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Products

1KW VHF/UHF transmitter

Product Category:Products > Analog TV transmitters
Brief introduction:
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  • Details Introduction

Features:

 

1.      Perfect monitor system with microprocessor.

2.      Using common set of techniques and PA modules with high gain and separate switch power supply; Whole equipment adapts low voltage interlocked control in the logic control system. Easy operation & maintenance and high performance.

3.      New broadcast exciter with perfect non-linear pre-correction functions. All non-linear specifications correction can be finished on the panel.

4.      Solid state broadband power amplifiers adopt MOSFET.

5.      Fast fault removing by module replacement without any on-site adjustment.

6.      Equipped with over-voltage, over-current, overheat and over-reflection protection circuits, complies with IEC 215 international safety standard.

7.       High reliable band-pass filter with lumped parameter is used to avoid unwanted emission interfering the adjacent channel.

SPECIFICATIONS

 General

 

System standard

PAL, NTSC or on required

Type of emission

Vision: C3F; Sound: F3E

Operating frequency

Any appointed TV channel within VHF/UHF

Vision carrier frequency stability

±500Hz/month

Sound carrier frequency stability

±200Hz/month relative to vision carrier

Vision/sound power ratio

10:1

Output power

1kW

Output impedance and connector

50Ω, 1 5/8” flange

Unwanted emission (harmonics etc)

-60dB (1mW)

Mains power supply

AC380V±10%, 50±1Hz ( or specified)

Power consumption

5kVA

Cooling

Forced air

Cooling

Forced air 

Vision

 

Video input

1Vp-p±3dB / 75Ω (BNC socket)

Return loss

32dB

Amplitude/Frequency response

See table 1

Group delay

±50ns

Vision output power stability

±0.25dB

Blank level stability

±2.5%

Waveform distortion

 

        50Hz squire wave

2%

    150Hz squire wave

2%

    2T pulse Kp

2%

Low frequency non-linearity

10%

DG

5%

DP

±5°

S/N of random noise (unweighted)

50dB

S/N of LF periodic

50dB

 Sound

 

Audio input      

0dBm±6dBm, 600Ω balanced (X14J4PA socket) 

Maximum frequency deviation

±50kHz

Audio harmonic distortion

1%

A/F response

±1dB (relative to standard pre-emphasis curve)

FM noise level (S/N)

60dB

AM noise level (S/N)

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Shanghai Teng Guang Broadcasting Equipment Co., Ltd.
Add: West 3/F, Bldg.12, No.3199 Zhenbei Road,Shanghai 200331, China