System 75 5m Single Tube Mast
| Item | Description |
|---|---|
| 1 | 1 × 76mm (3″) diameter tube at 5m (16.4′) |
| 2 | 1 × 76mm (3″) Top cap – Single |
| 3 | 1 × 76mm (3″) low profile base cap |
| 4 | 3 × Black rock pegs |
| 5 | 3 × Red rock pegs |
| 6 | 3 × Guy ropes |
| 7 | 3 × Soft ground pegs (Mil-spec version only) |
| 8 | Bag (Berry compliant for Mil-spec version) |
HF Antenna Kit
| Item | Description |
|---|---|
| 1 | 3 × Black hard ground pegs |
| 2 | 3 × Soft ground pegs |
| 3 | 1 × System bag |
| 4 | 1 × Resistor tube |
| 5 | 1 × 150W Balun |
| 6 | 1 × Radio connection cable (15.24m) (50’) |
| 7 | 1 × Secondary Cuff |
| 8 | 2 × Dipole antenna legs |
| 9 | 2 × Dipole guy rope extensions |
| 10 | 1 × Hoist rope |
The system is rated to the load stated. The end user is responsible for ensuring the loads are securely fastened. Rolatube Technology does not accept liability or provide warranty for usage deviating from the enclosed instructions.
- Before deploying the mast please read all warnings below.
- Avoid contact with heavy and sharp objects, in storage do not stack anything on top of Rolatubes.
- Do not use the mast if there is visible damage.
- The end user must assess the suitability of the pegs provided for the intended deployment environment, and replace with more suitable products if necessary.
- Rolatube mast systems are rated for wind speeds of up to 100kph (62mph). The maximum wind rating is based on the bare mast correctly deployed and guyed. The end user or system integrator is responsible for ensuring the system is safe with the top load mounted.
- Ensure the deployment site is clear of any cables or equipment that represents an electric shock hazard.
- Do not deploy near power lines, in thunderstorms or winds exceeding 100kph (62mph).
- Do not exceed the rated top load of the mast.
- Ensure any top load is securely fastened.
- Do not allow the mast to bend.
- Ensure the deployment site is clear of any underground hazards before using pegs.
- Ensure guy ropes and pegs are secure for duration of deployment.
- Consideration must be given to the location of any cable from the top load to avoid trip hazards.
- Consideration must be given when deploying in proximity to an aircraft landing site for aircraft movement.
- Rolatube masts are only designed to function in the vertical axis.
- Deploy the mast with the slot facing away from any prevailing wind.
Persons 2, 3 & 4 — At guy pegs: Maintaining tension during deployment to keep mast vertical.
Position Base Cap
Person 1: Place the base cap where the mast is to be deployed, with one peg hole facing into the wind. Secure with red base cap pegs.
Pace Out Guy Ropes
Persons 2, 3 and 4: Using the pegs in the base cap for guidance, pace out the position of the various guy ropes and insert pegs into the ground. For the 5m system the guy pegs are placed at 5m (16.4′).
Connect Guy Ropes
Persons 2, 3 and 4: Unwind all guy ropes, connect to the pegs and lay the snap hooks next to the top cap, ready for connection as the mast is deployed. Wait at the 3 outer pegs.
Attach Clip to Top Cap
During the mast deployment either fit the clip to the top cap and feed the antenna hoist rope through the clip on the top cap.
Secure the hoist rope to prevent it being raised with the mast.
Fit the Secondary Cuff
Fit the secondary cuff to the mast at the desired height and secure in place using the thumb screw. Attach the clip to the lanyard. Feed the hoist rope through the clip on the secondary cuff.
On the System 75 5m mast the secondary cuff is fitted at the same stage as the top cap (step 6), according to the Secondary Cuff Kit User Guide. Its guy ropes, if used, are secured to their pegs once the mast has been deployed and secured with the top cap guy ropes.
