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SW-102-UV Digital VHF/UHF Power & SWR Meter & Frequency counter 
V.S.W.R. meter Introduction

VSWR. Forward and reflected power direct digital readout, without any calibration.
Maximum measurable power range up to 120W.
low insertion loss (0.3 decibels or less) structure allows it to be permanently connected.
Build in Frequency counter .
All Function display ( Frequency,Power , SWR,FW,RW,Battery Level)

Feature & Specification
Frequency range: 125 - 525MHz
Measurable power range: 0.5 - 120W(+-0.5%)
Input  read frequency counter (must be > 0.5 W)
Maximum power: 120W
Impedance: 50Ω
Size: W 76mm X H 77mm X D35 mm.
Weight: < 220 grams
Battery : 3.7V Li-ion Rechargeable Battery

* Not for the DMR digital radio.

Interface: SO239

MAX. Power in    120 W        
(Measurable power,Radio must be ANALOG)
V.S.W.R    1.00~19.9
Frequency Range    COVER : 125MHz~525MHz
Insertion Loss    < 0.15dB(VHF) , < 0.3dB(UHF)
Temperature    0℃~60℃
Frequency counter    Yes (  TX input  must be minimum 0.5W + - 0.5%)
Battery Display    Yes
Battery Build-in    3.7V  Li-ion Battery
Auto Power Off    1-9 mins
Size    66*68*37 (mm)
Charger in     5V (micro usb)
Backlight    AUTO OFF  
Interface (in and out )    SO239
Weight    220g (include battery)

Power ON/OFF:
Press 2 second the [Red button] to power on or power off

MENU Display  (Note: Version for up to V3.8)


No.    Mode    Adj     
Default Setting
1    Adjustment Forward     -99  to  +99    0    Fine Tune Level %
2    Adjustment Reverse     -99  to  +99    0    Fine Tune Level %
3    Adjustment Time Base     -99  to  +99    0    Frequency Counter ,OSC Time Base
4    LCD DIM (Back Light  Time)    0-9    1    "0" is always on,  1 min  to  9 mins
5    POWER OFF    0-9    3    "0" is always on,  1 min  to  9 mins

* Supplier, the product will add functionality without having to give notice

Set & Save​:
​Press MENU [Blue button]
Press F1 [Red button)(Select 1-5 Function)
Press [Blue button] ( - ), [Yellow button] (+)
Press the  [Red button ]for 2 seconds
Press the  [Blue button] to SAVE and EXIT

How to check the S.W.R. of your Antenna :
​Connect to "TX" on Radio output  and Antenna  to "ANT". 
Proper adaptor/cable is required if your device has different type of connectors.
Measurement V.S.W.R. : (see Pic.1)
SW-102 TX connect Radio RF out  
Radio TX , SW-102 with display S.W.R. measure data.
Do not affect the test in the following cases, there are objects nearby, placed horizontally.
How to check the output Watt of your transceiver :
Connect to "TX" on Radio output and dummy Load to "ANT". 
Proper adaptor/cable is required if your device has different type of connectors.

Measurement Power: (see Pic.2)
SW-102 TX connect Radio RF out  
SW-102 ANT connect 50 ohm Dummy Load
Push Radio TX , SW-102 display is Power  measure data.
(SW-102 is not for DMR system)

Package Contents
1x SURECOM  SW-102-UV Power & SWR Meter  (SO239 - connector)
1x Power PSU 100-240V
1x Charger Cable 
 1x English Users Manual


specification subject to change without notice, the information in this document does not of any contract or quote

SW-102 125-525MHz connector V.S.W.R. POWER METER

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