This paper mainly introduces characteristics of the FM screening and the principle of dot appearance.
主要介绍调频加网技术的特点和网点产生的原理。
Level 1 FM screening is above the centary of the tartars'folk FM screening, use a fixed size of ideas and in different sizes space interval .
一级调频加网就是上面论述的纯正调频加网，使用固定尺寸的小点子和不同尺寸的空间间隔。
Research results show that by using the pseudo random function and RIP for AM screening, the image of separate color can be input in the form of FM screening.
研究表明，采用伪随机函数，对分色后的图象文件进行调频加网，再经现有的调幅加网RIP，可实现图象的调频加网输出；
A printing plate comes with sharp detail , whether it's FM or am screening has excellent performance.
印版还具备锐利的细节，无论是调频或调幅加网都有极好的表现。
The main conclusions: (1) FM network is not higher the better the printed results, but up to a certain post-screening lines instead of its print quality began to decline.
主要结论：(1)调频加网不是越高，其印刷效果就越好，而是达到一定的加网线数后其印刷质量反而开始下降。
The main conclusions: (1) FM network is not higher the better the printed results, but up to a certain post-screening lines instead of its print quality began to decline.
主要结论：(1)调频加网不是越高，其印刷效果就越好，而是达到一定的加网线数后其印刷质量反而开始下降。
应用推荐