Attach Top Cap & Unroll
Person 1: Place mast between feet and attach the top cap with the flat edge aligned with the open slot in the mast, which is facing away from the wind. Secure the topload and connect guy ropes. Continue to unroll the mast vertically whilst Persons 2, 3 and 4 maintain light tension on the guy ropes to keep the mast vertical.
Slide into Base Cap
Person 1: When the mast is fully unrolled, slide it carefully into the base cap, whilst keeping it vertical and ensuring the slot is still facing away from the wind. Persons 2, 3 and 4: Maintain light tension on guy ropes.
Secure Guy Ropes
Persons 2, 3 and 4: Tighten and secure guy ropes. The mast deployment is now complete and the free end of the hoist rope is at the base of the mast, ready for the antenna.
Connect Balun to Resistor Tube
Connect the balun to the resistor tube using the snap hook.
Connect Hoist Rope & Dipole Legs
Connect the hoist rope to the top of the resistor tube using the snap hook. Unroll the dipole antenna legs and connect to the resistor tube and balun. Ensure all four strain relief snap hooks are correctly fitted.
Connect the Radio Cable
Connect the radio cable to the balun and ensure its strain relief cable is attached to the snap hook on the top of the balun.
Raise the Antenna Assembly
Raise the antenna assembly using the hoist rope to the desired height. Secure the hoist rope to the base cap or ground using a peg.
Peg Out the Dipoles
Use the pegs to secure the dipoles in position. If required attach the extension guy ropes to the dipoles and peg and tension in the usual way.
Inverted V
Slope
Horizontal
+44 (0)1590 688019
enquiries@rolatube.com
RTL Materials Ltd trading as Rolatube Technology
130 Wellworthy Road, Ampress Park, Lymington SO41 8JY, UK
Registered in England & Wales No. 3332020 • VAT Reg 706 972 317
System 75 5m HF Antenna Kit
1.8–30MHz folded dipole on a 5m (16.4′) System 75 Single Tube Mast — 150W
HF Antenna Kit
| Description | Horizontally Polarized Folded Dipole |
| Frequency Range | 1.8 – 30MHz |
| Power Rating | 150W |
| VSWR | 1.5 : 1 Maximum |
| Impedance | 50 Ohms nominal |
| Radiation Pattern | Omnidirectional |
| RF Connector | BNC male to N Type male |
| RF Coaxial | RG8X 15.24m (50′ nominal) |
| System Weight | 4.7kg (10.4lbs) |
| Deployed Width | Up to 16.76m (55′ nominal) |
| Deployed Height | Up to 10m (32′ 9″ nominal) Limited to 5m (16.4′) on this mast |
| Antenna Weight1 | 3.0kg (6.6lbs) |
| Environmental | Complies with the relevant aspects of MIL-STD-810G. |
System 75 5m Single Tube Mast
| System Name | System 75 5m Single Tube Mast |
| System Part Number |
Black: 950-305010-3-1 Orange: 950-305010-5-1 Blue: 950-305010-7-1 |
| Deployed Height | 5m (16.4′) |
| Deployed Tube Dia | 76mm (3″) |
| Top Load Max2 | 5kg (11lb) |
| System Weight* | 5.3kg (11.7lb) |
| Packed System Volume | 280mm × 330mm × 250mm (11″ × 12.9″ × 9.8″) |
| Construct & Finish | Mast Body: PP-Glass Fibre composite. Cover: Polyester fabric. |
| Environmental | Water Proof & Dust proof. UV resistant. Rated to 100kph (62mph) wind speed3. |
| System Components |
1 × 5m 76mm (16.4′ 3″) mast 1 × Top Cap 1 × Low Profile Base Cap 3 × Top Cap Guy Ropes 3 × Black Rock Pegs 3 × Red Rock Pegs 1 × Mast Bag |
Deployed System — Combined Summary
| Total System Height | 5m (16.4′) Mast deployed height; the antenna is hoisted to the desired height at or below the top cap. |
| Deployed Antenna Width | Up to 16.76m (55′ nominal) |
| Combined Packed Weight | 10.0kg (22.1lb) HF Antenna Kit 4.7kg (10.4lbs) + 5m mast 5.3kg (11.7lb, without pegs). |
| Load Carried by Mast | 3.0kg (6.6lbs) HF antenna assembly weight. |
| 5m Mast Rated Top Load | 5kg (11lb) |
| Wind Rating | 100kph (62mph) Bare mast only, correctly deployed and guyed. |
The HF antenna assembly weighs 3.0kg (6.6lbs). The System 75 5m Single Tube Mast has a rated maximum top load of 5kg (11lb), so the antenna is within the mast’s rated maximum. Do not exceed the rated top load of the mast, and note that the rated top load is a maximum weight only — sail area and wind loading of the deployed antenna must be discussed with a Rolatube technical representative.
