or noted in recent periods. |
This concludes today's coverage of MDZhB. End of OBG2014 update nr. 3.
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Post by BuzzerMcMarcel on Jan 15, 2014 20:31:38 GMT
OBG2014 update nr. 4: Date/Time: | 2014-01-15/20:30z | Remarks: | There are no additional remarks. | Messages: | Transcript 2nd msg: 85 757 TALOVKA 54 31 77 96 | Update: | MDZhB is transmitting as normal in R3E. Carrier signal strength steady at S7, buzzer signal strength steady at S9. 2 messages have been broadcasted. No abnormalities regarding either transmission power or behaviour have been observed or noted in recent periods.
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This concludes today's coverage of MDZhB. End of OBG2014 update nr. 4.
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Post by BuzzerMcMarcel on Jan 16, 2014 21:09:41 GMT
OBG2014 update nr. 5.: Date/Time: | 2014-01-16/21:10z | Remarks: | There are no additional remarks | Messages: | 1st msg; 12:35: МДЖБ МДЖБ 27 732 БАЛОБАН 92 20 23 53 ПРИЕМ 2nd msg; 14:38: МДЖБ МДЖБ 96 893 ЧАЛМ ?? ?? 88 56 ПРИЕМ 3rd msg; 14:43: МДЖБ МДЖБ 68 744 ГАЛ 34 87 96 06 ПРИЕМ 4th msg; 14:56: МДЖБ МДЖБ 25 994 КАПКАН 43 10 76 39 ВАЛИУМ 91 67 30 95 ПРИЕМ 5th msg; 15:03: МДЖБ МДЖБ 88 343 КАЛИОТЕГИ 34 64 27 40 ГАЛЛИКТ 39 47 37 31 КАЛИЗАН 60 37 15 49 ПРИЕМ 6th msg; 15:57: МДЖБ МДЖБ 31 648 ГАЛЛИЯ 13 98 34 06 ПРИЕМ
| Update: | MDZhB is transmitting as usual in R3E, almost resembling H3E. Carrier signal strength steady at a weak S7, buzzer signal strength steady at S8 - S9. Six messages have been broadcasted. No abnormalities in either transmission behaviour or signal strength have been observed or noted in recent periods. |
This concludes today's coverage of MDZhB. End of OBG2014 update nr. 5.
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Post by BuzzerMcMarcel on Jan 17, 2014 13:55:29 GMT
OBG2014 NOTICE nr. 1: Date/Time: | 2014-01-17/13:55z | Reason: | Temporary change in update schedule | Notice: | Due to lack of access to WebSDR, no OBG2014 updates will be posted until further notice. For more information please contact via PM. |
End of OBG2014 NOTICE nr. 1.
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Post by BuzzerMcMarcel on Jan 19, 2014 21:44:24 GMT
OBG2014 update nr. 6: Date/Time: | 2014-01-19/21:40z | Remarks: | This update cancels OBG2014 NOTICE nr. 1. | Messages: | Due to the lengthy gap between the last update and this one, I shall not list the messages here, but instead I refer to the Recordings section of this forum. | Update: | MDZhB is transmitting in R3E. carrier signal strength is steady at S7, buzzer signal strength is between S9 and S9+10db, with spikes almost reaching S9+20dB. 1 abnormality has been noted: MDZhB's buzzing sound has decreased slightly in pitch. I do not know at this time when or how this change occured. This will require further monitoring. |
This concludes today's coverage of MDZhB. End of OBG2014 update nr. 6.
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Post by numberstationsgal on Jan 19, 2014 23:53:13 GMT
It has decreased and listening to it on USB, you can hear 2 buzzers.
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Post by BuzzerMcMarcel on Jan 20, 2014 22:52:03 GMT
OBG2014 update nr. 7: Date/Time: | 2014-01-20/22:45z | Remarks: | There are no additional remarks. | Messages: | No messages have been broadcast. | Update: | MDZhB is transmitting in R3E, with very poorly suppressed LSB-portion, almost resembling full AM. Carrier signal strength is steady at S7, buzzer signal strength varies between S9 and S9+10dB with spikes (almost) reaching S9+20dB. The abnormality noted in OBG2014 update nr. 6 is still active. This seems to be related to the actual device that creates the buzzing sound. As has been said, this will require further monitoring. |
This concludes today's coverage of MDZhB. End of OBG2014 update nr. 7.
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Post by BuzzerMcMarcel on Jan 21, 2014 21:23:41 GMT
OBG2014 update nr. 8: Date/Time | 2014-01-21/21:20z | Remarks: | There are no additional remarks. | Messages: | No messages have been broadcasted. | Update: | MDZhB is transmitting in R3E with moderate to poorly suppressed LSB-portion. Carrier signal strength averages S7, buzzer signal strength averages S9, with spikes reaching S9+10dB. The abnormality mentioned in OBG2014 nr. 6 is still present. At the time of writing no definitive reason has been found for this change. |
This concludes today's coverage of MDZhB. End of OBG2014 update nr 8.
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Post by BuzzerMcMarcel on Jan 21, 2014 22:12:01 GMT
OBG2014 NOTICE nr. 2: Date/Time: | 2014-01-21/22:10z | Reason: | Sudden change in Buzzer pitch | Notice: | At 22:05z, MDZhB experienced a sudden increase in pitch, followed by fluctuations in pitch. After about 1 minute it resumed the lowered buzzing sound. |
End of OBG2014 NOTICE nr. 2.
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Post by BuzzerMcMarcel on Jan 22, 2014 21:00:49 GMT
OBG2014 update nr. 9: Date/Time: | 2014-01-22/21:00z | Remarks: | There are no additional remarks.
| Messages: | Transcript 1st msg: 13:36 MDZhB 45 320 MALDYKA 93 66 49 27 Priem Transcript 2nd msg: 13:46 MDZhB 81 800 GALBAN 24 85 88 62 Priem Transcript 3rd msg: 13: 47 MDZhB 54 155 TALAUD 32 15 99 40 Priem Transcript 4th msg: 13:52 MDZhB 66 131 PALATOPNYJ 81 64 76 73
| Update: | MZDhB is transmitting in R3E. Carrier signal strength averages S6 to S7, buzzer signal strength averages S9. The abnormality of update nr. 6 is still in effect, probably due to power issues. One further abnormality has been noted: Just before a buzz is transmitted, a helicopter-like sound can be heard. Although it seems related, this can not be confirmed at this early stage.
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This concludes today's coverage of MDZhB. End of OBG2014 update nr. 9.
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Post by BuzzerMcMarcel on Jan 23, 2014 22:28:50 GMT
OBG2014 update nr. 10: Date/Time:
| 2014-01-23/22:20z | Remarks: | This update cancels the abnormality mentioned in update nr 6.
| Messages: | No messages have been transmitted.
| Update: | MDZhB is transmitting in R3E with reasonably suppressed LSB-portion. Carrier signal strength is S6, buzzer signal strength is a weak S9. One abnormality has been noted: Throughout the evening MDZhB's buzzer signal has been fluctuating, some buzzes changed pitch halfway, other buzzes were at normal pitch with the next one being low pitched and vice versa. This abnormality is probably also due to certain power issues at the site. Further monitoring and analysis by our Russian colleagues will be necessary to either confirm or deny this.
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This concludes today's coverage of MDZhB. End of OBG2014 update nr. 10.
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