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Marex News Oct 7 02, PMS List bug

ISS Amateur Radio Status: October 7, 2002

Packet Mail problem
Shuttle Launch expected

By Miles Mann WF1F,


Manned Amateur Radio Experiment, North American Division

ISS Packet Mail system problem:
There is a minor yet reoccurring problem with the Amateur Radio Personal
Message System (PMS) on board ISS.  Intermittently the PMS will fail to
display the list of messages stored in the memory of the PMS.  The
messages have not been lost, they are still in RAM memory.  I have
encountered this problem several times and each time the problem seems
to clear up bye its self on the next orbit. ISS crew time has not been
required to clear the problem.  When the problem does clear, all of the
old mail still appears to be saved in memory with out any lose of old

L(ist) L [CR] lists the 10 latest messages.
M(ine) M [CR] lists the 10 latest messages to/from your callsign.

PMS mail list example from September 9, 2002

On September 9, I received a listing from ik1sld in Italy, showing that
Valery had sent me a packet message.  A few hours later I logged into
ISS a few hours later from Boston.  To my surprise I could not see any
messages in the PMS by using the List or the M list commands.

L(ist) L [CR] lists the 10 latest messages.
M(ine) M [CR] lists the 10 latest messages to/from your callsign.

List taken at September 9 at 03:20 UTC  by IK1SLD

Msg # Stat  Date     Time  To     From   @ BBS  Subject
 1918 P     02/09/09 03:18 RS0ISS IK1SLD        Veronica
 1917 P     02/09/09 03:12 VK4AKM ON4CKT        TNX for mail
 1916 P     02/09/09 03:12 RS0ISS ON4CKT        TNX For answer
 1915 P     02/09/09 02:55 PY4KS  PY4GWT        RE: Negativo
 1914 P     02/09/09 02:49 LU9EE  LU9ED         HOLA MEN
 1913 P     02/09/09 01:44 RS0ISS RX6HF         Beacon ARISS
 1912 B     02/09/09 01:41 ALL    IW0QPV        saluti
 1911 P     02/09/09 01:38 RS0ISS IW0QPV        qso/qsl
 1910 P     02/09/08 22:41 F5ASD  RS0ISS        HELLO

[note message 1909]
 1909 P     02/09/08 22:34 WF1F   RS0ISS        QUESTION

 1908 P     02/09/08 22:27 JO2OXL RS0ISS        HELLO
 1905 P     02/09/08 22:03 PE2JMR RS0ISS        THANKS
 1904 P     02/09/08 21:46 VK4AKM RS0ISS        HELLO KEN
 1903 PR    02/09/08 18:40 RS0ISS LU7EW         QSL
 1901 P     02/09/08 15:33 PY4GWT PY4KS         Negativo
 1900 BR    02/09/08 11:48 ALL    N6CO          2 Line ISS Keps 9-8
 1893 P     02/09/08 00:02 XE2ARF RS0ISS        HELLO
55744 Bytes free
Next message Number 1919
Mailbox selected: 3

I then connected to the PMS from my house.  I was not able to view the
message 1909 or any other valid messages.  I tried both the L and the M
commands to view my messages stored in the PMS.


c rs0iss
WF1F>RS0ISS [09/09/02 07:01:21]: <<C>>:

Logged on to RS0ISS's Personal Message System on board the International
Space Station

[ I should have see the beacon message "You have mail waiting.".  I
should also have see the listing for message number 1909 P  02/09/08

M  [this is the list my mail command]
Msg # Stat  Date     Time  To     From   @ BBS  Subject

Message not found


L [this is the list last 10 messages command ]

Msg # Stat  Date     Time  To     From   @ BBS  Subject

   33 P     30/20/79 61:4D 7, 200 1m99i>  m99MR í9?>@í9>>

[ Only message number 33 was listed.  This message appears to be an old
corrupted messages.  You should also note, that over 70% of the memory
has been used up. ]

15368 Bytes free

Next message Number 1926

Mailbox selected: 3
[The mailbox refers to which mailbox is being used.  We only use mailbox
#3, which is correctly being displayed]

The problem with the PMS cleared up by its self by the next orbit 90
minutes later.  I was able to read the message and perform all normal
PMS functions.  And the Bytes Free counter returned to a normal setting.

c rs0iss
WF1F>RS0ISS [09/09/02 08:37:39]: <<C>>:

Logged on to RS0ISS's Personal Message System on board the International
Space Station

You have mail waiting.
Msg # Stat  Date     Time  To     From   @ BBS  Subject
 1909 P     02/09/08 22:34 WF1F   RS0ISS        QUESTION

55129 Bytes free

If you do encounter this problem please try to avoid uploading any
messages to the PMS while it is having the Listing bug.  Just simply log
out and try again on the next orbit.  

ISS Visible:
The ISS will be visible this week over North America in the evening.
There is also a shuttle launched planed for October 7 (heater repairs
permitting).  The day after the shuttle launches; it may be possible to
see the shuttle chasing the ISS for a day or so until it docks.  Please
check the NASA links below for schedule changes and visual sighting

MISSION: STS-112 -- 15th ISS Flight (9A) - S1 Truss Segment 
Vehicle      Atlantis/OV-104
Target Launch Date October 7, 2002 at 3:46 p.m. EDT 
Target Landing Date October 18, 2002 at 11:46 a.m. EDT
Mission Duration   11 days
Crew    Ashby, Melroy, Wolf, Sellers, Magnus, Yurchikhin
Orbital Insertion Altitude/Inclination   122 nautical miles/51.6 degrees

If you do not have a tracking program, please check the NASA web pages
for tracking and Visibility data.  There have been several good reports
of very bright reflections from ISS.


Take care all and good luck and please be courteous.

73 Miles WF1F MAREX-NA


Until we meet again


Copyright 2001 Miles Mann, All Rights Reserved.  This document may be
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