mobile phone boosters-help please
Submitted: Thursday, May 29, 2008 at 17:38
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Member - lyndon K (SA)
Hi, does anyone know anything about these boosters or is it a scam?
Have spoken to a guy who has a friend :), who had one for his cdma, used to work a treat.
Just come from
Roper Bar where we used to have cdma coverage, no nextG coverage.
We want the booster for nextG,have a 6120 with a force car kit.
http://www.mobilephoneboosters.com.au/boosters/buy-now.html
Sorry, now how do i post a live link? :)
Thanks Lyndon & Bernadette
Reply By: Member - joc45 (WA) - Thursday, May 29, 2008 at 17:54
Thursday, May 29, 2008 at 17:54
Hi Lyndon,
with a 3 watt booster, it sounds illegal to me, given that GSM and CDMA have 0.5w peak power output.
I note the significant disclaimer from the seller about it being the responsibility of the buyer to
check if it's legal probably says it all.
The Aust Communications Authority has limits on transmitted power for good technical reasons, not bureaucratic reasons.
It might work, but it's like taking a loud hailer to a party so you can make yourself heard above the others, never mind the others.
Gerry
AnswerID:
306562
Reply By: Mike Harding - Friday, May 30, 2008 at 07:55
Friday, May 30, 2008 at 07:55
In 99% of cases there will be no point in increasing power for a GSM phone; GSM is limited to 33km full stop (a few country cells allow 66km but can only handle half the number of calls). The reason is that GSM uses time slots and at more than 33km the speed of light is too slow to meet the timing requirements, doesn't matter if you have the phone's maximum 2W or a 100W power amp.
NextG is "line of sight" so additional power will help, but only a little, if you increase the power by a factor of five do not expect to get five times the distance, if you got 25% more distance you'd be doing
well.
At $400 for the amp I would be buying a top quality antenna instead.
Mike Harding
AnswerID:
306684
Follow Up By: Member - lyndon K (SA) - Friday, May 30, 2008 at 17:57
Friday, May 30, 2008 at 17:57
Hi Mike
The add claims up to 200km range from a 3g tower(is that the same as nextG?) and is the claim a joke?
I have an external antenna from electric bug, i guess it's a good one?
Thanks
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Follow Up By: Mike Harding - Friday, May 30, 2008 at 18:21
Friday, May 30, 2008 at 18:21
Hi Lyndon
I think the key part of the claim here is the words "up to".
If your phone is at an elevation of (say) 2000m and you add a power amplifier then I am prepared to believe you _might_ obtain an extra 200km range. However if your phone is rather more "down to earth" (in all senses) then it doesn't have a snowballs chance in hell of obtaining an additional 200km simply be adding extra power.
900MHz (NextG - I'm not sure about 3G) is, very much, a "line of sight" frequency and adding power to it will not increase its range by much - as I'm often trying to tell UHF CB people who want "super powerful radios".
A good antenna will serve you far better than high power.
Mike Harding
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572693