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-   -   DRM WINB 15670 Khz (http://www.drmrx.org/forum/showthread.php?t=2800)

MARCEL 17-05-2018 17:10

DRM WINB 15670 Khz
 
To moment 15H35 Z of 15670 Khz I receive WINB SNR 11 to 17 db shortly audio cut from fading :

https://nsa39.casimages.com/img/2018...5809399367.jpg

tpreitzel 17-05-2018 17:50

Quote:

Originally Posted by MARCEL
To moment 15H35 Z of 15670 Khz I receive WINB SNR 11 to 17 db shortly audio cut from fading :

https://nsa39.casimages.com/img/2018...5809399367.jpg


I certainly wouldn't use 64 QAM modulation even at a low bit-rate. ;) Kudos to WINB for experimenting, though.

MARCEL 18-05-2018 12:52

WINB is on Air this moment 11H33 UTC of 15670 Khz.

MARCEL 18-05-2018 17:03

At 15h30 UTC I have other station of 15670 with litle interfence with DRM I think is AWR.

This day signal from WINB no so good that yesterday no audio :

https://nsa39.casimages.com/img/2018...5814737271.jpg

Cumbredx 18-05-2018 20:28

18/5 Reception on WINB in Naples, Florida
 
Got the WINB ID screen on the Gospell for a few minutes, that's it.

PhilipOneL 21-05-2018 13:38

Monday 21 May 2018, 1215 UTC. I've been tuned to WINB's 15670 fq for the past hour but I'm seeing nothing. But the entire 19mb has been poor with a few small breaks from the East, rather than from the West, and nothing as high as 15670 kHz.

I am about 2000 km NE of Red Lion. Is anyone closer to to the txr receiving it this morning?

Downtown St. John's, Newfoundland. MR27024 + 8 metre wire.

-----------
EDIT a minute later: having said that, I tuned up and discovered a fairly clear signal from Nashville on 15825. So: the MUF is high enough. . . .

PhilipOneL 22-05-2018 14:45

No sign of it here in St John's again today, Tuesday 22 May 2018 (checking between 1200 and now, 1325 UTC). There are *some* USA 19mb signals coming in here (for example Nashville on 15825 kHz).

tpreitzel 22-05-2018 14:50

Quote:

Originally Posted by PhilipOneL
No sign of it here in St John's again today, Tuesday 22 May 2018 (checking between 1200 and now, 1325 UTC). There are *some* USA 19mb signals coming in here (for example Nashville on 15825 kHz).


Philip,

Before I left home to access public WiFi, I left my SDR-4+ running DReaM and logging this broadcast. I didn't notice any DRM signal either. I suspect WINB hasn't been broadcasting so far this week. Hans can correct me if I'm wrong.

Cumbredx 23-05-2018 12:03

WINB
 
He's right, we have not been on this week yet. Let me do some asking and
see if I can find out when it will be on again.

Cumbredx 23-05-2018 22:13

Updates WINB
 
Hi All - After testing the ASI transmitter last week, WINB is making a few changes to it. So 15670 kHz won't be on for a few weeks, I'll let you guys know when we start back up again.

In the meantime, WINB might do some DRM tests on 9265 kHz but that will also be a process of test a bit, be off while changes are made, and come back on process.

73s,

Hans Johnson
Sales Manager, WINB

G4TMV 31-05-2018 16:01

Looks like they're testing again, I just got a brief ID here on Dream at 1440 UTC, not quite strong enough for any audio as yet though.

AF4MP 01-06-2018 17:14

WINB 15670 khz reception near Atlanta, Georgia, USA
 
2 Attachment(s)
There is a weak DRM signal that can be seen (attachment 1) on my Dream software waterfall display (receiver is the Kenwood R-1000).

A little stronger display from Miami via the KiwiSDR web receiver (attachment 2).

The DRM waveform, at around noon local time, can also be seen in Houston, Texas, and in Iceland via local KiwiSDR web receivers.

The signal is, not surprisingly, very weak everywhere. Unfortunately due to the current solar cycle the use of this frequency will not be particularly successful!

PhilipOneL 01-06-2018 18:05

I was lucky enough to sit down by the radio just a couple of minutes after 1600 UTC and check for WINB's DRM test on 15670 kHz.

I got a few minutes of its label before the signal disappeared. It was strong, at least for a little while, andI was surprised I could not get any audio decoded -- the MER remained high (11-15 dB) for stretches of 30 seconds or so. I wonder if they were actually b/cg any audio. . .

The fading was deep and the MER would keep shooting down to zero dB. By 1607, the signal had practically disappeared. Right now, just after 1645 UTC, there's nothing there and there hasn't been anything for twenty minutes or so.

By the way, I was very pleased to see that WINB's DRM mode reset my radio's time and date. Since the MorphyRichards has such a slow way to reset time & date, I have mostly given up on it. The majority of DRM txrs don't bother implementing that aspect of their signal (like, say, RRI) which is a bit annoying. Nigeria used to, though it was an unreliable time, and the BBC does, but I can only very irregularly pick them up. I hope WINB continues if only to reset my clock! :)

MorphyRichards 27024 set attached to an eight-metre wire strung out my window to the fence. In downtown St. John's, Newfoundland, about 2000 km to the NE of Red Lion, Pennsylvania where WINB is.

PhilipOneL 01-06-2018 18:18

It's just before 1700 UTC right now and I thought to tune the AM radio (Grundig Satellit 750) to 15670 kHz to see if there is anything there. There is an audio tone, somewhere in the 300-400 HZ area, maybe? Not the usual white-noise whoosh associated with DRM. Anyone else hearing that?

-------------
EDIT: A couple of minutes *after* 1700: the tone disappeared at 1700 UTC.

AF4MP 01-06-2018 19:05

1 Attachment(s)
Hi Philip,

According to VOACAP your location is one of a relatively few that should get a reasonable signal from this transmission (see the attachment) at 1600 UTC.

It would be nice to have a web receiver in Newfoundland!

Radio France International also has a broadcast at the same time, and on the same frequency, beaming 500 kW to Africa from Issoudun which could be the source of the tone.


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