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DSC logs for the last week from North Carolina USA

Jay Novello
 

Reporting the Namibia 8414.5 UNID as logged, but I’m unsure if it's bogus or what - seems unusual?

Receiver: Airspy HF+ Discovery
Antenna:  it depends what I have switched in at the moment, usually a Wellbrook ALA100
Software: MultiPSK 4.42, YaDD (report was produced via yaddnet.org extract), GMDSS-Display

2187.5 :
20200210 0206 2187.5 002050480 Ostende Radio, Belgium
20200210 0436 2187.5 002191000 Lyngby Radio, Denmark
20200210 0202 2187.5 002241022 Coruna Radio, Spain
20200211 0031 2187.5 002241024 Valencia Radio, Spain
20200211 2340 2187.5 002241026 Las Palmas Radio, Spain
20200215 0421 2187.5 002275100 CROSS Gris Nez, France
20200210 0235 2187.5 002320004 Aberdeen Coastguard, United Kingdom
20200212 0309 2187.5 002320017 Milford Haven Coastguard, United Kingdom
20200210 0515 2187.5 002320021 Belfast Coastguard, United Kingdom
20200213 0328 2187.5 002371000 Olympia Radio, Greece
20200210 0139 2187.5 002442000 Netherlands CG Radio, Netherlands
20200216 0519 2187.5 002470002 Palermo Radio, Italy
20200212 0358 2187.5 002500200 Valentia Radio, Ireland
20200212 0504 2187.5 002510100 Reykjavik Radio, Iceland
20200211 0128 2187.5 002570000 Public Correspondence, Norway
20200214 0208 2187.5 002570500 Floroe Radio, Norway
20200215 0409 2187.5 002570800 Vardo Radio, Norway
20200212 0013 2187.5 002711000 Istanbul Radio, Turkey
20200210 0200 2187.5 003061000 Curacao Radio, Neth. Antilles
20200210 0651 2187.5 003100001 Bermuda Harbour Radio, Bermuda
20200215 0307 2187.5 003313000 Aasiaat Radio, Greenland

4207.5 :
20200212 2247 4207.5 002241022 Coruna Radio, Spain
20200212 2231 4207.5 003669995 Chesapeake, USA
20200210 2345 4207.5 003669998 New Orleans, USA

6312.0 :
20200210 0019 6312.0 002371000 Olympia Radio, Greece

8414.5 :
20200215 2213 8414.5 002091000 Cyprus Radio, Cyprus
20200210 2253 8414.5 002241022 Coruna Radio, Spain
20200210 2145 8414.5 002371000 Olympia Radio, Greece
20200213 2104 8414.5 002711000 Istanbul Radio, Turkey
20200211 2235 8414.5 003669990 Point Reyes, USA
20200211 1717 8414.5 003669991 Boston, USA
20200211 2231 8414.5 003669995 Chesapeake, USA
20200211 1720 8414.5 003669997 Miami, USA
20200211 1728 8414.5 003669998 New Orleans, USA
20200210 2208 8414.5 005030001 RCC Australia, Australia
20200213 2226 8414.5 006010001 Cape Town Radio, South Africa
20200216 2138 8414.5 006590301 UNID, Namibia
20200210 2245 8414.5 007100003 Manaus Radio, Brazil
20200211 2327 8414.5 007251860 Valparaiso Radio, Chile

12577.0 :
20200212 1920 12577.0 003669998 New Orleans, USA

16804.5 :
20200214 1920 16804.5 007100001 Rio de Janeiro Radio, Brazil
20200214 1823 16804.5 007251860 Valparaiso Radio, Chile


Jay Novello
Wake Forest, NC USA

peter
 

On 17/02/2020 13:31, Jay Novello wrote:
Reporting the Namibia 8414.5 UNID as logged, but I’m unsure if it's bogus or what - seems unusual?

Hi Jay,

It seems an unusual one and nothing listed for Namibia - possible bogus. Time will tell if there are more logs.

Regards,

Peter

John Pumford-Green
 

On 18/02/2020 09:01, peter via Groups.Io wrote:
On 17/02/2020 13:31, Jay Novello wrote:
Reporting the Namibia 8414.5 UNID as logged, but I’m unsure if it's bogus or what - seems unusual?

