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Nokia N900 review


Nokia N900

N900 is the first Nokia’s mobile phone that runs on Linux. The Maemo 5 software platform has evolved from previous Internet Tablet products to fulfill all mobile phone needs. N900 comes equipped with a lot of applications and features. This review focuses on usability while on the road and some characteristics that differentiate the N900 from Symbian based mobile phones.

User Interface

The UI uses 4 desktops. One desktop is visible at a time and it is changed by sweeping the display with a finger to the left or right. All desktops can show application shortcuts and widgets. I have picked up the most used applications and contacts to the desktop with some additional widgets. Calendar widget provides a quick look to upcoming meetings and events. Weather widget shows a 4 day forecast without opening up a web browser. E-mail and Facebook widgets keep me in sync with all my contacts.

Desktop

Touching the upper left corner brings in the application menu. It allows you to access also the device settings. Contact list and a numeric keypad are available via shortcuts on a desktop and also via menu.

Application menu

The UI is clean and easy to use. Icons are large enough to operate with fingers. The N900 is equipped with a stylus if precise operation is needed. I have used the stylus mainly to navigate through small links on a Facebook. The touchscreen is based on resistive technology, which is not as sensitive as the capacitive one in iPhone. Only one finger is used to operate the N900, since resistive technology does not support multi-touch feature. I have not felt that this is a limitation, since the N900 UI has been designed for resistive technology.

The N900 supports multi-tasking, which means that several applications can be open at a same time. Multi-tasking works very well and switching between applications is done via the application menu icon. Touching the upper left corner shows up miniaturized versions of all open applications. There’s plenty of memory on the device and it has never run out during my heavy testing of various features. Multiple applications can really run simultaneously. There’s approximately 27 GB of free memory available and it can be expanded with a microSD memory card.

Phone functionality

The N900 is a four band phone that operates on 3G networks. Calling and sending and receiving short messages are naturally supported. One surprise is that multimedia messages are not support. So you cannot send those modern post cards to your friends while traveling with this device. It also means that you cannot receive them either. The best way to share photos is to use then Internet photo sharing sites or send them as e-mail attachments.

Web browsing

Web browsing is one of the strongest features on N900. The browser displays most of the web sites brilliantly and supports also Flash. All the Flash based menus, animations, and videos run smoothly. The web experience is quite close the same as with laptops. The main difference is the screen size, although the N900 has a high resolution 840 x 480 pixel display.

Web sites can be zoomed in by double tapping or rotating finger clockwise on the screen. Another double tap or rotating finger counter clockwise zooms out. Sometimes the double tap does not work properly and it seems to depend on the web site how well it zooms in and out.

Native browser

Mobile version of Firefox browser is freely available for the N900. The Firefox can synchronize bookmarks with a PC browser version. Tabs, settings, and bookmarks are stored on both sides of the screen. They can be revealed by sweeping the display sideways with a finger.

Mobile Firefox

The N900 provides the best web browsing experience on the mobile phone market today.

Maps

Maps is pre-installed in the application menu. This is not the same Maps application that is provided with Symbian phones. The N900 Maps uses the built-in GPS receiver and shows a location on a map with a red dot. It calculates routes for pedestrians and cars. The route is shown highlighted on a map or it can be viewed also in list format. A big disappointment is that turn-by-turn navigation is not supported. The N900 is useless as a car navigation device, which is a shame. The large and sharp display would have been good for that purpose.

Maps

Moving the map with a touch feels natural. Zooming in and out is easy with a slider. The maps can be shown in basic form, with aerial photos, or with terrain information. Aerial view is cool and quite contrary the terrain setting does not usually bring in any new visible information available. 2D and 3D view modes are available. Landmarks can be shown also as a 3D objects. Other settings are night color scheme and selecting metric or imperial system.

Aerial maps view

I have not used the Maps much due to the lack of turn-by-turn navigation. I have searched some pedestrian routes while walking around a holiday destination. I have also evaluated some driving routes with it.

Camera

The N900 has a 5 megapixel camera and a double LED flash. Auto-focus is triggered by pressing a shutter button half way down. The image quality is on par with other Nokia’s 5 megapixel phone models. Photos from Nokia N95 8 GB device seem to have a bit better color separation and sharpness. I have not done any detailed testing between these two devices. This is purely based on my findings after taking thousands of photos with both mobiles. Camera sensor, optics and image processing algorithms have an impact to the overall image quality.

