Multiband Amplifire VS-88-Super

Amplifire VS-88

Product description

Multiband amplifiers are intended to amplify FM radio signals, TV signals in VHF, UHF (21-60 channels) and special UHF1 (21-35 channels), UHF2 (36-60 channels).

There is a possibility to adjust the gain of the amplifier in every sub-band by fine turning 10 dB regulators (7) and an additional 10 dB by switching switches (8) in every sub-band.

The amplifiers can provide power (+12 V) to external equipment through one UHF input connector (3). It is turned on/off by switch (11). Power feed for external equipment has short circuit and overload protection. In normal conditions indicator (6) glows green. If short circuit or overload conditions are detected – glows red.

The housing of amplifiers meets more stringent screening requirements according to EN50083-2, class A. The amplifiers are intended for indoor use only.

Safety instructions

Installation of the amplifier must be done according IEC60728-11 and national safety standards.

The amplifiers are powered from mains 230 V~. This voltage is dangerous to life. Any repairs must be done by a qualified personnel.

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 is 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.

The 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 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.

Do not insert any objects into ventilation openings.

The ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, table-cloths, curtains.

Mount the amplifier in vertical position with RF input connectors underneath. The amplifier must be fixed with steel screws

Ø 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.

Technical characteristics

Type			VS86	VS88
Gain	FM (88-108 MHz)		–	30 dB	30 dB
	VHFIII (174-230 MHz)		30 dB	30 dB	30 dB
	UHF (470-790 MHz)		30 dB	30 dB	3×30 dB
	UHF1/BIV (470-590 MHz)		30 dB	30 dB	–
	UHF2/BV (590-790 MHz)		30 dB	30 dB	–
Number of inputs			4	5	5
Noise figure, typical		VHF	< 6 dB
		UHF	< 8 dB
Maximal output level			IMD3=60 dB (DIN45004B) 115 dBµV, IMD3=60 dB 112 dBµV
Gain control			0 ÷ – 20 dB
Return loss			> 10 dB
Test point			– 30 dB
DC feeding for external			12 V 100 mA max.
Supply voltage limit values, power consumption*			200 V ÷ 250 V~ 50/60 Hz 7 W
Operating temperature range			-20o ÷ +50o C
Dimensions/Weight (packed)			135x180x52 mm/0.72 kg

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Astel Digital

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IF LINE AMPLIFIER