VOS 40/F - TV amplifier KATHREIN - Free user manual and instructions

Product type	TV amplifier
Brand	Kathrein
Model	VOS 40/F
Dimensions (W x D x H)	Approx. 85 x 55 x 25 mm
Weight	Approx. 90 g
Power supply	5 V / 100 mA mains adapter (not included)
Power consumption	< 0.5 W
Frequency range	VHF (174-230 MHz) / UHF (470-862 MHz)
Gain	Approx. 15 dB (adjustable)
Noise figure	< 4 dB
Impedance	75 Ω (balanced)
Input/output connectors	2 × F (female)
Number of outputs	1 (with possible remote power feeding)
Main functions	DTT signal amplification, cable loss compensation, reception improvement
Care and cleaning	Clean with a soft, dry cloth. Do not use liquids or abrasive products.
Safety	Do not open the housing. Disconnect before cleaning. Only use the recommended adapter.
Spare parts and repairability	No user-serviceable parts. Contact a qualified technician or Kathrein customer service.
General information	Compact amplifier for indoor installation. Suitable for digital DVB-T/T2 signals.

Frequently Asked Questions - VOS 40/F KATHREIN

How to connect the Kathrein VOS 40/F?

Connect the antenna cable to the F input of the amplifier, then a second cable from the output to your TV or receiver. Connect the mains adapter (not supplied) to the DC socket.

What power supply to use for the VOS 40/F?

Use a 5 V DC mains adapter, minimum 100 mA, with a 2.1 mm plug (center positive). Do not use a higher voltage supply.

Why is the picture still jerky after installation?

Check that the gain is not too high (signals too strong): use the adjustment potentiometer to lower the gain. Also make sure the connections are tight.

Can I use this amplifier outdoors?

No, the VOS 40/F is designed for indoor installation only. Exposing it to moisture or weather would damage it.

How to clean the amplifier?

Disconnect the device, then wipe it with a soft, dry cloth. Never use liquid or abrasive products.

What type of cable is recommended?

Use a good quality 75 Ω coaxial cable, preferably with compressed F connectors. Avoid cables that are too long (max 10 m after the amplifier).

The amplifier LED does not light up, what to do?

Check that the mains adapter is properly connected and functional. Test the electrical outlet. If nothing changes, the amplifier may be defective.

Can I amplify the signal for multiple TVs with one amplifier?

The VOS 40/F has only one output. For multiple TVs, you must add a splitter after the amplifier, but this reduces the signal. A multi-output amplifier would be more suitable.

Where can I download the full manual?

The manual is available free of charge in PDF format on the site notice-facile.com. Use the 'Download' function on the product page.

How to adjust the gain on the VOS 40/F?

The gain is adjusted using a small potentiometer accessible on the housing. Turn it gently to adjust the level until you get a stable picture without snow.

USER MANUAL VOS 40/F KATHREIN

Rückweg-Verstärker

• House connection amplifiers for modern HFC networks
• Integrated power supply unit
• Die-cast housing with F connectors
• LED to indicate operation mode
- Gain with interstage attenuation is switchable using jumpers (delivery condition: high gain)
- VOS 40/F: Interstage equaliser (6 dB) can be connected using jumpers (Pre-emphasis)
- Return path optional, can be configured as required:
5-30 MHz with VGR 28/30
5-65 MHz with VGR 28/65
(delivery condition: without return path amplifier, with jumpers)
- Integrated, variable attenuator and variable equaliser
- Test socket on output -20 dB (with directional coupler)
- Complies with: EN 60728-11, EN 50083-2 and EN 60065
- For indoor installation

- Test socket on input -20 dB (can be connected using jumpers) for return path levelling

- The amplifiers comply with the requirements in the Low-Voltage Directive 2006/95/EEC and EMC Directive 2004/108/EEC applicable at the time of shipping.

Type	VOS 30/F	VOS 40/F
Order no.		20910002	20910012
Forward path
Frequency range	MHz 47 (85)-862
Gain (switchable)	dB 24/30 34/40
Amplitude ripple	dB +/- 1.5
Adjustable attenuator setting range	dB 0-20
Equaliser setting range	dB 0-20
Interstage adjustable attenuator setting range (can be switched with jumpers)	dB 0/6
Interstage equaliser setting range (can be switched with jumpers)	dB - 0/6
Maximum operating level 11 (60-dB CTB/CSO) - 1 at - with 6-dB interstage pre-emphasis	dBμV	98/100	104/107106/107
Noise figure	dB 7/6
Number of outputs		1
Return path
		For data see VGR 28/xx
General
Impedance input/output	Ω 75
Return loss input/output 21	dB 14
RF connections		F connector
Test socket output with directional coupler (5-862 MHz)	dB -20
Test socket output return path (5-65 MHz)	dB -20
Supply voltage	VAC	198-253
Power consumption (without/with return path amplifier)	W	7/9	6/7
Indication of operation mode		LED green
Protection class		II
Protection class (in accordance with EN 60529)		IP 50
Temperature range	°C	-20 to +55
Dimensions	mm	184 x 134 x 63
Packing unit/weight	pc./kg	1 (10)/1.6	1 (10)/1.4

In accordance with EN 60728-3; CENELEC channel plan 42 carriers

2) In accordance with EN 60728-3 (category C); from 40 MHz 14 dB-1.5 dB/octave, but 10 dB

Return path amplifier

• Please order separately
• Variable equaliser and variable attenuator (delivery condition: max. attenuation) on the output

Type VGR 28/30 VGR 28/65
Order no. 20910008 20910009
Frequency range 5-30 5-65
Gain dB 28
Max. output level 60-dB-IMA3 dBμV 118
60-dB-IMA2 dBμV 112
Input level density (CINR: 55 dB) dBμV/Hz Type -6
Dynamic range (input level density)	dB	Type 19
Noise figure	dB	5
Gain setting (on the output) 1)	dB	0-20
Equalisation setting (on the output)	dB	0-20
Dimensions (W x H x D)	mm	130 x 17 x 38
Packing unit/weight	pc./kg	1 (10)/0.08

¹⁾ In the delivery status the adjustable attenuator is set to max. attenuation.

Note: The purpose of this graphic is to explain the terms "input level density" and "dynamic range". It is not possible to derive any electrical data from the graphic. See also: EN 60728-3 (point 4.7)

Block diagram: VOS 40/F

Installation: Only by authorised persons

Unplug from the mains before installation. The safety regulations in accordance with EN 60728-11 and EN 60065 must be observed!

Permissible installation

Caution! Do not mount on easily inf1 ammable materials!

a) Clearances to containing surfaces: ≥ 150 mm b) Clearances to containing surfaces: ≥ 50 mm

Basic safety precautions

Caution!

The amplifier supply voltage is 230 V AC and is dangerous on direct contact!

• Do not touch live parts
• The power plug must be easily operable as the means of cutting power to the amplifier, meaning the wall outlet must be close to the amplifier and easily accessible
• The power must be cut when installing or removing the amplifier
• The amplifier must not be operated without the standard power supply protective cover fitted. The cover must be closed

Controls and plug-in modules

Electronic equipment is not domestic waste - in accordance with directive 2002/96/EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL dated 27 ^th January 2003 on used electrical and electronic appliances, it must be disposed of properly.

At the end of its service life, take this unit for disposal to an appropriate official collection point.