Analogue multimeter/To use as TV signal finder?
- Thread starter decon306
- Start date
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I doubt it very much.
But why bother, you can buy a ready-made signal finder for £10
But why bother, you can buy a ready-made signal finder for £10
No !
It requires a tuned receiver with fixed gain ( amplification ) to select the only TV channel(s) of interest and reject the often much stronger signals from all other radio stations. wifi networks and mobile phone system.
It requires a tuned receiver with fixed gain ( amplification ) to select the only TV channel(s) of interest and reject the often much stronger signals from all other radio stations. wifi networks and mobile phone system.
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As already said the meter needs to be part of a tuned circuit and I have never tried it but it is possible once feed through something like a video recorder you may get some sort of discrimination.
However the new digital TV's it seems have meters built in so really no need.
I was surprised when trying to position my sky dish the difference between the Sky+ box and the free to air box. The sky box had a bar graph which tended to jump so it did not matter how slowly one tried to move the dish the signal jumped that much it seemed impossible to set. However the free to air box was much finer in the way the bar graph reacted plus it also had a sound one could use as well for tuning.
I would guess the freeview receivers are similar with some reacting faster than others.
I would agree the S meter built into my radio is far easier to use and I can get a direction fix far quicker. However when I consider the cost of the radio compared with cost of set-top box that is only to be expected.
However the new digital TV's it seems have meters built in so really no need.
I was surprised when trying to position my sky dish the difference between the Sky+ box and the free to air box. The sky box had a bar graph which tended to jump so it did not matter how slowly one tried to move the dish the signal jumped that much it seemed impossible to set. However the free to air box was much finer in the way the bar graph reacted plus it also had a sound one could use as well for tuning.
I would guess the freeview receivers are similar with some reacting faster than others.
I would agree the S meter built into my radio is far easier to use and I can get a direction fix far quicker. However when I consider the cost of the radio compared with cost of set-top box that is only to be expected.
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Many freeview receivers take time to update the signal strength indicator because they also ( attempt to ) decode the signal to calculate the error rate before updating the display of signal strength and quality.
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In which case the rotator would need to be very slow. Think mine takes around 90 seconds to move full 360 degrees think that would be too fast.
Beware, don't forget how Rod Hull met his end.
Here he is practising for his final performance
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