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Author Topic: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z  (Read 2020 times)

Offline skeezix

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Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« on: December 14, 2012, 0112 UTC »
Received a few more Greenland NAVTEX catches on 518 kHZ.  Had the loop headed in its direction this night.


XXX Upernavik/Disko Isl.,GRL  (2258 miles away)
2012-12-13 05:20:32> {}EPTWP UTC DEC 12
2012-12-13 05:20:36> GREENLAND UPERNAVIK
2012-12-13 05:20:45> NAVIGATIONAL WARNING JOINT ARCTIC COMMAND NO. 040/12.
2012-12-13 05:20:51> NORTHWEST COAST OF GREENLAND, NUUK.
2012-12-13 05:21:03> A SAFETY AT SEA EXERCISE WILL TAKE PLACE THURSDAY 13TH OF
2012-12-13 05:21:12> DECEMBER IN THE HOURS BETWEEN 1000 AND 1200 LMT.
2012-12-13 05:21:20> THE FOLLOWING PYROTECNIC WILL BE DISCHARGED:
2012-12-13 05:21:24> 2 REB PARACHUTE FLARES
2012-12-13 05:21:26> 2 RED FLARES
2012-12-13 05:21:30> 2 ORANGE SMOKESIGNALS
2012-12-13 05:21:39> CANCEL THIS WARNING 13TH OF DECEMBER 1400 LMT.
2012-12-13 05:21:41> NNNN


XXX Simiutaq/Cape Farewell,GRL (2072 miles away)
2012-12-13 06:00:38> ZCZC MA32   
2012-12-13 06:00:41> 130600 UTC DEC 12
2012-12-13 06:00:44> GREENLAND SIMIUTAQ
2012-12-13 06:00:54> NAVIGATIONAL WARNING JOINT ARCTIC COMMAND NO. 041/12.
2012-12-13 06:01:01> NORTHWEST COAST OF GREENLAND, PAAMIUT.
2012-12-13 06:01:12> A SAFETY AT SEA EXERCISE WILL TAKE PLACE THURSDAY 13TH OF
2012-12-13 06:01:21> DECEMBER IN THE HOURS BETWEEN 1000 AND 1200 LMT.
2012-12-13 06:01:29> THE FOLLOWING PYROTECNIC WILL BE DISCHARGED:
2012-12-13 06:01:33> 3 RED PARACHUTE FLARES
2012-12-13 06:01:36> 3 RED FLARES
2012-12-13 06:01:40> 3 ORANGE SMOKESIGNALS
2012-12-13 06:01:49> CANCEL THIS WARNING 13TH OF DECEMBER 1400 LMT.
2012-12-13 06:01:50> NNNN


XXX Upernavik/Disko Isl.,GRL
2012-12-13 09:20:49> ZCZC IA32   
2012-12-13 09:20:52> 130920 UTC DEC 12
2012-12-13 09:20:55> GREENLAND UPERNAVIK
2012-12-13 09:21:03> NAVIGATIONAL WARNING JOINTT ALCTAC~ COMMAND~O9
2012-12-13 09:21:05> ~~~9~-?
2012-12-13 09:21:05>
2012-12-13 09:21:12> ~+~#$0~#~.&~+~#8.&~~#.& 600`2#.&::=#?9,&#.&3&0
2012-12-13 09:21:23> 3#.5(##.& 0#.&0&06/!30#.&7!``#.&#=0#.&SXP{}TH OF
2012-12-13 09:21:32> DECEMBER IN THE HOU S BEGWEEN 1000 AND 1~00 LMT.
2012-12-13 09:21:40> THE FOLLOWING PYROTECNIC WILL BE DISCHARGED:
2012-12-13 09:21:44> 2 RED PARACHUTE FLARES
2012-12-13 09:21:46> 2 RED FLARES
2012-12-13 09:21:50> 2 ORANGE SMOKESIGNALS
2012-12-13 09:21:59> [CANCEL] THIS WARNING 13TH 39! DECEMBER 1400 L~T.
2012-12-13 09:21:59> NNNN


Was a busy night... Also had:
NMW Astoria, OR, USA
NMQ Cambria, USA
NMG New Orleans, USA
NMC San Francisco (Point Reyes) USA
XMJ329 Prescott, ON, CAN
A bunch of UNIDs (weak signals, probably due to the loop rejecting them).

NMW & NMC had a lot to say.





