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1993-04-11
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T E L E M
version 1.4e
ARSENE satellite telemetry decoding package
by Frederic Rible fc1oat @ f6abj.frpa.fra.eu
(documentation for version 1.4e by Bernard Pidoux, f6bvp)
This software is distributed free of charge by:
ATEPRA
Association Technique pour l'Experimentation du Packet RadioAmateur
23, rue de Provins
F-77520 Mons-en-Montois
France.
If you want to support ARSENE project you can send your donation to ATEPRA
or RACE association.
ARSENE is a mini satellite built by french RACE radio amateur organization.
Its mass is 158 Kg and its orbit 20 000 - 36 000 Km with zero degrees
inclination. The output power is 15 Watts on VHF.
It has three AX25 standard 1200 bauds AFSK FM packet transponders with three
uplink frequencies on 435.050-435.100-435.150 Mhz.
The frequency of the downlink and of the AX25 beacon is 145.975 Mhz.
This beacon will send telemetry giving the status of radio modules
and electrical equipments aboard the satellite.
Hardware requirements for copying the telemetry in real time:
A VHF FM receiver, a standard packet Terminal Node Controler with no special
modem (i.e. bell 202 standard) a PC with serial port connected to the TNC
using 8 wires ( wires 2 to 8 plus wire 20). Signal strengh should make
ARSENE easy to copy with a 145 MHz yagi antenna with 13 dB gain. Although
signal is transmitted with vertical linear polarisation, a circular
polarisation receiving antenna could be better.
This real time telemetry decoding program will run with any color graphic
adaptator. The monitor can be black and white but, of course, full colors
effects will not be performed unless a CGA, EGA or VGA monitor is used.
A- Distributed file catalog
===========================
SIMU.BAT Batch for ARSENE reception simulation (no TNC required)
TELEM.EXE The telemetry decoding program
TELEM.CFG Configuration file with telemetry channels equations
TELEM.COL Color configuration file
TELEMCOL.COL Color configuration file
TELEMB&W.COL Black and white color configuration file
CONFIG.TNC TNC configuration file
ESS.COM Interrupt driven Serial I/O driver version 1.11
written by Gerard FC1EBN (also author of TPK);
Its performance are such that you can run at up to 19,2 Kbd.
TELEMENG.DOC This file
B- Installation
===============
First, protect your original floppy and make a backup copy.
TELEM.EXE will run with a TNC-2 Prom 1.1.5 or higher version or compatible.
The configuration file CONFIG.TNC was programmed for a TNC-2 connected to
serial port COM1 with a 9600 bauds speed, 8 bits, no parity. In order to
modify COM number, speed or format, you only need to change the first three
lines in CONFIG.TNC file. The third line that represents the format is coded
like the following:
XYZ with : X = N no parity
X = E parity even
X = O parity odd
Y = 8 8 bits data
Y = 7 7 bits data
Z = 1 1 stop bit
Z = 2 2 stop bits
The next three lines in CONFIG.TNC initializes the TNC serial i/o parameters.
AWLEN 8 tells the TNC to run 8 bits serial communication
PAR 0 tells the TNC to run 0 parity serial communication
RESTART make the previous instruction active.
These instructions are for a TNC2. You can modify it for your particular case.
For example they will not work with a TNC-20 that use E71 serial parameters
only.
LCALLS parameter is set for ARSENE-1 callsign. If ARSENE satellite callsign
is changed to FX0ARS-1, change here the corresponding callsign.
You can choose color display or black and white display by copying either
TELEMB&W.COL (for black and white) or TELEMCOL.COL (for color) to TELEM.COL
file.
Before running TELEM.EXE program, you must install the serial driver ESS.COM.
For example, if your TNC is connected to port COM 1, you type ESS 1 or include
a line with "ESS 1" (without quotes) in the AUTOEXEC.BAT
TELEM.EXE program must be run from the same directory where the files
TELEM.COL, CONFIG.TNC and TELEM.CFG are. When TELEM is run without argument
it looks for a TNC connected to the serial port and make the initialization
of the TNC.
C- Usage
==========
To run TELEM.EXE, you only need to enter command "TELEM".
If you would like to simulate satellite telemetry reception you can run
the program in simulation mode, even without connecting it to a TNC. You
should use the batch file SIMU.BAT or type TELEM SIMU at the DOS prompt.
In that case the serial driver ESS is not necessary. Random number are
generated inside the program.
In the present version there are only 5 possible commands when TELEM is
running, using the function keys:
- F1 : To acknowledge a new alarm (there is a beep warning and the values
that triggered the alarm by outpassing the normal values are
blinking).
After pressing the F1 key, the beep is stopped and the figures that
start the alarm stay in red except if the values return to normal.
- F2 : To toggle the display from real values to rough figures send by the
satellite and vice versa.
- F3 : To toggle the display from real time telemetry to archived values.
You can move through the records using Page UP and Page DOWN keys.
- F4 : To toggle the display from analog telemetry to STATUS channels.
You can toggle screens back and forth. A change in any STATUS
channel makes the corresponding item blink. F1 key will stop the
blinking.
- F10 : To quit the program.
D- In case of difficulty
=========================
1/ The program displays "The TNC-2 is not responding" :
Possible causes are :
- there is no TNC connected to the serial port !
- the serial port configuration is not compatible with your TNC:
check carefully the first three lines of CONFIG.TNC file;
- ESS driver is not loaded: load it typing ESS 1
(1 for COM1: depending on the port number you are using)
- the ESS driver is locked (for example after using a communication
program like Procom or Telix) : you should unload it and reload it.
Use the command ESS S and then ESS 1 (for COM1: !).
- the TNC you are using is not compatible with TAPR prom 1.1.5
or higher.
=> change your TNC or modify the CONFIG.TNC file.
For any information about ARSENE satellite please contact:
Radio Amateur Club de l'Espace
5, Place du Mont-Vallier
F-31280 Dremil-Lafage, France.
RACE can also be reached via its INTERNET mailbox:
race@amsat.org
f6bvp Paris, March 25, 1993.
---------------------------END OF DOCUMENTATION --------