Specifications

Cost effectuve optical receiver TFR7800Q
GaAs module
Reserve network management interface,II type transponder
LED indicator

Features

• Perfect surge suppression circuitry, improved the anti-lightning strike and the prevention of lightning surge shocks
• Input stage adopt imported low-noise GaAs amplifier, output stage adopt imported  CATV high-performance, high reliability GaAs power multiplier module,greatly improved the C/N and non-linear distortion characteristics while significantly reducing the power consumption
• Rigorous reliability test,MTBF >100,000 hours
• Photodetector:high-quality device which responsiveness is greater than 0.9A/W
• Receive optical power digital tube display, easy for on-site debugging and maintenance
• Optical AGC function,receive at +1dBm~-6dBm, the output level unchange; the output stability is ±0.5dB
• RF output level fixed-adjustable,slope adjustable; all use attenuation inserts form for regulation
• 1~2 output ports optional,branch/ distribution optional
• Reserve GB network management interface Class II transponder,easy for on-site upgrade directly 

Diagram

 

Specifications

Item		Unit	Description	Remark
Optical	Optical Wavelength	nm	1290~1560
	Optical Connector Type		FC/APC or SC/APC
	Received Optical Power Range	dBm	+2~-8
	Optical AGC Control Range	dBm	+1~-6
RF	Frequency Range	MHz	47~860(1000)
	Flatness	dB	±0.75
	RF Ports		1~2	Branch/Distribution Optional
	Nominal Output Level(received optical power is +1~-6dBm)	dBuV	112	Single output port
			108	Dual-output port
	RF Output Impedance	Ω	75
	Gain Adjustment Range	dB	0~20	Continuous or step adjustable
	Slope Adjustment Range *	dB	0~18	1dB step
	Output Return Loss	dB	≥16	Bandwidth within  860MHz
Link Index(Remark 1)	C/N	dB	>46	Optical receive power -6dBm,equilibrium 9dB,Single-port level 110dBuV flat output
	CTB	dBc	>70
	CSO	dBc	>65
General	Dimension	mm	470×250×180
	Voltage	Vac	220 or 60
	Power Consumption	VA	<14
	Operating Temperature	°c	-25~+55
	Storage Temperature	°c	-25~+65
	Weigth	Kg	2.5
Remark 1: Add arranged 60 PAL-D analog TV channels and 35 IPQAM digital modulation signals, and the level lower than analog carrier 10dB