CAS 120/G - Satellite antenna KATHREIN - Free user manual and instructions

Brand	Kathrein
Model	CAS 120/G
Product Type	Offset parabolic satellite antenna
Diameter	1.2 m
Colour	Graphite (RAL 7012)
Reception Frequency Range	10.70 – 12.75 GHz
Antenna Gain (at 10.70-11.70 / 11.70-12.50 / 12.50-12.75 GHz)	41.5 / 42.15 / 42.5 dBi
Half-Power Beamwidth	1.43°
Cross-Polarisation Decoupling	>30 dB
Wind Surface Area	1.35 m²
Max. Allowable Wind Speed	157 km/h
Mast Clamp Range	50 – 90 mm
Elevation Adjustment Range	5° – 50°
Azimuth Adjustment Range	360° continuous
Dimensions (Width x Height x Protrusion)	1234 mm x 1570 mm x 1408 mm
Net Weight	18.3 kg
Gross Weight	29.0 kg
Reflector Material	Aluminium, powder coated
Feed Support Material	Galvanised sheet steel, powder coated
Multi-Feed Capability	Up to 3 LNBs for satellites 3°-4° or 6° apart
Optional Accessories	ZAS 120 azimuth/elevation clamp, ZAS 15 stub mast, ZAS 16 wall mount, ZAS 1218 multi-feed adapter plate
Vibration Immunity	ETS 300019-2-4, IEC Class 4 M5

Frequently Asked Questions - CAS 120/G KATHREIN

How do I mount the CAS 120/G antenna?

Use the ZAS 120 azimuth/elevation clamp (not included). Mount the clamp on a mast (50-90 mm diameter) and hook the prepared antenna onto it. Ensure the mast is upright and securely fastened. See the manual for detailed steps.

Can I use multiple LNBs with this antenna?

Yes, the CAS 120/G supports multi-feed configurations. You can install up to three universal feed systems (LNBs) for satellites 3°-4° or 6° apart. Use the markings on the adapter plate (positions 1-5) and the optional ZAS 1218 adapter for other spacings.

How do I align the antenna to a satellite?

First, set the elevation angle according to your location using the scale (10°-50°). Then rotate the antenna in azimuth (south +/-20°) until you get the strongest signal. Use a satellite meter or receiver for fine adjustment. For multi-feed, align to the weakest satellite.

What is the maximum wind load?

The antenna is rated for wind speeds up to 157 km/h. At 130 km/h (height ≤20 m), the wind load is 1296 N; at 150 km/h (height >20 m), it is 1776 N. The maximum load at 190 km/h is 2646 N. Always ensure the mast and mounting are suitable.

Do I need grounding for this antenna?

Grounding is required per DIN EN 60728-11 unless the antenna is more than 2 m below roof edge and less than 1.5 m from buildings. Use a ground conductor (min. 16 mm² copper) and connect to the building's lightning protection. Hire a qualified electrician.

What LNBs are compatible?

The antenna works with Kathrein universal feed systems such as UAS 571/572/584/585 and UAS 582. The figure of merit (G/T) varies by LNB and feed spacing. Follow the LNB manual for installation and polarisation settings.

How do I clean the antenna?

Clean the reflector and feed support with a soft cloth and mild detergent. Avoid abrasive cleaners or solvents that may damage the powder coating. Do not use high-pressure water. Inspect for damage after storms.

What is the warranty for corrosion resistance?

Corrosion warranty applies if the antenna is professionally assembled, not modified or damaged, and only genuine Kathrein accessories are used. Damage from force majeure or abrasive environments (e.g., sandstorms) is excluded. Keep your purchase receipt.

Can I install the antenna on a wall or roof?

Yes, but roof mounting requires compliance with EN 60728-11 and a bending moment ≤1650 Nm at the clamp. Use Kathrein accessories like ZAS 16 for walls or ZAS 03/04 masts for roofs. Avoid vibration-prone structures.

How do I dispose of the antenna at end of life?

Do not dispose as household waste. Follow the WEEE directive (2002/96/EC) – take the antenna to an official collection point for recycling of electronic equipment.

