Transmitter Tv Manufacturer, Tv Transmitter

HIGH QUALITY

Original system optimization control technology, RF predistortion technology to ensure excellent

performance in the case of CNR system to obtain the largest CTB, CSO and SBS indicators.

PRODUCT FEATURES

High quality	Original system optimization control technology, RF predistortion technology to ensure excellent performance in the case of CNR system to obtain the largest CTB, CSO and SBS indicators.
Flexibility	Phase modulation technology of the external regulator to maximize the performance of the system CSO, to maximize the fiber into the optical power to obtain long-distance transmission, and SBS threshold 13,16,18 field adjustable , Can be applied to different network transmission.
Reliability	19 "1U standard rack, built-in high-performance dual switching power supply, can be 85 ∽2665ac city network voltage in the hot backup work, MS-level automatic switch; chassis cooling can be automatic temperature control.
Intuitive	External modulator and laser is the most expensive device, the machine set up a microprocessor outside the tune. And the working state of the laser is monitored, and the operating parameters are displayed by the panel LCD window.
Network management	Option status monitoring transponder to ensure compliance with the national standard and compatible with the SCTE HMS standard, can achieve network management monitoring.

OPTICAL CHARACTERISTICS

Model	Item	Unit	Performance parameters	Remark
1	Laser model			See specifications
2	Light wavelength	nm	1550±10	If the deviation from the wavelength before ordering to specify
3	Light modulation		External
4	Light output power	dBm	2*4	Specifications have details
5	SBS threshold	dBm	16.5	13,16,18 optional
6	Optical connector form		FC/APC，SC/APC optional	Please specify before ordering
7	Frequency Range	MHz	47～(862)1000
8	Carrier to noise ratio	dB	≥52.0	According to GY / T143-2000 6.2.3.5
9	Flatness	dB	±0.75	According to GY / T143-2000 6.2.4
10	RF input signal level	dBuV	75～88	AGC automatic control
11	Carrier combination third-order beat ratio (C/CTB)	dB	≥65.0	According to GY / T143-2000 6.2.5
12	Carrier combination second-order beat ratio (C/CSO)	dB	≥65.0	According to GY / T143-2000 6.2.6
13	RF input impedance	Ω	75
14	RF input reflection loss	dB	＞16(47～550)MHz / ＞14（550～862)MHz	According to GB / T11381.1
15	Powered by	V	90~265 Electricity	4.2.2.2.5
16	Operating temperature	℃	0～50	Optional -48VDC
17	Laser line width	MHz	0.3
18	RF connector form	-	Metric F head
19	Test port accuracy	dB	-20±1
20	Storage temperature	℃	-20～85
21	Size	″	19″×11″×1.75″	(W) x (D) x (H)
22	Network management interface		RJ45	Support for browsers and SNMP
Note: 1) 59 PAL-D analog TV channel signals are arranged in the 550 MHz frequency range under the specified link loss conditions, the digital modulation signal is transmitted in the frequency range of 550 MHz to 750 (862) MHz, the level of the digital modulation signal 8MHz bandwidth) than the analog signal carrier level is 10dB lower, the optical receiver input light rate of 0dBm, the measurement carrier combination. Third-order beat ratio (C / CTB), carrier combination second-order beat ratio (C / CSO) and carrier to noise ratio (C / N). 2) fiber 50KM + EDFA.

Front Panel

Display screen / Switch Lock / RF Test Port / RJ45 port / Stutas Indicator / Control Button

Back Panel

Fan 1 / Optical Output / Fan 2 / Power 1 / Power 2

Butterfly laser: ORTEL

Butterfly laser with refrigeration, which ensures that the laser works at a cer
ain wavelength and has high power.

Coaxial laser: ORTEL

An analysis of relativistic electron
motion in a free electron laser with co-axial wiggler and ion-channel guiding

is presented

MODULATOR

The purpose of an REmodulator is to ensure that the signal provided by the carrier can
travel from place to place.

1550 nm external optical transmitter dual power

1550 nm external optical transmitter dual power