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Mir Amateur Radio Status Feb 26, 1998




Mir Amateur Radio Status Feb 26, 1998
by Miles Mann WF1F, Mirex Director of Educational Resources

PMS:
Make sure you read the new commands before operating.
The 2 Meter PMS is back on Line.  The crew on Mir, had some free time from
there very busy
schedules are were able to reconfigure a few of the basic TNC settings.
As I had mentioned earlier, the CD command and a few other commands had
been reset.  The CD
command prevented anyone from accessing the Mail box reliably.  The Mir
crew was able
to make several adjustments and put the PMS back on line last Saturday Feb
14.
The PMS was then put into Sysop Mode to allow the System Operators to
upload the remainder of
the Mir specific TNC settings.
The System Operators have completed most of the changes for this week, and
have put the TNC in
Public Mode.
The System Operators still reserve the right to place the TNC in Sysop mode
for additional short term testing
at any time, without any advanced  notice.

Initial checkout:
Basic check out has been completed and the PMS has been placed in Public
access mode.

New Commands:

The new modem is a Kantronics KPC-9612 Plus, Revision 8.1.  The command set
for this TNC
is different than the previous Mir TNC.  You may want to get a copy of the
Kantronics manual for
your own review.  I have attached a list of the new Help file.  And I will
highlight some of the key changes.

List
the List command will list all messages in the mail box which your are
allowed to read.  This will include all Bulletins, traffic and any private
message address to you or sent by you.
This feature will be a big time saver.  If you type in L and get back
nothing, it means there is noting
in the mail box for YOU to read, No ALL or Bulletins messages.  The old TNC
would dump 10 messages
at a time, even it you were not allowed to read any of the messages.

RM
The Read Mine command has been added.  You now have the option of R #### or
RM to read
all messages address to your call sign.  This feature will also help reduce
your connect time.

S
The Send command has changed a little.  The letter S, defaults to a SP
format, which can
only be ready by the recipient or Sysops.

Options SR and V  are no longer supported.

New Command List

[KPC9612P-8.1-HM$]
82408 BYTES AVAILABLE
THERE ARE 37 MESSAGES NUMBERED 155-259
ENTER COMMAND:  B,J,K,L,R,S, or Help >


LL n          LIST LAST n MESSAGES
LM(ine)       LIST UNREAD MESSAGES ADDRESSED TO YOU
LO [+|-]      LISTING ORDER
LT            LIST TRAFFIC
LTn           DISPLAY LOCATION TEXT n=1-4
K(ill) n      DELETE MESSAGE NUMBER n
KM(ine)       DELETE ALL READ MESSAGES ADDRESSED TO YOU
R(ead) n      DISPLAY MESSAGE NUMBER n
RH n          DISPLAY MESSAGE n WITH HEADERS
RM(ine)       READ ALL MESSAGES ADDRESSED TO YOU
S(end) call   SEND MESSAGE TO callsign
S[B|P|T] call SEND BULLETIN, PRIVATE, or TRAFFIC

KOVAC, YOU HAVE MAIL WATING FROM ANDY

MSG#  ST SIZE  TO     FROM   DATE               SUBJECT
167   PN 168   KOVAC  R0MIR  02/22/98 01:45:16  GREETINGS

OLD command list,  No longer valid
B(ye)     B [CR] disconnects you from PMS.
H(elp)    H [CR] or ? [CR] displays this help file.
J(log)    J [CR] displays a list of callsigns heard (optional date/time)
K(ill)    K n [CR] deletes message number n  (only to/from your callsign).
KM(ine)   KM[CR] deletes all READ messages addressed to your call sign.
L(ist)    L [CR] lists the 10 latest messages.
M(ine)    M [CR] lists the 10 latest messages to/from your callsign.
R(ead)    R n [CR] reads message number n.
S(end)    S (callsign) [CR] begins a message addressed  to (callsign).
          Subject: max 28 characters ending with [CR].
          Text: End each line with [CR]. End message by
           typing /ex [CR]  or  CTRL-Z [CR]
           at the beginning of a new line.
SR(eply)  SR n[CR] Sends a reply to message n prompting only for text.
V(ersion) V [CR] displays the software version of the PMS system.


New Features of the KPC-9612 Plus

1.   Check:
This is a new feature which will help reduce the amount of idle mail box
time.  How many times did u
see the PMS fly by, and no one could log in because the connected station
was out of range?
The old PMS required 7 minutes to time out, when the connected station went
out of range.  The
new PMS has an adjustable timer.  The new system is set for 120 seconds.
After you connect, if your
station is idle for more than 120 seconds, the TNC will begin disconnect
from your station.

The initial testing of the feature had the following results:
Station xyx went out of range at 12:01:00
Two minutes later the Check Timer expired:    12:03:00
TNC began sending 10 ACK requests, which required a total time of 50
seconds:  12:03:50
TNT Retry Count Expired and began sending 10 D - Disconnect Frames to XYY
this also required approximately 50 seconds total:      12:04:40
PMS opened for next available customer at : 12:04:45
Total time to Time out, approximate 4:45.  This value is still much shorter
than we had with the previous
TNC, but it still needs to be improved.
Mir is traveling at 291 miles per minute and has traveled almost 1500 miles
during this time out period.
The System Operators will be adjusting this value to try to improve its
performance.  If we cut the times
and counts too short, it may have negative effects on stations uploading
message traffic.



