SK-218M Luxurious Fixed Channel Modulator (Adjacent)

Intermediate frequency process, high functional index  

Features                                                 

1. Intermediate frequency process, high functional index.

2. SAW filters process.

3. Luxurious housing.

4. MMIC circuits are on key parts and SMT technology is

applied to the overall unit.

5. Digital displays channel number.

6. Output adopts screw filters.

7. With high security and high temperature stability.

8. Output level adjustment and A/V adjustment on front panel.

9. PLL technique is applied to audio and RF local

oscillator,high frequency stability and high accuracy.

10. We can make different channels according to the customer requests.

Specifications

Reflection	Output Frequency Range	45-870MHz
	Frequency Accuracy	± 5KHz
	Output Level	113dBmV<550MHz
	Out of Band Suppression	≥ 60dB
	Side-band Suppression	≥ 60dB
	Output Impedance	75Ω
	Video to Audio Carrier Ratio	-10dB ~ -20dB
Video Frequency	Input Level	0.6 ~ 1.5Vp-p
	Input Impedance	75Ω
	Input Reflection	30dB min
	K coefficient	4 % max 2T pulse
	Video s/n	50dB( no emphasis )
	C/L Delay	40nsec
	Frequency Response	± 1dB 25Hz ~ 5.8MHz
	Differential Gain	± 4 % modulation 87.5
	Differential Phase	± 4 °
Audio Frequency	Input Level	-10 ~ 10 dBm
	Input Impedance	10KΩ min
	Frequency Response	± 1dB max40Hz ~ 15KHz
	Distortion	0.5 %
	Signal to Noise Ratio	60dB
	Audio Picture Interval	According to the TV system standard
power supply	Voltage	220V or 110V

SK-218M Luxurious Fixed Channel Modulator (Adjacent)