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Dove ou DO-17, (pomba em inglês, referência a pomba da paz) foi o primeiro satélite amador brasileiro, colocado em órbita em 1990, sua recepção era fácil e interessante pois além da telemetria em Packet também enviava uma mensagem de voz digitalizada. DOVE foi patrocinado pela AMSAT-Brasil e pelo Dr. Júnior Torres De Castro, PY2BJO. A principal missão do DOVE era de fornecer um sinal fácil para recepção, que poderia ser escutado de um simples HT VHF para fins didáticos. A telemetria em AFSK, formato de transmissão de pacotes AX.25 exigia um simples TNC comum para decodificar, facilitando assim a qualquer pessoa receber a sua telemetria.
O BRAMSAT-OSCAR-17 ou Dove foi enviado para o espaço em 20/01/1990 por um foguete Ariane 4 lançado da base de Kourou na Guiana Francesa. Ele circulava ao redor da Terra em uma órbita síncrona de 100 minutos, com uma inclinação de 98 °. Sua potência de transmissão era muito elevada, com cerca de 4 watts. Ele não possuía sensores científicos, ele só media os valores dos sistemas de bordo (WOD).
Ele tinha uma característica única, uma saída de transmissão de voz digitalizada, bem como gravações de voz digitalizadas da terra, que podem ser carregada no computador de bordo. Pela primeira vez foi utilizada a técnica dos componentes montados na superfície (SMD). As frequências de Downlink eram de 145.825 MHz para telemetria a 1K2 AX.25 em FM, 145.825 MHz voz digitalizada em FM e Banda S 2401.220 bps MHz BPSK.
Ficha Técnica do Satélite DOVE
Name: DOVE-OSCAR 17 aka DOVE
NASA Catalog Number: 20440
Launched: January 22, 1990
Launch vehicle: Ariane 4
Launch location: Kourou, French Guiana
Weight: 12.92 kg.
Orbit: Sun-Synchronous near-Polar LEO (Low Earth Orbit)
Inclination: 98 degrees
Size: 226 x 226 x 223 mm
Period: 100.8 Minutes
Features:
- DOVE – Digital Orbiting Voice Encoder
- Sponsored by AMSAT-Brazil
- Whole Orbit Data (WOD) Collection
Downlink:
- 145.825 MHz FM
- 2401.221 MHz (Note: 2401 MHz downlink is faulty)
Status: Non-operational
- DOVE stopped transmitting in March 1998. The satellite has not responded to ground station control.
- The latest information is available from: AMSAT News Service (ANS)
Segundo a AMSAT o satélite DOVE parou de funcionar em março de 1998, se ele estivesse em operação, estaria nesse momento aqui !
Telemetria do DOVE DO-17
Aqui está um exemplo interessante de telemetria recebidas, Exemplo real. Você pode ver as mensagens da Equipe de Comando com o anúncio de que o transmissor S-Band foi reativado. via
SWITCH-0>SWITCH-0 DM SWITCH-0>SWITCH-0 DM DOVE-1>BCRXMT-0 UI: PID=F0 vmax=758275 battop=766771 temp=397363 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM SWITCH-0>SWITCH-0 DM DOVE-1>TIME-1 UI: PID=F0 PHT: uptime is 520/13:20:45. Time is Mon Nov 13 03:27:14 1995 SWITCH-0>SWITCH-0 DM DOVE-1>BRAMST-0 UI: PID=F0 10/29/95 Software load complete. S-band is on and should stay on. Accurate measurements of it's frequency (2401.220 MHz) appreciated to [email protected] DOVE Command Team (WD0E) DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>TIME-1 UI: PID=F0 PHT: uptime is 520/13:21:15. Time is Mon Nov 13 03:27:44 1995 SWITCH-0>SWITCH-0 DM SWITCH-0>SWITCH-0 DM DOVE-1>TIME-1 UI: PID=F0 PHT: uptime is 520/13:21:45. Time is Mon Nov 13 03:28:14 1995 DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>BRAMST-0 UI: PID=F0 10/29/95 Software load complete. S-band is on and should stay on. Accurate measurements of it's frequency (2401.220 MHz) appreciated to [email protected] DOVE Command Team (WD0E) DOVE-1>BCRXMT-0 UI: PID=F0 vmax=759160 battop=766771 temp=357713 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>TIME-1 UI: PID=F0 PHT: uptime is 520/13:22:15. Time is Mon Nov 13 03:28:44 1995 SWITCH-0>SWITCH-0 DM DOVE-1>TLM-0 UI: PID=F0 00:57 01:57 02:84 03:32 04:57 05:57 06:6C 07:56 08:6C 09:74 0A:A0 0B:E4 0C:E8 0D:D6 0E:00 0F:24 10:CC 11:9B 12:00 13:02 14:A6 15:90 16:96 17:94 18:95 19:95 1A:9E 1B:93 1C:9A 1D:97 1E:22 1F:5C 20:95 DOVE-1>TLM-0 UI: PID=F0 21:8A 22:18 23:18 24:13 25:3C 26:00 27:00 28:00 29:00 2A:00 2B:00 2C:00 2D:2F 2E:00 2F:9E 30:CC 31:9E 32:00 33:00 34:C2 35:A6 36:AB 37:A9 38:B0 SWITCH-0>SWITCH-0 DM DOVE-1>TIME-1 UI: PID=F0 PHT: uptime is 520/13:22:45. Time is Mon Nov 13 03:29:14 1995 SWITCH-0>SWITCH-0 DM DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>BRAMST-0 UI: PID=F0 10/29/95 Software load complete. S-band is on and should stay on. Accurate measurements of it's frequency (2401.220 MHz) appreciated to [email protected] DOVE Command Team (WD0E) DOVE-1>BCRXMT-0 UI: PID=F0 vmax=758275 battop=766771 temp=397363 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>TLM-0 UI: PID=F0 00:57 01:58 02:84 03:32 04:56 05:56 06:6C 07:56 08:6B 09:72 0A:A1 0B:E4 0C:E8 0D:D6 0E:00 0F:26 10:CC 11:9A 12:00 13:02 14:A7 15:92 16:99 17:94 18:96 19:95 1A:9D 1B:93 1C:9A 1D:96 1E:22 1F:5C 20:93 DOVE-1>TIME-1 UI: PID=F0 PHT: uptime is 520/13:24:15. Time is Mon Nov 13 03:30:44 1995 SWITCH-0>SWITCH-0 DM DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>TIME-1 UI: PID=F0 PHT: uptime is 520/13:25:15. Time is Mon Nov 13 03:31:44 1995 SWITCH-0>SWITCH-0 DM DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>TIME-1 UI: PID=F0 PHT: uptime is 520/13:25:45. Time is Mon Nov 13 03:32:14 1995 SWITCH-0>SWITCH-0 DM DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 SWITCH-0>SWITCH-0 DM DOVE-1>TLM-0 UI: PID=F0 00:5B 01:58 02:86 03:34 04:56 05:57 06:70 07:54 08:6B 09:70 0A:9F 0B:E5 0C:E8 0D:D6 0E:00 0F:25 10:CA 11:9B 12:00 13:01 14:AC 15:96 16:9B 17:96 18:98 19:97 1A:9E 1B:93 1C:9D 1D:9A 1E:22 1F:5B 20:97 DOVE-1>TLM-0 UI: PID=F0 21:86 22:1A 23:19 24:12 25:3B 26:00 27:00 28:00 29:00 2A:00 2B:00 2C:01 2D:30 2E:00 2F:9F 30:CD 31:9E 32:00 33:00 34:C5 35:A8 36:B0 37:AC 38:B6 DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>BRAMST-0 UI: PID=F0 10/29/95 Software load complete. S-band is on and should stay on. Accurate measurements of it's frequency (2401.220 MHz) appreciated to [email protected] DOVE Command Team (WD0E) DOVE-1>BCRXMT-0 UI: PID=F0 vmax=760045 battop=766771 temp=318063 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 