Installation

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5. Installation

5.1. Line of sight test

Before you install the device to a mast tube, verify visually that the view in direction of the remote unit is unobstructed. Watch out for these obstacles in particular:

  • Free Fresnel zones. Signal needs space wider than is the diameter of the antenna.

  • Trees at the lower end of the Fresnel zone. They will be taller in a few years.

  • Possible building development.

  • Objects in the close proximity of the antenna such as edges of other antennas, their mounting racks, edges of the roof.

5.2. Antenna mounting

5.2.1. Mounting methods

  • according to the method of mounting on the mast tube

    • right-side mounting

    • left-side mounting

  • according to the method of mounting the FOD unit – antenna polarization

    • horizontal mounting

    • vertical mounting

       In both cases mount the unit with the connectors facing downwards at an angle.

Left-side mounting – horizontal polarization

Fig. 5.1: Left-side mounting – horizontal
polarization

Left-side mounting – vertical polarization

Fig. 5.2: Left-side mounting – vertical
polarization

Right-side mounting – horizontal polarization

Fig. 5.3: Right-side mounting – horizontal polarization

Changing the mounting method

Antenna bracket is supplied as standard partly assembled, and ready for right-side mounting.

On changing the Jirous antenna bracket for left-side mounting the adjustment bolt (part No. 11) and swivel bolt (part No. 12) need to be unscrewed, then shift the bracket body (part No.13) to the other side of clamp plate (part No. 4), (do not turn upside down) and then insert bolt (part No. 12) into the second hole on the mounting plate holder and through the same hole on the clamp plate and secure in place with the nuts. The adjustment bolt (item No. 11) and nuts (item No. 9) are switched to the other side of the clamp plate (part No. 4). It is also necessary to switch the hanging bolt (part No. 7) on the mounting plate (part No. 5) to the second hole so that after switching sides with the antenna it is on the top again.

On changing the Arkivator type antenna bracket for left-side mounting the adjustment pin (part No. 17) needs to be unscrewed and switched to the other side of the bracket body (part No.3) and clamp plate (part No. 4). It is also necessary to switch the adjustment bolt (part No. 21) and U-plate (part No. 13) to the other side of the bracket body (part No.3). This ensures that there is still good access to the adjustment elements for changing the direction of the antenna when mounted on this opposite side.

In the case of the antenna when changing the method of mounting from right-side to left-side it is only necessary to change the eye hook on the top and rotate the plastic cover of the antenna. This is not only important from an aesthetic point of view, so that the RACOM logo is not upside down, but also because there is a discharge channel on the lower edge of the dish (except for ø380 mm dishes).

When changing the polarization from horizontal to vertical only the FOD unit needs to be turned through 90° around the central antenna pin by unscrewing the four bolts on the dish using a No. 6 Allen key. (or on the reducing crossplate (part No. 7) for the Arkivator type antenna)

5.2.2. Mounting the FOD unit on the antenna

RAy microwave bridge equipment is generally supplied as several component parts packaged separately in a box.

  • Two ø38 and 65 cm Jirous parabolic antennas or ø30, 60 and 120 cm Arkivator antennas depending on the parameters of the bridge.

  • Two brackets for mounting the antenna to the mast.

  • Two FOD stations, each separate in a box, in a single package.

  • Other accessories based on the order placed (for more detailed information see chapter Section 3.6, “Accessories”)

When ordering a RAy microwave bridge there is a choice of antennas from two manufacturers to be connected to the RACOM FOD unit.

Mounting the FOD unit on the Jirous antenna

A No. 17 spanner and a No. 6 Allen key are required for mounting the mechanical parts of the antenna. Spanner No. 17 serves for precisely setting the direction of the antenna. Both spanner and key can be found in the RAy Tool set for installing RAy microwave bridges.

Close up image of the mounted bracket showing numbered parts

Fig. 5.4: Close up image of the mounted bracket showing numbered parts

  1. Prepare the antenna bracket based on the diameter of the mast tube. For smaller diameters face the bent part of the saddle plate (part No. 3) to the inside. For larger diameters to the outside. Screw the bolts (part No. 1) into the clamp plate (part No. 4) so that they protrude approx. 1 cm through the clamp plate. Clamp the saddle plate to the mast by tightening the nuts (part No. 2) on the bolts.