USER MANUAL CAS 120/G KATHREIN

d. Speisesystem (LNB)

PW _ NEU = PW _ TAB - V

■ Refl ector made of aluminium, powder coated
■ Feed system support and reflector rear part made of galvanised sheet steel, powder coated
■ Optimal electrical data combined with very compact mechanical dimensions due to off set feed
■ Items supplied: refl ector and feed system support,
- The tiltable multifeed mounting device allows optimum setting of the polarisation angle. In this way the feed systems can be positioned for feeding into secondary focal points, e.g. for multifeed reception
■ Without additional components, two universal feed systems to receive the signals of satellites 3° or 4° (e.g. ASTRA 19.2°/23.5°) or 6° apart (e.g. ASTRA/EUTELSAT-HOTBIRD) can be mounted on the boom

If the satellites are spaced at 6°, an additional feed system can be fitted in the middle (3 satellites at 3° spacing each). For other satellite spacings, the multifeed adapter plate ZAS 1218 (Order no: 204500011) is available (see „Optional accessories“ on page 11).
■ Additionally required for mounting: Azimuth/elevation clamp ZAS 120.

Intended Use

The CAS 120 parabolic antenna is intended solely for the reception of satellite signals and for use only as a domestic antenna.

DIN 4131 specifies that a domestic antenna should have no more than 6 m free mast length and a fixed-end moment up to 1650 Nm.

The antenna may be installed only in conjunction with the ZAS 120 clamp (part no. 218672). The ZAS 120 is not supplied with the parabolic antenna.

It is unsuitable for mounting on structures that are liable to vibration.

Make absolutely sure that the values for the maximum load listed in the Technical Data (on the last page) are complied with. If this load is exceeded, parts could break away!

The CAS 120 parabolic antenna is designed both for use with one feed system (LNB) for reception of the signals from one satellite position and also for use with two feed systems for multi-feed applications for reception of the signals from two satellite positions with 3°-4° or 6° satellite spacing.

Do not use the parabolic antenna for purposes other than those listed in this manual! Any use other than that specified above will void the warranty or guarantee.

In particular, never

• modify any of its components or
- fit any components other than those expressly intended by the manufacturer for use with the antenna.

Breach of these rules may lead to the antenna no longer being sufficiently stable and safe!

Optionalaccessories

■ ZAS 120 Azimuth/Elevation support (BN 218672)
■ Stub mast ZAS 15 (BN 218603)
■ Wall mounting ZAS 16 (BN 218606)
■ ZAS 1218, order no. 204500011 multi-feed adapter plate Without notches for any satellite spacing

Basic Safety Instructions

Before you install, connect or use the parabolic antenna, make sure that you comply with the instructions in this manual! If you disregard these instructions,

• malfunctions may arise, creating risks to your life and health,
  • defects in the installation or the connection may cause damage to the antenna or to the attachment point,
• the manufacturer will not accept liability for malfunctions and damage arising!

- Under no circumstances install antennas in the vicinity of overhead power cables, otherwise the absolutely essential clearance requirements may no longer be satisfied. Maintain a clearance of at least 1 m from all other electrical devices in all directions!

If you or metal parts of the antenna touch any electrical device there is a serious risk of a fatal electric shock!

• Never work on antenna systems during a thunderstorm or when a thunderstorm is approaching. There is a risk of a fatal electric shock!
• Never install antennas on buildings with easily flammable roof coverings such as straw, reeds or similar materials! Otherwise there is a risk of fi re due to atmospheric over-voltages (static charges) or lightning discharges (e.g. during thunderstorms).
• The installation operations described here assume good craftsmanship capabilities and knowledge of the behaviour of materials under the effects of wind. Therefore if you do not possess the required skills, have this work performed by a specialist.
• The person doing the work must wear strong non-slip footwear, must not be liable to dizziness, must be able to move around safely on the roof and have a secure standing and attachment position (if necessary, wear a safety harness when on the roof).
• Make sure that the roof is able to bear your weight. Never walk on fragile or unstable surfaces! In case of doubt, contact a qualified specialist dealer or specialist roofing contractor to find an appropriate installation location.
• Do not go on to roofs or other high places without a correctly attached safety harness that is in good condition. Otherwise use a work platform.
• Ladders or other means of climbing must be in faultless condition (dry, clean and non-slip). Never build any irresponsible "scrambling towers"!
• If there is a risk that passers-by may be injured by items falling from above during installation, you must close off the risk area using barriers! Make sure that no-one is underneath the installation location.

Risk of death or injury due to falling from the roof, falling through the roof and falling parts, plus the possibility of damage to the roof.

• The respective national safety regulations and current standards such as DIN EN 60728-11 should be complied with.
• Any other use or failure to comply with these instructions will result in voiding of warranty coverage.

When working on antenna systems, please remember your duty of care towards your fellow human beings!

Keep the manual for any questions that arise later, and if the building passes to another owner, pass it on to the new owner!

Selecting the Installation Site

It is essential to select the correct installation site. This determines whether your parabolic antenna can be erected safely and perform to its optimum capabilities.

