Digital Microwave Link
The TMDTL series Digital Television Links is designed to operate in the 1.3 to 24.5 GHz range to transfer multiple high quality digital Video and Audio programs in the same user defined RF channel bandwidth.
Ultra low phase noise oscillators and a powerful linearity precorrector allow to minimize the Bit Error Rate (BER) also using the maximum spectrum efficiency modulation systems (BPSK, QPSK, 8PSK or QAM).
Bit-rate programmability. The digital modulators and demodulators have a fully programmable bit-rate allocation for each program to widely define the quality and bandwidth of the modulation: this to guarantee the maximum flexibility in all applications.
Indoor & Outdoor. The TMDT & TMDR series microwave up & down converters are suitable in indoor or outdoor waterproof version for rear parabola mounting facilities.
Analog or digital. All the TMDT & TMDR series microwave up & down converters are suitable for digital or analog operation, with full compatibility with existing analog IF modulators & demodulators. They are available with standard 70 MHz IF or with different IF frequency on request.
Full metering, control, setting and system diagnostic is available on the front panel.
Digital networks compatibility. The TMDTL links are suitable
to be integrated in any analog or digital network including satellite
digital receivers and terrestrial digital or analog broadcasting transmitters.
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