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Tri-Boom Ultra High-Gain  

TV Aerial Grp. K

LAB450K   

User Guide

 Support: www.labgear.co.uk/support

1

General Safety Precautions  

Do not undertake work outdoors at height unless you are  

competent in the use of ladders and other access equipment.  

Always use correct equipment, observe appropriate safety  

precautions and follow manufacturers instructions. If in doubt  

consult a professional installer.
Before starting installation check structure is sound and check for  

hidden wiring or plumbing. 
When working on an installation outside, beware of overhead power lines. 
Observe safe working practices, tread carefully on roofs and ensure 

adequate lighting is available if working in loft or roof space. 
Before making any connections switch electricity off at the mains. 
To avoid injury always route cables or wiring carefully. Ensure cable 

is correctly routed before fixing into position, taking care not to 

overtighten cable clips. 
This kit contains small parts - keep out of reach of children. 
After installation make regular maintenance checks for wear and tear. 

Congratulations on the purchase of your high gain digital 

aerial. The aerial is ideal for the reception of all available 

signals in weak and fringe areas. The aerial is of particularly 

robust construction to ensure a long operating life.

•  Ideal for fringe reception areas
•  Tilting mast clamp for easy adjustment 

•  Tuned to prevent interference  from 4G/5G mobile signals
•  Easy dipole assembly
•  Unique compact folding design
•  Electronic 75Ω balun
•  Connection: F type

1.  Triboom x1
2.  UHF Reflector clamps x2  

 

(inc. bolt & wing nut) 

3.  Dipole x1 (inc. wing nut x1)
4.  UHF Reflectors x2

5.  Tilting Mast Clamp   

 

(inc. wing nuts x2)

6.  Weather Boot x1
7.  F Plug x1

1

2

2

4

4

3

5

6

7

Box Contents

A

1

2

3

4

8

8

Aerial assembly

Fix the reflectors to the main boom 

using the brackets and the bolt with 

wing nut supplied

Fasten the balun to the underside of the main  

boom as shown in Fig. 5. Make sure the balun is the  

right way round as shown in Fig. 4 and 8.

B

C

1. Twist the lock to open

2-3. Unfold the booms  

4. To lock the booms in  

position turn both of the  

two knobs on either  

side of the aerial in a  

clockwise direction 

through 180˚ making 

sure that the arrows 

line up with the locked 

symbol - see Fig. 4.

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