| 摘要 |
The invention provides a method and system for simplified signal processing between the feed horn assembly and the frame relay equipment. Data is directly modulated from the frame relay equipment onto an L-band carrier and block up-converted for output at the feed horn. Block up-conversion is aided by adding a DC power signal and a 10.0 megahertz frequency reference signal to the L-band modulated signal (so as to protect the frequency reference against variations due to external elements), while maintaining spectral purity of the L-band modulated signal. |