2.   Remote SysOp access
This is a big time saving feature.  Before, if we needed to get any
parameter changed, it always required the
intervention of the Mir crew.  To schedule crew time, required expensive
phone calls and faxes to Moscow. The crew time is very precious, and the
Amateur Radio station should not be intrusive into their schedules.
This feature is already being used to fine tune the TNC settings.

3.   More memory
The old modem had 13k of memory for Mail storage.  The new modem has 100k
of memory just for Mails messages.

4.   Dual speed support.
This modem supports both 9600 and 1200 baud data rates.  The 1200 baud rate
will be the primary rate.
The 9600 speed will be reserved for special testing at a later date.
Mirex believes that the Mir Station is the best place for beginners around
the world to experiment.  Mir is
the most popular Amateur Radio Satellite in the world.  The reason for it
success is because Mir is so easy
to use.  2-meter FM Mono Band 1200 baud packet is very easy to use and
inexpensive to implement.
When we do start testing 9600 baud, it will be only for short published
duration?s.  We will always bring
the system back to 1200 baud FM Mono Band for the rest of the world.

5.   Software Adjustable Audio Levels.
With the new Kantronics KPC-9612 Plus, we have the ability to remotely
adjust Packet Audio levels
in the TNC.  Here is where you can help.  If you have a service monitor and
are able to monitor the Mir Packet.
I would be interested in hearing from professionals who can analyze the
packet signal coming from Mir.
The  goal is to fine tune the Packet down link audio level to the best
level.
The system was tuned in the lab, however, the radio on Mir may be slightly
different than the Kenwood TM-733 used during the setup.

Limitations:
It is still a Single User Mail box.  Only one (1) station can connect to
the PMS mail box at a time.
The call sign R0MIR goes to the Keyboard port which is not used.  Think of
the keyboard port
as a big bit bucket in the sky.
The call sign R0MIR-1 goes into the Single user mail box.  All stations
must wait until the station
connected to the mail box logs off.


Mirex would like the stations monitoring the PMS to please be patient while
we make adjustments.

Mir Crew Members:
The current crew consists of:

Mir 25 (New arrivals)
Talgat Musabayev RO3FT
Nikolai Budarin  RV3DB and R4MIR.
Frenchman Leopold Eyharts (depart feb 19 )

Shuttle schedule:
The next shuttle docking Mission is currently scheduled for May 28, 1998

Check out the Proposed SSTV project.
Please check out the Mirex web pages for pending and proposed Mirex
projects.

MIREX has created an Internet Web page containing information regarding Mir
and the various Amateur Radio experiments proposed for the space station.
The pages are still "under construction", but some good information can be
gathered from what has been put together so far.  URLs include the
following:

     http://www.ik1sld.org/mirex.htm  OR
     http://www.ik1sld.org/mirex

     http://www.geocities.com/~ik1sld/mirex.htm  OR
     http://www.geocities.com/~ik1sld/mirex

Some stations have had problems using the some of the URL aliases, if so,
try the long
version of the home page address

     http://www.geocities.com/CapeCanaveral/Lab/3431/mirex.htm


     Mir
     1 16609U 86017A   98056.17787068  .00008609  00000-0  10114-3 0  2802
     2 16609  51.6577 252.8419 0005295  59.3031 300.8434 15.62357706686530
     Kvant-1
     1 17845U 87030A   98054.83463552  .00001710  00000-0  24905-4 0  3116
     2 17845  51.6569 259.6185 0005308  53.3036 306.8520 15.62326085620438
     Kvant-2
     1 20335U 89093A   98054.83463552  .00001710  00000-0  24905-4 0  1630
     2 20335  51.6569 259.6185 0005308  53.3036 306.8520 15.62326085469448
     Kristall
     1 20635U 90048A   98054.83463552  .00001710  00000-0  24905-4 0  9554
     2 20635  51.6569 259.6185 0005308  53.3036 306.8520 15.62326085440271
     Spektr
     1 23579U 95024A   98054.83463552  .00001710  00000-0  24905-4 0  9182
     2 23579  51.6569 259.6185 0005308  53.3036 306.8520 15.62326085157759
     Priroda
     1 23848U 96023A   98054.83463552  .00001710  00000-0  24905-4 0  6043
     2 23848  51.6569 259.6185 0005308  53.3036 306.8520 15.62326085104840
     Soyuz TM-26
     1 24886U 97038A   98050.03721664  .00018442  00000-0  21056-3 0  1916
     2 24886  51.6570 283.8186 0005257  33.9303 326.2802 15.62242286 30846
     Progress M-37
     1 25102U 97081A   98054.83385598 -.00011972  00000-0 -12696-3 0   709
     2 25102  51.6570 259.6255 0005632  51.6018 304.1602 15.62313363 10243
     Soyuz TM-27
     1 25146U 98004A   98054.83463552  .00001710  00000-0  24905-4 0   322
     2 25146  51.6569 259.6185 0005308  53.3036 306.8520 15.62326085  3942



Miles WF1F






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