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Screen Service 500W UHF Television Transmitter

500W UHF Transmitter

Complete Screen Service 500 Watt UHF analog TV transmitter.

SKU: 101918

€2,295.00

Description

Complete Screen Service 500 Watt UHF analog TV transmitter complete with modulator and output filter.

Optional digital modulator available.

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features

RS81 Quartz PLL Synthesized AM/FM Tuner

Up to 40 FM and AM stations may be stored.
RDS ( Radio Data System) Display.
Retains presets when power is off.
Large LCD digital display.
Auto Search and Store function.
Standard 1 space EIA rack chassis.
Headphone output, XLR outputs, and Signal Strength meter.
Remote included.
specification

FM SECTION:

Tuning Range:
87.5-107.9MHz

3 dB Limiting:
12dB

Image Rejection:
53dB

Usable sensitivity mono IHF:
9dB

Selectivity:
(-70KHz : +90KHz)

S/N Ratio at 1 mV Mono:
52dB

Stereo:
50dB

THD at 1 mV 40 kHz deviation:
0.18%

Stereo Separation:
28dB

AM Suppression Mod.:
52dB

Frequency Response:
3dB

Antenna Input Impedance:
75 Ohms

AM SECTION:

Tuning Range:
530 – 1710 kHz (10 kHz increm.), 522 – 1620 kHz (9 kHz increm.)

IF Frequency:
450KHz

Usable Sensitivity:
28dB

Auto Scan Sensitivity:
41dB

S/N Ratio at 5 mV/M:
46dB

6 dB Bandwidth:
7KHz

Image Rejection:
42dB

A.C.A. +/- 9 kHz:
46dB

AGC Action:
43dB

THD at 5mV/M:
0.40%

Antenna Input Impedance:
300 Ohms

Size:
19" x 1.75" x 5" (48.3 x 4.5 x 12 cm)

Weight:
7.1 lbs. (3.2 kg)
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specification

Technical Specifications

Analog Input
600/10 K balanced XLR 50 dB CM Rejection 20-15 Khz. Input level selected by software in 1 dB steps. Sigma-Delta converters 24 bits / 192 Khz

Digital Input
Optional AES-3 digital balanced input Z=110 ohms. Automatic selection of 32, 44, 1, 48, 96 & 192 Khz with sample rate converter (128 dB Dynamic Range, -117 dB THD) to avoid jitter

Analog Output
600 balanced XLR, output level +4 dBm Sigma-Delta converters 24 bits / 192 Khz

Digital Output
Optional AES-3 digital balanced output, Z=110 ohms FS=48 or 96 Khz, selected by software

MPX Output
From 2 Vpp to 5 Vpp in 0.2 steps

Processing Technology
DSP (Digital Signal Processing). Total CPU power 2.700 MIPS

MPX Post-Processing
SuperModulation exclusive Solidyne technology, at 608 Khz oversampling. Fast clipper DC-10 Mhz wideband channel to avoid audible artifacts

Frequency Response
20-15.000 Hz +/-0.25 dB. Flat mode XLR out or digital AES-3 Out. Output without pre-emphasis

Harmonic Distortion (THD)
THD below 0.008 % (30-15 Khz, Flat Mode)

Noise
Dynamic Range= 95 dBA

Stereo Separation
75 dBA @ 1 KHz: > 65 dBA @ 30-15.000 Hz

Subsonic Filter
Chebyshev FC=20 Hz 25 dB rejection at 10 Hz

Asymmetry Canceling
Phase processing technology with Kahn-Bonello algorithms. Cancelling Factor=8:1

Linear Expander
Range=20 dB Attack & Release time software controlled

Gated Wide-Band AGC
Range=30 dB. Attack / Release time & Threshold controlled from LCD screen

Multiband Compressors
DSP controlled. Five Bands, Crossover= 24dB/oct Max compression = 30dB. Slope = 10:1

Compressors Attack/Release Time
Attack and Release controlled separately

IM Canceled Clipper
IM canceling factor : greater than 30 dB below 250 Hz

Fast Clipper
Four channels, absolutely alias free using DC-10 Mhz bandwidth channel

Density Equalizer
Four bands density equalizer with 15 dB range at the output of multiband compressors

Low pass filter
15 Khz digital low pass FIR filter, 60 dB rejection at 19 Khz

Storage of Preset Settings
30 programs that can be changed on-air from PC computer using the 462dsp serial port

RS-232 PC control
RS232 serial port. It can be connected to USB bus with optional external adapter. Optional Ethernet bus connection

Super Modulation
MPX processing for stereo interleaving, allows for 130% L & R audio level at 100% modulation

RS-232 PC control
Yes. It includes free Windows 2000/XP software

AM FM compatible
The user can change the processor's AM/FM firmware chips. Only two socket mounted Flash EPROM IC's have to be replaced. Stereo coder is a separate module