When selecting the installation site, take account of special features of the structure of the building. If the installation is at the edge of the roof or the building or on a cylindrical structure, DIN 1055, parts 4 and 4131 specifies the increased wind and vibration loadings that should be allowed for. The dynamic properties of the antenna and the structure can mutually influence each other and cause detrimental changes.

Disregarding these considerations can lead to the maximum load or vibration fatigue stress listed in the Technical Data being exceeded. The parabolic antenna need not necessarily be mounted on the roof, since the requirement is not height as such but an unobstructed "view" of the satellite. For this reason, an appropriate installation site might also be found for instance in the garden, on the terrace, on the face of the building or on a garage.

In fact if other sites are possible, it is better to avoid the roof. This will result in less work for you and will reduce the hazards associated with installation work on the roof!

- For good reception, an unobstructed "view" to the south (+/-20°) must be ensured, at an elevation of about 30°. The following satellites are then available for selection:

1 TÜRKSAT ^* 42° Ost 7 EUTELSAT W 1 10° Ost

2 ASTRA 2-Gruppe*) 28,2° Ost 8 EUTELSAT W 3 7° Ost

3 ASTRA 3-Gruppe 23,5° Ost 9 THOR 1° West

4 ASTRA 1-Gruppe 19,2° Ost 10 Telecom 5° West

5 EUTELSAT W 2 16° Ost 11 HISPA-Sat 30° West

6 EUTELSAT 13° Ost HOTBIRD

- Do make sure that there are no obstacles between the parabolic antenna and the respective satellite (such as trees, roofs, house eaves or other antennas). Such items can impair reception to the extent that during unfavourable stormy weather the signal is lost altogether.

*) The reception is dependent upon the respective location and the satellite coverage zone

Installing the Antenna

When installing the antenna carrier (mast or wall boom), ensure that it is standing upright. Otherwise, there may be problems with the alignment of the antenna to the satellites.

a. Requirements on the Antenna Carrier

• Use only supports or support tubes that are specially designed for installation of antennas. Other tubes generally do not have the strength required to withstand the forces of wind and weather.
• For securing the antenna, select a tube diameter between 60 and 90 mm, with a wall thickness at least 2 mm. Kathrein recommends the following components for installation:

\~ On level ground: Stub mast ZAS 15
\~ Wall mounting: Wall bracket ZAS 16
\~ On the roof: Mast tube ZAS 03 or ZAS 04

If you do decide in favour of roof mounting, you must ensure that the installation complies with EN 60728-11, which specifies a maximum permissible bending moment of 1650 Nm at the clamping point.

This translates into the maximum permissible mast lengths for wind loadings shown as cases 1 and 2 in the diagram on the right.

If a moment of 1650 Nm might be exceeded at the clamping point, for instance because of a longer mast with additional antennas mounted on it, EN 60728-11 requires that a structural engineer should assess the installation to provide verification of safety of the installation and/or the structure of the building.

	Wind load 1(up to 20m above ground)	Wind load 2(>20m above ground)
Lmax	1.1 m	0.75 m

If you arrange the structure differently you must calculate wind loading and bending moment at the clamping point as specified in DIN EN 60728-11 (or have a specialist do the calculation for you).

b. Fitting the Clamp (ZAS 120)

• Attach the ZAS 120 azimuth/elevation clamp as shown in the diagram on the right.
• Further instructions for attaching the ZAS 120 clamp can be found in the instructions supplied with the clamp.
• Then use the hexagon key to tighten any two of the four bolts finger-tight.
• If you intend to fi t the antenna to a position lower than the end of the mast, you must fi rst unscrew the mounting bracket Ⓦ from the clamp.

c. Preparing the Antenna

• Unscrew the four screws from the retaining batten. Do not yet remove the cardboard surround, until further assembly steps. This protects the feed system support. Swing the boom out until it lies on the end of the cardboard.
• Lift up the parabolic reflector. This allows the boom to swing round further, until it registers in the locking point V.
• Tighten the four bolts S (size 19). Tightening torque 37–43 Nm.
• Hook the prepared antenna into the ZAS 120 clamp.

d. Feed system (LNB)

The feed system(s) and instructions for their installation are not included in the scope of supply of the parabolic antenna.

For more detailed information on their correct installation please refer to the manuals supplied with the respective feed system.