Camera

The camera supports the following modes: automatic, macro, portrait, night, landscape, and action. The shutter response is slow after pressing the release button and the delay varies between situations. It may take couple of seconds before the auto-focus locks in. Faster operation is available with landscape mode. The auto-focus is permanently locked into infinity, which shortens the delay from pressing the button and when the image has been captured. Other adjustable settings are white balance, ISO sensitivity, exposure compensation, and image resolution. The camera can use geo-tags, which means it can record GPS coordinates into image data EXIF fields if enabled.

Video recording has two modes: automatic and night. Screen format can be chosen to be 4:3 or 16:9. A familiar fact about light is true in video recording and still image capturing. When there is plenty of light on a sunny day the colors come out crisp, contrast is good, details are preserved and there’s no significant amount of noise. Interior shots have less light, which results poor color re-production and increased noise level in dark parts of the frame.

E-mail

E-mail application is quite capable of handling all day-to-day tasks that are needed. It supports several e-mail accounts and it can send and receive attachments. Pdf attachments are opened up with the Acrobat reader. Both the real keyboard and virtual keyboard can be used to type in mails. Both of them are quite good. The keys on a real keyboard are really small, but still I have got very few typos.

Incoming mails can be monitored with a desktop widget. The N900 opens up Internet connection automatically to check if there are any incoming mails. The check period can be adjusted via settings. When Internet connection is open all the desktop widgets also update their status. All this happens in the background without any visible signs to the user. It is also possible to limit the Internet connection only to WLAN networks. I have a fixed price data plan, so I have extensively utilized also 3G for Internet connection.

Other applications

Foreca weather widget is pre-installed and it has proved to be very handy. It shows 4 day weather forecast on a desktop. Touching the widget opens up a 9 day forecast. It is easy to select a city for the forecast once the widget is open.

Mauku is a Twitter client, which is still in Beta phase, but it operates quite well. Tweets can be read and written, but unfortunately Mauku does not provide a desktop widget.

Facebook widget shows latest status updates from your friends. Touching the widget opens up a Facebook site on a web browser.

Summary

Nokia N900 is a brilliant mobile phone for travels with few caveats. Internet experience is strong and it is always with in easy reach. When a lot of power and features are packed into a small volume there’s not much room for use time. The battery has enough capacity for one and a half days. So the N900 needs to be recharged every night. Charging connector is a micro-USB socket, which makes charger a hard to find for a loan. It is better to carry your own charger always with you or at least an adapter that makes most Nokia chargers up to the task.

If you are looking for a basic handset for calls and short messages then the N900 is not a good choice. You would not enjoy any of the N900 benefits. Use time and the missing turn-by-turn navigation are the biggest disappointments. Otherwise the N900 can be recommended to all heavy users of Internet and social media.

Recommended

Europe starts driving on E10 petrol


The new E10 petrol has 10% of ethanol. The ethanol percentage of the current 95 and 98 octane petrols is 5. The aim is that the E10 will be the primary petrol grade and all the 95 octane petrol will be E10. The reason for increasing the ethanol percentage is to reduce carbon dioxide emissions.

Transition period will be a problematic especially for car travelers. European countries have not agreed any common schedule when the transition from the current 95 octane to the new E10 will happen. Most of the new cars can use the E10 without any modifications. So unfortunately the E10 will not be suitable for all the cars. This concerns mostly about older cars, but there might be also some newer vehicles that cannot use the E10. It is good to check if your car runs on E10 before heading to a journey by consulting the car manufacturer. The 98 octane petrol does not change so that it can be used if the E10 is not suitable. The 98 octane is thus called as a protection grade. Finland makes the transition to E10 on January 2011 if the national legislation will be finished on time.

The E10 does not affect the power output of an engine. It does slightly increase a fuel consumption, because ethanol has a lower energy density than petrol.

Winter camping challenges - water

Winter camping

Winter camping

Freezing water is a common problem in winter camping. Fresh water tanks are usually located under the seats in motorhomes, so they stay warm when the heating is on. Some caravans may have the fresh water tank inside the gas bottle locker, which is not heated. These caravans are not suitable for winter camping.