    Position of the saddle plate for ø 40–80 mm

    Fig. 5.5: Position of the saddle plate for
    ø 40–80 mm

    Position of the saddle plate for ø 65–115 mm

    Fig. 5.6: Position of the saddle plate for
    ø 65–115 mm

  2. Slide the antenna bracket onto the mast tube and clamp to the mast by tightening the nuts.

    Attaching the bracket to the mast tube

    Fig. 5.7: Attaching the bracket to the mast tube

  3. The second part of the bracket – mounting plate (part No. 5), is screwed to the antenna dish with three bolts (part No. 6). Screw the eye hook into the upper threaded hole of the dish to ease handling of the dish during installation. The position of the eye hook on the dish and hanging bolts on the plate change according to the type of installation, see Section 5.2.1, “Mounting methods”.

    Dish without mounting plate

    Fig. 5.8: Dish without mounting plate

    Dish with mounting plate

    Fig. 5.9: Dish with mounting plate

  4. Screw the hanging bolt (part No. 7) into the upper hole of the mounting plate so that the antenna can be hung on the mounting plate holder. Hang the antenna on it and tighten the lower bolt. (part No. 8)

    Hanging the bolt on the holder

    Fig. 5.10: Hanging the bolt on the holder

    Correct position of the mounting plate

    Fig. 5.11: Correct position of the mounting plate

  5. Tighten both bolts to the plate before continuing with installation to prevent any unnecessary movements of the whole equipment. Before precisely adjusting the vertical direction of the antenna upon completing installation it will be necessary to unscrew them again as the lower bolt passes through the adjustment block and the upper one serves as the axis of rotation.

    Tightening the upper bolt to the mounting plate

    Fig. 5.12: Tightening the upper bolt to
    the mounting plate

    Tightening the lower bolt to the mounting plate

    Fig. 5.13: Tightening the lower bolt to
    the mounting plate

  6. Before installing the FOD unit on the antenna first unscrew the 4 bolts on the back of the antenna enough so that the unit can be slid on to them. Then check whether the “O” ring is correctly fitted on the antenna pin, and make sure it is not damaged and has been lubricated with grease – see Section 5.2.3, “Lubrication and preservation of the antenna pivot”. Then remove the protective plastic cover from the central pin of the antenna and fit the FOD unit to it carefully so as not to damage the “O” ring. Secure it in place with the four bolts. Carefully ensure the correct polarization of the antenna – see Section 5.2.1, “Mounting methods”. Finally tighten the bolts with a No. 6 Allen key.

    Dish before installing the FOD unit

    Fig. 5.14: Dish before installing the FOD unit

    Tightening bolts on the FOD unit

    Fig. 5.15: Tightening bolts on the FOD unit

  7. The precise horizontal direction the antenna is pointing in can be adjusted using the bolt with two nuts (part No. 9). Once the direction has been set the antenna is fixed in place by tightening the nuts against the bracket to prevent further movement of the antenna. The vertical direction the antenna is pointing in can be adjusted by turning the fine adjustment bolt (part No. 10) by the bracket mounting plate. After selecting the correct direction the position is secured by tightening the bolt – see point e (part No. 7 and 8). The correct position in both directions is found by monitoring RSS – voltmeter, or with an audible alarm (if equipped) – see Section 5.5.2, “Antennas directing”.

    Horizontal adjustment of the antenna direction

    Fig. 5.16: Horizontal adjustment of the
    antenna direction

    Vertical adjustment of the antenna direction

    Fig. 5.17: Vertical adjustment of the
    antenna direction

  8. After pointing the antenna in the right direction tighten the bolts on the bracket on the axes of rotation (part No. 11 and 12). Then check again that all other bolts have been sufficiently tightened. We can now proceed to connecting the FOD unit to the user network.

    Tightening the axis at the fine adjustment bolt

    Fig. 5.18: Tightening the axis at the fine
    adjustment bolt

    Tightening the axis at the bracket

    Fig. 5.19: Tightening the axis at the bracket

Mounting the FOD unit on the Arkivator antenna

Installation of a RAy microwave bridge with an Arkivator type antenna is very similar to the installation described above, and is clear from the following images. The tools required for installation can be found in the RAy Tool kit for installation of RAy microwave bridges. No. 13, 16 and 17 spanners and No. 4 and 6 Allen keys are required for installation. For an antenna with a nominal diameter of 120 cm a No. 14/24 double open ended spanner, supplied with the antenna.

