The R70501 SA-51 amplifier is designed for use in SMATV systems based on 5-input multiswitches. It has four satellite inputs and DVB-T/DAB/FM (Terr.TV) input. Placed on the input of the SMATV system, the device amplifies and equalizes the signals before further distribution.
Amplifier with power supply designed for 5-input multiswitches
High output level
Die-cast housing providing high screening efficiency (class A)
Power supply for other active devices in the distribution network
Power supply for a DVB-T preamplifier
Key features:
amplification and equalization of four SAT IF signals (polarization-band pairs),
amplification of DVB-T/DAB/FM signals,
compensation of coaxial cable attenuation,
power supply for other system components: LNBs, DVB-T preamplifiers, multiswitches, other amplifiers,
die-cast housing guarantying high screening efficiency (class A)
The use of SA-51/51D amplifiers allows for building large multiswitch systems distributing signals even to hundreds of subscriber outlets. The adjustment of the SAT IF and DVB-T/DAB/FM gain is made with dedicated switches. In comparison
with potentiometers, this solution increases stability of the adjustments. The die-cast housing provides high screening efficiency by preventing the penetration of interfering signals to the unit.
The device has push-pull amplifier in the terrestrial path and built-in switching-mode power supply. Aside from powering LNB and multiswitches, there is option of supplying power to a DVB-T preamplifier (12 VDC).
Specifications
Product typeAmplifier for multiswitch system
ManufacturerTERRA
NameSA-51
Type of systemSMATV system
Bus typeQuatro
Operating bandSATMHz950 2400
DVB-T/RadioMHz47 790
GainSATdB22
DVB-T/RadiodB22
Gain controlSATdB0...-15, step 1
DVB-T/RadiodB0...-15, step 1
Correction for cable attenuation patternSATdB0/3/5/7
DVB-T/RadiodB0/6/12/18
SeparationSATdB30
DVB-T/RadiodB30
Inner noisedB< 9
Max. signal level of terrestrial TV (IMD3=60 dB)dBµV109
Max. SAT signal level (IMD3=35 dB)dBµV114
Power supply for other devicestor syg. VV/A14/0.5
tor syg. HV/A18/2
terrestrial TV pathV/A12/0.1
Screening efficiency classA
Przejście DC w torze syg. HAmax. 2 (max. 1 A for 1 line)
Power supplyvoltageAC V230
Power consumptionW5 (without external load)
Operating temperature range°C-20...+50
Dimensionsmm284 × 135 × 52
Weight kg1
