RF modulator 
 

Model: ZXT-666/ ZXT-668/ ZXT-688A/ ZXT-688-2/ ZXT-689B/ ZXT689B-2/ ZXT-699/  ZXT-700B/  ZXT-700B-2

RF Output Characteristic

Picture carrier frequency: 210±0.5MHZ

Output Channel: CH11/ CH21-CH69

RF Output Level: 84±4dBuV

P-S Carrier Level Distance: 13±3dBuV

RF Output Impedance: 75Ω not balance

Main Technical Parameter

Video Input Impedance: 1KΩ±0.2KΩ

Video Signal Input Level: (1±0.2) Vp-p

Video Modulation Degree: (85±10)%

White Peak Chipping: ≤90%

Video Amplitude Distinction: ≥+2~ -3dB

Video Signal to Noise: ≥45dB

Audio Input Impedance: ≥10KΩ

Audio Signal Input Level: -5~ -6.5 dBm

Audio Amplitude Distinction: ≥±3dB

Audio Modulation Degree: (80±18)%

Audio Signal to Noise: ≥40 dB

Working Condition

Working Voltage: 5±0.2V

Power-Supply Ripple: ≤30mVp-p (T=25℃)

Power Dissipation: ≤1.0W (T=25℃)

Operating Temperature: ≤1.0W (T=25℃)

Operating Humidity: ≤85%

Storage Temperature: -10℃～50℃

Storage Humidity: ≤90%