Förutsatt att täckningen är bra väljer jag mobiloperatören.

Förutsatt att means provided that, assuming that, or on condition that. It introduces a condition.

So in this sentence, it sets up the idea:

• if the coverage is good
• provided that the coverage is good

It is perfectly correct Swedish, but it sounds a bit more formal or written than simple om.

Compare:

• Förutsatt att täckningen är bra ... = Provided that the coverage is good ...
• Om täckningen är bra ... = If the coverage is good ...

In everyday speech, many people would more naturally say Om täckningen är bra, väljer jag mobiloperatören.

This is because Swedish follows the V2 rule in main clauses. V2 means the finite verb usually comes in the second position.

The sentence begins with the conditional phrase:

• Förutsatt att täckningen är bra

After that, the main clause starts. Since the first position is already occupied by the conditional phrase, the verb must come next:

• väljer = second position
• jag = after the verb

So:

• Förutsatt att täckningen är bra, väljer jag mobiloperatören.

This is the same pattern as in:

• I dag går jag till jobbet. = Today I’m going to work.
• Om det regnar, stannar vi hemma. = If it rains, we stay home.

If you started with jag, then you would say:

• Jag väljer mobiloperatören, förutsatt att täckningen är bra.

Täckning means coverage, and täckningen means the coverage.

Swedish often uses the definite form where English might use either coverage or the coverage, depending on context. Here it refers to the coverage being discussed for that operator or service, so the coverage sounds natural.

Forms:

• en täckning = a coverage
• täckningen = the coverage

In real usage, täckning is commonly used for phone/network signal coverage.

Here täckning means network coverage or signal coverage.

In the context of mobile service, it refers to how well the operator’s network works in the relevant area.

So täckningen är bra means:

• the signal is good
• the network coverage is good

It does not mean physical covering in this sentence. The word has several possible meanings, but in telecom contexts, coverage is the correct one.

Mobiloperatören is the definite form: the mobile operator.

Forms:

• en mobiloperatör = a mobile operator
• mobiloperatören = the mobile operator

Using the definite form suggests that a specific operator is meant, or that the operator under discussion is already understood from context.

If you wanted a more general meaning, you might say:

• ... väljer jag en mobiloperatör. = ... I choose a mobile operator.

But mobiloperatören sounds like there is a particular operator being considered.

Yes. Väljer is the present tense of välja = to choose.

• jag väljer = I choose / I am choosing

But just like English sometimes does, Swedish often uses the present tense for future situations when the context makes it clear.

So this sentence can mean:

• I choose the mobile operator
• I’ll choose the mobile operator
• I’m choosing the mobile operator

depending on context.

If you wanted to make the future idea more explicit, you could say:

• ... kommer jag att välja mobiloperatören.

But that is not necessary in many everyday situations.

Bra is the normal word for good in this kind of sentence.

• Täckningen är bra = The coverage is good

Using god here would sound wrong. God is used in more limited contexts, such as:

• god mat = good food
• god idé = good idea
• en god vän = a good friend
• god morgon = good morning

For technical quality, performance, usefulness, or general evaluation, bra is usually the correct choice.

In Swedish, the comma is often optional before the main clause in sentences like this, especially when the introductory clause comes first.

So both are possible:

• Förutsatt att täckningen är bra väljer jag mobiloperatören.
• Förutsatt att täckningen är bra, väljer jag mobiloperatören.

Many writers would include the comma because it makes the sentence easier to read. But leaving it out is also common.

So this is more a punctuation/style issue than a grammar issue.

Yes. In many situations, om would be the most natural everyday choice.

• Om täckningen är bra, väljer jag mobiloperatören.

That means almost the same thing as the original sentence.

The difference is mostly tone:

• om = neutral, common, everyday
• förutsatt att = more formal, more like provided that

So if you are speaking casually, om is often the easier and more natural option.

Yes. Förutsatt is the supine/past participle form related to the verb förutsätta, which means to presuppose, to assume, or to require as a condition.

In the fixed expression förutsatt att, it functions like provided that or assuming that.

You do not need to analyze it every time, because förutsatt att is very much a set phrase. It is best learned as a whole expression.

Related forms:

• förutsätta = to assume / to presuppose
• jag förutsätter = I assume
• förutsatt att = provided that

It is grammatical and understandable Swedish. A native speaker might well say it, especially in writing or in a slightly formal context.

That said, in everyday speech, many speakers would probably prefer something simpler, such as:

• Om täckningen är bra, väljer jag mobiloperatören.
• Om täckningen är bra så väljer jag mobiloperatören.

Also, depending on the exact meaning, a native speaker might choose a more specific verb than väljer, for example:

• ... tar jag den mobiloperatören. = ... I’ll go with that mobile operator.
• ... väljer jag den operatören. = ... I choose that operator.

So the original sentence is correct, but the most natural version depends on context.