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Old 05-12-2018, 23:37   #721
AF4MP
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AIR Bangalore India 7550 kHz reception near Atlanta, Georgia, USA

This afternoon's reception - no audio decoded, 9.37 dB max SNR.

Yesterday, at this receive location, was the date for the earliest sunset. Today is just a second off from that time but the propagation conditions have not been that good and consequently reception was off today.
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Old 06-12-2018, 23:55   #722
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AIR Bangalore India 7550 kHz reception near Atlanta, Georgia, USA

This afternoon's reception - continuing poor propagation - no audio decoded, abouit 10 dB max SNR.
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Old 08-12-2018, 18:44   #723
marsel90
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AIR on 7550 kHz from Bangalore

Good reception today from this drm radio

https://www.youtube.com/watch?v=pFQU...ature=youtu.be
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Old 08-12-2018, 20:02   #724
G4TMV
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Quote:
Originally Posted by marsel90
Good reception today from this drm radio

https://www.youtube.com/watch?v=pFQU...ature=youtu.be


Good signal, I never thought to try HDSDR for DRM, though I have had good results with SDR Console 3, so never really needed to see if it would work with my SDRplay or not. Must have a play with it! :-)
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Alan.

Modified NRD-525G with Radiokit DRM Decoder Board,
SDRplay RSP-1A, Airspy HF+ Discovery, Dream v2.1.1

Lancashire, UK 53:39.18N 02:10.28W IO83vp
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Old 08-12-2018, 22:43   #725
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Quote:
Originally Posted by marsel90
Good reception today from this drm radio

https://www.youtube.com/watch?v=pFQU...ature=youtu.be

I didn't examine the video as closely as I should have. What receiver were you using, an RTL-SDR? Frankly, I continue to be amazed at the v 3 RTL-SDR from http://www.rtl-sdr.com. All a user really needs is about 30' of flexible wire for an antenna if direct sampling is used. Add a discone antenna and the buyer has MW, HF, VHF, and frequencies into the gigahertz range available for a total investment of ~ $75. This $75 includes the price of the discone antenna as well as the RTL-SDR ... stunning ...

Last edited by tpreitzel : 08-12-2018 at 22:45.
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Old 09-12-2018, 00:47   #726
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AIR Bangalore India 7550 kHz reception near Atlanta, Georgia, USA

This afternoon's reception - no audio decoded, 9.43 dB max SNR.

Even though there was no audio decoding, what is interesting is that there was a detectable (SNR) signal, at this location, from the start of the broadcast!
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Old 09-12-2018, 06:08   #727
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AIR on 7550 kHz from Bangalore

I used the RTL_SDR receiver with HDSR for the antenna i use long wires.
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Old 09-12-2018, 17:26   #728
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If you can get SDR Console v3 to work with your RTL-SDR, it does offer some advantages, in that you can easily create your own IF Bandwidth filters, which is very useful for DRM signals, especially the ones on crowded bands. I made some of 10, 12, 15, 20 and 24 KHz, and when used with the 'Wide-L' mode they make a very useful selection of DRM Bandwidths to try out under different conditions.
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Modified NRD-525G with Radiokit DRM Decoder Board,
SDRplay RSP-1A, Airspy HF+ Discovery, Dream v2.1.1

Lancashire, UK 53:39.18N 02:10.28W IO83vp
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Old 09-12-2018, 18:55   #729
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AIR on 7550 kHz from Bangalore

Today the signal is mutch better.
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File Type: jpg DRMIndia2_opt.jpg (90.9 KB, 80 views)
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Old 09-12-2018, 22:23   #730
AF4MP
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AIR Bangalore India 7550 kHz reception near Atlanta, Georgia, USA

This afternoon's reception - no audio decoded, 10.00 dB max SNR.
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File Type: png 7550-181209-1900-2230-Zyg.png (34.6 KB, 93 views)
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Old 11-12-2018, 00:38   #731
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10-11 Dec. 2018

All India Radio logged for 124 minutes from 2244-0047 UTC. No label, just some LEDs lighted up in Dream. Max. 2,38 dB SNR and 0% decoded audio.
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https://www.hobbyradio.se/en/drm/web....index_en.html

Last edited by Digger : 11-12-2018 at 01:31.
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Old 11-12-2018, 14:58   #732
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AIR Bangalore India 7550 kHz reception near Atlanta, Georgia, USA

Yesterday afternoon's reception - no audio decoded, 14.88 dB max SNR.
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File Type: png 7550-181210-1800-2230-Zyg.png (32.0 KB, 80 views)
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Old 13-12-2018, 19:24   #733
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AIR on 7550 kHz from Bangalore

Today maybe is a good propagation, the signal is very strong!
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Old 14-12-2018, 22:07   #734
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AIR Bangalore India 7550 kHz reception near Atlanta, Georgia, USA

This afternoon's reception - 0.13% audio decoded, 16.27 dB max SNR.
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File Type: png 7550-181214-2010-2230-Zyg.png (36.7 KB, 76 views)
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Old 15-12-2018, 18:39   #735
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AIR on 7550 kHz from Bangalore

All the time signal is very stable.
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