Nilesat 201 (7°W), 2020-12-07
Preparatory education channel je napustio 12303.00MHz, pol.H (DVB-S SID:2305 PID:2313/2314 Engleski), I ne emituje više ni na jednom satelitu u Evropi.

 Nilesat 201 (7°W), 2020-10-15
Novi kanal je počeo sa radom DVB-S Slobodan: Preparatory education channel (Egipat) na 12303.00MHz, pol.H SR:27500 FEC:5/6 SID:2305 PID:2313/2314 Engleski.

 Nilesat 201 (7°W), 2013-01-22
ERTU: Preparatory education channel je napustio 11746.66MHz, pol.V (DVB-S SID:102 PID:1002/1202 Arapski), I ne emituje više ni na jednom satelitu u Evropi.

 Nilesat 201 (7°W), 2012-07-12
ERTU: Novi FEC za Preparatory education channel na 11746.66MHz, pol.V: FEC:3/4 ( SR:27500 SID:102 PID:1002/1202 Arapski - Slobodan).

 Nilesat 201 (7°W), 2012-06-15
Preparatory education channel switched to Nilesat 201 satellite at 11746.66MHz, pol.V (DVB-S , 11746.66MHz, pol.V SR:27500 FEC:5/6 PID:1002/1202 Arapski).

 Eutelsat 7 West A (7°W), 2012-02-21
ERTU: Preparatory education channel je napustio 11430.23MHz, pol.V (DVB-S SID:102 PID:1002/1202 Arapski)

 Eutelsat 7 West A (7°W), 2012-02-18
ERTU: Nova frekvencija za Preparatory education channel: 11430.23MHz, pol.V (DVB-S SR:27500 FEC:5/6 SID:102 PID:1002/1202 Arapski- Slobodan).

 Nilesat 101 (33.1°E), 2009-06-06
ERTU: Novi FEC za Preparatory education channel na 11747.00MHz, pol.V: FEC:5/6 ( SR:27500 SID:102 PID:1002/1202 Arapski - Slobodan).