This item does not come on when plugged in. So we are selling this item as non-working. For spares or repair.
I am only advertising this unit because they are rare and expensive when new. So probably worth fixing if you are into electronics repairs. But please note no returns or refunds. This is the only unit we have left.
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
