Solid State Transmitters
To see the picture of the TTU 5 LD please refer to the VAM and the TIX U5.
- VAM , IF Modulator,
- TIF U5, IF to Channel Converter.
New LDMOS technology. Using the latest LDMOS technology and new PA module design, the RF amplifier is extremely rugged and exhibits excellent thermal characteristics. Linearity and IMD performance are better than older bi-polar technology. This means an excellent transmission quality with analogue or digital operation.
Digital upgradeable. The TTU 5 LD transmitter is upgradeable for digital transmission. Optional kits are available for easy field digital upgrading. This reduces the cost of later upgrade to digital while providing the best quality of analogue service currently available.
Frequency-agile. Transmitter is fully broadband. The RF stage can operate on any UHF channel, selectable via a digital selector.
Advanced controller provides full front panel transmitter control capabilities and extensive metering. Standard or special remote control interface is also available.
Meets or exceeds all international standards for safety and electrical requirements.
Solid State Transmitters
RF
characteristics:
Frequency range 470-860 MHz
Bandwidth Broadband
Output Power:
TTU 5 LD 6 Wps (2 Wrms)
TTU 10 LD Wps (3.5 Wrms)
TTU 20 LD Wps (6.5 Wrms)
Output impedance 50 W
Output connector N (others on request)
Spurious and harmonic suppression (ref. to carrier) < - 60 dBc (-62
dBc typ.)
Power stability < 1%
Intermodulation (IMD-DIN 45004 -8, -16, -10 dB) < -60 dB (typ. - 62
dBc)
Video characteristics:
Input connector BNC unbalanced
Input impedance 75 W
Input signal level 1 Vp.p.
Input return loss >30 dB
Differential gain < ± 3 %
Differential phase < ± 3 °
Amplitude frequency response (in the vision band) < ± 0.5 dB
Group delay frequency response (in the vision band) < ± 50 nS
S/N ratio > 64 dB
2T K factor < 1.8 %
Luminance non linearity < 2 %
Audio Characteristics:
Input connector XLR balanced
Input impedance 600 W
THD (50 KHz peak deviation at 1 KHz) < 0.3 %
S/N (50 KHz peak deviation at 1 KHz) > 65 dB
Deviation from preemphasis curve (20 Hz to 15 KHz) ± 0.5 dB
Metering:
Forward and reflected power, DC voltages and currents, inlet and heatsink
air temperatures
Alarms:
VSWR, over temperature, vision signal missing, cooling system failure,
overdriving
Operating conditions:
Operating voltage 110/220/240 Vac ±10%, 50/60 Hz single phase or
380/415 Vac ±10%, 50/60 Hz three phases
Power Consumption (at maximum power):
TTU 5 LD 44 VA
TTU 10 LD 56 VA
TTU 20 LD 65 VA
Cooling forced air with fans
Operating temperature -5° ÷ +45° C
Humidity 95% max
Mechanicals (all models):
Dimensions (WxHxD) 540x280x720 mm
Weight 72 kg
ITEL S.r.l. TELECOMUNICATIONS AND BROADCASTING SERVICES Via Friuli, 6 - 33074 Fontanafredda (PN) - ITALY Tel. +39 0434 997667 - Fax. +39 0434 997687