UK TV in France

[exile]

Just one point about bigger dishes - the bigger they are, the more accurate you have to be with the alignment. I managed to align a 60cm dish just by watching the TV screen. With a 1m dish you might have to buy one of the gizmos that check signal quality and help with the alignment.

[Pachapapa]

@exile
Dish alignment; for a one metre dish your reception beam can be considered a coherent long cylinder of 1m diameter. Approximately three times larger than for 0.6m dish. And as a plus you are further South and closer to satellite.
The problem of adjustment is related to your diameter selection..... A weaker signal footprint.

[ihatew0rk]

Pachapapa, do you mean it doesn't matter about the size (ooh matron) if I'm further north? I'm confused now, sorry!

[exile]

@exile
Dish alignment; for a one metre dish your reception beam can be considered a coherent long cylinder of 1m diameter. Approximately three times larger than for 0.6m dish. And as a plus you are further South and closer to satellite.
The problem of adjustment is related to your diameter selection..... A weaker signal footprint.

Not as described to me. The bigger dish has a shallower parabola relative to the smaller one. This means that alignment is more critical. It is a bit like catching water from a fountain. Much easier with a glass than a bigger soup plate where a lot will splash out unless you get the angle of catch just right.

[Pachapapa]

Pachapapa, do you mean it doesn't matter about the size (ooh matron) if I'm further north? I'm confused now, sorry!

Images
https://www.bing.com/images/search?view ... t=4&sim=11
The closer you are to UK the stronger the signal so a 60cm dish will be sufficient. In contrast the use of a large dish implies a southerly french location.

[Pachapapa]

@exile
Dish alignment; for a one metre dish your reception beam can be considered a coherent long cylinder of 1m diameter. Approximately three times larger than for 0.6m dish. And as a plus you are further South and closer to satellite.
The problem of adjustment is related to your diameter selection..... A weaker signal footprint.

Not as described to me. The bigger dish has a shallower parabola relative to the smaller one. This means that alignment is more critical. It is a bit like catching water from a fountain. Much easier with a glass than a bigger soup plate where a lot will splash out unless you get the angle of catch just right.

No I disagree with you!
Raindrops and microwaves do not have similarity as to properties.
Believe me I checked it with Schrödingers cat.
Put it another way a big fat broad searchlight beam will have more chance of illuminating the Messerschmitt.

[beejay]

Large dishes are harder to align than smaller ones.

From a TV enthusiasts' forum.........................

https://tinyurl.com/yyjfqtyb

[Pachapapa]

Interesting discussion for small and large axially focus parabolic dishes.
But today all dishes under 100cms diameter have an offset focus where the reflection surface is a circular portion of a larger paraboloid. Offset dishes due to the LNB support arm being apparently visible making setting of azimuth and elevation particularly easy.