Digital Microwave Link
The TDQTD2/L is a digital DVB receiver specifically designed and developed for broadcasting and applications. The IF input is in L-band.
Each part of receiver has been designed with care in order to guarantee high quality operation and an agreeable design. Special attention has been shown to the mechanical, electrical and software design, applying them in a way that assures excellent performances in every working conditions.
The TDQTD2/L receives and decodes satellite signals with along DVB-S standard and can be tuned to any specified channel frequency, polarization and data rate.
All data can be selected from the front panel keyboard and is shown on the LCD back-light display panel with self-explanatory, easy-to-use menus.
The production testing procedures have been methodically and
technically planned to obtain a maximum accuracy and reliability.
The receiver TDQTD2/L contains one MPEG-2 decoder board
with 2 Video and 4 Audio output channels capacity. It is equipped with
the following presettable alarms can close the relay:
PSU
failure;
Absence or decrease of the received field;
B.E.R. increase;
Smart card related alarms: up-side insertion, card absence, no rights
on the smart card;
MPEG-2 stalling (no video);
The receiver TDQTD2/L can also do the following measurements,
selectable on the front panel display:
Field
power in dBuV and dBm;
B.E.R. before and after viterbi;
SNR (C/N after digital demodulation);
Receiver temperature in °C;
EB/NO;
Unlock counter;
FEC and SPECTRUM status: normal or inverted.
Meets or exceeds the international standards for safety
and electrical specifications.
Digital Microwave Link
| UP-CONVERTERS TMDT Series |
DOWN-CONVERTERS TMDR Series |
REPEATERS | FREQUENCY RANGE | RF POWER (DBM)(BPSK,QPSK, 8PSK) | RF POWER (DBM) (16 QAM) |
|---|---|---|---|---|---|
| TMDT 2/28 | TMDR 2 | TMDR 2/28 | 1.3 - 2.7 GHz | 28 | 25 |
| TMDT 2/32 | TMDR 2 | TMDR 2/32 | 1.3 - 2.7 GHz | 32 | 29 |
| TMDT 2/38 | TMDR 2 | TMDR 2/38 | 1.3 - 2.7 GHz | 38 | 35 |
| TMDT 4/26 | TMDR 4 | TMDR 4/26 | 4.2 - 4.8 GHz | 26 | 23 |
| TMDT 4/32 | TMDR 4 | TMDR 4/32 | 4.2 - 4.8 GHz | 32 | 29 |
| TMDT 4/35 | TMDR 4 | TMDR 4/35 | 4.2 - 4.8 GHz | 35 | 32 |
| TMDT 8/16 | TMDR 8 | TMDR 8/16 | 5.4 - 9.9 GHz | 16 | 13 |
| TMDT 8/26 | TMDR 8 | TMDR 8/26 | 5.4 - 9.9 GHz | 26 | 23 |
| TMDT 8/32 | TMDR 8 | TMDR 8/32 | 5.4 - 9.9 GHz | 32 | 29 |
| TMDT 8/35 | TMDR 8 | TMDR 8/35 | 5.4 - 9.9 GHz | 35 | 32 |
| TMDT 10/16 | TMDR 10 | TMDR 10/16 | 10.0 - 12.7 GHz | 16 | 13 |
| TMDT 10/26 | TMDR 10 | TMDR 10/26 | 10.0 - 12.7 GHz | 26 | 23 |
| TMDT 10/32 | TMDR 10 | TMDR 10/32 | 10.0 - 12.7 GHz | 32 | 29 |
| TMDT 10/35 | TMDR 10 | TMDR 10/35 | 10.0 - 12.7 GHz | 35 | 32 |
| TMDT 14/26 | TMDR 14 | TMDR 14/26 | 12.8 - 15 GHz | 26 | 23 |
| TMDT 14/32 | TMDR 14 | TMDR 14/32 | 12.8 - 15 GHz | 32 | 29 |
| TMDT 14/35 | TMDR 14 | TMDR 14/35 | 12.8 - 15 GHz | 35 | 32 |
TMDT, TMDR, TMDR series Up & down converters characteristics
IF frequency 70 MHz for TX, L-band (950 - 2250 MHz ) for RX (others on
request)
Output power tolerance (TMDT & TMDR series) ± 1 dB
RF impedance 50 W
Frequency stability:
For frequencies below 3 GHz ±10 ppm
For frequencies above 3 GHz ± 45 ppm (±10 ppm on request)
Amplitude frequency response (fc ± 10 MHz) ± 0.25 dB
Group delay response (fc ± 10 MHz) ± 2 ns
Receiver noise figure < 5 dB
Image rejection > 70 dB
Receiver sensitivity (for B.E.R.<10exp-5) <-90 dBm
DQM IF Modulator & Encoder Characteristics
Modulation QPSK (DVB-S compliant) (8PSK or 16QAM on request)
IF Output Frequency 70 MHz (L-band on request)
Output level + 5 to -15 dBm adjustable
Output Connector BNC
Output Impedance 50/75 W selectable
Bit-Rate Up to 48 Mbit/s
Code Rate 1/2,2/3,3/4,5/6,7/8 selectable
Symbol Rate Up to 30 MS/s
Channel Bandwidth Dependent on the symbol rate setting (from 3 to 40 MHz)
Video Input Standard PAL-NTSC-SECAM selectable
Analog Video Input CVBS composite (BNC) and S-VHS (Y-C)
Analog Video Input Level 1 Vpp ± 6 dB
Digital Video Input (optional) SDI standard
Analog Audio Input Balanced (DB9 Connector)
Analog Audio Input Level -10 to +16 dBm
Digital Audio Input AES-EBU (DB9 Connector)
Video encoding format MPEG-2 4:2:0 MP@ML (4:2:2 on request)
Audio encoding format MPEG-1, Layer 2, up to 448 kbps
Transport Stream Output LVDS, optional ASI
Transport Stream Input (optional) ASI
Remote Control (option) RS 232
DQD IF Demodulator & Decoder Characteristics
Modulation QPSK (DVB-S compliant) (8PSK or 16QAM on request)
Input IF frequency L-Band (70 MHz on request)
Input level From –65 to –20 dBm
Input connector “F” female
Input impedance 75 Ohm
RF input attenuator 0/20 dB programmable
Symbol rate From 2 to 45 MS/s
Code Rate 1/2,2/3,3/4,5/6,7/8 selectable
Transport stream interface (optional) LVDS
Video Output Standard PAL-NTSC-SECAM selectable
Analog Video Output CVBS composite (BNC)
Analog Video Output Level 1 Vpp adjustable
Digital Video Output (optional) SDI standard
Analog Audio Output Balanced
Analog Audio Output Level 0 to +16 dBm
Transport Stream Output LVDS (optional ASI)
Remote Control (optional) RS 232
General operating conditions:
AC operating voltage 115/208/230/240 Vac±15%, 47 to 62 Hz singlephase
DC operating voltage (optional) 24 Vdc±20%
Operating temperature range -5° ÷ +45° C
Humidity 95% max
ITEL S.r.l. TELECOMUNICATIONS AND BROADCASTING SERVICES Via Friuli, 6 - 33074 Fontanafredda (PN) - ITALY Tel. +39 0434 997667 - Fax. +39 0434 997687