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Irish Broadband lowering price to EUR 30 inc vat

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    #32
    Urban Weigl
    Closed Accounts Posts: 2,784 ✭✭✭Urban Weigl


    Originally posted by STaN
    So yours saying that even with 5% of the power limit of the US, they can achieve the same non-LOS preformance as in the US at the same distances?

    In the U.S., Navini has a range of 10 miles (16.1km) and beyond, from what I understand. In contrast, IBB are only going 5km. In addition, technology has moved on since mobile phones, and they're using quite a large unit with a 8-inch antenna (I think it differes slightly on the frequency), which will be a lot better at receiving signal than your mobile.


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    #33
    STaN
    Registered Users Posts: 2,127 ✭✭✭STaN


    Originally posted by Urban Weigl
    In the U.S., Navini has a range of 10 miles (16.1km) and beyond, from what I understand. In contrast, IBB are only going 5km. In addition, technology has moved on since mobile phones, and they're using quite a large unit with a 8-inch antenna (I think it differes slightly on the frequency), which will be a lot better at receiving signal than your mobile.

    Fair 'nuff, but that isnt 10miles @ non-LOS & completely internal from what i understand.

    If they can only do 4miles nonLOS, then taking that same ration, they can only do 2km MAX nonLOS


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    #34
    Urban Weigl
    Closed Accounts Posts: 2,784 ✭✭✭Urban Weigl


    Double the power doesn't usually mean double the range. IBB are saying 5km max from what I know, and I'm pretty sure this is LOS (or near-LOS).


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    #35
    STaN
    Registered Users Posts: 2,127 ✭✭✭STaN


    Originally posted by Urban Weigl
    Double the power doesn't usually mean double the range. IBB are saying 5km max from what I know, and I'm pretty sure this is LOS (or near-LOS).

    Yeah but im sure 5% of the power effect its abilities to penetrate solid walls :)


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    #36
    Urban Weigl
    Closed Accounts Posts: 2,784 ✭✭✭Urban Weigl


    Originally posted by STaN
    Yeah but im sure 5% of the power effects its abilitis to penetrate solid walls :)

    Depends on the number of walls. :)


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    #37
    zz03
    Closed Accounts Posts: 255 ✭✭zz03


    Originally posted by STaN
    My mobile phone broadcasts at 1W... 10 times the allowed power limit in 2.4Ghz.

    So yours saying that even with 5% of the power limit of the US, they can achieve the same non-LOS preformance as in the US at the same distances?

    I'm saying that ripwave operates using cells which should be relatively small in an urban area - therefore they don't need much power.

    Your mobile phone (assuming it is GSM) operates on varying wattages from a few milliwats to 2 watts. In an urban area it will normally be transmitting at far less than 1 watt. It can also operate 20kms or more from a cellsite in rural areas by jacking up the power.

    Ripwave is CDMA based not unlike 3G phones. A 3G phone (WCDMA) operates at about 0,6 mW in an urban environment and 7mW in a rural environment. The maximum power output of a 3G handset is between 125 and 250 mW depending on model.

    If you look at Irish Broadband's cellsite locations (see their website) they could cover a large part of Dublin with cells of about 4km range if they upgraded these sites to Ripwave.

    zz..


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