TV Exciter for ATV and DTV - TV Exciter

Multistandard TV Exciters for ATV and DTV

TV exciter – VHF and UHF bands

The exciter ELX series is available with output powers of 10W, 20W and 50W for all world television standards for VHF bI/bIII and UHF bands. They are engineered for low power systems or for driving high power amplifiers.

Category: . Tag: .

Product Description

Multistandard TV Exciters for ATV and DTV

TV exciter – VHF and UHF bands

VHF – Band III (174-240MHz) UHF – Band IV & V (470-860MHz)

The exciter ELX series is available with output powers of 10W, 20W and 50W for all world television standards for VHF bI/bIII and UHF bands. They are engineered for low power systems or for driving high power amplifiers. The ELX exciter consists of plug-in modules, connected together through a mother board, mounted inside a 19” 3HE rack cabinet.

DTV ready
All international standards available
Fully redundant modular construction
Low power consumption
Latest generation MOSFET technology
Excellent noise figure
“Power reduction” circuit in case of video input loss
“Soft-start” circuit
A.G.C. and A.L.C. circuits
10MHz external synchronization (GPS or other sources)
3 slopes linearity precorrection
Differential phase precorrection
Group delay precorrection
S.A.W. vestigial filter
Automatic white level limiter
Audio overmodulation indication
Remote control interface
Optional:
Transposer configuration
N+1 configuration
Stereo / dual sound coder
1Hz step oscillator
GPS receiver
Battery power supply

ELX series is very versatile thanks to wide range of module types that could form several configurations. All units are provided with display which permits the visualization of all the operating parameters, remote control interface, RS-232 communication port, RF monitor and in-out reference (10 MHz). Synthesized oscillators and broadband amplifiers enable fast and easy frequency changes. The MOSFET technology guarantees high efficiency and an excellent linearity on the entire band of interest.

 

RF PARAMETERS
Frequency range
470 – 860 MHz UHF
170 – 240 MHz VHF bIII
47 – 85 MHz VHF bI
Output power
10 W, 20 W or 50 W, externally adjustable
Intermodulation
< -55 dB (with linearity pre-corrector)
Frequency stability
+/-1 ppm or external synchronized with 10 MHz
Video and Audio carriers
PLL controlled from 10 MHz crystal
VIDEO PARAMETERS
Input connector
BNC female, 75 Ohm
Video input level (ex. adj.)
1 Vpp
White level limiter (int. adj.)
95 %
2T K factor
< 3 %
20T chroma/luminance delay
+/- 5 us
Amplitude/frequency response
+/- 0.5 dB (throughout the vision band)
Differential gain
< 5 %
Differential phase
< 5 degrees
Line time distortion
< 1 %
Field time distortion
< 0.5 %
AM noise (weighted)
< -60 dB
PM noise (weighted)
< -55 dB
Sync pulse compression
< 3 %
AUDIO PARAMETERS
Input connector
XLR Mini Cannon
Audio input level (ex. adj.)
0 dBm +/- 6 dB
Audio pre-emphasis
50 us or 75 us or flat
Audio input impedance (balanced)
600 Ohm or High impedance, selectable
Frequency response (30Hz to15KHz)
+/- 0.5 dB
Harmonic distortion
< 0.5 %
GENERAL
Main input voltage
230 VAC ; (110VAC or 36 – 50 VDC optional)
Operating temperature range
– 5 °C to 45 °C
Relative Humidity
95 % non condensing
Cooling
Natural convection for 10 W version
Forced air for 20/50 W versions
Dimensions (W x H x D)
438 x 132 x 418 mm 10 W version
438 x 132 x 461 mm 20/50 W versions
Size
19” 3HE
Weight
12 Kg for 10 W version
15 Kg for 20/50 W versions

TV exciter

© 2016 Eletec Radio Broadcasting Equipment. All rights reserved. Design & Optimized by iGent Digital

Click Me