1. પરિચય
The Surecom SW-102 is a compact and versatile digital VHF/UHF antenna power and SWR meter designed for radio enthusiasts and professionals. It provides direct digital readout of VSWR, forward power, and reflected power without the need for calibration. Its low insertion loss allows for permanent connection within your setup. The device also features a built-in frequency counter and displays comprehensive information including frequency, power, SWR, forward power (FW), reflected power (RW), and battery voltage.
2. સલામતી માહિતી
- ઉપકરણને અતિશય તાપમાન, ભેજ અથવા સીધા સૂર્યપ્રકાશમાં ન લો.
- ઉપકરણને પડતું મૂકવાનું કે ગંભીર અસર થવાનું ટાળો.
- ઉપકરણને ડિસએસેમ્બલ કરવાનો કે સુધારવાનો પ્રયાસ કરશો નહીં. આ વોરંટી રદ કરશે અને નુકસાન પહોંચાડી શકે છે.
- Use only the specified charger (5V micro USB) to prevent damage to the battery and device.
- Ensure proper connection of all cables and adapters before operation to prevent damage to the meter or connected equipment.
- This device is designed for analog radio systems only and is not compatible with DMR radios.
3. પેકેજ સામગ્રી
પેકેજ ખોલતી વખતે, કૃપા કરીને ખાતરી કરો કે નીચે સૂચિબદ્ધ બધી વસ્તુઓ હાજર છે અને સારી સ્થિતિમાં છે:
- 1x SURECOM SW-102 Meter
- 1x Charger Cable (Micro USB)
- 1x Users Manual
- SL16 to SMA-F Connector (included)
- SL16 to SMA-M Connector (included)

4. ઉત્પાદન ઓવરview
4.1. મુખ્ય લક્ષણો
- Direct digital readout of VSWR, Forward Power, and Reflected Power.
- કોઈ માપાંકનની જરૂર નથી.
- Maximum measurable power range up to 120W.
- Low insertion loss (<0.15dB VHF, <0.25dB UHF) allows permanent connection.
- Built-in Frequency Counter.
- All-function display: Frequency, Power, SWR, FW, RW, Battery voltage.
- Compact and handheld size with large LCD display.
4.2. ઘટકો અને નિયંત્રણો



The SW-102 features an N-J Interface for connections. Optional accessories such as SL16 to SMA and SL16 to BNC adapters are available to ensure compatibility with various radio and antenna connectors.

5. સેટઅપ
5.1. Connecting the Meter
To connect the Surecom SW-102, connect the output of your transceiver to the "TX" port on the meter. Then, connect your antenna or dummy load to the "ANT" port. Ensure proper adapters or cables are used if your device has different connector types. The device ships with SL16 to SMA-F and SL16 to SMA-M connectors for common applications.
Watch the video below for a visual guide on connecting the SW-102 to your radio and antenna:
Video 5.1: Demonstration of unboxing, physical overview, and connecting the Surecom SW-102 to a radio and antenna for SWR measurement.
5.2. પાવરિંગ ચાલુ
To power on the SW-102, press and hold the લાલ બટન for 2 seconds. To power off, press and hold the લાલ બટન ફરીથી 2 સેકન્ડ માટે.
6. ઓપરેટિંગ સૂચનાઓ
6.1. માપન લેવું
Once connected and powered on, the SW-102 will display real-time measurements. To measure SWR and power, ensure the meter is in a vertical position and avoid touching the antenna during measurement. Press the PTT (Push-To-Talk) button on your radio to transmit, and the meter will display the VSWR, transmit power, and other relevant data.
વોલ્યુમtage Standing Wave Ratio (VSWR) is an indication of the amount of mismatch between an antenna and the feed line connecting to it. The range of values for VSWR is from 1 to ∞. A VSWR value under 2 is considered suitable for most antenna applications. The antenna can be described as having a good match. So when someone says that the antenna is poorly matched, very often it means that the VSWR value exceeds 2 for a frequency of interest.
Video 6.1: Demonstration of taking SWR measurements with the Surecom SW-102, including proper positioning and interpreting the display.
6.2. પરિચય દર્શાવો
The LCD display provides comprehensive information at a glance. Key indicators include:
- બેટરી સ્થિતિ
- કામ કરવાનો સમય
- ટ્રાન્સમિટ પાવર (W)
- ટ્રાન્સમિટ ફ્રીક્વન્સી (MHz)
- VSWR (વોલ્યુમtage સ્ટેન્ડિંગ વેવ રેશિયો)
- Forward Power (FW)
- Reflected Power (RW)
Video 6.2: Detailed introduction to the Surecom SW-102's display, explaining each parameter and its significance.
6.3. Function Memory Save
To save function memory settings:
- દબાવો MENU (Blue button).
- દબાવો F1 (Red button) to select a function (1-6).
- ની મદદથી મૂલ્યોને સમાયોજિત કરો Blue button (-) અને Yellow button (+).
- દબાવો લાલ બટન પુષ્ટિ કરવા માટે 2 સેકંડ માટે.
- દબાવો વાદળી બટન to SAVE and EXIT.
7. જાળવણી
7.1. બેટરી ચાર્જ કરી રહી છે
The SW-102 is equipped with a 3.7V Li-ion rechargeable battery (14500 type). To charge the device, connect the provided USB charger cable to the micro USB port on the side of the meter and plug the other end into a 5V (0.5-1A) USB power source.

