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Feed Installation Instructions3 ft Antennas (with E-Mount)DA, UA, SU, SD, DAXUDA, UXA, SUX, SDX NMT 534-00(e)

1. Recommendations

2. Feed disassembly

3. Antenna orientation depending of antenna offset

Cardboard

Cardboard

The feed is a precision component which should be handled with special care duringinstallation. For instance, always carry the feed, supporting casting plate side. Anydamage may degrade the antenna’s performance. Repair of feeds is not possible inthe field.

- Dismount the front part of thefeed system (pre-assembled infactory).

- Hold the antenna in the correct orientation depending of the offset to the Left or Right of thesupport pipe on the tower.

Antenna orientationfor an Offset Left

Antenna orientationfor an Offset Right

Depending of frequency, a tuningplate maybe pre-installed, (you

do not need to removed it).

Front part of thefeed system

Rear part of thefeed system

Remove the 4socket screws M4

with SL washers A4to split the feed

system in 2 parts(Front & Rear)

NMT 534-00e 2/3

4. Feed orientation for monopolarized feed system

5. Feed orientation for dualpolarized feed system

6. Feed system installation

HorizontalPolarization

VerticalPolarization

AntennaTOP

AntennaTOP

HorizontalPolarization

VerticalPolarization

Output IEC Flange Output IEC Flange+ N Transition

AntennaTOP

- Install the rear part ofthe feed system usingthe 4 socket screwsM5 with washers, onthe reflector castingring

4 screws M54 sl washer A54 washers 5.3 Ø15

Rear part

Reflectorcasting ring

NMT 534-00e 3/3

7. Feed polarization adjustment (to do after antenna installation on tower pipe)

8. Next instructions (refer to main installation instructions)

- Install the front part of the feed onthe rear part, with the 4 M4 screws(refer to the previous pages forfeed‘s system polarization)

4 socket screws M44 sl washers A4

Front part of the feed system (if the feed isequipped with a tuning plate, you do not needto remove it)

Take care to notbrake the mylar

obturation

±5° P

olar

. Adjust.

±5° Polar

. Adj

ust.

±5° P

olar

. Adjust.

±5° Polar

. Adj

ust.

- Loosen the 4 screws M5- Adjust polarization ± 5°- Tighten the 4 M5 screws

Monopolarization Dual polarization

M5 screws M5 screws