Stable 4G Reception without Complicated Installation
Often, the cellular 4G signal is massively attenuated by thick building walls, leading to slow data rates and connection drops. The JARFT J4GMB-12-OMOA solves this problem as an external 4G omnidirectional antenna at its root. Since it receives signals from all directions simultaneously, it is perfect for locations where multiple cell towers are reachable or where exact alignment of a directional antenna is physically not possible. This way, you optimize your throughput in no time.
Robustness meets highest flexibility
The JARFT 4G outdoor antenna is designed for tough continuous use. The combination of UV-resistant PVC and high-quality N-connectors makes it the first choice for professional installations on masts or walls. To keep signal losses as low as possible, we offer perfectly fitting twin cable lengths. Whether you mount the antenna right next to the router or 10 meters away on the roof – with MIMO technology, you always get the best out of your connection.
Your Path to Highspeed Internet
Forget the tedious search for the best window spot for your router. With the JARFT J4GMB-12-OMOA, you bring reception where it belongs: outside. By using two high-quality N-sockets on the bottom, the connection remains protected from moisture. Simply connect the appropriate cable set, link it to your SMA port on the router, and experience your downloads finally reaching the speed you pay for.
Strengths & Notes at a Glance
- Pro: No alignment required thanks to 360° horizontal beamwidth.
- Pro: High gain (12 dBi) for reliable signal amplification.
- Pro: Multiband support for all European 4G networks.
- Pro: Variable cable lengths (2.5m, 5m, 10m) for maximum flexibility.
- Pro: Includes robust mounting hardware for mast attachment.
- Pro: Weatherproof housing for permanent outdoor use.
- Note: An additional adapter is required for routers with a TS-9 connection.
- Note: Every meter of cable causes attenuation – therefore choose the shortest length possible.
Specifications & Properties
| Manufacturer: | JARFT |
| Model: | J4GMB-12-OMOA |
| Antenna Type: | 4G Omnidirectional Antenna (2x2 MIMO) |
| Frequency Range 1: | 791-862 MHz (4G 800) |
| Frequency Range 2: | 1710-2100 MHz (4G 1800) |
| Frequency Range 3: | 2500-2700 MHz (4G 2600) |
| Gain: | 8 dBi (800 MHz) / 12 dBi (1800/2600 MHz) |
| Impedance: | 50 Ohm |
| VSWR: | max. 1.8 |
| Beamwidth: | 360° Horizontal / 20° Vertical |
| Connectors: | 2 x N-female |
| Dimensions (H x W x D): | 24.8 x 18.0 x 5.5 cm |
| Weight: | 400 g (antenna) |
| Material: | Weatherproof PVC (White) |
| Grounding: | DC-Ground |
Specifications & Properties Antenna Cable
| Manufacturer: | JARFT |
| Model: | CC-NM-SM-D-G |
| Cable Type: | TWIN Antenna Cable |
| Length: | 2.5m / 5m / 10m |
| Impedance: | 50 Ohm |
| Attenuation: |
0.30dB/m @ 800 MHz 0.46dB/m @ 1.8 GHz 0.56dB/m @ 2.6 GHz |
| Capacitance: | 80.3pf/m |
| Inner Conductor: | 1.12mm Copper Wire |
| Insulation: | 2.95mm PE |
| Outer Jacket: | PVC |
| Outer Diameter: | 4.95 mm |
| Color: | Black |
| Connector: | N-plug to SMA-plug |
Scope of Delivery
| 1 x JARFT J4GMB-12-OMOA Multi-Band 4G Omnidirectional Antenna |
| 1 x Mounting bracket for wall or mast installation |
| 1 x Pipe clamp for diameters 30mm - 50mm |
| Optional: Twin antenna cable in chosen length (2.5m / 5m / 10m) |
Frequently Asked Questions (FAQ)
What is the advantage of a 4G omnidirectional antenna?
Unlike directional Antennas, this antenna receives signals from all directions (360°). You don\'t need to know exactly where the cell tower is located, which simplifies installation enormously.
Do I need to align the JARFT J4GMB-12-OMOA?
No, exact alignment is not required. It is sufficient to mount the antenna at a point as high and clear as possible outdoors.
Which cable length is best for the 4G outdoor antenna?
Generally: the shorter the cable, the better the performance. We recommend the 2.5m or 5m version to keep signal attenuation as low as possible.
Does the antenna fit my Speedport or Huawei router?
Yes, the optional twin cables have standardized SMA connectors that fit almost all common 4G routers from major providers.
Is the antenna weatherproof for winter?
Absolutely. The robust housing is designed for temperatures from -30°C to +75°C and easily withstands rain, snow, and UV radiation.
Do I need an adapter for a 4G cube?
Some cube models use TS-9 connections instead of SMA. In this case, you can also find suitable adapters from SMA to TS-9 in our range.
Homepage: https://www.jarft.eu/
Street name: Von-Bargen-Straße 34
Postal code, City: 22041 , Hamburg
Country: Deutschland
E-Mail: hallo@dajb-hamburg.de
