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-   -   WINB @ 13690 kHz (http://www.drmrx.org/forum/showthread.php?t=2832)

tpreitzel 30-10-2018 13:52

WINB @ 13690 kHz
 
1 Attachment(s)
I'll be posting the log in a bit.

RANT
I need to rant a bit about interference from Cuba which has been ongoing for DECADES. If Cuba wants to remain outside the international order, so be it, but Cuba needs to play by SOME of the rules governing shortwave broadcasts. My recommendation for dealing with Cuba's ultra-wide noise, sometimes 50 kHz wide, consists of soliciting the NASB, HFCC, and WBCQ for an agreement on using the 500 kW capability of WBCQ's new transmitter to periodically override Cuba's broadcasts on a number of their frequencies until Cuba begins to play ball. In no way, shape, or form will Cuba be able to withstand such power. I'm willing to bet that Cuba, much, MUCH sooner than later, will understand that their former petulant and cavalier attitude on shortwave will have to be replaced with respect and cooperation. Let Cuba attempt to retaliate in vain if necessary. One either disciplines a petulant child like Cuba or the current intolerable situation continues. No one LIKES to discipline a petulant child, but it MUST be done unfortunately.
/RANT

This log will naturally be significantly marred by Cuba's wide-band noise on 13700 kHz. The frequency of 13690 kHz is pretty clear itself, but Cuba's adjacent noise just tarnishes it during Cuba's broadcasting.

tpreitzel 31-10-2018 20:55

1 Attachment(s)
Oct 31st, 2018 partial log ....


Frequency: +
Codec: -
Modulation: -

Notice the radical plunge in reception around 1300Z. Is it a bird? Is it a plane? No, it's super jammer, Cuba!

G4TMV 01-11-2018 14:50

I still get a lot of drop outs on this new frequency, but there are stretches during the afternoon when the signal peaks and is quite reliable. I've been trying to compile a list of programmes heard to see if there is some sort of regular schedule and will post the results shortly.

Cumbredx 02-11-2018 17:33

WINB Program Schedule
 
Hi Alan - Most of the time, we are taking a stream from our analogue service.
You would find it // to our internet and/or telephone streams.

Since we are not on both analogue and DRM at the same time, what you are hearing is a repeat of what we ran the day before on the analogue service.
You can find that schedule at winb.com

We have a few DRM-only programs such as Wavescan. I have been announcing such programs via Twitter at @SWWINB

I hope this helps and saves you the trouble of trying to compile a schedule from scratch.

I'd welcome any screen shots and/or audio files you have have, you can send them to winb40th@yahoo.com or share them via Twitter. Thanks.

Sincerely,

Hans

G4TMV 02-11-2018 17:51

Hi Hans,

Thanks a lot for the update. I'd noticed that some programmes like 'Your Weekend Show', 'Doctor Wong' and 'Studio DX' seemed to appear at regular times, but many of the others without any regularity, so that explains things now.

I've been recording much of this week's output (in between drop outs), and it has been quite good at times during the mid-afternoon period here. I've also done a few screen dumps of the signal on my Dream software, and was planning to get some reports off to you.

I am subscribed to your Twitter feed, but being the only person on the planet who doesn't have a smartphone I have to remember to check it on my browser occasionally! :-)

I've just added a second sound card at long last, so can leave the DRM decoder running all the time now, which is a big help.

Thanks again,


Quote:

Originally Posted by Cumbredx
Hi Alan - Most of the time, we are taking a stream from our analogue service.
You would find it // to our internet and/or telephone streams.

Since we are not on both analogue and DRM at the same time, what you are hearing is a repeat of what we ran the day before on the analogue service.
You can find that schedule at winb.com

We have a few DRM-only programs such as Wavescan. I have been announcing such programs via Twitter at @SWWINB

I hope this helps and saves you the trouble of trying to compile a schedule from scratch.

I'd welcome any screen shots and/or audio files you have have, you can send them to winb40th@yahoo.com or share them via Twitter. Thanks.

Sincerely,

Hans


tpreitzel 02-11-2018 22:31

1 Attachment(s)
Nov 2nd, 2018 partial log ....


Frequency: +
Codec: -
Modulation: -

AF4MP 04-11-2018 13:06

WINB Datacasting continued..
 
