Huawei UML397 USB Modem
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Huawei UML397 USB Modem

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  • Weight
    0.1100 lbs
  • RFWEL DevID
    UML397
  • Manuf P/N
    UML397


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 (NOTE: Need this pigtail to connect this device to antenna cable. It is included in preconfigured kits.)

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.

Pre-Configured Antenna Kits
Outdoor Directional Panel Antennas Kits
10 dBi Directional Panel Antenna kit for 698-2700 MHz operation. Includes 50 ft cable and lightning protection, and all required pigtails/ adapters. More compact than Yagi (dimensions: 26" x 13" x 5") but lower gain.

Also available with 20 ft cable RFWP10-UML397-020 or 100 ft cable RFWP10-UML397-100 or see below to configure custom solution
Outdoor Direction Yagi Antenna Kits (RECOMMENDED)
12 dBi Directional Yagi Antenna kit for 698-2700 MHz operation. Includes 50 ft cable and lightning protection, and all required pigtails/ adapters. Slightly than Panel (dimensions: 35" x 9" x 2") but higher gain.

Also available with 20 ft cable ( RFWY12-UML397-020 ) or 100 ft cable ( RFWY12-UML397-100 ) or see below to configure custom solution
Outdoor Omnidirection Antenna Kits
9 dBi Omni-directional Antenna kit for 698-2700 MHz operation. Includes 50 ft cable and lightning protection, and all required pigtails/ adapters. ONLY recommended if have no dominant signal from specific direction.

Also available with 20 ft cable ( RFW0M9-UML397-020 ) or 100 ft cable ( RFW0M9-UML397-100 ) or see below to configure custom solution
Configurable Outdoor Cellular Antenna Kits

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

CL301103

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

Customize your solution

STEP 1: Your Huawei UML397 USB Modem operates on these frequency bands: LTE Band 5 LTE Band 12 CDMA Band 0 CDMA Band 1. Determine what frequency bands your operator uses here. Then determine compatible antennas based on what your device supports and what your operator supports here.

 

STEP 2: Determine the cable length you need from the outdoor antenna to the Huawei UML397 USB Modem and configure your length here (select N-Male on both ends)

 

STEP 3: Determine if you need a lightning protection device. If you do, you will need a jumper cable.

 

STEP 4: Order the pigtail for your modem below:

PIGUML397 (NOTE: Need this pigtail to connect this device to antenna cable. It is included in preconfigured kits.)

 

STEP 5: If the pigtail's Connector 2 is FME-F you will need an N-Female/FME-F adapter to mate to the N-Male cable in step 2. Alternatively, select an N-Male/FME-M cable in step 2 above (more expensive and less re-usable) to avoid requiring this adapter.

 

Contact us if unsure about any of the steps above or for help configuring your coverage/speed improvement solution or visit our support website to learn more.

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 Signal Improvement Solutions

Broadband Wireless Resources

Reference Engineering Drawings (RFWEL Engr)

Contact us

Device questions

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  • Brand/ Manufacturer
    Huawei
  • Cellular Operator
    US Cellular
  • Device Type
    USB Modem
  • Manufacturer
    Huawei
  • Cellular Radio Specifications
    • Cellular Standard
      4G-LTE
    • Cellular Band
      LTE Band 5, LTE Band 12, CDMA Band 0, CDMA Band 1
    • Cellular Radio Includes External Antenna Port?
      Yes
    • Number of Cellular Antenna Ports
      1
    • Cellular Main Radio Chipset Vendor
      Qualcomm
    • Cellular Main Radio Chipset
      MDM9600
  • Mechanical
    • Weight (lbs)
      0.11
    • Dimensions (inch)
      3.66 x 1.37 x 0.55