Installation diagram for the Arkivator antenna, 30 and 60 cm

Fig. 5.20: Installation diagram for the Arkivator antenna, 30 and 60 cm

Installation diagram for the Arkivator antenna, 99 cm

Fig. 5.21: Installation diagram for the Arkivator antenna, 99 cm

The antenna bracket (part No. 3 and 4) is supplied assembled as per the following image. The bracket is installed on the mast tube in a similar way to that of the Jirous antenna (point a). The bracket is ready for tube diameters up to 115 mm. The bolts (part No. 6) should be screwed to the clamp plate (part No. 4) in such a way that the end of the bolt protrudes approx. 6-10 mm through the other side of the clamp plate. Saddle plates (part No. 5) are then clamped against the mast tube by tightening nuts (part No. 7).

[Warning]Warning

Before mounting the adapter (part No. 25) to be removed the green foil from the antenna (part No. 1). This film covers the transport of the center hole in the waveguide.

After mounting the bracket on the mast tube bolt the bent plate (part No. 2, for Arkivator 30 and 60) or (part No. 30, for Arkivator 99) to the bracket. The actual antenna (part No. 1) is then bolted to this plate.

Arkivator antenna bracket

Fig. 5.22: Arkivator antenna bracket

Bracket on the mast

Fig. 5.23: Bracket on the mast

A reducing adapter (part No. 25), a reducing crossplate (part No. 21) and sleeves (part No. 22) are used for mounting the FOD unit (part No. 20) on the antenna. During installation do not forget “O” rings (part No. 26 and 27) and to lubricate “O” ring (part No. 27), see Section 5.2.3, “Lubrication and preservation of the antenna pivot”.

Bolt (part No. 14) serves for accurately setting the vertical direction of the antenna. When setting the direction release bolt (part No. 12 and 13), and then tighten it again once you have the correct position. The nuts on bolt (part No. 10) serves for setting the horizontal direction. Once the direction is set these nuts (part No. 11), pivot bolt (part No. 9) in the hanging eye of bolt and two pivot bolts (part No. 8) where the tilt bracket, need to be tightened.

30 and 60 cm diameter Arkivator antenna

Fig. 5.24: 30 and 60 cm diameter Arkivator antenna

Installation diagram for the Arkivator antenna, 120 cm

Fig. 5.25: Installation diagram for the Arkivator antenna, 120 cm

5.2.3. Lubrication and preservation of the antenna pivot

Before fitting the FOD unit bush onto the antenna pivot ensure that the “O” ring (part No. 1) is in the correct position. It is also essential to prevent moisture getting in between these two parts. This moisture could cause oxidation which would complicate disassembly of this mechanical coupling in the future. For this reason we need to treat these surfaces with the lubricant grease which is supplied in the box marked RAy bridge accessories. If you use a different grease for lubrication then it should be a Teflon grease or at least a silicon lubricant grease.

Grease points on the antenna pivot and FOD unit bush

Fig. 5.26: Grease points on the antenna pivot and FOD unit bush

Grease the internal area of the bush on the FOD unit (2) and the “O” ring (1) with a thin even layer that allows the pin to slide easily into the bush without damaging the “O” ring. Grease the area beyond the “O” ring on the antenna pin (3) with a thicker layer so that it fills the gap caused by the play between the pin and the bush (max. 0.1 mm/ø) thus preventing moisture getting in. Installation should be carried out according to the antenna installation description – see point f of this description.

5.3. Connectors

5.3.1. Connecting the FOD communication unit to the user network

The FOD communication unit is connected to the user network by an Ethernet cable via interfaces GbE, IEEE802.3ac 1000BASE-T. As standard, RACOM recommends using an S/FTP CAT 7 cable and two RJ45 connectors for outdoor installations. One for the internal (IE-PS-RJ45-FH-BK) and the second for the external (plastic IE-PS-V01P-RJ45-FH or metallic IE-PS-V01M-RJ45-FH) end of the cable.

Based on the PoE standard the station is powered over the Ethernet cable.

If the station is equipped with two connectors, the right one carries user data, and the left connector is to be used for servicing.

The middle BNC type connector serves for connecting a voltmeter for precisely setting direction.

Connecting the FOD communication unit

Fig. 5.27: Connecting the FOD communication unit

[Important]Important

Before connecting the FOD communication unit to the supply (to the user network) the FOD unit must be grounded according to Section 5.4, “Grounding”.

It is necessary to install the antenna lead so that there is no excessive mechanical stress applied on the Ethernet connector.

Example of a correct lead installation.

Fig. 5.28: Example of a correct lead installation.

