ITU
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- 【Organization】ITU
- 【Document #】ITU-R QUESTION 275/4
Performance objectives of digital links in the fixed-satellite and mobile-satellite services forming elements of the Next Generation Network
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R QUESTION 230-1/3
Prediction methods and models applicable to power line telecommunications systems
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R QUESTION 229-1/3
Prediction of sky-wave propagation conditions, signal intensity, circuit performance and reliability at frequencies between about 1.6 and 30 MHz, in particular for systems using digital modulation techniques
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R SA.1344-1
Preferred frequency bands and bandwidths for the transmission of space VLBI data within existing space research service (SRS) allocations
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R QUESTION 221-1/3
Propagation by way of sporadic E and other ionization
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R QUESTION 207-4/3
Propagation data and prediction methods for satellite mobile and radiodetermination services above about 0.1 GHz
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R QUESTION 204-4/3
Propagation data and prediction methods required for terrestrial line-of-sight systems
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R QUESTION 211-5/3
Propagation data and propagation models in the frequency range 300 MHz to 100 GHz for the design of short-range wireless radiocommunication systems and wireless local area networks (WLAN)
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R QUESTION 203-4/3
PROPAGATION PREDICTION METHODS FOR TERRESTRIAL BROADCASTING, FIXED (BROADBAND ACCESS) AND MOBILE SERVICES USING FREQUENCIES ABOVE 30 MHZ
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active
- 【Organization】ITU
- 【Document #】ITU-R QUESTION 280/4
Receiving earth station antennas for the broadcasting-satellite service
- 【Date】2009/1/1
- 【Language】English
- 【Status】Active