Informations radioamateurs
Beacon measurements
OUFTI-1 TLE available here (2016-025E).
Telemetries:
In visibility of Liège (Belgium), OUFTI-1 will transmit telemetries in AX.25 FSK (9600 bauds) at 145.950 MHz.
First flight over Liège scheduled between 06:05 and 06:12 AM
D-STAR transponder:
When D-STAR repeater will be active, the frequencies are 435.045 MHz for uplink and 145.950 MHz for downlink. More information will be available soon.
Morse beacon:
The beacon of OUFTI-1 transmits continuously 100mW at 145,980MHz, during 2 minutes every 3 minutes (2 min ON – 1 min OFF).
The beacon decoder software is available :
For any trouble using the software: eb.ca1498343777.glu@14983437771-itf1498343777uo1498343777
If you want to decode the frame yourself, here is all you need:
Frame :
HI HI DE OUFTI1 X YY AA BB CC DD EE FF GG HH II JJ KK LL ZZ
| X = µC speaking | a or b |
| YY = Mode | 00=Silence; 05=Default; 10=Safe; 15= D-STAR |
| AA = I_SOL | Val*1000/(0,01*200) |
| BB = V_3.3 | Val*(249+120)/249 |
| CC = V_BUS | Val*(249+210)/249 |
| DD = I_3.3 | Val*1000/(0,007*200) |
| EE = G_BAT1 | Val*(249+180)/249 |
| FF = V_RX | Val*(249+120)/249 |
| GG = T_PA | Val-0,5)*100 |
| HH = T_OBC | Val-0,5)*100 |
| II = G_BAT2 | Val*(249+180)/249 |
| JJ = I_RX | Val*1000/(0,039*200); |
| KK = I_PA | Val*1000/(0,006*200) |
| LL = T_BAT | Val-0,5)*100 |
| ZZ = checksum | Modulo 256 of the addition of ascii number from X (µc) to LL (T_BAT) |
The values are coded according to the following table :
| Data | Value | Data | Value | Data | Value | Data | Value |
| tt | 0 | ut | 0,63492063 | 4t | 1,26984127 | 6t | 1,9047619 |
| ta | 0,03968254 | ua | 0,67460317 | 4a | 1,30952381 | 6a | 1,94444444 |
| tu | 0,07936508 | uu | 0,71428571 | 4u | 1,34920635 | 6u | 1,98412698 |
| tv | 0,11904762 | uv | 0,75396825 | 4v | 1,38888889 | 6v | 2,02380952 |
| t4 | 0,15873016 | u4 | 0,79365079 | 44 | 1,42857143 | 64 | 2,06349206 |
| te | 0,1984127 | ue | 0,83333333 | 4e | 1,46825397 | 6e | 2,1031746 |
| t6 | 0,23809524 | u6 | 0,87301587 | 46 | 1,50793651 | 66 | 2,14285714 |
| tb | 0,27777778 | ub | 0,91269841 | 4b | 1,54761905 | 6b | 2,18253968 |
| at | 0,31746032 | vt | 0,95238095 | et | 1,58730159 | bt | 2,22222222 |
| aa | 0,35714286 | va | 0,99206349 | ea | 1,62698413 | ba | 2,26190476 |
| au | 0,3968254 | vu | 1,03174603 | eu | 1,66666667 | bu | 2,3015873 |
| av | 0,43650794 | vv | 1,07142857 | ev | 1,70634921 | bv | 2,34126984 |
| a4 | 0,47619048 | v4 | 1,11111111 | e4 | 1,74603175 | b4 | 2,38095238 |
| ae | 0,51587302 | ve | 1,15079365 | ee | 1,78571429 | be | 2,42063492 |
| a6 | 0,55555556 | v6 | 1,19047619 | e6 | 1,82539683 | b6 | 2,46031746 |
| ab | 0,5952381 | vb | 1,23015873 | eb | 1,86507937 | bb | 2,5 |
Exemple:
hi hi de oufti1 a 05 e4 ba 6e tv tt ba uv uv tt ab tt uv a6
| Value | Result | ||
| X = µC speaking | a | a ou b | a |
| YY = Mode | 05 | 00=Silence; 05=Default; 10=Safe; 15= D-STAR | Default |
| AA = I_SOL | e4 = 1,74 | Val*1000/(0,01*200) | 873,02 mA |
| BB = V_3.3 | ba = 2,26 | Val*(249+120)/249 | 3,35 V |
| CC = V_BUS | 6e = 2,10 | Val*(249+210)/249 | 3,88 V |
| DD = I_3.3 | tv = 0,12 | Val*1000/(0,007*200) | 85,03 mA |
| EE = G_BAT1 | tt = 0 | Val*(249+180)/249 | 0 V |
| FF = V_RX | ba = 2,26 | Val*(249+120)/249 | 3,35 V |
| GG = T_PA | uv = 0,75 | Val-0,5)*100 | 25,4 °C |
| HH = T_OBC | uv = 0,75 | Val-0,5)*100 | 25,4 °C |
| II = G_BAT2 | tt = 0 | Val*(249+180)/249 | 0 V |
| JJ = I_RX | ab = 0,60 | Val*1000/(0,039*200); | 76,31 mA |
| KK = I_PA | tt = 0 | Val*1000/(0,006*200) | 0 mA |
| LL = T_BAT | uv = 0,75 | Val-0,5)*100 | 25,4 °C |
| ZZ = checksum | a6 = 166 hex to dec | Rest of the division by 256 of the addition of ascii number from X (µc) to LL (T_BAT) | = (97 + 48 + 53 + 101 + 52 + 98 + 97 + 54 + 101 + 116 + 118 + 116 + 116 + 98 + 97 + 117 + 118 + 117 + 118 + 116 + 116 + 97 + 98 + 116 + 116 + 117 + 118) % 256 = 2726 % 256 = 166 (decimal) = a6 (hexa) |
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Afrikaans Albanian Arabic Armenian Azerbaijani Basque Belarusian Bengali Bosnian Bulgarian Catalan Cebuano Chichewa Chinese (Simplified) Chinese (Traditional) Croatian Czech Danish Dutch English Esperanto Estonian Filipino Finnish French Galician Georgian German Greek Gujarati Haitian Creole Hausa Hebrew Hindi Hmong Hungarian Icelandic Igbo Indonesian Irish Italian Japanese Javanese Kannada Kazakh Khmer Korean Lao Latin Latvian Lithuanian Macedonian Malagasy Malay Malayalam Maltese Maori Marathi Mongolian Myanmar (Burmese) Nepali Norwegian Persian Polish Portuguese Punjabi Romanian Russian Serbian Sesotho Sinhala Slovak Slovenian Somali Spanish Sundanese Swahili Swedish Tajik Tamil Telugu Thai Turkish Ukrainian Urdu Uzbek Vietnamese Welsh Yiddish Yoruba Zulu |
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