Using the multi-feed adapter plate on the carrier arm you can install one, two or three Kathrein universal feed systems. The markings on the adapter plate are as follows:

• 3 the installation position for one single feed system,
• 2 and 4 the installation positions for two multi-feed feed systems at 3° - 4° satellite spacing,
• 1 and 5 the installation positions for two multi-feed feed systems at 6° satellite spacing. With positions 1 and 5 occupied, a feed system can also be mounted in the middle at position 3 (3 satellites at 3° spacing)

- Example for the installation positions for a multi-feed application with 3° - 4° satellite spacing:

Item 2 Item 4

ASTRA 19.2° East EUTELSAT 16° East

ASTRA 23.5° East ASTRA 19.2° East

EUTELSAT 16° East EUTELSAT 13° East

EUTELSAT 13° East EUTELSAT 10° East

EUTELSAT 10° East EUTELSAT 7° East

Tip

For multi-feed applications the antenna should be aligned towards the satellite which is transmitting the weakest signal.

- Example for the installation positions for a multi-feed application with 6° satellite spacing:

For multi-feed applications the antenna should be aligned towards the satellite which is transmitting the weakest signal.

e. Polarisation pre-setting

• One feed system (monofeed)

Set the polarisation angle on the feed system according to the value in the table for your location and the position of the satellite from which the signal is to be received (see LNB user instructions). For this the tiltable adapter plate remains in the zero position (see diagram on the right).

• Multiple feed systems (multi-feed)

To optimise the multi-feed reception, the tiltable support "H" should be tilted to the angle "V" according to the table attached to this document.

The polarisation angle on the respective feed system must be set according to the following formula.

PW _ NEW = PW _ TAB - V

PW_NEW = polarisation angle to be set

PW_TAB = polarisation angle of the selected satellite according to the table in the LNB user instructions

V = setting angle of the support according to the selected satellite combination of the attached table

With the settings and the calculation, pay attention to preceding signs!

In order to be able to tilt the support you must first use the hexagon key to slacken the bolt shown arrowed in the illustration on the right.

Direction of rotation for polarisation angle (PW)

Direction of rotation for angle V for tilting part

Aligning the Antenna

The antenna must be exactly aligned towards the satellite in respect of both the direction (azimuth) and also the inclination (elevation). For multi-feed applications the antenna should be aligned towards the satellite which is transmitting the weakest signal.

a. Adjusting the inclination (elevation)

• When tilting the antenna about the elevation axis, the 6 bolts A must be slack. Slacken them using the hexagon key supplied with the parabolic antenna.
• If whilst performing coarse or preliminary setting of the elevation angle you tilt the antenna slightly by hand you can turn the nut B (for fi ne adjustment) more quickly.
• Now adjust the inclination (elevation) - the exact elevation angle for your location can be found in the manual for the feed system (LNB). Set this angle according to the scale (10° to 50°) . When doing this, the relevant scale graduation on the clamp must be in line with the edge C of the refl ector retaining plate.
• When doing this, tighten the bolts A slightly.

b. Setting the Direction (Azimuth)

If you yourself are unable whilst performing the adjustments to read the results of the alignment work on an antenna meter or screen connected to the satellite receiver, you may need an assistant for the following steps. The precise alignment of the antenna can be achieved only if a digital antenna meter is used. Ask your dealer about this.

• Set the satellite receiver to a known channel so that you can check that you have really "locked on" to the desired satellite.
• Turn the antenna so that it roughly faces south. Then slowly twist the antenna about its mast axis to left and right until the best reception is obtained for the selected channel.

c. FineAdjustment

• Once again slacken the bolts A on the inclination scale and tilt the antenna lightly upwards and downwards until either the antenna meter shows the strongest antenna signal or visual assessment is judged to achieve the best picture. To do this, tilt the antenna far enough upwards and downwards to get to the limits when the fi rst "little fi sh" (analogue) or "little blocks" (digital) appear on the screen. Position the antenna midway between the two limit points.
• Now, alternately correct the direction (azimuth) and inclination (elevation) until the measured results or the picture quality show no further improvement.

Note: Tightening the wing nuts at the clamping pieces can cause the antenna to turn slightly! You should allow for this at the fi ne adjustment stage (and, if necessary, make use of it when starting the adjustment operation all over again).

If necessary, once again optimise the polarisation angle(s) of the feed system(s) and the angle of the tiltable support for securing the feed system(s).

d. Finally Tightening the Antenna Clamps

• Fully tighten all bolted connections. Finally check once again that all the bolted connections are secure.
• Attach the cables using cable ties to secure them at any points where there is a risk they may chafe and suffer damage in the wind.

Antenna grounding/lightning protection

Because of the serious consequences if the work is not done properly, grounding and lightning protection work may be performed only by specially trained electricians.

Never perform grounding and lightning protection work if you are not a specialist with the appropriate skills!

The instructions printed here are not an invitation to non-specialists to perform grounding and lightning protection work on their own account; they are meant solely as additional information for the specialists whom you employ!