DOVE-1>TLM-0 UI: PID=F0 00:5C 01:57 02:86 03:34 04:57 05:58 06:6C 07:54 08:6C 09:71 0A:A0 0B:E6 0C:E7 0D:D6 0E:00 0F:25 10:CA 11:9A 12:00 13:02 14:B0 15:96 16:9B 17:96 18:98 19:98 1A:A0 1B:93 1C:9D 1D:9A 1E:22 1F:5C 20:94 DOVE-1>TLM-0 UI: PID=F0 21:7F 22:19 23:18 24:14 25:39 26:00 27:00 28:00 29:00 2A:00 2B:01 2C:00 2D:30 2E:00 2F:9E 30:CC 31:9F 32:00 33:00 34:C6 35:A7 36:AD 37:AC 38:B7 DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>TLM-0 UI: PID=F0 21:83 22:1A 23:1A 24:14 25:38 26:00 27:01 28:00 29:00 2A:00 2B:00 2C:00 2D:30 2E:00 2F:9F 30:D0 31:9F 32:00 33:00 34:C7 35:A8 36:B0 37:AC 38:B8 DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>BRAMST-0 UI: PID=F0 10/29/95 Software load complete. S-band is on and should stay on. Accurate measurements of it's frequency (2401.220 MHz) appreciated to [email protected] DOVE Command Team (WD0E) DOVE-1>BCRXMT-0 UI: PID=F0 vmax=760045 battop=766771 temp=318063 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>TLM-0 UI: PID=F0 00:58 01:57 02:86 03:34 04:58 05:57 06:6C 07:54 08:6C 09:70 0A:A0 0B:E4 0C:E7 0D:D6 0E:00 0F:24 10:CA 11:9A 12:01 13:01 14:B0 15:97 16:9D 17:98 18:99 19:99 1A:A1 1B:96 1C:9E 1D:9B 1E:22 1F:5C 20:9A DOVE-1>TLM-0 UI: PID=F0 21:84 22:19 23:1A 24:14 25:39 26:00 27:00 28:00 29:00 2A:00 2B:00 2C:00 2D:30 2E:01 2F:9E 30:CC 31:9F 32:00 33:00 34:C7 35:A8 36:B0 37:AC 38:B8 DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>LSTAT-0 UI: PID=F0 I P:0x3103 o:0 l:3153 f:6780, d:0 st:0 SWITCH-0>SWITCH-0 DM DOVE-1>TLM-0 UI: PID=F0 21:7E 22:19 23:1A 24:13 25:3A 26:00 27:00 28:00 29:00 2A:00 2B:00 2C:00 2D:2F 2E:00 2F:9E 30:D0 31:9F 32:00 33:00 34:C7 35:A8 36:B0 37:AC 38:B9 DOVE-1>STATUS-0 UI: PID=F0 80 00 00 1E F9 18 99 02 00 10 00 00 09 0E 3C 05 0F 31 01 0B 00 DOVE-1>BRAMST-0 UI: PID=F0 10/29/95 Software load complete. S-band is on and should stay on. Accurate measurements of it's frequency (2401.220 MHz) appreciated to [email protected] DOVE Command Team (WD0E) DOVE-1>BCRXMT-0 UI: PID=F0 vmax=759160 battop=766771 temp=357713 SWITCH-0>SWITCH-0 DM SWITCH-0>SWITCH-0 DM SWITCH-0>SWITCH-0 DM ----------------------------------------------------------------------------- -RX Audio- -RF OUT Watts- -Amps- 00 W V(p-p) E/F 32 TX FM1 0B +5V RX 01 N V(p-p) E/F 33 TX FM2 0F LO Monitor I 04 W V(p-p) A 3A TX SBAND 11 GASFET BIAS I 05 N V(p-p) A 23 BCR Load 06 DISC kHz A -Volts- 24 +8.5 V Bus 07 SMeter A 02 Mixer Bias 25 +5V Bus 08 DISC kHz E/F 03 Osc. Bias 2C Ext Power 09 SMeter E/F 0A +5V Bus 2D BCR Input -Temperatures Degr C- 0C +2.5V VREF 2E BCR Output 14 RX 0D +8.5V BUS -Battery Volts 15 +X Array RX 10 +10V Bus 16 1 1A 5 2F Bat 1 12 Ground REF 17 2 1B 6 30 Bat 2 13 +Z Array 18 3 1C 7 31 Baseplt 1E Array 19 4 1D 8 34 PSK TX HPA 1F +5V Bus 35 +Y Array 20 +8.5V Bus 26 -X 27 +X 36 RC PSK HPA 21 +10V Bus 28 -Y 29 +Y 37 RC PSK BP -Counts- 2A -Z 2B +Z 38 +Z Array 0E IR Detector 39 S Band HPA 22 BCR SetPoint F1-HELP F3-SCAN F5-PRINT F7-GRAPH F9-DELETE PgUp-Prev PgDn-Next ESC-QUIT -----------------------------------------------------------------------------
