FMUSER INTERNATIONAL GROUP INC.
广州市汉婷生物技术开发有限公司
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The symbol rate range is from 5.0~7.0 Msps in 1ksps step.
Note: W hen users choose 6M as the frequency point bandwidth, the
symbol rate should not exceed 5.217Msps;
When users choose 8M as the frequency point bandwidth, the symbol rate
should not exceed 6.956Msps.
4.3.2.5 Frequency point bandwidth
After entering the submenu by pressing ENTER key, user can set the
bandwidth by moving the LEFT/RIGHT key and then repressing ENTER to
confirm.
There are two possible options: 6MHz and 8MHz.
Therefore, the frequency interval should be integral multiple of
6MHz/8MHz.
User can refer to the f ormula as below:
RF_BW =symb_rate*(1+roll_off)
RF_BW
：
Frequency bandwidth
Symb rate
：
Symbol rate
Roll off
：
Roll off factor
（
according to EN300429/ITU-T J.83A
，
the roll off
factor is 0.15
）
As the formula shown, user should set the symbol rate no exceeding
5.214Msps/6.956Msps to ensure the bandwidth for each channel no more
than 6MHz/8MHz.
4.3.2.6 RF Level Setting
After entering the submenu by pressing ENTER key, user can set the RF
Level by moving the UP/DOW N/LEFT/RIGHT key and then repressing
►
1.5 Bandwidth
*8MHz 6MHz
►
1.5 Bandwidth
?8MHz 6MHz
