On September 6, 2024, a letter regarding the high-definition trial broadcast of "China Weather" and the cessation of the standard-definition channel was revealed.
The integrated encrypted broadcasting and transmission system for the paid channel "China Weather" on the Ding Shi platform will begin trial broadcasting at 00:00 on September 20, 2024. According to the approval from the General Administration, the trial period will last from 00:00 on September 20, 2024, to 00:00 on December 20, 2024. The simultaneous broadcasting period for both high and standard definition will be from 00:00 on September 20, 2024, to 24:00 on October 19, 2024. After the simultaneous broadcasting period ends, the standard definition channel will cease transmission. The program encoding for the "China Weather" HD channel will use the AVS+ standard, and the channel transmission will utilize the DVB-S2 standard.
The technical parameters for satellite transmission are as follows:
Satellite Name/Orbital Position: AsiaSat 6 / 120°E
Downlink center frequency/polarization method: 3980MHz/horizontal polarization
Modulation method: 8PSK Forward Error Correction (FEC): 3/4 Symbol rate: 29.5 Msps Roll-off factor: 0.2
We kindly request your cooperation with the reception work for the HD channel of "China Weather," as well as the downlink work for the SD channel, to ensure the safe broadcasting of the channel's programs. This letter serves as a formal notice.
On September 20, 2024, the Asia 6 satellite at 120 degrees East added a new China Weather HD channel, which is broadcast with a lock code. Reception parameters: Downlink frequency 3980, polarization mode horizontal, symbol rate 29500.