5.3.2. Fitting an external IE-PS-V01P-RJ45-FH connector

We recommend using an S/FTP 4×(2×23AWG) Cat.7 + 2×(2×24 AWG) cable for connecting the FOD unit, as it is designed for external use. The cable contains two additional twisted pairs, 2x(2×24 AWG), which are not used. The following images show the internal cable without these additional pairs.

  1. Use the tools from the RAy Tool set for fitting connectors. See chapter Section 3.6, “Accessories”.

    Tools for fitting connectors

    Fig. 5.29: Tools for fitting connectors

    IE-PI-RJ45-FH connector before fitting

    Fig. 5.30: IE-PI-RJ45-FH connector before fitting

  2. Undo the nut on the connector cover and push it on to the cable. Then trim at least 20 mm of insulation from the end of the cable.

    Tool for removing insulation

    Fig. 5.31: Tool for removing insulation

    Insulation removed

    Fig. 5.32: Insulation removed

  3. Twist the braid forming the cable shielding together and wrap around the cable so that 2-3 loops are next to each other at the end of the insulation.

    Twisted shielding

    Fig. 5.33: Twisted shielding

    Shielding wrapped around the cable

    Fig. 5.34: Shielding wrapped around the cable

  4. Separate individual pairs of conductors, remove the aluminium shielding from them, cut it off, and separate individual conductors. Cut off the two additional twisted pairs from the thinner wire in the middle (not seen on these images).

    Trimming shielding

    Fig. 5.35: Trimming shielding

    Separated pairs of conductors

    Fig. 5.36: Separated pairs of conductors

  5. Push the lower layer of conductors into the openings as per the pinout sticker (T568B) attached to the connector. Take care not to confuse white conductors from individual pairs.

    Pushing the lower pairs into the connector

    Fig. 5.37: Pushing the lower pairs into the connector

    Lower pairs pushed in

    Fig. 5.38: Lower pairs pushed in

  6. Then from above push the upper conductors into the connector according to the pinout sticker and trim them. The cable must be pushed in far enough so that the braided shielding is inside the metal part of the connector.

    Cutting off of the upper conductors

    Fig. 5.39: Cutting off of the upper conductors

    All conductors in the connector

    Fig. 5.40: All conductors in the connector

  7. Remove the pinout sticker and fit the complementary half of the connector. Squeeze the parts together until the locks snap into place. Use the pair of pliers with parallel jaws from the RAy Tool set for this. Standard pliers would damage the connector.

    Fitting the complementary half of the connector

    Fig. 5.41: Fitting the complementary half
    of the connector

    Squeezing the connector until the locks snap into place

    Fig. 5.42: Squeezing the connector until the locks snap into place

  8. Then slide the protective cover onto the connector. It must fit into the grooves after snapping into place. Finally tighten the nut on the cover to seal the point where the cable enters the connector.

    Sliding the cover onto the connector

    Fig. 5.43: Sliding the cover onto the connector

    Finished IE-PI-RJ45-FH connector

    Fig. 5.44: Finished IE-PI-RJ45-FH connector

5.3.3. Fitting an internal IE-PS-RJ45-FH-BK connector

  1. Use the same tools as for fitting the external connector. The internal connector does not have a cover.

    IE-PS-RJ45-FH-BK connectorbefore fitting

    Fig. 5.45: IE-PS-RJ45-FH-BK connector
    before fitting

    Finished connector IE-PS-RJ45-FH-BK

    Fig. 5.46: Finished connector
    IE-PS-RJ45-FH-BK

  2. Trim at least 20 mm of insulation from the end of the cable.

    Removing insulation

    Fig. 5.47: Removing insulation

    Removed insulation

    Fig. 5.48: Removed insulation

  3. Twist the braid forming the cable shielding together and wrap around the cable so that 2-3 loops are next to each other at the end of the insulation. Separate individual pairs of conductors, remove the aluminium shielding from them, cut it off, and separate individual conductors. Cut off the two additional twisted pairs from the thinner wire in the middle (not seen on these images).

    Twisted shielding

    Fig. 5.49: Twisted shielding

    Removing aluminium conductor shielding

    Fig. 5.50: Removing aluminium conductor shielding

  4. Prepare individual pairs according to the pinout sticker attached to the connector (T568B) and unwind the two pairs for the bottom part of the connector. Take care not to confuse white conductors from individual pairs.

