The System IAM 3.5m ‘SQUAD’ is an Integrated Antenna Mast (IAM) combining a lightweight deployable Rolatube mast with an integrated broadband antenna covering 30–300MHz.
The NL (Nylon Laminate) specification features a Cordura 500 Denier external finish and a vertically polarised dipole antenna embedded directly into the composite mast body — eliminating the need for a separate antenna, reducing setup time, and minimising points of failure.
Available in Multicam, Black, Multicam Alpine, and Multicam Arid finishes. The entire system weighs just 2.5kg and packs down to 170mm × 250mm × 180mm.
| Item | Description |
|---|---|
| 1 | 1 × 3.5m 51mm (11.5′ 2″) ‘SQUAD’ Integrated Antenna Mast |
| 2 | 1 × BNC (F) to TNC (M) adapter 1 × BNC (F) to N-Type (M) adapter 1 × BNC (F) to BNC (F) adapter |
| 3 | 1 × 51mm (2″) top cap |
| 4 | 1 × 51mm (2″) base cap |
| 5 | 6 × Red rock pegs |
| 6 | 3 × Guy ropes |
| 7 | 1 × Bag |
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.
Remove & Unclip
Remove rolled IAM from bag and unclip flying lead from cable clip.
Unwind Cable & Unroll
Unwind cable then unroll the IAM mast.
Connect & Lift
Connect the IAM to the radio, then lift the IAM to gain height for transmission.
Optional: additional height can be gained by using a line through the rigging hole to haul over a tree branch or other structure.
Recovery
To recover, detach the radio and roll the IAM from the appropriate end, following the guidelines on the label.
Stow
Wrap flying lead around rolled IAM and clip into place using cable clip.
Position Base Cap
Person 1: Place the flat side of the base cap away from the wind and secure with red base cap pegs.
Lay Out Guy Ropes
Person 2: Using the pegs in the base cap for guidance, lay guy ropes’ snaphooks next to IAM. Pace out the 3 guy ropes to 2.5m (8.2′). Insert pegs in ground, attach guy ropes and return to IAM.
Unroll & Attach Top Cap
Person 1: Unroll the IAM and place the top cap on the IAM with flat edge aligned to slot, and clip on guy ropes. The trailing lead comes out of the bottom of the IAM.
Raise & Secure
Person 1: Lift the IAM into the base cap and support. Person 2: Secure the 3 guy ropes to the pegs and tighten guy ropes sufficiently to maintain stability. Do not overtighten.
Connect Radio
Connect the cable to the radio.
+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 IAM: 3.5m ‘SQUAD’
NL Specification • 30–300MHz Integrated Antenna Mast
The System IAM 3.5m NL ‘SQUAD’ is a lightweight broadband range extender combining a deployable BRC (Bi-stable Reeled Composite) mast with an integrated vertically polarised dipole antenna covering the full 30–300MHz frequency band.
The mast body is constructed from PP-glass fibre composite with the antenna embedded directly within the structure. The external finish uses Nylon woven fabric (Cordura 500 Denier) available in Black or MTP camouflage patterns.
A permanently fixed 2.2m (7.2′) RF cable extends from the base of the mast, terminated with a BNC (M) connector. Three adapter options are supplied for compatibility with TNC, N-Type, and BNC radio interfaces.
System
| System Name | System IAM 3.5m NL SQUAD 30-300MHz |
| Deployed Height | 3.5m (11.5′) |
| Deployed Tube ID | 51mm (2″) |
| Packed Dimensions (W×H×D) | 170mm × 250mm × 180mm (6.6″ × 9.8″ × 7″) |
| System Weight | 2.5kg (5.5lb) ** |
| Construct & Finish | Mast body: PP-glass fibre composite with integral dipole antenna External: Nylon woven fabric (Cordura 500 Denier). Colour: Black or MTP |
| Environmental | Compliant with relevant sections of MIL-STD-810H |
Antenna & RF
| Frequency Range | 30–300MHz |
| Radiation Pattern | Omnidirectional |
| Antenna Format | Vertically Polarised Dipole |
| Nominal Gain | 2.2 dBi |
| VSWR | 30–50MHz: <4:1 50–300MHz: <3:1 |
| Power Rating | 25W using standard duty cycles and voice over radio transmit protocols1 |
| Impedance | 50 ohms nominal |
| RF Cable | Permanently fixed 2.2m (7.2′) extending from base of mast |
| Connection Type | BNC (M) |
1.0 VSWR Trace
* As measured at the base of the mast and includes feeder loss
2.0 Polar Plots
3.0 Nominal Swept Gain
System Variants
| System | Part Number | NSN |
|---|---|---|
| 3.5m NL ‘SQUAD’ IAM (30-300MHz) system multicam | 952-203500-1-1-NL | NSN Pending |
| 3.5m NL ‘SQUAD’ IAM (30-300MHz) system black | 952-203500-3-1-NL | NSN Pending |
| 3.5m NL ‘SQUAD’ IAM (30-300MHz) system multicam alpine * | 952-203500-6-1-NL | NSN Pending |
| 3.5m NL ‘SQUAD’ IAM (30-300MHz) system multicam arid * | 952-203500-8-1-NL | NSN Pending |
Component Breakdown
| Component | Part Number | NSN | Qty |
|---|---|---|---|
| 3.5m 51mm NL ‘SQUAD’ IAM (30-300MHz) multicam | 902-203500-1-0-NL | NSN Pending | 1 |
| 3.5m 51mm NL ‘SQUAD’ IAM (30-300MHz) black | 902-203500-3-0-NL | NSN Pending | 1 |
| 3.5m NL ‘SQUAD’ IAM (30-300MHz) multicam alpine | 902-203500-6-0-NL | NSN pending | 1 |
| 3.5m NL ‘SQUAD’ IAM (30-300MHz) multicam arid | 902-203500-8-0-NL | NSN pending | 1 |
| Top Cap | 800-001007 | 5985-99-217-2121 | 1 |
| Base Cap | 800-001004 | 5985-99-219-0841 | 1 |
| Set of 3 × 5.5m (18′) Guy Ropes | 207-004006 | 4010-99-155-5292 | 1 |
| Red Rock Peg | 207-002008 | 4030-99-847-5233 | 6 |
| BNC (F) to TNC (M) Adapter | 404-000087 | NSN pending | 1 |
| BNC (F) to N-Type (M) Adapter | 404-000088 | NSN pending | 1 |
| BNC (F) to BNC (F) Adapter | 404-000089 | NSN pending | 1 |
| Bag | 502-003062 | 8105-99-753-0838 | 1 |
Optional Accessories
| Accessory | Part Number | NSN |
|---|---|---|
| 3.5m IAM Mount for System 75 | 800-006200 | 5985-99-371-3902 |
| 3.5m IAM Mount for System 100 | 800-006210 | 5985-99-680-0511 |
+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