1 The maximum top load of the mast must not be exceeded. The end user or system integrator is responsible for deployment and ensuring that the final system is fit for purpose with regard to wind loadings on all equipment deployed on the mast. Refer to the individual product data sheets for more information or consult with the Rolatube representative.
2 Maximum weight only. Sail area should be discussed with Rolatube technical representative.
3 Bare mast only, correctly deployed. Integrator should discuss wind loadings of top load with Rolatube representative.
System
| System | Part Number | NSN | Qty |
|---|---|---|---|
| HF Antenna Kit | 207-180001 | 5985-99-356-4997 | 1 |
HF Antenna Kit Component List
| Component | Part Number | NSN | Qty |
|---|---|---|---|
| HF Antenna | 702-000001 | NSN Pending | 1 |
| Secondary Cuff for System 75 | 800-000119 | 5985-99-291-1726 | 1 |
| Small System Bag | 502-003062 | 8105-99-753-0838 | 1 |
HF Antenna Component List
| Component | Part Number | NSN | Qty |
|---|---|---|---|
| HF Antenna Resistor Tube | 703-000001 | NSN Pending | 1 |
| Balun HF 150W 2-30MHz | 703-000002 | NSN Pending | 1 |
| HF Antenna Dipole | 703-000003 | NSN Pending | 2 |
| RF Coaxial Cable (15.24m, 50’) | 703-000005 | NSN Pending | 1 |
| HF Antenna Guy Rope | 703-000006 | NSN Pending | 2 |
| Hoist Rope with Ratchet | 703-000007 | NSN Pending | 1 |
| Black Ground Stake 30cm | 207-002004 | 4030-99-157-2404 | 3 |
| Green Soft Ground Peg | 207-002005 | 4030-99-155-8599 | 3 |
System
| System | Part Number |
|---|---|
| System 75 5m Single Tube Mast, black | 950-305010-3-1 |
| System 75 5m Single Tube Mast, orange | 950-305010-5-1 |
| System 75 5m Single Tube Mast, blue | 950-305010-7-1 |
Components
| Component | Part Number | Qty |
|---|---|---|
| 5m 76mm (16.4′ 3″) tube, black | 900-305010-3-0 | 1 |
| 5m 76mm (16.4′ 3″) tube, orange | 900-305010-5-0 | 1 |
| 5m 76mm (16.4′ 3″) tube, blue | 900-305010-7-0 | 1 |
| 76mm (3″) Top cap – Single | 800-500061 | 1 |
| 76mm (3″) Low profile base cap | 800-001058 | 1 |
| Steel Ground Stake 30cm black | 207-002004 | 3 |
| Red Rock Peg | 207-002008 | 3 |
| Set of 3 × 7.5m (24.6′) Guy ropes (brown tags) | 207-004101 | 1 |
| Mast Bag | 502-003021 | 1 |
+44 (0)1590 688019
enquiries@rolatube.com • www.rolatube.com
RTL Materials Ltd trading as Rolatube Technology
130 Wellworthy Road, Ampress Park, Lymington SO41 8JY, UK
Registered in England & Wales No. 3332020 • VAT Reg 706 972 317