    Separated pairs of conductors

    Fig. 5.51: Separated pairs of conductors

    Lower two pairs ready for inserting

    Fig. 5.52: Lower two pairs ready for inserting

     

     

     

  5. First insert the lower row of conductors from the back. Then unwind the others and insert them into the holes for the upper row of conductors, as per the pinout sticker. Ensure that the wrapped around shielding braid is inserted sufficiently to create a good contact with the second part of the connector fitted with sprung contacts. Snap the plastic clamp onto the cable. Squeeze it together tight enough so that it doesn’t allow movement of the cable.

    Lower pairs pushed in

    Fig. 5.53: Lower pairs pushed in

    All conductors in the connector

    Fig. 5.54: All conductors in the connector

  6. Trim the overhanging conductors.

    Trimming conductors

    Fig. 5.55: Trimming conductors

    Inserted and trimmed conductors

    Fig. 5.56: Inserted and trimmed conductors

  7. Remove the pinout sticker from the connector and slide on the mate. Clamp the whole connector together until the locks snap into place. Use a pair of pliers with flat heads from the RAy Tool set. Ordinary pliers could damage the connector.

    Fitting the mate to the internal connector

    Fig. 5.57: Fitting the mate to the
    internal connector

    Clamping the internal connector together with pliers

    Fig. 5.58: Clamping the internal connector together with pliers

5.4. Grounding

The lightning and overvoltage protection system example, designed in accordance with regulation CSN EN 62305.

  1. Where possible the antenna should be located in an LPZ 0B protection zone with the use of a local or artificial air termination device for protection against direct lightning strikes.

  2. When meeting conditions for ensuring electrical insulation (distance from the lightning conductor) in accordance with article 6.3, it is not recommended to ground the load-bearing structure and antenna to the external air termination network. Ground should be connected to the protective system of the internal LV wiring or grounded internal structures using a CYA 6 mm2 bonding conductor , see Fig. 5.59, “Grounding installation 1”

  3. If it is not possible to set up conditions of electrical insulation in accordance with article 6.3 we recommend connecting the load-bearing structure at roof level to the external air termination network via an 8mm diameter FeZn conductor and shielding the data cable before entry to the building with a grounding kit and CYA 6 mm2 conductor to the bonding bus, and if not already set up then also to the external air termination network, see Fig. 5.60, “Grounding installation 2”

  4. If there is not an external LPS on the building we recommend routing lightning current through an 8mm FeZn conductor to a common grounding system, or to a separate grounding electrode with a ground resistance up to 10 Ω.

  5. For limiting the overvoltage transferred over the data cable and into the building we recommend fitting surge protection at the interface between zones LPZ 0 and LPZ 1 connected via a CYA 4 mm2 conductor to the same grounding point as the antenna or the antenna mast.

  6. We recommend protecting the PoE power supply from overvoltage on the LV side with suitable class D surge protection.

Grounding installation 1

Fig. 5.59: Grounding installation 1

Grounding installation 2

Fig. 5.60: Grounding installation 2

The RAy unit is grounded to the flange by the Ethernet connector using an M6 screw. An insulated copper cable with a minimum diameter of 6 mm2 terminated with a terminal lug is used as a protective conductor. The conductor should have a green/yellow sheath across its whole length. For grounding a RAy grounding kit can be ordered as an accessory (see Section 3.6, “Accessories”) containing a grounding terminal ZSA16, 40 cm grounding strip 15 mm wide, and 100 cm of cable with grounding lugs. For instructions on installing terminals see the datasheet RAy grounding kit. A qualified person must install the antenna.

Racom supplies surge protection for installation on Ethernet cables entering buildings. For more details see Surge protection.

Additional safety recommendations

  • Only qualified personnel with authorisation to work at heights are entitled to install antennas on masts, roofs and walls of buildings.

  • Do not install the antenna in the vicinity of electrical wiring. The antenna and bracket should not come into contact with electrical wiring at any time.

  • The antenna and cables are electrical conductors. During installation electrostatic charges may build up which may lead to injury. During installation or repair work to parts of the antenna lead open metal parts must be temporarily grounded.

  • The antenna and antenna cable must be grounded at all times. See Section 5.4, “Grounding”.

  • Do not mount the antenna in windy or rainy conditions or during a storm, or if the area is covered with snow or ice.

  • Do not touch the antenna, antenna brackets or conductors during a storm.

