New version - 0.4
Posted: Sun Sep 23, 2012 10:12 pm
Hi all,
I've developed a new version of the Android application (0.4) which is now available for download from my web page.
The downloadable user guide (in pdf format) can be downloaded from here: http://www.yo3ggx.ro/btvna/btvna_v0.4.pdf
An online user guide is available here: http://www.yo3ggx.ro/btvna/doc/btvna.html
You can discuss about this new version on the dedicated forum here: http://www.yo3ggx.ro/forum/viewforum.php?f=4
What's new in version 0.4:
Generator mode added with the following features:
- large DIGITS;
- extremely easy and intuitive operation, even with small screen devices;
- possibility to manually enter the frequency through a numeric keypad;
- working in manual frequency set or continuous (live) mode;
- rotary knob to change the frequency in both manual or live modes;
- Fast/Slow (100Hz/10Hz) steps through the knob or manual ±1 Hz steps;
- lock mode to prevent accidentally settings changes;
- KHz or MHz scale;
- frequency calibration can now be done in a very intuitive way from Generator mode (see section in manual);
CABLE data mode added with the following features:
- large display objects;
- extremely easy and intuitive operation, even with small screen devices;
- no graphs, no specific procedures to follow, everything is done automatically;
- just connect the CABLE at the DUT connector with the other end open;
- include a List of well-known coax CABLE and their Velocity Factor;
- measure and calculate CABLE length from less than 1m to hundreds of meters with a simple click;
- CABLE length is measured in 2 steps for better accuracy;
- operate in meter or feet mode;
- measure CABLE loss for different frequencies from 1 To 180 MHz;
- can work in Offline mode if the CABLE was measured before (even in ANTENNA mode) and data saved;
- replace standard Android keyboard with a big numeric keypad when entering a custom frequency range;
- long press on SET button to exit the custom frequency entry panel;
- menu elements redistributed;
- some other small cosmetic changes.
Bugs solved:
- first time you need to click two times in the left of the graph to go in full screen mode;
- marker info and min SWR info does not disappear when switching to another band with no data;
- if changing mode during customized frequency range setting the panel is not cleared;
- Java error ("Invalid Double") when dragging the marker over ranges where SWR is very high;
- other small bugs.
Features to be implemented in future versions:
- X-tals measurement;
- filters measurement;
- L/C measurement.
Known not (yet) solved bugs as of version 0.4:
- some sporadic Java errors in Bluetooth operation (the VNA is not yet automatically recognised);
I kindly ask you to send me your feedback if you try it.
--
73 Dan YO3GGX
I've developed a new version of the Android application (0.4) which is now available for download from my web page.
The downloadable user guide (in pdf format) can be downloaded from here: http://www.yo3ggx.ro/btvna/btvna_v0.4.pdf
An online user guide is available here: http://www.yo3ggx.ro/btvna/doc/btvna.html
You can discuss about this new version on the dedicated forum here: http://www.yo3ggx.ro/forum/viewforum.php?f=4
What's new in version 0.4:
Generator mode added with the following features:
- large DIGITS;
- extremely easy and intuitive operation, even with small screen devices;
- possibility to manually enter the frequency through a numeric keypad;
- working in manual frequency set or continuous (live) mode;
- rotary knob to change the frequency in both manual or live modes;
- Fast/Slow (100Hz/10Hz) steps through the knob or manual ±1 Hz steps;
- lock mode to prevent accidentally settings changes;
- KHz or MHz scale;
- frequency calibration can now be done in a very intuitive way from Generator mode (see section in manual);
CABLE data mode added with the following features:
- large display objects;
- extremely easy and intuitive operation, even with small screen devices;
- no graphs, no specific procedures to follow, everything is done automatically;
- just connect the CABLE at the DUT connector with the other end open;
- include a List of well-known coax CABLE and their Velocity Factor;
- measure and calculate CABLE length from less than 1m to hundreds of meters with a simple click;
- CABLE length is measured in 2 steps for better accuracy;
- operate in meter or feet mode;
- measure CABLE loss for different frequencies from 1 To 180 MHz;
- can work in Offline mode if the CABLE was measured before (even in ANTENNA mode) and data saved;
- replace standard Android keyboard with a big numeric keypad when entering a custom frequency range;
- long press on SET button to exit the custom frequency entry panel;
- menu elements redistributed;
- some other small cosmetic changes.
Bugs solved:
- first time you need to click two times in the left of the graph to go in full screen mode;
- marker info and min SWR info does not disappear when switching to another band with no data;
- if changing mode during customized frequency range setting the panel is not cleared;
- Java error ("Invalid Double") when dragging the marker over ranges where SWR is very high;
- other small bugs.
Features to be implemented in future versions:
- X-tals measurement;
- filters measurement;
- L/C measurement.
Known not (yet) solved bugs as of version 0.4:
- some sporadic Java errors in Bluetooth operation (the VNA is not yet automatically recognised);
I kindly ask you to send me your feedback if you try it.
--
73 Dan YO3GGX