Collection of RFI CSM550-1.5M-SMA ultra compact 5G/LTE antenna, product view in a gallery layout
Collection of RFI CSM550-1.5M-SMA antenna, bottom view showing SMA connector and mounting thread in a gallery layout
Collection of RFI CSM550-1.5M-SMA antenna, top view in a gallery layout
  • Collection of RFI CSM550-1.5M-SMA ultra compact 5G/LTE antenna, product view in a gallery layout
  • Collection of RFI CSM550-1.5M-SMA antenna, bottom view showing SMA connector and mounting thread in a gallery layout
  • Collection of RFI CSM550-1.5M-SMA antenna, top view in a gallery layout

RFI CSM550-1.5M-SMA 5GRN Ultra Compact Antenna, 617-5925MHz, 1.5m LL100, SMA(M)

$125.12

GST Inclusive. Discounts and Shipping calculated at checkout.

Quantity

Pickup available from the Mobile Systems Showroom: 1/14 Portside Drive, Mount Maunganui. We will notify you when your order is ready for collection.

In stock, ready to be shipped

RFI CSM550-1.5M-SMA 5GRN Ultra Compact Antenna, 617–5925MHz, 1.5m LL100 Cable, SMA Male

The RFI CSM550-1.5M-SMA is an ultra-compact, omni-directional 5G NR antenna providing excellent coverage for M2M/IoT, fixed data, and mobile applications across 617–5925MHz. Supplied with 1.5m LL100 low-loss cable, terminated with an SMA Male connector.

Overview

The CSM550 series is built for space-constrained installations where a discreet, weatherproof antenna is needed. Its ultra-compact housing (just 50mm diameter, 50.8mm tall) suits both indoor and outdoor applications, and it covers all major 5G, 4G LTE, and 3G cellular bands with a single antenna.

The screw mount features an anti-rotation mechanism and an integrated double-sided foam seal, giving a secure, weatherproof fit on an 11.9mm stud mount. Being ground plane independent, it performs consistently regardless of where it's mounted, without needing a large metal surface underneath.

Key Features

  • Covers 617–5925MHz means one antenna supports 5G NR, 4G LTE, and 3G across every major cellular band, for future-proof connectivity.
  • Ground plane independent design means consistent performance regardless of mounting location or surface.
  • Ultra-compact housing (Ø50 x 50.8mm) means a discreet fit in space-constrained installations.
  • IP69 weatherproof rating means reliable performance outdoors in harsh conditions.
  • Screw mount with anti-rotation mechanism means a secure fit that won't loosen from vibration.
  • Supplied with 1.5m LL100 low-loss cable and SMA Male connector means straightforward integration with routers, modems, and IoT gateways.

Applications

  • M2M and IoT devices
  • Fixed wireless data applications
  • Vehicle and fleet telematics
  • Remote monitoring and industrial equipment
  • Indoor and outdoor installations where space is limited

What's in the Box

  • 1 x RFI CSM550-1.5M-SMA ultra-compact antenna
  • 1.5m LL100 low-loss cable, fitted with SMA Male connector

Key Specifications

Brand RFI
Model CSM550-1.5M-SMA
Frequency / Gain (peak) 617-960MHz: 2.9dBi / 1427-2690MHz: 2.1dBi / 3300-5000MHz: 0.5dBi / 5150-5925MHz: -1.0dBi
VSWR <2.3:1 / <2.1:1 / <2.0:1 / <1.6:1 (by band, as above)
Power handling 25W
Impedance 50 ohms
Polarisation Linear
Radiation pattern Omni-directional
Dimensions Ø50 x 50.8mm
Materials ASA radome, Zamak base, double-sided foam gasket
Colour Black
Mounting Screw mount, 11.9mm stud, anti-rotation mechanism
Operating temperature -40 to +85°C
Certification RoHS / IP67 / IP69
Cable 1.5m LL100 low-loss
Connector SMA Male

Download the RFI CSM550 Series specification sheet (PDF)

Complete Your Setup

Need to mount this antenna on a wall or flat surface instead of using its built-in screw mount? See the RFI CSM500-PWMB wall mounting bracket, a genuine RFI accessory compatible with this antenna.

Other Options in This Series

RFI also makes this antenna in 5m LL100 cable lengths (SMA Male, N Male, or No Connector) and a 1.5m FME Female variant. None of these are currently listed in this store.

Video

No product video currently available for this model.

Why Buy From Mobile Systems Limited?

Mobile Systems Limited supplies professional cellular connectivity solutions throughout New Zealand. Our experienced team can assist with:

  • Antenna selection for space-constrained installations
  • IoT and M2M connectivity solutions
  • Vehicle router and modem installations
  • Industrial networking solutions
  • Cellular signal optimisation
  • Ongoing technical support

Whether you're deploying a single IoT device or a fleet of connected equipment, we'll help you choose the right antenna for your application.

Frequently Asked Questions

What frequencies does the CSM550-1.5M-SMA support?

The antenna covers 617–5925MHz, supporting 5G NR, 4G LTE, and 3G cellular bands.

Does it need a large ground plane to work?

No. It's a ground plane independent design, so it performs consistently regardless of the mounting surface.

Is it suitable for outdoor use?

Yes. It carries an IP69 weatherproof rating and operates from -40°C to +85°C.

What connector does it use?

It's supplied with a 1.5m LL100 low-loss cable terminated with an SMA Male connector.

How is it mounted?

It uses a screw mount on an 11.9mm stud, with an anti-rotation mechanism and integrated double-sided foam seal for a secure, weatherproof fit.

Can Mobile Systems Limited install this antenna?

Yes. We supply and install professional cellular antennas, routers, and complete connectivity solutions throughout New Zealand.

Specifications

Brand: RFI

Frequency MHz: 617-960 / 1427-2690 / 3300-5000 / 5150-5925

Tuned Bandwidth: Full, no tuning required

Radome Diameter mm: 50

VSWR: <2.3:1 / <2.1:1 / <2.0:1 / <1.6:1 (by band, as above)

Nominal Gain [dBi]: 2.9 / 2.1 / 0.5 / -1.0 (by band, as above)

Power [W]: 25

Cable And Connector: 1.5m LL100 coax terminated with SMA male connector

Height mm: 50.8

Packaging: Clear bag

Antenna Type: Low Profile, Omni-Directional, SISO

Antenna Application: IoT and M2M, Terminal Antenna

Antenna Configuration: SISO

Collection of RFI CSM550-1.5M-SMA ultra compact 5G/LTE antenna, product view in a gallery layout

RFI CSM550-1.5M-SMA 5GRN Ultra Compact Antenna, 617-5925MHz, 1.5m LL100, SMA(M)

$125.12