YST level - 990 - h broadcasting all rapid frequency modulator, posted on machine adopts imported secondary frequency high-frequency head as the core of the rf circuit device, fine

　　Sound frequency table filter; An independent module amplifying circuit; Make originally machine more independent. It can be accepted from

　　Video recorder sound, video, satellite receiver and other similar devices baseband signal, it USES the LED

　　According to its working parameters and condition, can be used on the front panel button convenient adjust output frequency and sound

　　Intermediate frequency, video system, the sound has been partial, A/V ratio, radio frequency electric parameter equality. Can be used to build

　　Medium-sized has a medium build

　　Cable system. The second image input level vp-p@87.5%1

　　Differential gain 5 @87.5 %

　　Differential phase 5 @87.5 %

　　Color/brightness delay differential acuities were 45 ns

　　Video frequency band, characteristics

　　1, all microprocessor control, use self-checking monitoring function

　　2, man-machine dialogue to adjust all the parameters

　　3, the output frequency agility type (45-870 MHZ)

　　4, module, amplifier, the output power is great

　　5, sound 4.5, 5.5, 4.5, 6.5 May choose panel

　　6, the built-in LED display working parameters