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  ITEM DETAILS
 
Item Name: SURECOM SW-102HF 1.5-70MHz V.S.W.R. and POWER METER sw102
USD 75.00
 
Item Code: SW102HF
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SURECOM SW-102HF 1.5-70MHz V.S.W.R. and POWER METER sw102

  Description
 

SURECOM SW-102 HF 1.5-70MHz   Power & S.W.R. Meter  


V.S.W.R. meter Introduction
V.S.W.R. 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.
All Function display (  SWR, FW power, RW power ,Battery Level)


Feature & Specification
Frequency range: 1.5-70MHz
Measurable power range: 0.5- 120W
Maximum power: 120W
Impedance: 50Ω
Size: W 76 X H 77 X D 35 mm
Weight: < 220 grams
Battery : 3.7V Li-ion Rechargeable Battery


Interface: SO239 Interface

Power measurement range 120 W  (intermittent use)
Measurement range at swr measurement  1.00:1 ~ 19.9:1
Frequency range COVER : 1.5~70MHz
Insertion loss Less than  0.3dB 
Impedance  50ohms
Temperature 0℃~60℃
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 UHF female 
Weight 220g (include battery)

 

Power ON/OFF:

Press 2 second the [Red button] to power on or power off
 



MENU Display

Mode No. Item Adj 
Default Setting
 Content
1 Light off  1  to  9 1 "0" is always on,  1 min  to  9 mins
2 Power Off   0  to  9 3 "0" is always on,  1 min  to  9 mins
3 Adjust Power  0 0 +-99

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

 

 

Set & Save​:
​Press MENU [Blue button]
Press F1 [Red button) (Select 1-3 Function)
Press [Blue button] ( - ), [Yellow button] (+)
Press the  [Red button ]for 2 seconds
Press the  [Blue button] to SAVE and EXIT

How to rotate display  : 
Press and hold Yellow key to rotate display in 180 degree , Press and hold Yellow key to normal .

 

Measure SWR :
​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. :  
SW-102 "TX" connect Radio RF out  
 Radio on transmission  ,  S.W.R. measure data on display

SWR 1.0 1.1 1.2 1.5 2.0 2.5 3.0
Refiected RF power(%) 0 0.22 0.8 4.0 11.1 18.4 25

 If swr is too high 
 If swr of the antenna is too high, see if antenna is correctly frequency , assembled and soldered, or coaxial cable and connector are correctly assembled and soldered. 
Installation location of the antenna, surrounding buildings and so on, can also be a cause of high swr value.

SWR Formulas and Calculations
VSWR can be calculated from various parameters. By definition, VSWR is given as ratio of maximum voltage on the line to the minimum voltage.  

sw33_swrmode
 

 

The same can be expressed in terms of forward and reflected wave voltages.

  sw33_swrmode

 

 

Measure forward RF power
Measure how much RF output power is being applied from a radio equipment an antenna. In case of forward RF power, the more indicator indi- cates RF power,
the more RF power is applied to the antenna, provided that reflected RF power is minimum.

How to check the output power Watt of your transceiver :
Connect to "TX" on Radio output and 50ohms dummy Load to "ANT".  Proper adaptor/cable is required if your device has different type of connectors.
Measurement Power:  
SW-102 "TX" connect Radio RF out  
SW-102 "ANT" connect 50 ohm Dummy Load
 Radio on transmission  , Watts power  measure data on display .

 

Package Contents
1x SURECOM  SW-102HF 1.5-70MHz Power & SWR Meter 
1x Power PSU 100-240V
1x Charger Cable 
 1x English Users Manual

 
 
 

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