YT Telescopic Mast Range

A little stronger than the PT Series masts for any particular height. Compact enough to often allow vehicle installation in a vertical position. The need to transport the mast in the horizontal position on the roof of the vehicle, as is necessary with most WT masts, is therefore often avoided. The YT Series often fits where other series are too weak or too long when retracted.

The volume of the YT Series makes extension with a handpump an acceptable method which offers simplicity.

Choose from 10 models without compromise

Mast Model	YT 9	YT 10.5	YT 12	YT 15	YT 21
With plain collars Cat. No.	14448	14458	14446	14447	14460
Retracted height (mm)	1650	2097	2134	2560	3780
With clamp collars Cat. No.	14454	14464	14452	14453	14466
Retracted height (mm)	1780	2217	2274	2700	2900
Extended height (m)	8.5	10.5	12.0	15.0	21.0
Top section diameter in mm (inches)	38.1 (1 ½")	50.8 (2")	38.1 (1 ½")	38.1 (1 ½")	50.8 (2")
Weight of mast (approx. kg)	38 kg	42 kg	43 kg	48 kg	70 kg
No. of sections	8	7	8	8	7
Maximum recommended headload (kg)	15 kg	20 kg	12 kg	10 kg	15 kg
Antenna socket diameter (mm)	24	24	24	24	24
Maximum air pressure	1.5 kg/cm²(21 lbs/in²g)

Brief Specification

Mast sections
Heat-treated aluminium alloy.

Collars
Machined aluminium alloy castings LM6:
Plain collars for minimum retracted height or clamp collars for semi-permanent erection.

Guys
5 mm terylene cord with ball tensioners and quick attachment hooks. Kevlar guys available where rigidity is essential.

Finishes
Steel fittings: zinc plated and passivated.
Paint: standard colour white.
Mast sections: anodised natural.

Operating Temperatures
Dry: +55°C to -40°C

The Quality is Assured

High quality features are identical to the PT and WT Series. The principal difference lies in the 5" diameter base tube instead of 4 ½" as in the PT.

Accessories are available including field legs, guy collars and guys for field applications.

If one compares this YT9 mast protrusion above the roof of the vehicle with that on a previous page, one can see the advantageous compactness of the short YT Series.

Vehicle Mast Accessories

Image: Roof Bearing - Cat. No. 14191 Roof Bearing - Cat. No. 14191
Ensures a weatherproof, turnable seal where the mast passes through the vehicle roof.

Image: Fixed Base - Cat. No. 14237 Fixed Base - Cat. No. 14237
The simplest lower mounting for a non-turnable mast.

Image: Rotatable Base - Cat. No. 14238 Rotatable Base - Cat. No. 14238
When a mast must be turned in conjunction with a roof bearing, this is the base required.

Rotatable base with static air entry Cat. No. 13916
This requires a change to the mast base fittings and should be built in by the factory at time of order.

Image: Wheel handle - Cat. No. 13626 Wheel handle - Cat. No. 13626
Facilitates the manual turning of the YT Mast.

Internal extension warning switch - Cat. No. 13752
A user protection that can only be fitted at the factory. Should be coupled to a warning light or klaxon.

Field Mounting Accessories

Should a YT mast be chosen for field erection the following accessories are available in combination with guys and air equipment which are shown in the appropriate section of this catalogue.

Image: Field leg collar - Cat. No. 13632 Field leg collar - Cat. No. 13632
This collar is primarily made for the attachment of field legs to a rotatable field mast. A bubble level is incorporated.

Image: Field leg set - Cat. No. 13626 Field leg set - Cat. No. 13626
Includes swivelling base and ground spikes as shown.

Image: Canvas cover - Cat. No. 13631 Canvas cover - Cat. No. 13631
Protects the top of a retracted mast.