Huawei UML397 USB Modem
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Huawei UML397 USB Modem

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  • Weight
    0.1100 lbs
  • Manuf P/N

Signal Improvement Solutions (Cellular)
Huawei UML397 USB Modem includes an antenna port to attach external cellular antennas. See below for different options for high gain and high performance indoor and outdoor antennas to improve the signal strength and indoor coverage. Additionally, see below for RF bidirectional amplifiers/ distributed antenna systems/ repeaters/ small cells to further improve indoor coverage without directly attaching pigtail/ cable the device.
Pigtail for External Cellular Antenna

PIGUML397 (need this pigtail to connect this device to existing antenna installations -- kits below already include it)

Search Cable Adapters

Pigtails for other devices

Pre-Configured Outdoor Cellular Antenna Kits

See below for the most popular LTE antenna kits to boost the signal of your Huawei UML397 USB Modem. If none of these pre-configured kits works for you, see below for manual selection of choice of antenna, cable length, lightning protection, etc.

Antenna RFWEL SKU Antenna Specifications Cable Length Ligthning Protection
Outdoor Directional Panel Antennas Kits
RFWP10-UML397-020 698-960 / 1700-2700 MHz, 10dBi, 65° / 15°, 26" x 13" x 5" 20'
RFWP10-UML397-050 50'
RFWP10-UML397-100 100'
Outdoor Direction Yagi Antenna Kits
RFWY12-UML397-020 698-960 / 1710-2700 MHz, 12dBi, 70° / 60°, 35" x 9" x 2" 20'
RFWY12-UML397-050 50'
RFWY12-UML397-100 100'
Outdoor Omnidirection Antenna Kits
RFW0M9-UML397-020 690-2700 MHz, 9dBi, Φ2" x 9" 20'

RFW0M9-UML397-050 50'
RFW0M9-UML397-100 100'
Configurable Outdoor Cellular Antenna Kits

You may also configure the kit below (select antennas, cable lengths, and choice of lightning protection)


Cellular Repeaters/ Bi-Directional Amplifiers

Because the Huawei UML397 USB Modem device has an external antenna port you could use the high gain external antenna kits above to boost your signal. However, if your outdoor signal is very weak, or you require a very long cable run to get from the outdoor antenna to the device (long runs lead to large signal loss) consider using an RF bidirectional amplifier/ repeater suitable for the supported bands and cellular operator to boost your indoor coverage:

LTE Antenna Boosters/ RF Bidirectional Amplifiers/ Repeaters/ Relays

Other Select Indoor/ Outdoor Cellular Antennas

To use your Huawei UML397 USB Modem in a vehicle, consider the LTE antennas below.

Vehicle LTE Antennas

See below for other LTE antennas or contact us if you cannot find what you are looking for

Other LTE Antennas

Wireless Site & Infrastructure Solutions

See below for wireless site components to integrate Huawei UML397 USB Modem to your wireless infrastructure

Outdoor Radio Enclosure

Low loss RF Cables

Other Wireless Site Accessories

Power Solutions

See below for alternate and portable power solutions for Huawei UML397 USB Modem

Portable Power Solutions

Additional Device Support

Discuss in the Forums (user community input)

Learn More about LTE

Broadband Wireless Resources

Reference Engineering Drawings (RFWEL Engr)

Contact us

Device questions

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  • Brand/ Manufacturer
  • Cellular Operator
    US Cellular
  • Device Type
    USB Modem
  • Manufacturer
  • Cellular Radio Specifications
    • Cellular Standard
    • Cellular Band
      LTE Band 5, LTE Band 12, CDMA Band 0, CDMA Band 1
    • Cellular Radio Includes External Antenna Port?
    • Number of Cellular Antenna Ports
    • Cellular Main Radio Chipset Vendor
    • Cellular Main Radio Chipset
  • Mechanical
    • Weight (lbs)
    • Dimensions (inch)
      3.66 x 1.37 x 0.55