Perseus SDR with Wellbrook ALA1530S+ loop using YaRD for NAVTEX decoding






Minneapolis, MN

Offline ChrisSmolinski

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Re: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« Reply #1 on: December 14, 2012, 1330 UTC »
I copied Prescott, ON this morning at 1313z. Not nearly as exciting as Greenland, but I was happy because I finally tracked down the source of a giant S9 QRM signal right smack on 518 kHz. The bad news is that it is the Pride of China power supply for my 10 MHz GPS reference. So it looks like I'll need to find another one to use.
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Offline Kilokat7

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Re: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« Reply #2 on: December 15, 2012, 0223 UTC »
Received a few more Greenland NAVTEX catches on 518 kHZ.  Had the loop headed in its direction this night.

Nice job on Greenland!  I think it's the only way to hear Greenland on MW these days.

I let Yand run overnight and captured stations located here:



Looks like the furthest was San Juan at 2,038 miles.  I haven't caught Greenland yet.
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1980s pirate off-air archive

Offline skeezix

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Re: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« Reply #3 on: December 15, 2012, 0518 UTC »
Nice map!

Haven't tried for PR yet. Was going to let it run overnight last night with the loop N-S, but there was some QRM blasting away on LW & into the lower part of MW making copying anything on 518 impossible. Pride of China.  ;D  Too funny... I'm going to steal that.

Looks like things are relatively calm for the QRM tonight, so will leave the antenna NNW-SSE and see what comes up.

So far after only a few minutes of listening, got New Orleans (G) and Prescott, ON (H) with 100%. Both are S8-S9. Although, Prescott is just down the road a piece (relatively speaking), so big deal. Wish they could send some poutine on 518.

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Offline Kilokat7

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Re: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« Reply #4 on: December 15, 2012, 0626 UTC »
It's not pretty, but I think I just nailed Greenland!

2012-12-15 06:00:33> {}~~~~U~~~{}CZC MZ93   
2012-12-15 06:00:37> 1506008UTC ?$3: 02
2012-12-15 06:00:40> $&433,)-,? SIMIUTAQ
2012-12-15 06:00:44> NO MESSAGE ON HJODE
2012-12-15 06:00:45> NNNN
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Location: Western Michigan
Perseus SDR / Phased BOGs or Double Kaz
1980s pirate off-air archive

Offline skeezix

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Re: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« Reply #5 on: December 15, 2012, 1416 UTC »
Yes, it looks like you did. Too bad they didn't have more to say.

Last night heard San Juan (R), Portsmouth (N), Sept-Iles (C), New Orleans (G), Prescott (H), and Thunder Bay (P).

Tonight will try NW-SE and see if Bermuda comes in.

« Last Edit: December 15, 2012, 1430 UTC by skeezix »
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Offline skeezix

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Re: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« Reply #6 on: December 16, 2012, 1717 UTC »
Got Bermuda (4B) early this morning, as well as Prescott (4H), Cambria (12Q), Thunder Bay (4P), New Orleans (4G), San Juan (4R), Portsmouth (4N), Tofino (12H), Sept-Isles (4C), and Miami (4A).

This was with the antenna NE-SW (roughly 30-210 deg).

Tuned to 490 around 03Z and picked up several messages from Sydney (4J). Not overly strong, but good enough.

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Offline Kilokat7

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Re: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« Reply #7 on: December 17, 2012, 2353 UTC »
NMW Astoria, Oregon in the overnight logs, a new one for me.  Good copy between 0750-0810 with several short messages.  I'm amazed how well these stations get out.  Anyone know what kind of power they put out?
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Offline skeezix

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Re: Greenland 518 kHz NAVTEX Dec 13, 2012 0520Z
« Reply #8 on: December 18, 2012, 0154 UTC »
NMW Astoria, Oregon in the overnight logs, a new one for me.  Good copy between 0750-0810 with several short messages.  I'm amazed how well these stations get out.  Anyone know what kind of power they put out?

Good question.

Tried to look it up, but not much found. Came somewhat close-ish on p10, which suggests 100-1kW depending on range desired.
http://www.sjospeider.org/navguide.pdf

Looks like Greenland recently received some new NAVTEX transmitters:
http://www.danphone.com/Files/Filer/Pdf/News_Dec10.pdf

Those are the 1 kW model:
http://www.danphone.com/Products/Radio_Communication_Systems/Navtex_Transmitters.aspx

Details:
http://www.danphone.com/Files/Filer/Pdf/Danphone%20NAVTEX%20System.pdf


Found a couple of other xmtrs and they vary from 75 W to 3 kW.

Some info on the Iqaluit, Canada station (but no power):
http://www.iho.int/mtg_docs/com_wg/CPRNW/WWNWS4/WWNWS4-3-2-XVII_XVIII.pdf

Nice little chart at the end showing their pattern. Pointed away from here, so now I have to try to get them. ;)

Unless there's a list floating around, perhaps its time to send off a bunch of reception reports and see if they stick it on there.  Planning on doing that myself. Need to sort & assemble a useful list of stations for sending reports, then find their addresses.



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