Exemplo do Beacon de 1998/01/23 21:49 UTC:
fm SWITCH to SWITCH ctl DM [DAMA] fm DOVE-1 to BRAMST ctl UI pid F0 [DAMA] 1/6/98 QSLs are available. Send self addressed stamped envelope, or envelope and IRC to: Dianne White, N0IZO 45777 Rampart Rd. Parker, CO 80138-4316 U.S.A 2M power = 1W 2401.220 Mhz power = .8W (WD0E)
Telemetria pura via
Kanal Parameter C B A Einheit
-------------------------------------------------------------------
0 Rx E/F Audio(W)+0.000 +0.0246 0.000 V(p-p)
1 Rx E/F Audio(N)+0.000 +0.0246 0.000 V(p-p)
2 Mixer Bias V: +0.000 +0.0102 0.000 Volts
3 Osc. Bias V: +0.000 +0.0102 0.000 Volts
4 Rx A Audio (W):+0.000 +0.0246 0.000 V(p-p)
5 Rx A Audio (N):+0.000 +0.0246 0.000 V(p-p)
6 Rx A DISC: +10.427 -0.09274 0.000 kHz
7 Rx A S meter: +0.000 +1.000 0.000 Counts
8 Rx E/F DISC: +9.6234 -0.09911 0.000 kHz
9 Rx E/F S meter:+0.000 +1.000 0.000 Counts
A +5 Volt Bus: +0.000 +0.0305 0.000 Volts
B +5V Rx Current:+0.000 +0.000100 0.000 Amps
C +2.5V VREF: +0.000 +0.0108 0.000 Volts
D 8.5V BUS: +0.000 +0.0391 0.000 Volts
E IR Detector: +0.000 +1.000 0.000 Counts
F LO Monitor I: +0.000 +0.000037 0.000 Amps
10 +10V Bus: +0.000 +0.05075 0.000 Volts
11 GASFET Bias I: +0.000 +0.000026 0.000 Amps
12 Ground REF: +0.000 +0.0100 0.000 Volts
13 +Z Array V: +0.000 +0.1023 0.000 Volts
14 Rx Temp: +101.05 -0.6051 0.000 Deg. C
15 +X (RX) temp: +101.05 -0.6051 0.000 Deg. C
16 Bat 1 V: +1.7932 -0.0034084 0.000 Volts
17 Bat 2 V: +1.7978 -0.0035316 0.000 Volts
18 Bat 3 V: +1.8046 -0.0035723 0.000 Volts
19 Bat 4 V: +1.7782 -0.0034590 0.000 Volts
1A Bat 5 V: +1.8410 -0.0038355 0.000 Volts
1B Bat 6 V: +1.8381 -0.0038450 0.000 Volts
1C Bat 7 V: +1.8568 -0.0037757 0.000 Volts
1D Bat 8 V: +1.7868 -0.0034068 0.000 Volts
1E Array V: +7.205 +0.07200 0.000 Volts
1F +5V Bus: +1.932 +0.0312 0.000 Volts
20 +8.5V Bus: +5.265 +0.0173 0.000 Volts
21 +10V Bus: +7.469 +0.021765 0.000 Volts
22 BCR Set Point: -8.762 +1.1590 0.000 Counts
23 BCR Load Cur: -0.0871 +0.00698 0.000 Amps
24 +8.5V Bus Cur: -0.00920 +0.001899 0.000 Amps
25 +5V Bus Cur: +0.00502 +0.00431 0.000 Amps
26 -X Array Cur: -0.01075 +0.00215 0.000 Amps
27 +X Array Cur: -0.01349 +0.00270 0.000 Amps
28 -Y Array Cur: -0.01196 +0.00239 0.000 Amps
29 +Y Array Cur: -0.01141 +0.00228 0.000 Amps
2A -Z Array Cur: -0.01653 +0.00245 0.000 Amps
2B +Z Array Cur: -0.01137 +0.00228 0.000 Amps
2C Ext Power Cur: -0.02000 +0.00250 0.000 Amps
2D BCR Input Cur: +0.06122 +0.00317 0.000 Amps
2E BCR Output Cur:-0.01724 +0.00345 0.000 Amps
2F Bat 1 Temp: +101.05 -0.6051 0.000 Deg. C
30 Bat 2 Temp: +101.05 -0.6051 0.000 Deg. C
31 Baseplt Temp: +101.05 -0.6051 0.000 Deg. C
32 FM TX#1 RF OUT:+0.0256 -0.000884 +0.0000836 Watts
33 FM TX#2 RF OUT:-0.0027 +0.001257 +0.0000730 Watts
34 PSK TX HPA Temp+101.05 -0.6051 0.000 Deg. C
35 +Y Array Temp: +101.05 -0.6051 0.000 Deg. C
36 RC PSK HPA Temp+101.05 -0.6051 0.000 Deg. C
37 RC PSK BP Temp:+101.05 -0.6051 0.000 Deg. C
38 +Z Array Temp: +101.05 -0.6051 0.000 Deg. C
39 S band TX Out: -0.0451 +0.00403 0.000 Watts
3A S band HPA Temp+101.05 -0.6051 0.000 Deg. C
