Technical characteristics/Технические характеристики/Características técnicas
Type**
Gain
VHFI (47-68 MHz)
Коэффициент усиления
Ganancia
FM (88-108 MHz)
VHFIII (174-230 MHz)
UHF (470-862 MHz)
Number of inputs / Число входов /
Número de entradas
Noise figure, typical / Коэффициент шума, типичный /
Figura de ruido, típica
Max. output level (DIN45004B), typical / Макс. вых. уровень,тип./
Máximo nivel de salida, típico
Gain control / Регулировка усиления/
Control de ganancia
Return loss / Возвратные потери /
Pérdidas de retorno
DC feeding for external /Питание внешних устройств/
Consumo externo DC**
Supply voltage limit values, power consumption /
Предельные значение напр. питания, потребляемая мощность /
Suministro límite de tensión de voltaje, alimentación***
Operating temperature range / Диапазон рабочих температур /
Temperatura de trabajo
Dimensions / Габариты /
Dimensiones
* two inputs of different gain/два входа с разным усилением/dos entradas de ganancia diferente
** type of amplifier with suffix -24 means +24 V 0.1 A external direct current consumption / тип усилителя с индексом -24
указывает, что питаниe внешних устройств +24 V 0.1 A постоянного тока / el modelo de amplificador con el sufijo -24
significa: consumo externo +24 V 0.1 A de continua DC
*** with/without external current loading / с/без внешней нагрузки по постоянному току / con/sin carga externa DC
Installation example/Пример применения/Ejemplo de instalación
Draugystes str. 22, LT-51256 Kaunas, Lithuania, tel.: +370 37 - 31 34 44, fax: +370 37 - 31 35 55
E-mail: sales@terraelectronics.com, http://www.terraelectronics.com
MA021
MA024
MA025
MA026
30 dB
30 dB
-
30 dB
30 dB
30 dB
22 dB/30 dB*
30 dB
2x34 dB
30 dB
2x34 dB
2
4
3
4
VHF< 5 dB;
UHF< 7 dB
115 dBµV
0 - -20 dB
> 10 dB
12 V
0.1 A max.
198-250 V~ 50/60 Hz 9 / 7 W
-20
÷ +50
C
o
o
128x201x53 mm
Multiband amplifiers MA021, MA024, MA025, MA026
Product description
Multiband amplifiers are intended for amplifying TV signals in VHF (1-5, 6-12 channels) and UHF (21-69 channels) bands.
There is a possibility to adjust the gain of the amplifier in every sub-band. The gain increases by turning regulators 6-9 clockwise.
The amplifier is provided for powering of external equipment from internal power supply (+12 V for MA0XX or +24 V for
MA0XX-24) through input connectors as well as a DC 2.1/5.5 connector 10. The power supply of external equipment has a
short circuit protection. If external equipment summed current is ≤ 0.1 A/12 V or 0.06 A/24V, an indicator glows green. When
current increases, the protection starts to operate and the voltage supply has beeing disconnected from external equipment.
In this case the indicator glows red.
Voltage supply of external equipment switches on separately for every input with a switch 14.
The amplifier is intended for indoor use only.
Safety instructions
Installation of the amplifier must be done according IEC60728-11 and national safety standards.
The amplifier is powered from the mains 230 V~. This voltage is dangerous to life.
Any repairs must be done by a qualified personnel.
Amplifier is double isolated from the mains 230 V~.
Do not remove the cover of the power supply section, without disconnecting the unit from the mains supply.
Do not plug the amplifier into the mains supply if the power cord or plug are damaged.
Do not plug the amplifier into the mains supply until all cables have been connected correctly.
To disconnect the amplifier from the mains completely, disconnect plug from the mains socket.
The mains socket must be easily accessible.
Amplifier shall not be exposed to dripping or splashing water and no objects filled with liquids, such as vases, shall be placed on it.
Avoid placing amplifier next to central heating components, near highly combustible materials and in areas of high humidity.
No naked flame sources, such as lighted candles, should be placed on amplifier.
If the amplifier has been kept in cold conditions for a long time, keep it in a warm room no less than 2 hours before plugging
into the mains.
The ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, table-cloths, curtains.
Do not insert any objects into ventilation openings.
Mount the amplifier in vertical position with input connectors underneath.
The amplifier must be fixed with steel screws Ø 4-4.5 mm. The screws are not included in a package.
From top, front and bottom of installed amplifier must be at least 10 cm free space.
External view
10
11
12
13
12V
TEST
RF
-30 dB
OUT
+
TERRA
Multiband amplifier MA024
Gain
>30 dB
Maximal output
level (DIN45004B)
115 dBµV
Power
consumption
230V 50/60Hz 9W
~
External
DC consumption
12V
0.1A max
+
UHF
UHF
VHF III
VHFI FM
470-862 MHz
470-862 MHz
174-230 MHz
47-108 MHz
On
Off
+12 V for preamplifiers
14
6
7
8
9
on
off
1
2
3
4
5
This product complies with the relevant clauses of the European Directive 2002/96/EC. The unit must be recycled
or discarded according to applicable local and national regulations.
Equipment intended for indoor usage only.
Equipment is double insulated from the mains, with functional earthing.
Functional earthing. Connect to the main potential equalization.
TERRA confirms, that this product is in accordance to following norms of EU: EMC norm EN50083-2, safety
norm EN60065 and RoHS norm EN50581.
TERRA confirms, that this product is in accordance with Custom Union Technical Regulations: "Electromagnetic
compatibility of technical equipment" CU TR 020/2011, "On safety of low-voltage equipment" CU TR 004/2011.
TERRA confirms, that this product is in accordance with safety standard AS/NZS 60065 and EMC standards of Australia.
Vers. 1.03