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Loggings => Shortwave Broadcast => Topic started by: Enigma Explorer on August 15, 2014, 0251 UTC

Title: DRM NTV BWS R Andernach Aug 15th 2014 0215UTC No audio decode even with 30/9 sig
Post by: Enigma Explorer on August 15, 2014, 0251 UTC
 DRM NTV BWS R Andernach Aug 15th 2014 0215UTC No audio decode even with 30/9 signal.

Looks like others have reported the same for this DRM station not being able to decode the audio too.

Note I have tuned in the frequency to give a minimum Sample Frequency Offset of -0.06Hz. That results in a dial frequency of 7317.3kHz USB set at 9.2kHz width ( low cutoff freq of 2900Hz and high cutoff freq of 12100Hz)

All receptions for this log station description:
SDR-IQ using SpectraVue software and recording 190 kHz rf spectrum to
hard drive for repeated play back and configuration changes as needed to
improve copy intelligibility. Antenna is a Carolina Windom 265 feet long
running North to South with long run on the North end. Location is South
Bend, Indiana one mile South of the Michigan border out in the country.
Amateur radio callsign of WD8ARZ and name is Bill.

73 from Bill - WD8ARZ
Title: Re: DRM NTV BWS R Andernach Aug 15th 2014 0215UTC No audio decode even with 30/9 sig
Post by: glimmer twin on August 15, 2014, 1009 UTC
I've read somewhere that this is some sort of military thing. Intended for German soldiers. You're getting some impressive DRM logs. Congrats.
Title: Re: DRM NTV BWS R Andernach Aug 15th 2014 0215UTC No audio decode even with 30/9 sig
Post by: Enigma Explorer on August 15, 2014, 1234 UTC
Thank you Keith for your comments. Having good luck with propagation, a good antenna, and retired, that gives me the time to pursue this interest is sure helping to make me lucky. Not to mention its fun .... hi hi  :-)

Interesting about the military aspect of that DRM capture.

Been recording these signals to the hard drive as raw rf bandwidth with Spectravue. That allows for full signal re-examination some time in the future when software gets better.

73 from Bill - WD8ARZ
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Re: DRM NTV BWS R Andernach Aug 15th 2014 0215UTC No audio decode even with 30/9 sig

« Reply #1 on: Today at 10:09 »
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I've read somewhere that this is some sort of military thing. Intended for German soldiers. You're getting some impressive DRM logs. Congrats.

KCMO  Icom R 75 , SDR-IQ, Grundig Satellit 750 ,Tecsun PL 880, Tecsun PL660 , Tecsun PL380 & PL360  10 meter random wire  w/ RF systems MLB    Alpha Delta SWL DX sloper   qsl   keithglimmer810@gmail.com