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project:gctx [2012/11/20 23:55]
jenda [Limitations]
project:gctx [2014/09/08 18:55] (current)
jenda [Inspiration] pifm
Line 9: Line 9:
 hw=-| hw=-|
 founder=[[user:jenda]]| founder=[[user:jenda]]|
-interested=[[user:EDITME]]\\ [[user:EDITME]]|+interested=[[user:mrkva]]|
 status=active status=active
 }} }}
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   * [[http://www.erikyyy.de/tempest/|Tempest for Eliza]] - AM audio transceiver (tested up to 145 MHz with Intel Mobile 945) - frequency accuracy is +/- 20 kHz, can be fixed in software   * [[http://www.erikyyy.de/tempest/|Tempest for Eliza]] - AM audio transceiver (tested up to 145 MHz with Intel Mobile 945) - frequency accuracy is +/- 20 kHz, can be fixed in software
   * [[http://bellard.org/dvbt/|TV Signal Generation]] - PAL/SECAM and DVB-T Multiplex (!) transceiver   * [[http://bellard.org/dvbt/|TV Signal Generation]] - PAL/SECAM and DVB-T Multiplex (!) transceiver
 +  * http://www.reddit.com/r/raspberry_pi/comments/14k5o3/raspberry_pi_fm_transmitter_with_no_additional/
  
 ===== Goal ===== ===== Goal =====
  
 Goal is to create GNU Radio sink, that will eat your data and transmit them. Goal is to create GNU Radio sink, that will eat your data and transmit them.
 +
 +===== TODO =====
 +  * learn how GnuRadio works and how to write a simple sink for it
 +  * switch on VGA output and make it display our picture without affecting other screens
 +  * turn vsync and keep track how fast are frames being refreshed - learn SDL? :(
 +  * split incoming signal into separate pictures
 +  * display each picture for calculated time, generating the wanted signal
 +  * make a [[http://www.w8ji.com/shortwave%20broadcast%20amplifier.htm|super big power amplifier]] so the whole world can hear us!
  
 ===== Limitations ===== ===== Limitations =====
 
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