Recent Posts

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91
FM Scope Script Files / Re: FM Scope 1.5 rev. 22
« Last post by electron on November 06, 2018, 05:02:24 am »
No, I just want to know the changes - fixes regarding previous version. The only thing which I noticed, was the visual change in signal bar, but I' m sure that is not the only one.
92
FM Scope Script Files / Re: FM Scope 1.5 rev. 22
« Last post by Jan on November 05, 2018, 09:13:59 pm »
Are you interested in a specific feature or function?
93
FM Scope Script Files / FM Scope 1.5 rev. 22
« Last post by electron on November 05, 2018, 08:15:37 pm »
Dear, Jan could you please attach the change log file, for new fm scope software?

Thanks in advance.
94
P132, P232 and P332 RDS Encoders / Re: RDS 332 DPS2 mode will not stay on word parsing
« Last post by Jan on October 25, 2018, 07:59:54 am »
Thank you for your report. It works ok for me. Could you send me the firmware version? If possible, post me the configuration to email (in the Magic RDS, select File / Backup / RDS Encoder).
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P132, P232 and P332 RDS Encoders / RDS 332 DPS2 mode will not stay on word parsing
« Last post by jeffrey1967 on October 24, 2018, 07:53:09 pm »
If i set dps2 to mode 2 word parsing in the web page or magic rds press send and store it does not save. When I hit read it shows blank in the mode box. The rds display comes out as 8 character.  I am sending the text to it by internal scheduled saved message.


96
P275 FM Analyzer / Re: Recommended procedure for setting up a known deviation
« Last post by electron on October 24, 2018, 11:55:14 am »
Thank you for your analysis.
97
P275 FM Analyzer / Re: Recommended procedure for setting up a known deviation
« Last post by Jan on October 24, 2018, 09:48:08 am »
If better option is not available, you may probably use such testing configuration (31.2 kHz @ 75 kHz deviation) with similar result on most equipment. However such configuration has at least three disadvantages:
  • it does not represent an FM broadcast testing signal because such condition cannot occur in real FM broadcasting (neither theoretically nor intentionally - with exception of SSB coders)
  • accuracy is affected because in real MPX signal most energy is below 15 kHz so adjustment should be made using a signal from this region
  • requirements for the FM carrier output spectrum are exceeded during the test
98
P275 FM Analyzer / Re: Recommended procedure for setting up a known deviation
« Last post by electron on October 23, 2018, 08:40:29 pm »
In breakaway site there is different opinion regarding null calibration.
https://www.claessonedwards.com/41-bafm/index.php?option=com_content&view=article&id=53&Itemid=67

Which is your comment about this?
99
P275 FM Analyzer / Re: Recommended procedure for setting up a known deviation
« Last post by Jan on October 23, 2018, 02:24:09 pm »
In FM broadcast, single tone above 15 kHz cannot cause 75 kHz deviation.
100
P275 FM Analyzer / Recommended procedure for setting up a known deviation
« Last post by electron on October 23, 2018, 11:18:41 am »
Dear Jan in fm scope user guide, description for proper frequency setting up deviation at 75Khz is 3rd carrier null (8,67khz). My question is why we must use this frequency instead 31187,6Khz? Is there any limitation regarding your fm analyzer?
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