Elettronika AUTV/3500LD, User Manual

Page: 13 / 72

13
TECHNICAL CHARACTERISTICS
RF SECTION
Frequency range 470 - 860MHz
Output power 3,5kW PEP
Vision / Sound power ratio 10/1 single sound - 20/1/0.2 dual sound
Out stage technology Solid State LDMOS
Vision / Sound amplification Common
Standards G, K, I, M
Sound transmission FM single sound - Dual sound coding IRT - NICAM 728
Harmonics and spurious emission In compliance with CCIR rec.
Intermodulation products from vision and sound < = 56dB
Frequency stability 2,5ppm (option 0,05ppm)
VISION SECTION
Video input BNC 75 W connector
Nominal input level 1Vpp ± 6dB
Return loss > = 30dB
DC Restoration Clamped to the blanking level without affecting the burst
White limiter At 90% picture signal without affecting the chrominance
Transmission characteristics
Sideband spectrum response According to the standard
Amplitude frequency response According to the standard
Group delay variation without receiver
pre-correction and TV demodulator in flat < = ± 35ns
Non linearity distortion (10 to 75% mod.) < = 5%
Differential gain (10 to 75% mod.) < = 5%
Differential phase (10 to 75% mod.) < = 5°
Signal to random noise ratio (weighted 0.2 to 5MHz) > = 60dB
Blanking level variation < = 2%
2T k factor < = 2%
SOUND SECTION
Nominal input level (± 50kHz dev.) -10 to +8dBm
Input impedance 600 W balanced
Pre-emphasis 50ms
Transmission characteristics
Amplitude-frequency response 40 to 15000Hz ± 0.5dB
Total harmonic distortion < = 0.5%
FM Signal to noise ratIO
(referred to ± 50kHz dev. f = 400Hz) > = 60dB (weighted)