Specifications:

Frequency Range: 125~525MHz (UV Version) | 1.5~70MHz (HF Version)
Max Power: 120W
V.S.W.R : 1.00:1~19.99:1
Insertion Loss: Less than 0.3dB
Impedance: 50Ω
Temperature: 0℉~140℉ / 0℃~60℃
Battery Display: Yes
Backlight: Auto off
Auto Power Off: 1-9 minutes
Battery: 3.7V Li-ion Rechargeable Battery
Power input: 5V (Micro USB Charging Cable)
Interface (in and out ): SO239
Dimensions: 2.8 x 3.0 x 1.4 inch / 70 x 75 x 35mm
Weight: 7.76oz / 220g
NOTE: For use with analog two way radios only. Not for use with DMR digital radios.

Troubleshooting Guide

1. The Meter Does Not Power On
• Please charge the battery using a USB cable with a +5V output, or connect it to a compatible power supply unit (PSU).
• Press and hold the "RED" button to turn on the device.
• If the battery is depleted, please replace it with a new one.
• If the issues persist after trying these steps, please contact us for further assistance.

2. Watt/S.W.R. Data Does Not Stabilize
• Some radios may exhibit issues at the end of transmission (TX) where the RF output may not stabilize.

3. Inaccurate Watt Readings
• This device is not compatible with DMR systems.
• Do not attempt to read wattage without an antenna connected.
• Ensure that you are using the correct 50-ohm power dummy load for measurement.
• Data may be erroneous if the device is not reading the frequency from the radio accurately.
• The TX input should be above 0.5 watts for optimal performance.

4. Inaccurate S.W.R. Readings
• This device is not compatible with DMR systems.
• Avoid conducting tests in environments with nearby objects that may interfere with readings.
• Ensure the device is placed horizontally during testing to avoid discrepancies.

5. Frequency Counter Issues or Inaccurate Readings
• For example, if your radio is set to 145.000 MHz but reads as 145.003 MHz, consider the following:
• Input power should be above 0.5 watts for best results.
• Utilize menu mode 3 to fine-tune the frequency offset for accuracy.

6. Display Problems (e.g., Black, Garbled, or No Display)
• Restart the device by removing the internal battery.
• If issues persist after this step, please contact the service center at your retail location for further support.

7. Resetting the Microchip
• To reset, turn off the device, then hold the RED button until the display shows "Restore to Default."
• If issues continue after this procedure, please remove the battery.

What’s in the box?

SW-102 (VHF/UHF Version)
1 x SURECOM SW-102 Power Meter
1 x SO239 to SMA-male Coax Connector
1 x SO239 to SMA-female Coax Connector
1 x SO239 to PL259 Male Coax Connector
1 x SO239 to PL259 Female Coax Connector
1 x Micro USB Charging Cable
1 x English Users Manual


SW-102 (HF Version)
1 x SURECOM SW-102HF Power Meter
1 x SO239 to SO239 Coax Connector
1 x SO239 to BNC Coax Connector
1 x Micro USB Charging Cable
1 x English Users Manual