Ground station czCube and GES-ELECTRONICS
Automatic command and telemetric station czCube and GES-ELECTRONICS is currently located at Èeský Dub in the Czech Republic (Loc: JO70lp).
Since November 2010 is the station in basic test operation. Operational is the automatic trackiing of selected satellites and receiving telemetry in the 435-438 MHz band (since April 2011 also in the 144-146 MHz band), in the FMN format, 1k2 and 9k6 AFSK. Viz. our packets database and station log (in Czech language only). The station will be gradually upgraded.
Meteorological data: |
Actual data from the station: |
Current aerial equipment:
- 1x cross yagi M2 21 dBi
- 1x homebrew OK1WTX cross yagi 13 dBi
- 1x VHF cross yagi Tonna 20818 13 dBi
- 1x rotator Create AER-5
Current devices:
- 1x TRX 435-438 MHz, -120dBm, 7W
- 1x FT-817
The station is equipped with backup power supply and measurement of basic meteorological variables. The station is connected to the Internet and allows remote access and control.
Station history:
September 2010 - building of basic facilities
October 2010 - commissioning of electronics and receiving in the 70cm band at 1k2 bps
November 2010 - regular receiving of signals from cubesats and other selected satellites
December 2010 - operation of the station in heavier weather conditions (frost, snow, wind)
January 2011 - failure of the elevation motor (station operation only with azimuth rotation)
April 2011 - receiving in the 2m band
May 2011 - receiving at 9k6 bps
June 2011 - repair and recovery of the elevation motor (fully functional station)
September 2011 - publishing of our packets database (online)
Since November 25, 2010 we are successfully receiving and decoding packets from satellites O/OREOS and FAST1. Viz. our packets database.
O/OREOS received packet example:
>>> AX25 received packet:
Source: "TONTOFF1", Type: OK
TimeStamp-SYNC: 25.11.2010, 04:01:33.548510
TimeStamp-RECV: 25.11.2010, 04:01:34.126063
PckLen=87: CallSigns: KF6JBP-0 -> UNDEF-0, Type=A8, PID=8A
Packet data:
0000: AA 9C 88 8A 8C 40 E0 96 | 8C 6C 94 84 A0 60 A8 8A ªœˆŠŒ@à–Œl”„ `¨Š
0010: 98 8A 9A 40 61 03 F0 4F | 4F 52 45 4F 53 2E 6F 72 ˜Šš@a.ðOOREOS.or
0020: 67 20 20 20 20 37 46 45 | 44 33 38 30 32 30 30 30 g 7FED3802000
0030: 30 44 37 30 32 35 31 35 | 38 30 30 41 34 30 31 37 0D702515800A4017
0040: 36 30 34 36 36 30 30 30 | 44 35 46 30 39 34 33 30 60466000D5F09430
0050: 30 32 30 34 42 34 36 | 0204B46
ASCII representation of the packet:
OOREOS.org 7FED38020000D702515800A401760466000D5F094300204B46
Decoded data from the packet:
Last Date&Time | 25.11.2010, 04:01:33 | |
Bus Time | 3730815 | |
Solar Panel 3 Current | 3 | mA |
Solar Panel 3 Temperature | 25.2 | °C |
Spacecraft to Ground ID | 81 | |
MHX Current | 384 | mA |
Sensors Voltage | 5 | V |
Bus Data Page | 1142 | |
PL2 Health Data Page | 102 |
FAST1 received packet example:
>>> AX25 received packet:
Source: "TONTOFF1", Type: OK
TimeStamp-SYNC: 27.11.2010, 04:53:53.875565
TimeStamp-RECV: 27.11.2010, 04:53:54.883657
PckLen=139: CallSigns: FAST1-0 -> BEACON-0, Type=03, PID=F0
Packet data:
0000: 84 8A 82 86 9E 9C 60 8C | 82 A6 A8 62 40 61 03 F0 „Š‚†žœ`Œ‚¦¨b@a.ð
0010: 46 31 31 30 30 31 36 31 | 31 34 38 34 37 32 33 2E F11001611484723.
0020: 39 39 38 36 33 35 38 32 | 34 36 35 38 2E 31 30 20 998635824658.10
0030: 2B 33 38 38 38 37 39 35 | 2E 30 31 20 20 2D 35 36 +3888795.01 -56
0040: 37 34 39 37 2E 30 39 20 | 2D 31 35 30 30 2E 32 34 7497.09 -1500.24
0050: 38 32 31 20 2B 31 31 39 | 34 2E 32 31 35 38 34 20 821 +1194.21584
0060: 2D 37 31 33 35 2E 35 39 | 32 37 37 2B 30 33 33 30 -7135.59277+0330
0070: 32 38 32 33 37 32 20 30 | 35 36 20 30 33 33 20 30 282372 056 033 0
0080: 33 32 20 30 33 32 20 30 | 34 38 0D 32 032 048.
ASCII representation of the packet:
F11001611484723.998635824658.10 +3888795.01 -567497.09 -1500.24821 +1194.21584 -7135.59277+0330282372 056 033 032 032 048.
Last Date&Time | 27.11.2010, 04:53:53 | |
FAST# | 1 | |
Satellite Mode | 1 | |
Crosslink Enabled | 0 | |
Thruster Enabled | 0 | |
GPS Week | 1611 | |
GPS Seconds of week | 484723.99863 | |
x (WGS84) | 5824658.10 | |
y (WGS84) | +3888795.01 | |
z (WGS84) | -567497.09 | |
dr_x (ECEF) | -1500.24821 | |
dr_y (ECEF) | +1194.21584 | |
dr_z (ECEF) | -7135.59277 | |
(unknown 2 bytes) | +0 | |
Battery Voltage | 13 | V |
5V Bus Voltage | 4.74 | V |
12V Bus Voltage | 14.66 | V |
Battery Temperature | 056 | °C |
AVR1 Temperature | 033 | °C |
AVR2 Temperature | 032 | °C |
COMM Box Temperature | 032 | °C |
VREG Box Temperature | 048 | °C |
At November/December 2010 we were one of the few HAM stations who succeeded in FAST1 beacon packets receiving and decoding. We were in front of FAST1 contributors. Viz http://fastrac.ae.utexas.edu/for_radio_operators/users/phpBB3/topuploads.php