Grounding kit for S/FTP 4+2 cable

Fig. 5.61: Grounding kit for S/FTP 4+2 cable

Grounding kit detail

Fig. 5.62: Grounding kit detail


RAy grounding kit

Fig. 5.63: RAy grounding kit

Grounding the FOD unit

Fig. 5.64: Grounding the FOD unit

 
Protective conductor at the FOD unit

Fig. 5.65: Protective conductor at the FOD unit

Protective conductor at the mast on a ZSA16 terminal

Fig. 5.66: Protective conductor at the mast on a ZSA16 terminal

Separated lightning conductor

Fig. 5.67: Separated lightning conductor

5.5. Start up

Connect a power supply to the installed FOD unit via ethernet cable and connect the configuration PC. Use an internet browser (such as Mozilla Firefox) to enter the configuration menu.

5.5.1. Noise on the site

Analyse the level of noise in the individual channels using the spectrum analyser under Diagnostics/Tools. If necessary adjust the choice of working channel on the basis of the results.

While doing so respect the rule that in one location all units emit signal in the upper half H of the range and receive it in the lower half L of the range, or the other way round. A transmitter must not be installed in the half of the spectrum where other units function as receivers.

5.5.2. Antennas directing

When directing the antenna for the first time, use the parameters in the Step-by-step Guide, Section 4.3, “Tests” (7 MHz, QPSK, High, +3 dBm). It is good when both sides of the link are available for simultaneous manipulation. Connect a voltmeter to the BNC connector and watch the changes in RSS on a range of 2 V DC. Alternate units on both sides and slowly adjust the antenna vertically and horizontally to find the position with the strongest reception. At the same time look for the main signal maximums. To differentiate between the main and the side maximums refer to Main and side lobes paragraph.

RSS measuring

Connecting a voltmeter to the BNC connector.

Fig. 5.68: Connecting a voltmeter to the BNC connector.

For correctly setting the bridge and positioning it in the right direction it is advisable to connect a PC a use the diagnostic capabilities of the RAy station. In uncomplicated cases it is enough to connect a voltmeter via a BNC connector and adjust to the highest indicated voltage.

 

 

 

 


A voltage in the range from 0.5 to 2 V indicates the strength of the received signal. Adjust the antenna with the station to the maximum voltmeter voltage using point g of the mounting instructions. If the station is equipped with audible indication: We can also use audible indication which can be switched on in the Diagnostics Tools menu. Switch off audible indication after making any adjustment.

Voltage-signal strength diagram

Fig. 5.69: Voltage-signal strength diagram

Main and side lobes

Radiation diagrams

Fig. 5.70: Radiation diagrams

Both antennas should be oriented towards each other using the peaks of radiation diagram. Adjust the antenna alternately in the horizontal and vertical axes and monitor the resulting signal strength. Use the calculation of the expected RSS with the precision of several dBm as guidance. Side lobes transmit signal ca 20 dBm weaker (http://www.racom.eu/eng/products/microwave-link.html#calculation).

Radiation diagram – incorrect adjustment

Fig. 5.71: Radiation diagram – incorrect adjustment

The resulting RSS helps distinguish between the states A-A and C-C which appear similar. It also helps in situations where simple search for a maximum doesn’t work as shown in the illustration “incorrect adjustment”.

Real radiation diagrams are more complex, especially in that they run differently in horizontal and vertical axes. The basic steps for determining the main radiation lobe however stay valid. For example:

3D example of more complicated Radiation Pattern

Fig. 5.72: 3D example of more complicated Radiation Pattern

5.5.3. Link test

The antenna directing parameters of the link are shown in the Status menu while its quality is characterised by RSS and SNR.

RSS, SNR and BER values are refreshed in real time every few seconds – see Diagnostics/Realtime.

When the configuration is finished it is recommended that you reset the statistics using the Clear button in Diagnostics/Statistics. This allows an easier diagnostics of the link’s reliability over time.

5.5.4. Setup adjustment

After both antennas have been directed, setup operation parameters for the link:

  • Bandwidth 28 / 14 / 7 MHz

  • Channel number (TX / RX channel)

  • Modulation (TX modulation) – ACM is recommended. When choosing a fixed modulation a margin must be taken into account. If fixed modulation is setup close to a possible maximum, then a deterioration in RSS could endanger the link both for data transfer as well as service access.

  • Encoding (Coding strength) – automatic for ACM.

  • Transmitting power (RF power)

  • Verify and record IP addresses

  • Define access channels – https / telnet / ssh / ssh with password

Restart both units by interrupting their power supply and verify the status of the link. This verifies that all parameters have been stored correctly in memory.

Go to Device/Configuration/Backup and save your configuration to file “ray.conf”.

This finishes the installation. Further configuration can be performed remotely. For better orientation all menus feature help. The next chapter contains their transcription.