Widespread Augmented Reality

Widespread Augmented Reality
Click on the image to get the Android Augmented Reality Heads up Display

Thursday, October 29, 2020

Fix Corrupted USB Flash Drive

 After flashing a 32GB drive to make it bootable, Windows now shows the drive to only be 2 GB.  Bad.


1) Type "DISKPART" from the Command Prompt 
2) Type "LIST DISK" to see what number your USB drive is listed as.
3) Type "SELECT DISK 2" 
4) Type "SELECT PARTITION 1" 
5) Type "DELETE PARTITION" or "DELETE PARTITION OVERRIDE"
6) Type "CLEAN". 
7) Type "CREATE PARTITION PRIMARY" to create a new, full-size partition.
8) Type "EXIT"

 


 

Wednesday, October 28, 2020

Ham Radio Contact Logger

 Files are at https://drive.google.com/drive/folders/1VCIqpKraauZ7OYZ9OimEljXIM6yhNBpz?usp=sharing

1. Download the apk for direct installation

2. Source is in HamSandwich.7z



 

You Do You and I Do Me

 

This is what I do not get.

When people cry for change, what change are they specifically requesting that would directly and significantly alter their current station in life for the better?

I could get behind specifics on an individual level, but a macro cry for change smacks of a vacuous emotional reaction to how the wind is blowing and a blissful ignorance of what is really going on inside oneself. Charity starts at home, so first take care of what you have direct control over, e.g. your damn sorry ass self.
 

 

Android Studio - Importing Vector Images into Drawables Folder

1. Right click on "drawable" folder

2. Select the New option

3. Select Vector Asset

4. Now this is super-intuitive, but you need to click on the black icon

5. This brings up a search panel with available icons.



Tuesday, October 27, 2020

Cubic SDR, Nooelec Nesdr Mini 2+ and a P25 Repeater

Given a P25 repeater at frequency 445.720 MHz (PAPA System Repeater), one can:

1. Fire up Cubic SDR

2. Select the Nesdr Mini 2+

3. Point the audio to Virtual Audio cable

4. And start DSD +.

This setup will automatically decode the digital signal to voice through the PC speaker.  In addition, it will show you the P25 settings should you want to program a real world transciever:

1. NAC (Network Access Code) 4CD

2. Talk Group 31077

 Screen shots:

  




 

 

 

 

Sunday, October 18, 2020

Set Up BaoFeng UV-5R for Papa System Amateur Radio (HAM) Repeater

Here are the Papa Repeaters: http://www.papasys.com/dmr/RPT-PAGE/

Here is a BaoFeng: https://baofengtech.com/uv-5r

Here is radio programming software: https://chirp.danplanet.com/projects/chirp/wiki/Home

One must set the PL (CTCSS) and the repeater's negative offset.

1. Using CHIRP:

2. Using menus on the device:







Wednesday, October 14, 2020

Wednesday, October 7, 2020

DSD Plus and Virtual Audio Cable - Audio Input Device Open Failed

Thank you Windows update.  When I went to run DSDPlus.exe, I got the error message:  "Audio Input Device Open Failed".

After wasting time disabling and enabling devices in Sound Settings and reinstalling both DSD Plus and Virtual Audio Cable, I realized that "Allow Desktop Apps Access to Your Microphone" was turned off.

Need to turn it back on.






Thursday, October 1, 2020

HackRF, GNURadio and transmit WAV in NBFM

Here are two flow graphs. The first one works; the second one, not so much.  Analyzing why.


 This one was culled from https://youtu.be/0eamh3r2V1I