« Archives in April, 2011

[Part 2] 1/2 wave 40 meter band dipole construction

The center insulator is constructed out of:
6″ x 1 1/4″ UV resistant water pipe
2 x 3/4″ end caps
1 x female N panel mount
240V electrical wire
2 x 5mm dia. ring terminals

Antenna itself:
~20 meter 2mm galvanized wire rope, ~9.5 meters per side
4 x 3mm wire rope clamps
2 x ceramic insulators

Android (Google) Collecting Your Data

Apparently Android (Google) are gathering location information as part of their race to build massive databases capable of pinpointing people’s locations via their cellphones. Android devices keep a record of the locations and unique IDs of the last 50 mobile masts that it has communicated with, and the last 200 Wi-Fi networks that it has “seen”.

This post is more a of a guide to help limit the leakage of data.

This is a scripted I knocked up a while ago and have been using for fresh installs of OxygeN ROM to remove the Google stuff I not use before I enter SIM unlock code and log into the phone. All that is left is enough Google stuff to keep market happy, along with Droidwall and allowing apps you want access to the Internet my 3G signal status never goes green ie mean my phone logged into Google.

With doing this I have also noticed that my location information is not being logged to cache.wifi and cache.cell under /data/data/com.google.android.location/files

#!/bin/sh

## edit path to adb
PATH=/home/<user>/bin/android-sdk-linux_86/platform-tools

$PATH/adb remount
$PATH/adb shell rm -f /system/app/GenieWidget.apk
$PATH/adb uninstall com.google.android.apps.genie.geniewidget

$PATH/adb shell rm -f /system/app/Gmail.apk
$PATH/adb uninstall com.google.android.gm

$PATH/adb shell rm -f /system/app/GoogleBackupTransport.apk
$PATH/adb uninstall com.google.android.backup

$PATH/adb shell rm -f /system/app/GoogleCalendarSyncAdapter.apk
$PATH/adb uninstall com.google.android.syncadapters.calendar

$PATH/adb shell rm -f /system/app/GoogleContactsSyncAdapter.apk
$PATH/adb uninstall com.google.android.syncadapters.contacts

$PATH/adb shell rm -f /system/app/GooglePartnerSetup.apk
$PATH/adb uninstall com.google.android.partnersetup

$PATH/adb shell rm -f /system/app/Talk.apk
$PATH/adb uninstall com.google.android.talk

wait 1

echo "All Done, rebooting now"
$PATH/adb reboot

You can also block the following using DroidWall, to try and keep all bases covered:

  • Settings > Location & security and unchecked the “Use wireless networks” box
  • Network Location, Google Calendar Sync, Google Services Framework, Google Contacts Sync
  • (Kernel) – Linux kernel
  • Maps

Reference:
http://www.guardian.co.uk/technology/2011/apr/21/android-phones-record-user-locations?CMP=twt_gu

1/2 wave 40 meter band dipole construction

This is my attempt to make a half decent dipole using galvanized 2mm wire rope and galvanized wire rope clamps. 1 1/4″ UV protected water pipe, female panel mount N connector and electrical wire which will be made to be as waterproof as possible.

[LINK] Screen Protector Installation

This guide illustrates techniques I’ve used successfully over many PDAs and phones, and each time I get a PERFECT install, no dust or bubbles and almost always perfectly even edge-to-edge positioning. Yes, you’ll need a steady hand and a bit of practice, but it’s not as bad as you think, and this technique has worked for me every time.

http://forum.xda-developers.com/showthread.php?t=1015394

[LINK] Your Next Smartphone May Sport a See-Through Solar Power Screen

Now here’s an incredible idea: A super-thin transparent screen coating for smartphones that could continuously top off your battery with solar power.

http://www.fastcompany.com/1742124/your-next-smartphone-may-sport-a-see-through-solar-power-screen