www.miniRadioSolutions.com
miniVNA antenna analyzer V224
Analyser Characteristics:
* Frequency coverage 0.1Mhz to 180MHz
* DDS Generator with 0 dBm output
* 2 Ports allow Transmission Measurements e.g. filters, traps
* USB1.1 and USB2 compatibility
* RS232 optional socket for Pocket PC`s or Remote Displays
* Fast Scan (typical 0.6 sec for 500 points)
* Use of an internal Industrial Directional Coupler
* High Reflection Dynamic Range 40dB to 35dB (VSWR 1.06:1 or better)
* Wide Transmission Dynamic Range > 50-55dB
* Measures VSWR, RL, Rs, Z +/-jx, Phase, Cable length, R/L/C
* Finds Minimum VSWR automatically
* Transparent box with LED indicators for the operation status
* In-Circuit-Programming for future firmware CPU upgrades
* Operation from 3.6V Phone Batteries possible (current drawn <150mA)
* Software compatible with Windows and Linux operating systems.
* Save and Load of previous measurements
* Software for Pocket PC available
Software Installation note (for Windows 2000/XP and WIN98):
1.
Download the latest software version from
http://www.miniradiosolutions.com/miniVNA224.zip
2. Download from FTDI web site the latest VCP (Virtual Com Port) for your OS (WIN2000/XP or
WIN98), the chip is FTDI232BM, look at their
web site
http://www.ftdichip.com/Drivers/VCP.htm
the
latest right now for windows 2000/XP is
http://www.ftdichip.com/Drivers/CDM/Win2000/CDM%202.00.00.zip
3. Unzip the minivna2xx.zip into C:/
4. Run the file setup.exe.
5. Follow the software installation program.
6. Plug the analyzer (a new USB connection will be detected) and follow the USB driver installation
using the FTDI downloaded driver.
7. Edit the file analyz.ini file (c:\programs files\antenna network analyzer/analyz.ini) and change the
“Port=?” parameter, port should correspond to the COM port occupy by the new USB driver just
installed (look into windows control panel-peripherals-Com), Example my PC report COM=6, so my
analyz.ini will have Port=6, see the below ini file.
Extract from analyz.ini file
[PARAMETERS]
FMax=180000000
'max
frequency
input
FMin=1000000
'min
frequency
input
Champ=500
'samples
per
screen
Step=1
'samples
step
'---------------------------------------------------
' Common Transmission Line Velocity Factors
' RG-58 ---- 0.66
' RG-174 ---- 0.66
' RG-213 ---- 0.66
' 600 ohm Open Wire ---- 0.92
' CATV Hardline ---- 0.81
InputVelFactor=0,66
'---------------------------------------------------
[PORTSETTING]
Address1=888
'printer port address 1 byte
Port=6
'virtual com port for USB
caloffsetrx=-5
'calibrate to near 0 db for open DUT
caloffsettx=115
'calibrate Transmission mode
caloffsetvalue=5
'calibrate for 50 Ohm load
8. After adjusting the .ini file you can now run the analyzer program “c:\programs files\antenna network
analyzer/minivna2xx.exe”.
Front view with functions & connections
2
