Anyone recomend a Digital TV aeriel?

[The Natural Philosopher]

I think you missed the note of utter sarcasm that was meant to be obvious in my post, Dave

I.e. that a common earth with large circulating currents is a disaster, but there is nothing ultimately wrong with a large unbalanced coax feeder (as long as its not manipuleated) for a low impedance microphone.

If you want more, sticking a transformer on the end don't cut the mustard, but using TWIN balanced feed in a seperate shield does,

However what is under discussion is nothing more or less than a length of 75ohm coax, which it is claimed 'will pick up signals in the sheath'

well so it will, but thats why its earthed and a coax. So that all that signal is applied equally to the 'cold' side of your RF input stage. How you drive it isn't going to effects its properties as an aerial.

[Ian White]

Not "in" - ON the outer surface of the sheath. Completely different signals can flow on the inside and outside of a coaxial cable. The balun is to stop interference entering the coax at the open end where it connects to the aerial.

[Dave Plowman (News)]

It's not earthed when connected to the average TV set.

[tony sayer]

And what is so very different apart from the voltages and currents?..

[tony sayer]

Good site that:) Logs are used more because they present easy logistics in that they can be used for any part of the band. They as you state are used for receiving and transmitting where oddly enough they behave the same;!..

Of course their only low power devices and have their own interesting patterns especially when stacked in various ways.

For high power systems array's of Panels are used, needless to say don't want any misplaced currents floating around in the Third pic from Bottom;)...

>

[tony sayer]

Same difference;-)...

Yep those who know the mysterious black arts of RF know.. Dontcha know;)..

>

[tony sayer]

N.P. ...

Stop digging;!.....

[Nicholas Finlay]

My Freeview has several channels that pop and jump; the majority being fine. I'm tempted to try Maplin's signal amplifier. Anyone have experience on this?

[The Natural Philosopher]

Probably not.

On my system the popping and jumping is nt lack of signal, its lack of signal quality.

Usually due to interference from other TV transmitters, but multipath and trees is the in laws problem

[tony sayer]

That more often than not can be cured with a satellite dish and Freesat if they can stomach the idea of a dish that is;)..

[John]

I found that a good aerial and a new downlead fixed my problems.

I have noticed that some people seem to 'knock' Freeview. I think it is excellent and is good value for money (£20 for box). I am in a poor reception area and went to Cable to get a good picture about 12 years ago. About 2 years ago I borrowed a set-top-box and found I could get some stations so decided to splash out on a new aerial and it works fine - I also have a distribution amplifier to get it into other rooms. £150 the lot.

[dennis]

I think you can get sky freesat for £75 ATM or at least I think that's what currys were selling.

[Dave Plowman (News)]

Trees can be a problem for satellite reception. As can heavy rain and snow.

[Dave]

Because we are in a poor position due to some trees that have grown very tall, we had a new super duper aerial fitted and that improved things on both terrestrial and free view, until it rained and the leaves got wet, then the free view started to pixalate. I bought the same amplifier that you mention and it has been fine this year, though it didn't do too well last year in the wet, some of the stations pixalated.

On your free view box, you should be able to find a menu that lets you see the signal quality and strength on screen. I'll go and see how I get into it.

Current one has no option, but the Sagem I had before it allowed sig. strength and quality to be viewed.

Dave