The antenna must be erected to DIN EN 60728-11 and grounded as specified. The grounding requirement is inapplicable only to those antennas:

• more than 2 m below the edge of the roof
• and at the same time less than 1.5 m from buildings.

For grounding, the mast must be connected by means of a suitable ground conductor to the lightning protection system of the building, using the shortest route. If no lightning protection system is available: to the building's ground conductor.

Connection to the lightning protection system may be made only by a qualified lightning protection system installation engineer.

a. Suitable as ground conductors are

- a single solid wire with a cross-section of at least 16 mm² copper, at least 25 mm² aluminium or at least 50 mm² steel.

b. Unsuitable as ground conductors are

– the outer conductor of the antenna cable
- metallic domestic installations (such as the metal pipework of a water or heating system), since the permanence of the electrical connection cannot be guaranteed
- or the shielding conductor or neutral conductor of the mains power supply.

c. Routing of ground conductors

• Antenna cables and grounding conductors must not be routed through rooms used for storing easily fl ammable substances (such as hay or straw) or in which an explosive atmosphere can develop (such as gases, vapours).
• If the parabolic antenna is used in an integrated antenna system (e.g. a distribution system), the grounding measures must also be designed in such a way that grounding protection is still maintained if individual units are removed or replaced.

Hazards may be caused not only by thunderstorms (lightning), but also by static charges and short circuits in the connected

units.

For safety reasons therefore in general for all antenna systems an equipotential bonding conductor of 4 mm ² copper should be provided.

The cable screens of all coaxial antenna downlink cables must be connected to the mast with an equipotential bonding conductor.

Technical Data

Type CAS 120/W				CAS 120/W no logo	CAS 120/G	CAS 120/G no logo	CAS 120/R
Part no. 20010008 20010009 20010010 20010011 20010012
Diameter m 1.2
Colour			White (RAL 9002)		Graphite (RAL 7012)		Red brown (RAL 8012)
Reception range GHz 10.70-12.75
Antenna gain at 10.70-11.70 GHz/11.70-12.50 GHz/12.50-12.75 GHz		dBi 41.5/42.15/42.5
Half-power beam width1)		° 1.43
Figure of merit2) central feed system	UAS 571/572/584/585 UAS 582	dB/K			22.0/23.0
					21.3/22.2
Figure of merit2) Feed system spacing 3°-4°	UAS 571/572/584/585 UAS 582	dB/K			21.8/22.8
					21.2/22.0
Figure of merit2) Feed system spacing 6°	UAS 571/572/584/585 UAS 582	dB/K			21.5/22.6
					21.0/21.8
Cross-polarisation decoupling dB			>30
Wind surface area		m2	1.35
Vibration immunity			ETS 300019-2-4 (12.94) IEC Class 4 M 5
Windload 1 for an installation height up to 20 m above ground for a wind velocity up to 130 km/h at a dynamic pressure 800 N/m2 according to EN 60728-11		N	1296
Windload 2 for an installation height higher than 20 m above ground (factor 1.37) for a wind velocity up to 150 km/h		N	1776
Maximum load at a dynamic pressure 1900 N/m2 (190 km/h)		N	2646
Max. allowable wind speed		km/h	157
Mast clamp range		mm	50-90
Setting range Elevation/Azimuth °		5-50/360
Dimensions width		mm	1234
Dimensions height max.		mm	1570
Dimensions protrusion max. (from mast centre without feed system)		mm	1408
Packing unit dimensions		mm	1330 x 1330 x 250
Weight approx. net/gross		kg	18.3/29.0

1) At mid-band
²⁾ G/T at 11.3/12.5 GHz

All figures are typical values!

If the maximum load is exceeded, parts could break away!

Warranty conditions for the antenna corrosion resistance

Important instructions relating to the warranty conditions for the corrosion resistance of Kathrein offset parabolic antennas:

- The antenna must be assembled and mounted professionally, following the steps described in the enclosed instruction sheet.

• The antenna must not be modified (e.g. by drilling).

- The antenna must not be damaged mechanically (e.g. deformation, deep or extensive damage, or abrasion of the powder coating and surface coating).

- The antenna must not be damaged due to exposure to chemicals (e.g. solvents, lacquers, detergents or the like).

- Only genuine Kathrein accessories may be used for the antenna.

These warranty conditions are effective from the date of purchase.

Only the original sales slip is acceptable as proof of purchase for warranty claims.

Furthermore, corrosion resistance is not warranted for the consequences of force majeure, e.g. lightning strike, or if the antenna is used in regions where frequently occurring, abrasive weather conditions may wear off the protective coating within a short period of time (e.g. sandstorms).

Waste Disposal

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

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