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[Q] Android API for GPS location

Hi,
I have Hero H7000 GSM phone with Android 2.2.1. Some application which using GPS data show speed approx. 1,9x higher then real speed. First my idea was about some mistake in sw - behaviour looks like as twice conversion from knots (nm/h) to km/h because (km/h = 1,852x nm/h)... But problem is generic for all applications using GPS data. I was use U-Blox app. for NMEA logging, and in RAW NMEA log zero speed is correctly received. But Android API provide 1,29m/s for applications. Do you have some idea where problem is locate? And idea about how to fix it?
Thanks
SDG

ACTUALIZATION: I made NMEA log (approx. 30km by car). In raw NMEA sentences captured by "u-center" is correct speed. Maximum is around 90km/h. But all applications using Android API show twice more. Please, do you have some idea about repair of this bug?
SDG

[APP][4.0+] WiFi Track - A wardriving / wifi survey app

WiFi Track: A wardriving / wifi survey app
WiFi Track is an Android wardriving app - it collects data about wifi networks in range, plots them on a map and lets you search them and see details per each wifi access point. Together with that it can generate lots of interesting charts based on different security settings, channels, manufacturers, mode of operation, etc.
FEATURES
=========
* Real-time network data acquisition and plotting:
- Networks plotted according to basic security type (Open, WEP, WPA)
- Detailed context information available per each wifi network on the map on click
- 2.4GHz / 5 GHz bands supported (if hardware available)
- Scan configurable (wifi scan period configurable depending on moving speed - standstill, walking, driving). GPS scan period also configurable. Several profiles available (High accuracy, Normal, Battery Save)
* Per-network details
- Basic parameters (SSID,BSSID, channel, hardware manufacturer, operating mode (infrastructure vs ad-hoc), etc
- Security parameters (encryption, authentication, WPS, security rating based on a number of parameters)
- Frequency interference with neighbouring networks plus advice to switch to another channel if necessary
- Nearest networks
* Background service mode which is very flexible and configurable:
- Exit at certain battery level
- TTS reports at configurable interval
- Sound notifications on new networks in range
- Distance / new network reporting
- Configurable option to lock wifi and prevent it from disabling on sleep
* Network filters (affect map view and possibly statistics)
You can filter by many criteria.
* Statistics and charts
- Per security type (Open, WEP, WPA, WPA2, WPA/WPA2 Mixed mode)
- Per WPA encryption type (CCMP, TKIP)
- Per manufacturer
- Per frequency band (2.4 vs 5 ghz)
- Per channel (for both 2.4 and 5 ghz ranges)
- Per operating mode (adhoc vs infrastructure)
- WPS enabled charts
- WPA authentication type charts (PSK vs EAP)
- Most often occured SSIDs
- Country the manufacturer is headquartered in and more
- Statistics can be either global or per map view and either affected by filters or not
* SSID search
* Export to KML file (to use with Google Earth)
DOWNLOAD
==========
Available for free (ad-supported) at Google Play:
details?id=com.gat3way.wifitrack
(The forum prevents me from posting URLs before I have 10 posts. That's the reason I can't post screenshots either. Sorry for that)
ABOUT ME
=========
My name is Milen Rangelov and I am more of a UNIX guy, developing GPU hash cracking software and this is my first Android app ever (and the second time I write Java code hehe). I guess there are lots of things to improve. I am open to suggestions and critics. Hope it will get better and better with time.

Thanks let me give it a try

hillz said:
Thanks let me give it a try
Click to expand...
Click to collapse
Hope you'd like it

Why do we need google services for your app? I am running cyanogenmod 11 and have no need to install all the google services till now.
Would be nice if I can give your app a try...

A-GPS SUPL protocol and privacy breaching

Seems that an activated A-GPS breaches privacy on andriod phones.
Here's an interesting read about it:
http://mobilesociety.typepad.com/mo...veals-my-identity-and-location-to-google.html
Seems to be activated on common custom roms as well.
I prefer to remove the SUPL server (supl.google.com) from the gps.conf (system/etc) and having more priacy over a faster gps fix.
I think custom roms should have the SUPL server deactivated by default and display a warning that on activating the SUPL server privacy gets breached.
The blog of the guy who wrote about it has always some interesting stuff to read:
https://blog.wirelessmoves.com/

Afraid just commenting it out won't do much good (but simply revert to some defaults). Better replace supl.google.com by 127.0.0.1 to make sure. OTOH, if someone knows a privacy-friendly SUPL server, I'm all ears.

[ANDROID MODIFICATION] GPS Update rate + baud rate

Hi everyone!
Let's consider that we are talking about rooted devices (with Android).
Where can we find the settings that states the baud rate and the refresh rate/update rate/frequency (in Hz) for the GPS module?
For example, here is a project where we can change the max_rate using:
ro.kernel.android.gps.max_rate=5​(I want 5(5Hz) fixes/second, instead of 1Hz (1 pos/sec)). This project is for a serial GPS device (configuring an USB receiver, let's say).
But there can we find the same settings for the built-in GPS module (MTK chip/Qualcomm, doesn't matter)? I don't think I need a custom ROM for this small modification. Could it be /system/etc/gps.conf ?
Thanks!

Here is the difference between Google's DNS and Cloudfare's DNS.

Hello everyone!
I'm going to tell why, Cloudfare DNS is better than Google DNS and why you must switch.
I know that its been months since cloudfare DNS has been released. But being a Google DNS user, I wanted to jump onto Cloudfare DNS.
Well i checked the difference between them by using a simple Speedtest app, And the difference is massive!
Note - The tests were conducted in the same phone and on the same Wi-Fi network. I haven't tested mobile data because it is not stable in my place.
First of Google -
Ping ms - 6ms
Down speed - 16.6MBPS
Up speed - 9.38MBPS
Now Cloudfare -
Ping ms - 6ms
Down speed - 34.3MBPS
Up speed - 9.22MBPS
Now, how it translates in real-world usage -
The speed difference is noticeably better in cloudfare, Pages take a little lesser time to load and render.
There is no major difference in uploading either. Botu offered almost same speed.
Also, Cloudfare is better because it is putting privacy before anything else. The better speed is also a bonus.
TL;DR - Switch to Cloudfare is better in privacy as well as speed.
Check attachment.