-MICROWAVE LINK AUDIO MT
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The MT/MR QPSK 2+2 studio-to-transmitter link has been designed using the latest high quality digital signal transmission technology.
This system allows the transmission and reception of 2+2 Mbits/s data flows, so it is possible to send up to 4 independent audio signals (or two multiplexed audio signals) with higher quality than CD’s. Optionally it can be supplied with two AES-EBU inputs and two AES-EBU outputs, or with two AES-EBU inputs and four analog outputs.
The used modulation (QPSK) makes the link able to reach distances that analog links cannot. It can be supplied in 300MHz sub-bands and 200mW output power (optionally 4W).
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TECHNICAL FEATURES:
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GENERAL
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POWER SUPPLY
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230 VAC ±15%, 50 Hz ±2 Hz
Switch: 115 VAC ±15%, 60 Hz ±3 Hz
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opTional battery power supply
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With standard battery: 24 VDC (20 to 28 VDC)
With optional battery (special request) 48 VDC
(36 to 75 VDC)
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INPUTS/OUTPUTS INTERFACE
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4 inputs/outputS MONO
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Input Interface: 600 Ω balanced (XLR-3 female)
Output Interface: <50 Ω balanced (XLR-3 male)
Input/Output level: +9dBm
THD (Total Harmonic Distortion) (1KHz): 0.01%
SINAD (Signal to Noise and Distortion): 79.5dB
S/N ratio: 86dB
Diaphony: 84dB
Audio bandwidth: - 0.3dB (40-19000 Hz)
- 0.5dB (30-21500 Hz)
- 1dB (20-22500 Hz)
- 3dB (20-23000 Hz)
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2 aes-ebu inputs/outputs
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Input interface: 120 Ω balanced (XLR-3 female)
Output interface: 120 Ω balanced (XLR-3 male)
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2 STEREO INPUTS/OUTPUTS
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Input Interface: 600 Ω unbalanced (BNC female)
Output Interface: <50 Ω unbalanced (BNC female)
Input/Output level: 0dBm
THD (Total Harmonic Distortion) (1KHz): 0.1%
SINAD (Signal to Noise and Distortion):60dB
S/N ratio: 76dB
Diaphony: 84dB
Audio bandwidth: - 0.3dB (40-58000 Hz)
- 0.5dB (30-60000 Hz)
- 1dB (20-62500 Hz)
- 3dB (20-64000 Hz)
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fi
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FI MODULATION 70 MHz
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MODULATION TYPE
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QPSK
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BITS MODULATION RATE
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2+2 Mbit/s (4.608 Mbit/s)
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FI FREQUENCY DEVIATION
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70 MHz ≤± 20 PPM
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FI NOMINAL OUTPUT LEVEL
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+5 dBm
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RF HEAD AND MODULATOR/DEMODULATOR FI CHASSIS CONNECTION
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WIRE IMPEDANCE
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50 Ω
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REMOTE RF HEAD POWER
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+24V nominal
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HEADS
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general
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Operation frequency band: 6 ÷ 13 GHz
N or SMA connector
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TRANSMItter head
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RF output power: +23 dBm ± 2 dB (200mW)
Frequency derive of operating temperature rate: ≤±10PPM
Spurious suppression: ≥ 60dB
70 MHz nominal FI Input: +5 dBm (-10 to +5 dBm)
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receptor head
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Noise Figure: ≤ 5dB
Input return losses: ≥ 20dB
Nominal Input level: - 40 dBm
Maximum input level: - 20 dBm
Frequency derive of operating temperature rate: ≤±10PPM
Alarm threshold: RF output signal “BER”= 1x10- 3
Image rejection: ≥ 65dB
FI nominal gain (RF head): +40dB
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general specifications
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mt qpsk transmitter
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Dimensions: 1 RU (19’’ standard rack)
(260x210x130mm)
Weight: 5 Kg (11,02 lbs)
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mr qpsk receptor
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Dimensions: 1 RU (19’’ standard rack)
(260x210x130mm)
Weight: 5 Kg (11,02 lbs)
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operating temperature range
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TX and RX Heads: -20ºC to + 45ºC
Transmitter and Receptor: -5ºC to + 45ºC
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storing temperature range (all units)
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-40ºC to + 70ºC
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Dernière mise à jour de cette page le 02/06/2009
Merci d'avoir choisir Botrans comme votre fournisseur et consultant dans les domaines signaler si-haut.
