The model ST-GS221A is a video signal anti-interference device using signal frequency shift technology, The device consists of a transmitter unit and receiver unit. Transmitter unit shift the video signal to less interference frequency band and receiver demodulate signal to original video signal over single coaxial cable. Avoiding low frequency interference in the process of transmission, improving video signal anti-interference capacity, effectively eliminate the problem of image tearing,crosstalk and rolling and etc.The device is built-in lightning surge protection circuit,improve product stability.It is widely used in the video surveillance and control system.

 

*Power supply: 12V DC;
*Unique technology: using signal frequency shift technology, improve anti-interference capacity;
*Transmission distance: 100-600m;
*Compatibility: compatible with various coaxial cable .including single core,  multicore coaxial cable;
*Anti-interference protection: interference rejection, super lightning surge protection. anti-static ,circuit transient impact protection;
*Appearance structure: exquisite craft , support MIT rack, easy installation

 

 

Item		Description
function	anti-interference mode	modulation frequency
	modulation frequency	30～40MHz
	transmission distance	100～600m
video connector	video connector	female BNC
	input signal amplitude	0.6～1.5V
	frequency response	0～6MHz
	input resistance	75Ω
	output resistance	75Ω
	compatible video format	PAL,NTSC
protection level	surge protection	2KV  per：IEC 6100-4-5
	ESD	1a contact discharge  level 3 1b air charge level 3 perIEC6 1000-4-2
operation environment	operation temperature	0～55℃
	storage temperature	-20～70℃
	himidity(non-condensing)	0～95%
physical properties	dimension(L*W*H)	130mm×60mm×25mm（including connector）
	shell	aluminum
	color	black
	N.W.	transmitter：138g,  receiver：143g
stsbility	(MTBF)	>20000 h