Hangzhou Softel Optic Co., Ltd.

home products satellite Series products 860mhz fixed modulator SFT21

860mhz fixed modulator SFT21

Product Details:

Fixed modulator	SFT21
Place of Origin	Zhejiang, China (Mainland)
Brand Name	SOFTEL
Model Number	SFT21

Payment & Shipping Terms:

Packaging Details:	Standard package
Payment Terms:	L/C,T/T

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Detailed Product Description

fixed modulator SFT21

Summary:

SFT21 is used as CATV 860MHz broad casting fixed channel modulator. As STM mounting technology is applied to its circuit, this product features small size, and high frequency. The circuit is designed with independent power supply, so it enjoys good heat spreading and 50Hz screening characteristic. It adopts SAW part that features excellent sideband characteristic for IF circuit, single chip controlled PLL for stable frequency circuit, and modularized amplification for amplifying circuit. Therefore the complete circuit combination is very excellent. It is the first choice headend equipment for large-sized TV station.

Features:

IF input/output interface.

CPU controlled double PLL.

SMT technology.

Independent modularized amplifying circuit.

Parameters:

Item	Unit	Parameter
RF Parameter
Output Frequency	MHz	48.25~750
Max Output Level	dBμV	113
V/A Carrier Power Ratio	dB	10~30
Spurious Rejection	dBnv	60
Freq Accuracy	KHz	≤5
Video Parameter
Video Mod Depth	%	87.5
Freq Response Within	dB	≤2
Differential Gain	%	≤5
Sifferential Phase	º	≤5
C/L Delay	ns	≤40
Video S/N		≥48
Audio Parameter
Audio Dev	KHz	±50
Audio Freq Response	dB	≤1.5
Audio S/N	dB	≥54
General Performance
Power Supply	V	220±10%
Temperature Range		0~40