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[Miggy24]

Hi all has anyone fitted/got a in car freeview box

[Jay w]

i had one in a Zafira......

It was crap on the move, however it was about 4 years ago and the digital signal has improved.

And another aerial was required

[Miggy24]

Ok mate nice one but like you said prob better now with the signal

[Kevin Wood]

Digital TV has very poor resistance to multipath fading, which means it'll always be a dead loss when moving. I would only bank on it being any good when parked up, and even then you'll have to be lucky with the signal strength.

Just not something the transmission standard was designed to cope with, unfortunately. :-/

Kevin

[Entwood]

Freeview is pretty crap in the "tin tent" as the aerial height is pretty low and gets obstructed easily (Digital broadcasts are line-of-sight from the transmittter), I would imagine that a car would be even worse as the aerial is lower and the line-of-sight is continually moving, as well as numerous obstructions .. ie passing lorries/buses etc etc  

[Dave DND]

Until such time that a FreeView signal is strong enough to be received whilst on the move, like many other reputable Car Audio Dealers out there, due to the amount of problems we have had with poor signals and annoyed customers, we are now refusing to sell or fit them.

Analogue TV in a car was poor at the best of times, but that was like HD when compared to the current Digital offerings.

 

What exactly was wrong with DVD in the back of the car anyway?

 :-/

[partsman]

Freeview is pretty crap in the "tin tent" as the aerial height is pretty low and gets obstructed easily (Digital broadcasts are line-of-sight from the transmittter), I would imagine that a car would be even worse as the aerial is lower and the line-of-sight is continually moving, as well as numerous obstructions .. ie passing lorries/buses etc etc  

All Tv signals are line of sight from the transmitter......in fact anything above SW is line of site transmission!

As said many times before, there is no such thing as a digital signal.....its simply a standard analogue transmission carrying digital info......in simple terms an enhanced version of the teletext coding in the top set of un-viewed lines on 'analogue'!

Its not more prone to multipath than analogue, its simply a case of that it has a greater imapct on the signal.....on an analogue picture you would see graining or faint ghosting....on digital pictures it directly impacts on the de-compression algorithms and hence results in an increased BER (Bit Error Rate) and sudden picture loss

[Martin_1962]

Drive around with a DAT75 on the roof

[Kevin Wood]

Its not more prone to multipath than analogue, its simply a case of that it has a greater imapct on the signal.....on an analogue picture you would see graining or faint ghosting....on digital pictures it directly impacts on the de-compression algorithms and hence results in an increased BER (Bit Error Rate) and sudden picture loss

Agreed. You will get the same multipath effects on the physical signal as it's at the same frequency but how the TV standard copes with it is very different. When that multipath is smudging hundreds of consecutive symbols of a digital signal together, you need a transmission standard and receiver specifically designed to remove it, or you will get nothing useful out of it.

It's also worth mentioning that it doesn't necessarily matter what signal strength you have. If it has bad enough multipath you can't demodulate it successfully however strong the signal is.

A DVD is a much better proposition, IMHO, unless and until the much talked-about mobile TV standards take off.

Kevin

[stuart30]

There is ofcourse an option.....

Laptop...data dongle....then use one of the free too view sites and watch freeview.

[tmx]

with Freeview its the Signal Quality thats important not stregnth

many tv aerials ive wired up for friends have had a 40% signal stregnth and 70% signal quality

its also worth mentioning that freeview doesnt work too well with TV amplifiers as they can amplify noise if the aerial isnt setup well enough

[VXL V6]

with Freeview its the Signal Quality thats important not stregnth

many tv aerials ive wired up for friends have had a 40% signal stregnth and 70% signal quality

its also worth mentioning that freeview doesnt work too well with TV amplifiers as they can amplify noise if the aerial isnt setup well enough

Yep, same with any type of amplifier, Garbage in = Garbage out

[Woodfull]

There is ofcourse an option.....

Laptop...data dongle....then use one of the free too view sites and watch freeview.

Wouldn't want to try and source a fascia adaptor for a laptop  

Seriously though ...do you spend enough time static in the car to justify purchasing one??

I have a dvd fitted, raises very obvious issues if attempting to watch a film/concert whilst driving.

[feeutfo]

mate of a mate has bmw e39 5 series with dvd sat nav activated for tv, the factory turn the option off for safety and probably quality reasons, it is totally useless on the move and not much better parked up. You have to move the car to get signal every time you change channel.

As usual with new tech, every where else in the world seems to be getting mobile tv well before the uk, presumably being mobile and less bandwidth it will work on the move? Anybody seen it in action... in Europe maybe?

[Marks DTM Calib]

mate of a mate has bmw e39 5 series with dvd sat nav activated for tv, the factory turn the option off for safety and probably quality reasons, it is totally useless on the move and not much better parked up. You have to move the car to get signal every time you change channel.

As usual with new tech, every where else in the world seems to be getting mobile tv well before the uk, presumably being mobile and less bandwidth it will work on the move? Anybody seen it in action... in Europe maybe?

Mobile TV has been round for a while.....sadly the BBC stopped thier service around 6 months ago.