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Ales Povalac 2019-06-22 09:30:05 +02:00 zatwierdzone przez GitHub
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@ -19,7 +19,7 @@ Users will be able to command these functions after the system has been successf
![Transponder modes](Docs/transponder_modes.png)
## Telemetry streams
The PSK MCU generates telemetry data in PSK31 format, which is transmitted on 435.350 MHz, carrier at 374 Hz. This telemetry consists of current and historical frame. Current frame contains frame counter, reboot counter, values of PSK level, AGC, battery voltage, 5V voltage, current, RX temperature, and several period counter values. History frame is pseudo-randomly selected from memory and contains the same information except for period counters. Example telemetry frame: *PSAT-2 C apng eFaaijtkpokoaB aaaa A aokF eEadjluappjxay*. Such frame can be [decoded with the provided PHP decoder](http://www.urel.feec.vutbr.cz/esl/psat2/psat2tlm.php). Valid telemetry frames are automatically saved further analysis.
The PSK MCU generates telemetry data in PSK31 format, which is transmitted on 435.350 MHz, carrier at 374 Hz. This telemetry consists of current and historical frame. Current frame contains frame counter, reboot counter, values of PSK level, AGC, battery voltage, 5V voltage, current, RX temperature, and several period counter values. History frame is pseudo-randomly selected from memory and contains the same information except for period counters. Example telemetry frame: *PSAT-2 C apng eFaaijtkpokoaB aaaa A aokF eEadjluappjxay*. Such frame can be [decoded with the provided PHP decoder](http://www.urel.feec.vutbr.cz/esl/psat2/psat2tlm.php). Valid telemetry frames are automatically saved for further analysis.
The other telemetry stream is generated by SSTV MCU, transmitted in PSK31 format on the same frequency, carrier at 280 Hz. Telemetry contains current state of non-persistent tick counter, measurements of MCU temperature and ambient light in lux, state of several counters (authorization, planned events, reboots, errors, audio starts, camera images, commands accepted, commands rejected, commands unauthorized). Example telemetry frame: *PSAT-2 S ashd aDbiaaaa qralaitkboFxaa*. Again, such frame can be [decoded with the provided PHP decoder](http://www.urel.feec.vutbr.cz/esl/psat2/psat2tlm.php).