The Netgear LM1200 (model LM1200AUS) is a compact, CAT‑4 LTE modem that delivers up to 150 Mbps downlink and 50 Mbps uplink on a wide range of 4G LTE and 3G UMTS bands (B1, B3, B7, B8, B20, B28A, B38, B40, B41 and UMTS B1, B8). Its two rear TS9 RF ports allow the installation of external antennas, a practical way to overcome weak indoor coverage, building attenuation or remote‑site signal loss.
Campad Electronics Antennas
Campad Electronics supplies a full suite of compatible antennas, low‑loss patch leads, mounting hardware and extension solutions, enabling users to tailor the LM1200 to any environment, home, office, vehicle or marine installation.
Antenna Options
| Antenna | Frequency Range | Gain (dBi) | Connector (SMA) | Typical Use | Price (AU) |
|---|---|---|---|---|---|
| MIMO Marine 3G/4G/5G | 698 – 3600MHz | 2.5 – 6.5 | SMA | Dual‑polarised, omni‑directional for boats, RVs or outdoor enclosures | $659.99 |
| Pulse Larsen Magnetic | 698–2700MHz | 4 – 5.6 | SMA | Magnetic base for rapid deployment on metal surfaces, indoor or outdoor | $154.99 |
| Strike B3 Bullbar Mount | 698–3600MHz | 7 | SMA | Bull‑bar mount for trucks, vans or off‑road vehicles; high gain omni‑directional | $189.99 |
| Strike B3 Compact Bullbar | 698–3600MHz | 7 | SMA | Smaller footprint bull‑bar version, suitable for tighter mounting spaces | $179.99 |
| 7dBi Magnetic Base Antenna | 698–3600MHz | 7 | SMA | General‑purpose magnetic antenna for indoor or temporary outdoor use | $49.99 |
| Building‑Mount 3G/4G/5G Kit (10m cable) | 698–3600MHz | 7 (typical) | SMA | Wall‑ or roof‑mounted omni antenna with 10m low‑loss cable, ideal for permanent installations | $209.99 |
All antennas terminate in an SMA connector, matching the SMA ends of Campad Electronics’ patch leads. The SMA‑to‑TS9 interface on the LM1200 eliminates any need for firmware modifications; the modem automatically detects the external antenna and routes the signal through the appropriate TS9 port.
Choosing the Right Antenna
- Omnidirectional MIMO (e.g. MIMO Marine): Best for environments where the signal arrives from multiple directions, such as maritime vessels or mobile units that change orientation frequently.
- Magnetic Base (Pulse Larsen, 7dBi): Quick‑attach solution for metal surfaces; useful for temporary field tests or indoor locations with limited mounting options.
- Bull‑Bar Mount (Strike B3): Provides a sturdy, weather‑resistant mount on vehicle exteriors, delivering a consistent 7dBi gain while protecting the connector from vibration and corrosion.
- Building‑Mount Kit: Designed for fixed sites where a longer cable run (up to 10m) is required to place the antenna in the optimal position, such as on a rooftop or high on a wall.
Patch Leads: Low‑Loss SMA to TS9 Cables
Campad offers two lengths of low‑loss patch leads that connect the SMA‑terminated antenna to the LM1200’s TS9 ports:
| Lead Type | Length | Price (AU) | Features |
|---|---|---|---|
| Single‑Antenna SMA Lead | 40cm (standard) | $24.99 | One SMA connector on each end; ideal for single‑antenna setups. |
| Dual‑Antenna SMA Lead | 40cm (standard) | $34.99 | Two SMA connectors on one side, each feeding a separate TS9 port; enables true MIMO operation. |
| Extension Leads | 5m SMA (low‑loss) | $24.99 | Extends antenna distance while preserving signal integrity. |
| 10m SMA (low‑loss) | $39.99 | For installations where the antenna must be placed far from the modem, such as rooftop mounts. |
The cables employ low‑loss dielectric materials and precision‑matched impedance (50 Ω) to minimise insertion loss, preserving the high‑gain advantage of the external antenna. Dual‑lead configurations support simultaneous use of two antennas, allowing the LM1200 to exploit MIMO diversity for improved throughput and reliability.
Mounting Solutions
Wall Plate Kits
- Single‑Port SMA Wall Plate: $19.99. Includes a standard wall‑plate with an SMA insert and a screw‑on SMA connector that secures the patch lead to the rear of the plate.
- Dual‑Port SMA Wall Plate: $38.99. Provides two SMA inserts for dual‑antenna installations, simplifying cable management and protecting connectors from accidental disconnection.
Both kits are compatible with typical drywall, plaster or metal enclosures. The plates can be mounted at any height, allowing the antenna cable to be routed cleanly to the optimal location.
Bull‑Bar Brackets
- Starting at $24.99, these brackets are engineered for the Strike B3 series and other bull‑bar‑mounted antennas. They feature corrosion‑resistant steel, rubber gaskets for vibration damping and pre‑drilled holes for quick bolt‑on installation on vehicle frames.
Building‑Mount Brackets
- Included with the Building‑Mount Kit, the brackets are designed for indoor or outdoor walls, offering a secure anchor point for the antenna and a built‑in cable strain‑relief to protect the SMA connector.
Extension Leads and Power Options
The LM1200 incorporates a USB‑C power input, supporting modern power‑delivery standards and allowing the modem to be powered from a PoE injector, solar controller or standard wall adapter. Extension leads with integrated power pass‑through are available, enabling the modem to be positioned away from the primary power source while maintaining a tidy cable run.
The dual Gigabit Ethernet ports on the LM1200 can be configured as WAN/LAN or both as LAN, providing flexibility for network topology. When paired with a low‑loss extension lead, the modem can be installed in a protected indoor rack while the antenna remains outdoors, preserving both performance and equipment safety.
Practical Deployment Scenarios
| Scenario | Recommended Antenna | Lead & Mounting | Expected Benefit |
|---|---|---|---|
| Urban apartment with weak indoor signal | Pulse Larsen Magnetic (4–5.6dBi) | Single‑Antenna SMA Lead + Wall Plate (single) | Quick, inexpensive boost; magnetic base attaches to metal window frame or balcony rail. |
| Rural farmhouse with distant tower | MIMO Marine (6.5dBi) | Dual‑Antenna SMA Lead + 10m Extension Lead + Building‑Mount Kit | Long cable run to rooftop; dual‑antenna MIMO maximises weak signal capture. |
| Delivery van operating nationwide | Strike B3 Bull‑Bar (7dBi) | SMA Lead + Bull‑Bar Bracket | Robust, weather‑proof mount; maintains high gain while the vehicle is in motion. |
| Marina boat with limited space | MIMO Marine (2.5–6.5dBi) | Single‑Antenna SMA Lead + Marine‑grade brackets (included) | Compact, low‑profile antenna that survives marine environment; improves LTE coverage on the water. |
| Temporary field site (e.g., construction) | 7dBi Magnetic Base | Single‑Antenna SMA Lead + magnetic mounting | Fast deployment; no permanent fixtures required; can be moved as site layout changes. |
Summary
Campad Electronics supplies a complete ecosystem for the Netgear LM1200 modem: high‑gain omnidirectional and magnetic antennas, low‑loss SMA‑to‑TS9 patch leads, wall‑plate and vehicle mounting hardware and cable extensions with power‑delivery options. By selecting the appropriate antenna gain, lead length and mounting solution, users can transform the LM1200 from a modest indoor LTE device into a robust, site‑specific connectivity platform capable of delivering reliable broadband in challenging signal environments.
