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

[separator style_type= »none » top_margin= »10″ bottom_margin= »10″ sep_color= » » border_size= » » icon= » » icon_circle= » » icon_circle_color= » » width= » » alignment= »center » class= » » id= » »]

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 : [button link= »http://www.ulg.ac.be/cms/c_7360449/fr/oufti-1-bcn-decoder » color= »default » size= » » stretch= » » type= » » shape= » » target= »_blank » title= » » gradient_colors= »| » gradient_hover_colors= »| » accent_color= » » accent_hover_color= » » bevel_color= » » border_width= »1px » icon= »fa-download » icon_divider= »yes » icon_position= »left » modal= » » animation_type= »0″ animation_direction= »down » animation_speed= »0.1″ animation_offset= » » alignment= »left » class= » » id= » »]Beacon decoder software[/button]

For any trouble using the software: oufti-1@ulg.ac.be

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	Val1000/(0,01200)
BB = V_3.3	Val*(249+120)/249
CC = V_BUS	Val*(249+210)/249
DD = I_3.3	Val1000/(0,007200)
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	Val1000/(0,039200);
KK = I_PA	Val1000/(0,006200)
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	Val1000/(0,01200)	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	Val1000/(0,007200)	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	Val1000/(0,039200);	76,31 mA
KK = I_PA	tt = 0	Val1000/(0,006200)	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)

Detect language
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

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

Text-to-speech function is limited to 100 characters

Options : History : Help : Feedback Close