Processing Bands and stages
Five processing bands / Nine processing stages

LCD Display
Blue color, LCD display with backlight. Graphic type Resolution 240 x 64

RDS Encoder
Optional built in RDS encoder

Power
90/127V and 190/230V; 50/60 Hz, selectable from rear panel

Dimensions
483 mm Wide 240 mm Deep, 88 mm High
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specification

General Specification

Operating voltage
230VAC ±15% min

Cooling
Forced Air

Line power
< 2800VA

Operational temperature range
-5° to 50°C

Storage temperature range
-20° to 60°C

Output RF connector
7/16”

Monitor RF connector
BNC

Dimensions
485×133, 2x625mm

Weight
16 kg

Radio Frequency

Frequency range
87.5 to 108MHz

Frequency setting
in 10KHz or 100 KHz steps

Setting mode
By keys on the front panel/Remote

Frequency stability
< ±500Hz/year

Frequency generation
PLL synthesizer

Modulation type
direct VCO frequency modul. F3

Nominal frequency deviation
±75KHz

Deviation linearity in all freq. range
±5KHz

RF output power
2000 W ± 1 d B

Harmonics emission
<-70dBc

Spurious emission
<-95dBc

Modulation Capability

MONO (left and right)
30Hz to 15KHz

STEREO (L-R & AES-EBU)
30Hz to 53KHz

SCA + RDS
30Hz to 100KHz

Composite
Mono or Stereo + SCA + RDS

MPX Characteristics

Signal input
MPX

Composite Input impedance
10Kohm unbalanced

Input connector
BNC

Input level
Adjustable (Front/Remote)

Audio freq. response (30Hz to 60KHz)
< 0, 5 dB

Modulation distortion
<0.2%

Signal to noise ratio
>75dB

Stereo Characteristics

Signal inputs
Left or Right – AES-EBU

Input impedance
600ohm (bal.) or 10k ohm

Input connectors
Canon XLR

Unbalance rejection
>40dB

Input leve
Adjustable (Front/Remote)

Pre-emphasis
75 or 50uS

Audio frequency response (30Hz to 15KHz)
<0.25dB

Audio frequency response (19KHz to 100KHz)
>50dB

Cross-talk between left and right channel
>50dB

Distortion at frequency deviation of 75KHz
<0.1%

Signal to noise referred at deviation of 75KHz
>75dB

Suppression of 38KHz
>50dB

Spurious suppression outside band
in according to ETS 300-384
features

ECO LINE – HIGH EFFICIENCY TRANSMITTER
Wideband circuits amplifiers with LD-Mos technology
Built-in exciter with digital frequency synthesiser
Stereo encoder, RDS, AES-ABU and Audio change-over built-in
Automatic fold-back ROS protection
Fold-back temperature protection
LCD display to check all operating parameters
2x1250W amplifier in only one heat-sink for highest reliability
Switching-mode Power Supply – Efficiency >95%
Sealed duct cooling air with blowers
Easy removable blowers
Harmonics filter & directional coupler built-in 3 unit 19” standard rack
GSM Telemetry & TCP/IP Webserver
Headphone jack on front panel
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specification

Technical Data:

Frequency range

from 87, 5 to 108 MHz

FM modulation

75 KHz peak deviation (adjustable)

Audio and Mpx input level

from -3, 5 to +12, 5 dBm @ 75 KHz deviation

Auxiliary input channel level
SCA
from -12, 5 to +3, 5 dBm @ 7, 5 KHz deviation

RDS
from -24 to -8 dBm @ 2 KHz deviation

Modulation distortion
75 KHz deviation
<0.05%, 0.02% typical

S/N ratio, mono
30÷20000Hz
>76 dB, 80 typical

CCIR
>75 dB, 79 typical

S/N ratio, stereo
30÷20000Hz
>72 dB, 77 typical

CCIR
>68 dB, 72 typical

Audio channels frequency response
30÷15000 Hz
±0.1 dB

Pre-emphasis time constant

25/50/75 μs selectable

Rated RF output power

500W, 1000W, 1500W

Transmitter tuning steps

10/100 KHz

Output power ALC stability

±3%

Harmonic and spurious emissions

<70dB (harmonic), <80 dBc (spurious)

RF output connector

7/16

Power supply
Single phase
230 VAc ± 15%

Three phase
N.A.

Total consumption at rated RF power

<830W (EXC500GT), <2400W (EXC1500GT)

Operative temperature range
suggested
from 0 to 35 °C

extreme
from -10 to +50 °C max (with derating)

Relative humidity

up to 95% not condensing

Dimensions (WxHxD)

483x88x585 mm

Weight

12kg
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