Mobile Adhesive SMA Antenna - Lenovo - PR1AS420 - Black
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Product Information
Full details
The Teltonika PR1AS420 is an adhesive-mount mobile antenna designed for users requiring stable cellular connectivity in industrial or vehicle-based wireless applications. It offers reliable signal reception across common frequency bands with a low-profile design, though its 2 dBi gain is optimized for localized or secondary signal enhancement rather than extreme long-range reach.
All features
| Colour | Black |
|---|---|
| Model Part Number | PR1AS420 |
| Brand | Lenovo |
Extended Product Information
FAQs
Does this antenna require a power source?
No, this is a passive antenna and does not require an external power supply.
Can I use this for Wi-Fi?
This antenna is designed for cellular frequency bands (0.824-0.96/1.71-2.17 GHz) and is not optimized for standard 2.4 GHz or 5 GHz Wi-Fi frequencies.
Is the cable detachable?
No, the 3-meter RG174 cable is permanently attached to the antenna unit.
Can it be mounted outside a vehicle?
While the antenna is durable, it is primarily designed for interior use; ensure it is protected from direct high-pressure water if mounted externally.
What does the 50 Ohm impedance mean for compatibility?
Most professional cellular modems and routers use a 50 Ohm system; this antenna is perfectly matched for that standard to ensure maximum signal transfer efficiency.
Troubleshooting
Intermittent signal drops
Check the SMA connection point for tightness and ensure the cable has no sharp kinks or damage.
Weak signal performance
Verify the antenna is placed away from large metal objects that might shield the signal and consider repositioning it closer to a window or exterior panel.
Pros and Cons
Pros
- Extremely low-profile design fits in restricted spaces
- Generous 3-meter cable allows for optimal placement
- High operating temperature range for industrial durability
- Standard SMA interface ensures universal compatibility
Cons
- Lower 2 dBi gain limits effective range in weak signal areas
- Adhesive mount is permanent and not ideal for frequent relocation
- Fixed cable length may create excess slack in small installations
Setup, Compatibility & Care
Installation is straightforward due to the adhesive backing. First, clean the mounting surface with isopropyl alcohol to ensure a strong bond. Peel the backing and press firmly into the desired location. When routing the RG174 cable, ensure it is not pinched or bent at a sharp angle to maintain signal integrity. The antenna is RoHS compliant and designed to withstand high humidity, making it suitable for automotive and industrial equipment environments. Periodically check that the SMA connector is tightened securely to the device port to prevent signal loss from vibrations.