Most caravans do not have a built-in waste water tank, but all motorhomes do have it. It is most often placed under the vehicles floor and near the rear axel. This is a good position considering the weight distribution, since it helps to keep the center of gravity as low as possible. However the position also means that the tank is outside and freezes up easily.

Heated water tank

Electric heating and some insulation around the tank is the most common way to prevent the waste water tank to freeze up. This is available for most motorhome models with a cost of few hundred Euros. The solution really does not make a motorhome winter proof. An outlet pipe hangs in the air under the motorhomes floor and gets covered on snow and ice. The valve mechanism gets jammed and it’s impossible to get the heated waste water out of the tank. There’s no point to pay any extra to get only the tank heated and insulated.

Frozen water outlet

Frozen water outlet

Heated outlet pipe

Some motorhome brands provide insulation and heating also for the outlet pipe. The outlet pipe and valve still tend to freeze up, so this is not a completely reliable solution, but helps to some extent. Electric foils or wires are used to implement the heating, so mains supply is always needed. The system is not on while driving, so snow and ice may clog up the pipe. The heating power may not be sufficient for very cold days. This approach helps through some cold nights, but it is not enough for serious winter camping.

Winter proof solution

The most reliable way to solve the waste water tank freezing problem is to position the tank in a heated part of a motorhome. A natural position can be for example between a heated double floor area. Some motorhomes use Truma’s warm air outlet to keep the tank warm. The outlet pipe and the valve mechanism should be also placed inside a heated area. A separate hatch can be provided to enable easy access to the valve handle.

This solution does not require any additional heating for the waste water system. No extra energy gets wasted to keep the tank warm and mains electricity is not needed. The waste water system is fully functional when a motorhome heating is on - even while driving. The user experience is excellent, since there’s no need to worry about turning the system on or off. This could be also referred to as a low energy solution, which keeps the environment happy.

Replacing Ford Transit’s headlight bulb

Changing a light bulb for the Ford Transit’s headlight can first sound frightening. The van’s manuals instructs to remove the whole light element, which includes all the front facing lights. However, Ford’s engineers have made a good job on the mechanics and it is actually pretty easy to remove the element.

Ford headlight

Ford headlight

A Phillips screwdriver is needed to open up the two screws on top of the element. These are the only screws that fix the element to the chassis. They are quite loose and thus easy to turn. There is one plug at the back of the element in the bottom corner. This plug feeds the electricity for all the lights inside the element. The plug goes into the small green connector shown in the figure. The connector needs to be unplugged.

Ford headlight

Ford headlight

The element is now ready to be removed by pulling straight forward. Be careful not to drop it! The clear plastic front and the shape make it a bit slippery. It is very easy to replace the light bulb, since there’s nothing preventing the access to it. The bulb type is H4 in my Carado, but other types are also possible if you have a different van version.

New bulbs

I replaced the originals with Philips bulbs that promise 25% more visibility with the same rated watts. The new bulbs atleast look more bright when driving through a tunnel. I do not know if they really light up the road any better, since it is mid-summer and there’s no dark even during the night. This is a nice phenomenom in the Finnish summer. Mid-summer nights are almost bright like a day.

I will see if the Philips’ promise holds in the Autumn. The old light bulbs had seen over 29000 km / 18000 miles of road and the light output was probably decreased somewhat. So in that perspective the new bulbs should be clearly better.

Nokia Maps 3.0 improves route planning

Maps on Ovi

The new version of Nokia Maps uses ovi.com service to provide online route planning with a computer. The planned routes can be then synchronized into the phone. Users can also share their location information and all the related content with their friends later on.

The new Maps has high resolutions aerial images and 3D landmark of 216 cities. Pedestrian navigation has been improved and it uses beeps and vibrations to indicate when to make a turn. Straight-line guidance allows to walk the shortest distance between two points. The new NAVTEQ maps are improved and coverage is better.

The new Maps 3.0 is available from Nokia Beta Labs site. The online service is available from Maps on Ovi. They are both still in Beta phase and this means limited support e.g for browser compatibility. I tried to access the Maps on Ovi with Mac and Firefox 3.04 and Safari 3.1.2 browsers, but it did not work. The only supported combinations are Windows + Internet Explorer 6 and 7 or Firefox 2 and 3. PC Suite is needed to update the old version of Maps on your phone, so this requires also Window PC. Nokia.

