Professional 4 Satellite If Distribution Smatv System Cascade Multiswitch 17 In 17 Out 12 Subscribers

Professional 4 Satellite If Distribution Smatv System Cascade Multiswitch 17 In 17 Out 12 Subscribers

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Product Description

Products Name: 4 satellite IF distribution SMATV system cascade multiswitch 17 in 17 out12 subscribers

Community TV installations intended to receive satellite television, often called SMATV systems (Satellite Master Antenna TV), seem to be the most effective and economical method of reception of satellite broadcasts, especially in densely populated urban areas. They allow to avoid a great number of individual dishes on the facades or roof of the building, and when the manager of the building does not permit to use them at all, such an installation is the only possible solution, often realized at the construction stage of the building.

with application of stand-alone and cascade multiswitches,
with application of first IF conversion,
with application of MPEG to PAL decoders,
with application of MPEG encapsulation with QAM modulation.

Cascade multiswitches 17 series has been designed for big SMATV systems installed in multi-family houses, small apartment houses etc. The biggest advantage of the new series is better - than in the case of the predecessor - separation between inputs. The multiswitches have built-in compensation of cable attenuation. This eliminates the impact of cable attenuation with increasing frequency, so we get the same signal levels in the entire band.

Key Feature:
16 satellite IF and 1 terrestrial TV inputsfor 12 satellite receiver.
16 satellite IF inputs selected by 13V\18V\22KHz and DisEqC 2.0 signal.
Low insertion loss, high isolation and return loss.
SAT-IF-PATHs to the subscribers are active and supplied by the receiver.
Sheet metal housing with plastic holder.
Design good for indoor usage.

Professional 4 satellite IF distribution SMATV system cascade multiswitch 17 in 17 out12 subscribers

Specification:

Item		Typical	QC Limit	Remark
Frequency Range		Terr.:47~862MHz SAT:950~2150MHz
Inputs		16 SAT+1 Terr.		F connectors
Outputs		12 Receiver		F connectors
Thru Loss	Terr.	4dB	5dB
	SAT	4dB	5dB
TAP Loss	Terr.	6dB	8dB
	SAT	2dB	4dB
Return Loss	Terr.	12dB	10dB
	SAT	12dB	10dB
Stop band attenuation	Terr.	28dB	25dB
	SAT	28dB	25dB
Isolation	H/V	30dB	25dB
	REC-REC	30dB	25dB
Power Adapter		IN:100~240V OUT:18V 2000mA
Dimensions (L,W,H)		362×208×42		mm

Application diagram of Professional 4 satellite IF distribution SMATV system cascade multiswitch 17 in 17 out12 subscribers

Remark:
1. The device distributes signals from four satellites and terrestrial television to up to twevle subscriber sockets. It has been designed for big hotel and big medium apartment buildings. We can therefore connect up to twevle single satellite receivers. If some receiver has a hard drive (PVR), its double tuner will need connection with two outputs of the multiswitch. Any unused output of the multiswitch must be terminated with 75 ohm resistor.

2. For cascadable solutions - larger systems and/or lower terrestrial signals (requiring to use external RF amplifiers) - we recommend high-quality gain multiswitches. A lot of information on designing large multiswitch systems has been collected in Professional multiswitch systems.

Maximum output level 85 dB of the terrestrial path means in practice that the input signals should not exceed 82 dB. Signals with a higher level may overdrive transistor switches, blocking satellite signal.

3. The multiswitch is suitable for indoor use only.

4. For the large scale multiswitch systems: it must use SMATV trunk amplifier BMS1717E.

5. Do not open the multiswitch; otherwise there is a shock hazard.
Be sure with sufficient earthing of the aerials and aerial feeds.

The production process of Professional 4 satellite IF distribution SMATV system cascade multiswitch 17 in 17 out12

At Broadvision, we offer our customers the ability to ship via professional freighter, Next Business Day, and Second Day. Shipping rates are simply calculated based on the total weight of the items in your order and that total shipping amount is incorporated into our shopping cart application. We see this as an advantage to our customers because our shopping cart reflects a "total cost of order" while shopping. Saturday delivery is available in some areas.

Multiswitch is an electronic device that allows for connection of any output to any of its input. It is a kind of switch that operates in 950-2150 MHz frequency range (or even to up to 2400 MHz). Connection of terrestrial TV signals (46 to 862MHz) is also possible. All the signals are separated at the outputs of subscribers' outlets.

Such an outlet has three outputs - one with satellite TV signal, to connect SAT TV receiver, second for TV set , and the third for FM stereo. The outlet must be transparent to DC voltage and control signals (DiSEqC and 22 kHz tone) from sat TV receiver. The sat receiver recognizes multiswitch as LNB converter and switching between its inputs is performed by changing voltage sent by the receiver (14V or 18V), presence or absence of 22 kHz signal or in the case of 9 inputs multiswitches - by DiSEqC signal.

The sales team of Broadvision Technology company:
Professional 4 satellite IF distribution SMATV system cascade multiswitch 17 in 17 out12 subscribers