advice re external phone aerial please

Submitted: Tuesday, Nov 26, 2013 at 19:10
ThreadID: 105275 Views:1364 Replies:2 FollowUps:3
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Have a mobile one cdma external aerial approx 95 cm in length. I am advised it will not work with 3g or 4g systems as it is the wrong frequency. It has a booster that i am told is illegal to use. My samsung galaxy has improved range with the newer antennae that suit 3g and 4g, but nothing with the cdma unit.
Can this aerial be used for anything or is it useless without a cdma network,any suggestions ???
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Reply By: wizzer73 - Tuesday, Nov 26, 2013 at 19:34

Tuesday, Nov 26, 2013 at 19:34
this post may be of help

link to post

wizzer
AnswerID: 522151

Follow Up By: pepper2 - Tuesday, Nov 26, 2013 at 20:36

Tuesday, Nov 26, 2013 at 20:36
thankyou for the link ,i see that some suggest that the cdma aerial will work with 3g , it is not my experience.am i doing something wrong ???????
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Reply By: Robin Miller - Tuesday, Nov 26, 2013 at 20:43

Tuesday, Nov 26, 2013 at 20:43
The problem is not the aerial it is the booster.

The aerial could be made to work without the booster.

The CDMA and Nextg type signals are quite different and a CDMA booster can't work with nextG.

(You did not say but I presume you were referring to low band 3g services above, e.g. Telstra 800-900mhz , as other services exist that use higher frequency bands with which the aerial itself is not compatiable)
Robin Miller

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Follow Up By: pepper2 - Wednesday, Nov 27, 2013 at 08:42

Wednesday, Nov 27, 2013 at 08:42
i have seperated the aerial from the booster , connected the aerial directly to the phone via the port on the back of the phone an it doesnt work,tried the same with a new 7db aerial and that does work.
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Follow Up By: Robin Miller - Wednesday, Nov 27, 2013 at 17:53

Wednesday, Nov 27, 2013 at 17:53
That means that where ever you connected it to is not place where a normal coax (both sides) would be connected to Pepper

Perhaps the booster is not a screw on inline device but is designed to match a high resistance (impedance) aerial.

E.G an antenna designed to be a 1/2 wavelength long has a high resistance so they have a matching coil where the coax connects.

Do you have a description of the type of aerial or a link !

Robin Miller

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