Nokia N97 for mobile lifestyle

Nokia N97

Nokia has released the ultimate device for mobile lifestyle. The new N97 combines the high performance multimedia capabilities of Nseries with personal Internet services. The device has large 3.5″ touch display and full QWERTY keyboard.

It is an interesting twist from Nokia to combine touch input with full QWERTY. This has taken place before in the N810 Internet Tablet. The physical feedback from the keyboard is better than what touch displays can provide, so sometimes this is an asset.

Nokia N97

N97 can intuitively understand where it is by using A-GPS sensors and electric compass. This information can be used to automatically update status in social networking applications. The user interface can be customized with widgets that download information from web sites and social networking services.

Multimedia capabilities include 5 megapixel camera, support for Share on Ovi photo sharing and Nokia Music Store, 32 GB of on-board memory and support for 16 GB microSD. WLAN and HSDPA provide fast connection to Internet. Nokia expects to start shipping N97 during the first half of 2009. Estimated retail price is EUR 550 before taxes or subsidies. Nokia.

Update: Thursday 4.12.2009

There are couple of demo videos posted by Nokia.
Video 1.

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Video 2.

YouTube Preview Image

Inverter to convert 12 V to 230 V

I have been planning to install an inverter to power up electrical equipments when mains voltage is not available. There are basically two types of inverters: modified sine wave and true sine wave. These are easy to distinguish when browsing the catalogs. True sine wave types are approximately 5 times more expensive than modified ones when the power ratings are the same.

Modified sine wave inverter gives out square wave voltage that resembles sine wave. This is good enough for most electrical equipments. However, all devices cannot operate with this type of low quality electricity. Modified sine wave also generates more interference than true sine wave, so it is not good for sensitive equipments like for example TV signal amplifiers.

True sine wave inverters give out clean sine waveform voltage and can thus power just about any electrical device. I decided to go with the true sine wave inverter to maximize the quality of the electricity

Power ratings and consumption

True sine wave inverters can be purchased with a reasonable price up to 600 Watt power rating. After that the price seems to increase rapidly. I decided that 300 Watts is enough for my needs. I can power up TV, laptop, TV signal amp, and charge mobile phone and camera batteries.

Inverters consume always power when they are turned on even if there is no load. The higher the power rating the higher the idle current consumption. 300 W inverters seem to consume around 0.7 - 1.0 Amps and 600 W inverters approx. 1.4 - 2.0 Amps when idle. Thus it is always good to turn off the inverter when not in use.

The efficiency of true sine wave inverters is around 85%. This means that if the inverter gives out 300 W it draws 352 W from the battery. This equals to 29 A current with 12 V voltage. One leisure battery cannot give out that kind of power for a long period time.

I will give out more details about the inverter that I have selected in my next post. Then I will describe the installation.

Related

Nordic Power 300 W inverter
Inverter installation
Using the inverter

Alko ATC and BPW IDC for caravans

The German Caravaning site has published a five minute video about ESP systems for caravans. Alko has an ATC and BPW has an IDC system. Both systems have intelligent electronic systems that actuates the caravan breaks to stabilize the snake behaviour. The video shows very wild maneuvers and slides with caravans.

Link to the video. Our previous IDC introduction article.

Tom Tom version numbers

Tom Tom uses two different notations to show the version numbers of the maps. The online store displays version numbers in the form of v7.15. The same thing shown in the navigator display is v715.xxxx.

How to check Tom Tom version numbers?

Tap the bottom right corner when you are navigating in the driving view. This brings up the summary screen. There is a version number indicating the application SW version in the bottom right corner. Tapping this version number reveals a new screen that has more detailed information about your navigator. The application SW version is shown in more detail, the available free memory, map that you are currently using and the version number of the map.

BPW chassis with iDC

BPW iDC

BPW has launched Intelligent Drive Control (iDC) system for caravans that prevents snaking. It can be retrofitted and it adds up 6 kg of weight.

BPW iDC

Acceleration sensor is attached to the axle and it tracks the caravan movements. If the sensor notices oscillation it will send a braking command to the central unit. The central unit housed on the overrun hitch will activate the brakes by using an electric motor. The caravan is automatically drawn back on track in seconds.