2 Attachment(s)
My friend, Antonio, in Italy runs an interesting blog related to data transmissions on HF http://i56578-swl.blogspot.com/

Recently he directly received the WINB combo transmission and sent a report on twitter to WINB (attachment 1).

What is most interesting is that WINB has confirmed, in the twitter replies (attachment 2) that they are in fact running a separate data channel.

This appears to be the first time that WINB has acknowledged what everybody has been observing since they started their broadcasts/datacasting!

tpreitzel 05-11-2018 15:25

1 Attachment(s)
Nov 5th, 2018 partial log ...

Frequency: +
Codec: -
Modulation: -

PhilipOneL 06-11-2018 14:53

Mid-day here in downtown St. John's, Newfoundland (1550 UTC) and the WINB DRM signal on 13690 is making it here fairly well, though not high enough to warrant sticking with it. Audio decoding is about 30% of the time. My MR27024 (with an 8 m wire aerial) is registering fairly high MER rates -- 13 - 16 dB, but still with fairly poor decoding. My Avion (with the Sony AN-LP1 loop antenna) is showing lower MER: 6 to 10 dB.

--------------
EDIT, 45 minutes later, 1650UTC.
I took the Avion and the loop antenna downstairs after posting this. For whatever reason, after 1600 my reception of WINB's DRM was nearly perfect, with MER 13 to 18 dB. Very close to 100% decoding. I have just listened to most of a rightist talk or interview show, with a rightist interviewer talking to a rightist media fellow named Bob Parks, which I misheard as Marx -- I had to Google his company name to find his name. :)

I do not know if the reception improved so radically because after 1600 it intrinsically improved, or if somehow my downstairs is freer of noise. I will check this out over the next few days.

---------------
EDIT, 1705 UTC
AT 1700 the frequency shut down. The programme was Bob Bearman's Your Weekend Show.

PhilipOneL 07-11-2018 14:28

Just before local noon, (1530 UTC, 7 Nov 2018), I am hearing WINB with about 75% audio decoding on my Avion set, with the Sony loop antenna aimed just west of South, at Pennsylvania.

Downtown, St John's, Newfoundland. In my more electrically quiet room. . .

tpreitzel 08-11-2018 12:11

1 Attachment(s)
Nov 7th, 2018 partial log ...

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tpreitzel 09-11-2018 00:34

1 Attachment(s)
Nov 8th, 2018 partial log ...

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tpreitzel 09-11-2018 19:16

1 Attachment(s)
Nov 9th, 2018 partial log ...

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tpreitzel 12-11-2018 16:45

1 Attachment(s)
Nov 9th, 2018 partial log ... Interference from Cuba is ALWAYS a problem on shortwave and will continue to be until the Cuban government is properly disciplined so they STOP these 40 to 50 kHz wide trashy broadcasts.

Frequency: +
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Modulation: -

AF4MP 13-11-2018 17:47

WINB 13690 kHz Signal Analysis
 
2 Attachment(s)
This morning the propagation skip shortened a little and I was able to receive a weak signal from the WINB combo signal. The System Evaluation screen (Attachment 1) shows that the DRM portion of the signal has a higher amplitude than the Data side. This is different from the transmissions earlier in the spring when the 15670 kHz spectrum looked the opposite with the Data portion at a higher level ( See thread: DRM WINB 15670 Khz message #44 attachment 2).

Attachment 2 (below) shows a recent view of the received spectrum from a KiwiSDR web receiver. The amplitude (A) of the datacasting portion is about 3dB lower than the DRM side. In addition a new "Guard Band" (B) has been introduced.

These changes are probably meant to reduce interference to the DRM signal by the datacasting component.

According to Antonio's blog http://i56578-swl.blogspot.com/2018/...rm-single.html the datacasting signal appears to be OFDM (Orthogonal Frequency Division Multiplex) "that is not sending data but just an unmodulated (maybe) OFDM waveform".

This leads me to speculate, for what it's worth, that these relative low power WINB combo transmissions are primarily as a "proof of concept" to test the data simulcast configuration.

The lessons learned from these broadcasts, I continue to speculate, will probably be put to use with the new WBCQ Super station that is being built in Monticello Maine. The FCC filing documents indicate that there is a relationship with the new station and WINB.


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