Video 7.1: Instructions on how to charge the Surecom SW-102 using the provided USB cable.
7.2. Power Saving Features
- આ ઉપકરણમાં એક ઓટો પાવર બંધ function, configurable from 1 to 9 minutes.
- આ બેકલાઇટ also has an AUTO OFF feature, configurable from 1 to 9 minutes, to conserve battery life.
8. મુશ્કેલીનિવારણ
- If the device does not power on, ensure the battery is charged.
- If readings are inconsistent, check all cable connections for tightness and proper adapter usage.
- Ensure the SW-102 is used with analog radios only. તે છે not compatible with DMR radios.
- For significant discrepancies in SWR readings, verify the antenna's condition and proper installation.
9. સ્પષ્ટીકરણો
| લક્ષણ | સ્પષ્ટીકરણ |
|---|---|
| આવર્તન શ્રેણી | ૭૬ - ૧૦૮ મેગાહર્ટ્ઝ |
| Measurable Power Range | ૩૫૧ - ૫૦૦ વોટ |
| મહત્તમ પાવર ઇનપુટ | 120W |
| ચોકસાઈ | +/- 5% |
| VSWR રેન્જ | 1.00 ~ 19.9 |
| અવબાધ | 50Ω |
| Insertion Loss (VHF) | <0.15dB |
| Insertion Loss (UHF) | <0.25dB |
| ઓપરેટિંગ તાપમાન | 0℃ ~ 60℃ |
| Input Frequency Counter | હા |
| બેટરી વોલ્યુમtage ડિસ્પ્લે | હા |
| બેટરીનો પ્રકાર | 3.7V Li-ion Rechargeable Battery (14500) |
| ઓટો પાવર બંધ | 1-9 minutes (configurable) |
| ચાર્જર ઇનપુટ | 5 વી (માઇક્રો યુએસબી) |
| બેકલાઇટ ઓટો બંધ | 1-9 minutes (configurable) |
| Interface (In and Out) | N (SL16) |
| કદ | 66*68*37 (મીમી) |
| વજન | 220 ગ્રામ |
| વસ્તુનું વજન | 13.4 ઔંસ |
| પેકેજ પરિમાણો | 7.76 x 5.43 x 1.81 ઇંચ |
10. વોરંટી અને સપોર્ટ
Specific warranty information and detailed support contacts are not provided in this manual. Please refer to the product packaging or the manufacturer's official website for warranty details and customer support options.