OMB 1kW TV Transmitter - low cost at Broadcast Warehouse

OMB 1kW TV Transmitter

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Features

1KW TV Transmitter
MOT 10/15 Platinum modulator/transmitter
2 Hybrid combined
Designed with LDMOS technology
Complete alarm
Protects against overcurrent, temperature e.t.c

The MOT 1000 Platinum is a 1KW TV transmitter made up of the MOT 10/15 Platinum modulator/transmitter, 2 hybrid-combined S 500 TV amplifiers, designed with LDMOS technology.

Using the complete alarm and digitalized information systems of the MOT 1000, the user can control the following parameters: forward power, reflected power, service voltages, video level, audio level, synchronism level and temperature.

The transmitter includes protections against: forward power excess, SWR excess, power supply over-voltage, overcurrent and over-voltage in the final stage and temperature. The MOT 1000 Platinum also includes digital telemetry output and Notch BPF (Band Pass Filter).

Technical Specifications
MOT 10/15 PLATINUM
RF
Frequency range	Bands IV,V (470~860MHz)
Output power	0 ~ 15W adjustable
Output power control	Automatic or manual (switching selectable)
Channel Local oscillator: frequency stability	2.5ppm (0.05 ppm optional)
Spurious&harmonics level	<- 60dB
RF output connector/impedance	N Female / 50W
VIDEO
Input connector/impedance	BNC Female / 75W
Nominal input level	1Vpp
Input return loss	³ 30dB up to 5MHz
DC restorer	Clamped to Back Porch
White clipper	90 ~ 115% adjustable (chrominance non-affected)
Group delay pre-corrector	8 correcting cells
Group delay	£ 50hs (with professional VSB filter)
Frequency response	±0.5dB
Differential gain	£ 5%
Differential phase	£ ± 5%
luminance non-linearity	£ 5%
Signal to hum ratio	45dB (weighted)
S/N ratio	³ 65dB weighted, ³ 55dB un-weighted
Black level variation	£ 2%
2T k FACTOR	£ 1%
Video IF	32.7 ~ 45.75MHz (customer requested)
External link if level	-15 ~ -10dBm
AUDIO
Input connector/impedance	XLR Female 600W / 10KW balanced
Nominal input level	2.2Vpp (-10 to + 6dB adjustable)
Pre-enphasis	Options: Flat, 50ms or 75ms
LOW pass filter	15KHz, 100KHz
LIMITATION CIRCUIT	Dfnom + 1 dB
Frequency response	± 0.5 dB
Harmonic Distortion	£ 0.5%
Intermodulation distortion	d2 £ - 60dB, d3 £ - 60dB
FM CCIR S/N ratio	£ 60dB weighted, £ 60dB un-weighted (ref. 50KHz)
AM S/N ratio	£ 70dB asynchronous, £ 50dB synchronous (ref. 100%)
Intermediate frequency	From 30.5 to 41.25MHz (customer requested)
IF level (on external link)	Adjustable
Channel local oscillator
Offset	± 32KHz max.
Frequency stability	± 2.5ppm from - 5 to + 45ºC
Reference internal input for the precision oscillator	5MHz
Output level (mixer input)	+ 7dBm ± 1dB
FM CCIR S/N ratio	³ 60dB weighted, ³ 60dB un-weighted (ref. 50 KHz)
AC power supply	90 ~ 260VAC, 50/60Hz
Cabinet	3RU (19'' standard rack)
Weight	28.66Lb (13Kg)
Operating temperature range	- 5 ~ + 45ºC
Relative humidity range	20 to 90% non-condensed
Remote control/telemetry	DB-9 Female
General specifications
Frequency range	Bands IV, V (470 ~ 860MHz)
Amplifying class	AB1 Class
Cooling	Air forced with axial blowers
Operating temperature range	- 10 ~ + 45ºC
Storage temperature range	- 30 ~ + 85ºC
Maximum relative humidity	90% (without condensation)
Power supply	180 ~ 240VAC, single-phase, 50/60Hz (other under request)
Comsumption	1.8KVA average
Protections	Excess of: Forward power, SWR, Temperature, power supply voltage, final stage consumption, and input power
Dimensions	453 x 623 x 222mm (W x D x H)
Cabinet	5RU (19" Standard rack)
Weight	30Kg (66lbs)
Input parameters
Input impedance	50W asymmetrical
Input connector	N Female
Input SWR	1.7 : 1 typical (2:1 maximum)
Nomimal RF input level	8Wblp
Output parameters
Nominal output power	500Wsp (blp)
Typical output power	500Wsp (blp)
Output impedance	50W asymmetrical
Output connector	DIN 7/16'' Female (other connector type under request)
RF monitor connector	BNC Female
RF monitor sample level	- 60dBc
Maximum LOAD SWR	02:01
Intermodulation distortion	Better than -58 dB (at nominal output power)
Spurious	Better than -58dB (with output filter)
Note	OMB LDMOS power amplifiers are ready for digital TV
GENERAL SPECIFICATIONS
NOMINAL OUTPUT POWER	1kW
Consumption	1.8W
Dimensions	1.240 x 590 x 900mm (H x W x H)
Weight	87Kg (191.4lbs)

OMB 1kW TV Transmitter datasheet
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