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Old 26-07-2017, 23:02   #91
tpreitzel
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Quote:
Originally Posted by Braccini
MER MAX: 15dB. No decoding. Please MSC 16QAM!!

Naturally, I agree. If Radio Kuwait were smart, they'd prepare NOW for DRM via xHE-AAC on shortwave. Use a robust configuration of 16 QAM for the MSC from ~ 12 kbps to 18 kbps, even mode A if necessary, for the new xHE-AAC plus receivers. This range of bit-rates will easily support parametric stereo and excellent quality sound on shortwave. We'll see soon enough if the broadcasters of Radio Kuwait are smart or not.

To fully appreciate the potential of the xHE-AAC at robust and RELIABLE configurations, we consumers need to be prepared to buy new DRM receivers, though. Are you ready?

Last edited by tpreitzel : 26-07-2017 at 23:05.
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Old 27-07-2017, 09:52   #92
Braccini
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Quote:
Originally Posted by tpreitzel
Naturally, I agree. If Radio Kuwait were smart, they'd prepare NOW for DRM via xHE-AAC on shortwave. Use a robust configuration of 16 QAM for the MSC from ~ 12 kbps to 18 kbps, even mode A if necessary, for the new xHE-AAC plus receivers. This range of bit-rates will easily support parametric stereo and excellent quality sound on shortwave. We'll see soon enough if the broadcasters of Radio Kuwait are smart or not.

To fully appreciate the potential of the xHE-AAC at robust and RELIABLE configurations, we consumers need to be prepared to buy new DRM receivers, though. Are you ready?
I'm ready, but I'm going to have to spend $ 250 on a Gospell or $ 300 on an Avion ... I did not dare to buy yet
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Old 27-07-2017, 17:32   #93
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26 Jul 2017 : Radio Kuwait on 15540 kHz from Al Kabd

There was 99% decoded audio during the transmission.

15:00-18:00 UTC Planetary K-index 1. Local K-index 2.
18:00-21:00 UTC Planetary K-index 2-. Local K-index 2.

Planetary A-index: 9. Solar flux: 69. SESC Sunspot number: No data available.
Sunset 20:00 UTC.
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Old 27-07-2017, 21:24   #94
Braccini
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July_27

Strong signal in Brazil today:
DRM: https://youtu.be/U-36JwPOvKs
AM mode: https://youtu.be/LbJMp0p1DqE

Clint 73!
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Old 28-07-2017, 15:59   #95
Braccini
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Excellent video. See! https://youtu.be/sTz-K2CYqZs
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Old 28-07-2017, 18:10   #96
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27 Jul 2017 : Radio Kuwait on 15540 kHz from Al Kabd

There was 87% decoded audio during the transmission.

15:00-18:00 UTC Planetary K-index 3-. Local K-index 3.
18:00-21:00 UTC Planetary K-index 0+. Local K-index 1.

Planetary A-index: 11. Solar flux: 68. SESC Sunspot number: No data available.
Sunset 19:59 UTC.
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Old 28-07-2017, 19:42   #97
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July_28

A result for 88 mins. The signal was strong and stable, a figure of 36.2dB max SNR noticed.
After ~18:50 the signal dropped by 40 - 50dBs and decoding stopped. The signal came back at about 19:00 strong and lasted for about 15 mins when dropped again for good.
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Old 28-07-2017, 22:27   #98
PhilipOneL
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I'm getting no Kuwait reception anymore

For about two weeks I have not seen any sign here in Eastern Newfoundland of Kuwait's DRM signal on 15540 kHz. (I have seen no sign at all of the one on 13650.) Has there been a change in their 15540 directionality? That is, were they using a different azimuth several weeks ago when I was receiving them?

It seems to me that 350 degrees from Kuwait may go far too north (and thus west over North America) for my reception, but 310 degrees might take it fairly close to me. Nonetheless, I see nothing on either my loop-antenna-attached Avion or my eight-metre-wire-attached MR27024.

It would be interesting to see exactly what coverage they *are* getting.
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Old 29-07-2017, 08:25   #99
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28 Jul 2017 : Radio Kuwait on 15540 kHz from Al Kabd

There was 92% decoded audio during the first half of the transmission but only 2% during the second half.

15:00-18:00 UTC Planetary K-index 2+. Local K-index 3.
18:00-21:00 UTC Planetary K-index 2+. Local K-index 3.

Planetary A-index: 6. Solar flux: 70. SESC Sunspot number: No data available.
Sunset 19:57 UTC.

Hi Philip, sorry to hear that you are no longer receiving the signal. I am hoping we might find out a little more about the transmissions shortly, so watch this space.
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Old 29-07-2017, 14:36   #100
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July_28 :o

Very, very strong and beautiful signal in south of Brazil. Congratulations for Radio Kuwait DRM program!!!!!!!!!!
Video: https://youtu.be/D_VjVydl1hU

Clint 73!
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Old 30-07-2017, 13:32   #101
Braccini
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July_29

Amazing signal and program. The spread dropped at 20:20 UTC and returned no more audio. On the 28th this did not occur. Clint 73!

Vídeo: https://youtu.be/75mxNTi_rxs
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Old 30-07-2017, 18:36   #102
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29 Jul 2017 : Radio Kuwait on 15540 kHz from Al Kabd

There was 99% decoded audio until 18:43 UTC, then there was <1%!

15:00-18:00 UTC Planetary K-index 1-. Local K-index 1.
18:00-21:00 UTC Planetary K-index 0+. Local K-index 1.

Planetary A-index: 7. Solar flux: 70. SESC Sunspot number: No data available.
Sunset 19:56 UTC.
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Old 31-07-2017, 05:13   #103
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30 Jul 2017 : Radio Kuwait on 15540 kHz from Al Kabd

There was 88% decoded audio during the transmission.

15:00-18:00 UTC Planetary K-index 0+. Local K-index 1.
18:00-21:00 UTC Planetary K-index 1. Local K-index 2.

Planetary A-index: 4. Solar flux: 69. SESC Sunspot number: 12.
Sunset 19:54 UTC.
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Old 31-07-2017, 08:48   #104
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Dear all,
These are test transmissions from Radio Kuwait after Ampegons refurbishing project:
http://ampegon.com/news/?id=80

Tests have been started with xHE-AAC but we changed back to AAC due to the limited decoding capabilites of the available receivers.
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Old 31-07-2017, 09:11   #105
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@Ampegon: Thank you for the confirmation on having used the xHE-AAC.
That is why the Gospell GR-216 I have here in Stockholm was able to decode the audio!

It would be interesting to listen to another test on 13 or 15 MHz with the xHE-AAC.
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Last edited by Digger : 31-07-2017 at 12:45.
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