Hi Jay,
It seems an unusual one and nothing listed for Namibia - possible bogus. Time will tell if there are more logs.
Regards,
Peter
Jay,

Can you look through the messages on your copy of YaDD and copy this one to the list, including the "RAW FEC" symbols? I'd like to see what you actually received, as it certainly seems dodgy, although on the face of it everything passed the error checking. This isn't impossible, the correct corruptions can still fool the parity and CRC checks, and it's always interesting/instructive to examine a bogus message to see what's happened.

I see from YaDDNEt that the vessel had just called Coruna a minute before:


Time : 2020-02-16 21:37:07
Monitor : ncjay
Frequency : 8414.5 kHz
Format : SEL
To : COAST 002241022 : Coruna Radio : Spain
Category : SAF
From : SHIP 355320000 : KIRKEHOLMEN, 3FIV4, Tanker : Panama
Tele 1 : TEST
Tele 2 : NOINF
Freq : --
Pos : --
EOS : REQ
ECC : OK



and then you saw a reply from "UNID, Namibia":

Time : 2020-02-16 21:38:23
Monitor : ncjay
Frequency : 8414.5 kHz
Format : SEL
To : SHIP 355320000 : KIRKEHOLMEN, 3FIV4, Tanker : Panama
Category : SAF
From : COAST 006590301 : UNID : Namibia
Tele 1 : TEST
Tele 2 : NOINF
Freq : --
Pos : --
EOS : ACK
ECC : OK


Cheers,

John



--
http://www.yaddnet.org/index.php

Jay Novello
 

Sure, John - my reply has been rejected by the mail server multiple times, so I’m wondering if it’s something about the multiple tildes in the RAW FEC data.  Seems to me I remember a few decades ago with those causing problems with some variation of mailserver.

So I stuck the relevant portion of my YaDD log into a text file and put it on Dropbox for you to pick up and look at - here it is:


Thanks
Jay



On Feb 18, 2020, at 11:58 AM, John Pumford-Green <gm4slv@...> wrote:



On 18/02/2020 09:01, peter via Groups.Io wrote:
On 17/02/2020 13:31, Jay Novello wrote:
Reporting the Namibia 8414.5 UNID as logged, but I’m unsure if it's bogus or what - seems unusual?


Hi Jay,
It seems an unusual one and nothing listed for Namibia - possible bogus. Time will tell if there are more logs.
Regards,
Peter

Jay,

Can you look through the messages on your copy of YaDD and copy this one to the list, including the "RAW FEC" symbols? I'd like to see what you actually received, as it certainly seems dodgy, although on the face of it everything passed the error checking. This isn't impossible, the correct corruptions can still fool the parity and CRC checks, and it's always interesting/instructive to examine a bogus message to see what's happened.

I see from YaDDNEt that the vessel had just called Coruna a minute before:


    Time : 2020-02-16 21:37:07
 Monitor : ncjay
Frequency : 8414.5 kHz
  Format : SEL
      To : COAST 002241022 : Coruna Radio : Spain
Category : SAF
    From : SHIP 355320000 : KIRKEHOLMEN, 3FIV4, Tanker : Panama
  Tele 1 : TEST
  Tele 2 : NOINF
    Freq : --
     Pos : --
     EOS : REQ
     ECC : OK



and then you saw a reply from "UNID, Namibia":

    Time : 2020-02-16 21:38:23
 Monitor : ncjay
Frequency : 8414.5 kHz
  Format : SEL
      To : SHIP 355320000 : KIRKEHOLMEN, 3FIV4, Tanker : Panama
Category : SAF
    From : COAST 006590301 : UNID : Namibia
  Tele 1 : TEST
  Tele 2 : NOINF
    Freq : --
     Pos : --
     EOS : ACK
     ECC : OK


Cheers,

John



--
http://www.yaddnet.org/index.php






Richard Ware
 

On Mon, 17 Feb 2020 at 13:31, Jay Novello <jnovello@...> wrote:

Reporting the Namibia 8414.5 UNID as logged, but I’m unsure if it's bogus or what - seems unusual?
Folks

I sent an email to the Namibia SAR address in my copy of ALRS Volume
5, just on the offchance. That was on 21st. I received an email this
morning (23rd) to say it wasn't delivered as the address was unknown.
Very handy. According to their Master Plan (2017) they have no
dedicated SAR assets but things can and do change.

I'll have to think of a Plan B

Rich